IPv6 Support on the Cisco ASR 901 Router

C H A P T E R 32

IPv6 Support on the Cisco ASR 901 Router

This document provides implementation and command reference information for IPv6 features supported on the Cisco ASR 901 router. We strongly recommend that you read this entire document before reading other documents on IPv6 for Cisco IOS software.

Detailed conceptual information about the features supported on the Cisco ASR 901 router, is documented outside of this feature in the Cisco IOS software documentation. For information about the location of this related documentation, see the “Feature Information for IPv6 Support on the Cisco ASR 901 Router” section on page 32-49.

Complete configuration information of ASR 901-specific IPv6 features is provided in this document. This information can be found in the “How to Configure IPv6 Support on the Cisco ASR 901 Router” section on page 32-8.

Finding Feature Information

Your software release may not support all the features documented in this module. For the latest feature information and caveats, see the release notes for your platform and software release. To find information about the features documented in this module, and to see a list of the releases in which each feature is supported, see the “Feature Information for IPv6 Support on the Cisco ASR 901 Router” section on

page 32-49.

Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to http://www.cisco.com/go/cfn. An account on Cisco.com is not required.

•Prerequisites for IPv6 Support on the Cisco ASR 901 Router, page 32-2

•Restrictions for IPv6 Support on the Cisco ASR 901 Router, page 32-2

•Information About IPv6 Support on the Cisco ASR 901 Router, page 32-2

•How to Configure IPv6 Support on the Cisco ASR 901 Router, page 32-8

•Configuration Examples for IPv6 Support on the Cisco ASR 901 Router, page 32-39

•Additional References, page 32-47

•Feature Information for IPv6 Support on the Cisco ASR 901 Router, page 32-49

	Cisco ASR 901 Series Aggregation Services Router Software Configuration Guide

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Cisco Systems A9014CFD manual IPv6 Support on the Cisco ASR 901 Router, 32-1

Contents

Text Part Number OL-23826-09 Americas Headquarters Copyright 2011-2013, Cisco Systems, Inc Iii N T E N T S Related Documents Standards MIBs Standards MIBs Searching and Filtering Output of show and more Commands Vii Split-Horizon8-6 Viii Restrictions Manually Configuring an IP SLA CFM Probe or Jitter Operation Restrictions Overview Xii Setting up Manual Preemption for Vlan Load Balancing Xiii Configuring Mpls VPNs 19-6 Xiv Verifying Local Switching Xvi Verifying the Synchronous Ethernet configuration Xvii Cisco IOS IP SLA Xviii Marking Xix Technical Assistance Xxi Configuring Hsrp Xxii Configuring Link Layer Discovery Protocol Xxiii How to Configure Bert 32-2 Xxiv Xxv Configuring IPv6 Duplicate Address Detection Troubleshooting Tips Xxvii BFD Xxviii Verifying Layer 2 Tunneling Xxix Configuring Unspecified Bit Rate Xxx Creating IPv6 VRFs on PE Routers Xxxi Technical Assistance Xxxii Finding Feature Information Xxxiii Igmp Xxxiv IPv6 Multicast Groups Xxxv Span Traffic Xxxvi Document Number Date Change Summary About This GuideDocument Revision History Xxxviii Xxxix OL-23826-09 Xli Xlii Xliii Xliv Xlv Xlvi Audience ObjectivesOrganization Xlvii Xlviii Mpls OAM Xlix SLA Chapter Description ConventionsConvention Description Boldface font Release Notes To access the related documentation on Cisco.com, go toRelated Documentation Lii Cisco ASR 901 Router Overview Performance Features FeaturesIntroduction This section contains the following topics Management Options Manageability Features Quality of Service and Class of Service Features Security Features Monitoring Features Layer 3 FeaturesLayer 3 VPN Services OL-23826-09 Licensing Finding Feature InformationContents Licenses Supported on Cisco ASR 901 Router Feature OverviewFollowing licenses are supported License Sl.No Chassis PID License PID Description Licensing Licenses Supported on Cisco ASR 901 Router Features Supported Feature Based LicenseLicense Features License Types Port Based/Mode License Port or Interface Behavior1588BC License Port Number Port Type Chassis PID License Required Example When Port Based License is Installed Example When Port Based License is not InstalledPort Based License Router# show ip interface brief Example When 10gigUpgrade License is not Installed 10gigUpgrade LicenseRouterconfig# interface gig 0/0 Router# show interface Ten0/1 Example When Flexi License is not Installed Example When 10gigUpgrade License is InstalledFollowing is a sample output from the show license command Flexi License Example When 1588BC License is not Installed Example When Flexi License is InstalledExample When 1588BC License is Installed Following example shows how to install the 1588BC license Routerconfig-ptp-clk#no ptp clock boundary domain Use the license clear command to remove the 1588BC licenseRemoving the 1588BC License Router# license clear 1588BC Enable License install Copy tftp flash Show flash Installing the LicenseLicense install license-file-name Generating the License Example Command PurposeChanging the License Router# license install ? Return Materials Authorization License ProcessExample RMA Process Router# copy tftp flash To verify the new license, use the show license command Where to Go Next MIBs StandardsRFCs Standard Description Link Technical Assistance Feature Name Releases Feature Information Feature Information for Licensing OL-23826-09 Before Starting Your Router First-Time ConfigurationSetup Mode Configuring Global Parameters Using Setup Mode Enter a hostname for the router this example uses Completing the Configuration Verifying the Cisco IOS Software Version Configuring the Hostname and PasswordPassword prompt appears. Enter your password Exit back to global configuration mode Verifying the Hostname and PasswordRouter# configure terminal Router# show config Managing and Monitoring Network Management Features This section contains the following procedures Network Management Features for the ASR Enables privileged Exec mode Configuring Snmp SupportEnter your password if prompted Enters global configuration mode String-Community string is the password to access the Snmp Form of this command removes the specified community stringProtocol View view-name-Optional Previously defined view. The view Notification-type -snmp authentication -Enables RFC CommandEnvmon voltage shutdown supply fan temperature -When Temperature Snmp-server host command Command Purpose Exits global configuration mode Configuring Remote Network ManagementEnable Configure terminal Interface loopback number Command or Action Purpose Zero-Touch Deployment Zero-touch Deployment Image Download Network ip-address subnet-mask Configuring a Dhcp ServerSpecifies to exclude IP address of the Dhcp server Ip dhcp Creating a Bootstrap Configuration Configuring a Tftp Server Enabling a Tftp Server on the Edge Router Configuring the Cisco Configuration Engine Example Configuring Snmp Support Configuration ExamplesExample Configuring Remote Network Management Example Configuring a Dhcp Server Example Zero-touch Deployment Additional ReferencesRelated Documents Related Topic Document Title MIBs Network Management Features for the ASR Understanding Command Modes Using the Command-Line Interface User Exec Log Entered. Use a passwordExit, or logout Use the interface Line console Understanding the Help SystemCtrl-Z or enter end Help Understanding no and default Forms of Commands Understanding Abbreviated CommandsUnderstanding CLI Error Messages Router# show conf Changing the Command History Buffer Size Using Command HistoryError Message Meaning How to Get Help Range is from 0 to Recalling Commands Using Editing FeaturesDisabling the Command History Feature Enabling and Disabling Editing Features Capability Keystroke1 Purpose Editing Commands through KeystrokesPress Ctrl-Y Backspace key Press Ctrl-V or Esc Q Editing Command Lines that WrapReturn and Space bar Press Ctrl-L or Ctrl-R Router# show interfaces include protocol Accessing the CLICommand begin include exclude regular-expression Saving Configuration Changes Upgrading the Cisco IOS image Software UpgradeSelecting a Cisco IOS Image Router# show file system Copy the IOS Image from the Tftp serverIf the right steps are not followed properly Verify the Cisco IOS upgrade Save the configuration and reload the routerVerify the Cisco IOS image in the file system Router# verify flashasr901-universalk9-mz.151-2.SNG Router# show version Auto Upgrading the MCU Manually Upgrading the Rommon Router# upgrade rom-monitor internal Auto Upgrade of RommonRommon AUTOUPGRADEROMMON=TRUE False Configuring the Interface Configuring Gigabit Ethernet InterfacesTo configure the GE interface, complete the following steps Enters enable mode Gigabitethernet 0/1 Setting the Speed and Duplex ModeCdp enable Mtu bytes Enabling the InterfaceModifying MTU Size on the Interface Verifying the MTU Size No mtu or default mtu command Complete the following steps to configure MAC Flap control Configuring MAC FLap ControlMAC Flap Control Restrictions and Limitations Restrictions Configuring a Combo PortMac-flap-ctrl on per-mac mac-movement Time-interval Exits interface configuration mode and enters Configures the media typeAuto-select-Specifies dynamic selection Physical connection Router# show interface gigabitethernet 0/7 Verifying the Media TypeRouter# show interface gigabitethernet 0/1 Configuring Ethernet Virtual Connections Supported EVC Features Ethernet Virtual Connections Understanding EVC FeaturesService Instances and EFPs Encapsulation To the appropriate EFP Configures default encapsulationBridge Domains Rewrite Operations Dhcp Client on Switch Virtual InterfaceSplit-Horizon Configuration Guidelines Configuring EFPsDefault EVC Configuration Creating Service Instances Default Service instance number ethernet nameShow ethernet service instance Copy running-config startup-config Example Configuring a Service Instance Configuration Examples of Supported FeaturesExample Encapsulation Using a Vlan Range Example Bridge Domains and Vlan Encapsulation Router config-if-srv#rewrite ingress pop 1 symmetric Router config-if-srv#rewrite ingress tag pop 1 symmetricExample Rewrite Example Split Horizon Example Overlapping Encapsulation Configuration Examples of Unsupported FeaturesExample Filtering Interface type number How to Configure EVC Default EncapsulationConfiguring EVC Default Encapsulation with Bridge-Domain An identifier Configuring EVC Default Encapsulation with XconnectConfigures the default service instance Verifying EVC Default Encapsulation with Bridge-Domain Verifying EVC Default Encapsulation with Xconnect Configuring Other Features on EFPsConfiguration Examples for EVC Default Encapsulation Example Configuring EVC Default Encapsulation with Xconnect MAC Address Forwarding, Learning and Aging on EFPs EFPs and EtherChannels Interface type slot/port No mac-address-table learning vlan vlan-id Routerconfig# no mac-address-table learning vlan End Return to privileged Exec modeAddresses learned on a particular VLAN/BD Router# show mac-address-table 802.1Q Tunneling QinQ Configuring Ieee 802.1Q Tunneling using EFPsRouter# show mac-address-table interface 0/9 Router# show mac-address-table interface port-channel 1shows the tag structures of the double-tagged packets You can use EFPs to configure 802.1Q tunneling in two ways Configuration Examples Routed QinQ Configuration ExampleCisco ASR 901 router supports pop 2 configuration Bridge Domain Routing Example Configuring Bridge-Domain Routing Configuring Dhcp Client on SVI How to Configure Dhcp Client on SVIConfigures the Vlan interface and enters interface Interface type-number Verifying Dhcp Client on SVI Configuration Example for Dhcp Client on SVI EFPs and Mstp EFPs and Switchport MAC Addresses Monitoring EVC Command Description Sample Configuration with Switchport to EVC Mapping Configuration Example Line vty 0 4 login Additional References Supported EVC Features OL-23826-09 Understanding How EtherChannels Work Configuring EtherChannelsEtherChannel Feature Overview EtherChannel Configuration Overview Understanding How EtherChannels Are ConfiguredUnderstanding Manual EtherChannel Configuration Understanding Ieee 802.3ad Lacp EtherChannel Configuration Passive mode Active mode Passive modeActive mode Passive mode Router a Router B Result Understanding Load Balancing EtherChannel Configuration Guidelines and RestrictionsUnderstanding Port-Channel Interfaces Configuring Channel Groups Configuring Etherchannels Configuration examples for Lacp system priority Configuring the Lacp System Priority and System ID Lacp rate fast normal End Configuring the Lacp Transmit Rate Verifying the Lacp Transmit Rate Configuring EtherChannel Load BalancingConfiguration Examples Verifying the MTU Size on Port-Channel Enable Configure terminal Interface port-channel numberModifying MTU Size on Port-Channel Restrictions for EVC EtherChannel EVC On Port-Channel Verifying the Configuration Configuring EVC on Port-ChannelRouter# show ethernet service evc id evc-idinterface Router# show ethernet service instance interface Problem Solution Troubleshooting Contents Configuring Ethernet OAM Understanding Ethernet CFM Configuring Ethernet CFMIP SLA Support for CFM 10-2 Ethernet CFM Configuration Restrictions and Guidelines Default Ethernet CFM ConfigurationConfiguring the CFM Domain Configure terminal Enter global configuration mode 10-4 We do not recommend configuring a large number Second, 10 seconds, 1 minute and 10 minutes. The defaultIs 2 to 255 the default is Optional Configure the maximum number of MEPs 10-6 Example for Basic CFM configuration Restrictions Configuring Multi-UNI CFM MEPs in the Same VPNExit 10-7 10-8 Cfm mep domain domain-name mpid identifier 10-9 Alias alias-short-ma-name icc icc-code meg-idNumber ma-number vlan-id vlan-id vpn-id vpn-id 10-10 10-11 10-12 Configuring Ethernet CFM Crosscheck Continuity-check static rmep Configuring Static Remote MEPStatic 10-13 10-14 Configuring a Port MEPService ma-name ma-number vpn-id port 10-15 Configuring Snmp Traps Ethernet echo mpid identifier domain domain-name Configuring IP SLA CFM OperationEthernet jitter mpid identifier domain domain-name 10-16 Allowed by the protocol being used the default is 66 bytes Repeats. The range is from 1 to 604800 seconds the defaultSeconds to keep the operation in memory when it is not Seconds. The default is 0 seconds 10-18 10-19 Configuring CFM over EFP with Cross ConnectShow the configured IP SLA operation 10-20 Configuring CFM over EFP Interface with Cross Connect 10-21 Example for untagged Encapsulation 10-22 Example for single tag Encapsulation 10-23 10-24 Configuring CFM with EVC Default EncapsulationCfm mep domain domain-name mpid mpid-value 10-25 Verifying CFM with EVC Default Encapsulation Example Configuring CFM with EVC Default Encapsulation Configuring Y.1731 Fault ManagementDefault Y.1731 Configuration 10-26 10-27 Configuring ETH-AIS Show ethernet cfm error Configuring ETH-LCKShow ethernet cfm smep interface interface-id Ethernet cfm lck link-status global 10-29 Managing and Displaying Ethernet CFM Information 10-31 10-32 Understanding the Ethernet OAM Protocol Following OAM features are defined by Ieee 802.3ah OAM FeaturesBenefits of Ethernet OAM 10-33 10-34 Link Monitoring 10-35 Setting Up and Configuring Ethernet OAMThis section includes the following topics Restrictions and Guidelines Default Ethernet OAM ConfigurationEnabling Ethernet OAM on an Interface Ethernet oam Ethernet oam max-rate oampdus min-rate seconds Ms mode active passive timeout secondsShow ethernet oam status interface interface-id 10-37 10-38 Configuring Ethernet OAM Link MonitoringEnabling Ethernet OAM Remote Loopback 10-39 Threshold high high-frames none low Ethernet oam link-monitor frame-periodEthernet oam link-monitor frame-seconds 10-40 Ethernet oam link-monitor receive-crc threshold Configuring Ethernet OAM Remote Failure IndicationsNo ethernet link-monitor on 10-41 Dying-gasp link-fault action Configuring Ethernet OAM TemplatesError-disable-interface Ethernet oam remote-failure critical-event 10-43 Low-seconds window milliseconds Threshold high high-seconds none lowEthernet oam link-monitor high threshold action Source-template template-name Show ethernet oam discovery interface interface-id Displaying Ethernet OAM Protocol InformationShow ethernet oam statistics interface interface-id Show ethernet oam summary Verifying Information Oampdu and Fault Statistics Verifying Ethernet OAM ConfigurationVerifying an OAM Session Verifying OAM Discovery Status 10-47 Verifying Link Monitoring Configuration and Status Verifying Status of the Remote OAM Client Understanding E-LMI10-48 Active Default E-LMI Configuration Configuring E-LMIRestrictions 10-49 10-50 Enabling E-LMI Understanding Ethernet Loopback Configuring Ethernet LoopbackDisplaying E-LMI Information 10-51 10-52 Enabling Ethernet Loopback 10-53 10-54 10-55 10-56 Configuring Y.1564 to Generate Ethernet Traffic 10-57 Internal Mode Routerconfig# ip sla Configuring IP SLA for Traffic GenerationSpecify the SLA ID to start the IP SLA session 10-58 10-59 Measurement-type direction -Specifies the statistics 10-60 10-61 Example Two-Way Measurement 10-62 11-1 ITU-T Y.1731 Performance MonitoringPrerequisites for ITU-T Y.1731 Performance Monitoring 11-2 Restrictions for ITU-T Y.1731 Performance MonitoringInformation About ITU-T Y.1731 Performance Monitoring 11-3 Frame Delay and Frame-Delay VariationTwo-way Delay Measurement On-Demand and Concurrent Operations Frame Loss RatioSingle-ended ETH-SLM 11-4 Benefits of ITU-T Y.1731 Performance Monitoring How to Configure ITU-T Y.1731 Performance MonitoringSupported interfaces 11-5 11-6 Configuring Two-Way Delay MeasurementMax-delaymilliseconds Owner owner-id 11-7 Mac-address target-address -SpecifiesMac-address source-address -Specifies 11-8 Boundary ,...,boundary -Lists upper 11-9 Configuring Single-Ended Synthetic Loss MeasurementEnable Configure terminal Asr901-platf-multi-nni-cfm 11-10 11-11 Mac-addresstarget-address-SpecifiesMac-addresssource-address-Specifies Enters IP SLA configuration mode Exits IP SLA Y.1731 loss configuration modeExits IP SLA configuration mode and enters global Owner-id-Specified the name of the Snmp Number-of-measurements -Optional When Threshold-type averageNumber-of-measurements argument. The range is Threshold-type consecutive Scheduling IP SLAs Operations Threshold-type immediate -Optional When aPrerequisites Threshold-value upper-threshold Specifies an IP SLAs operation group number Individual IP SLAs operationRange of operation numbers to be scheduled for a Multi-operation scheduler Router-1#show running interface gigabitethernet0/0 Router# show ip sla configuration11-16 11-17 Example Verifying Ethernet CFM Performance MonitoringRouter# show ethernet cfm pm session summary Router# show ethernet cfm pm session detail Router# show ip sla history interval-statistics Example Verifying History for IP SLAs Operations11-18 11-19 Configuring Direct On-Demand Operation on a Sender MEP 11-20 Configuring Referenced On-Demand Operation on a Sender MEP 11-21 Example On-Demand Operation in Direct Mode Router# ip sla on-demand ethernet slm 2002 duration Example On-Demand Operation in Referenced Mode11-22 Ieee 802.1ag ITU-T Y.1731 MEF Releases, and feature sets, use Cisco MIB Locator found atFollowing URL 11-23 11-24 11-25 Feature Name Releases Feature Information 11-26 Understanding Resilient Ethernet Protocol REP Configuring Resilient Ethernet ProtocolOverview 12-1 REP Open Segments 12-2 No-neighbor Topology 12-3 Fast Convergence Link IntegrityVlan Load Balancing VLB 12-4 Neighbor Offset Numbers in a Segment 12-5 12-6 REP Ports Default REP Configuration Configuring Resilient Ethernet Protocol REPREP Configuration Guidelines 12-7 12-8 12-9 Configuring the REP Administrative Vlan 12-10 Configuring REP Interfaces Service instance instance-id Routerconfig# interface Gigabitethernet0/1Enter the physical Layer 2 interface or port channel ID. Port-channel range is 1 to 12-12 12-13 12-14 Verifies the REP interface configurationFile 12-15 Configuring REP as Dual Edge No-Neighbor Port 12-16 12-17 Rep segment segment-id edge no-neighborPrimary preferred 12-18 Cisco ASR 901 Dual Rep Edge No-Neighbor Topology Example76001 12-19 76002 12-20 Setting up Manual Preemption for Vlan Load Balancing 12-21 Configuring Snmp Traps for REP 12-22 Trap-rate commandMonitoring REP 12-23 Configuring the REP Administrative Vlan Example Configuration Examples for REPConfiguring a REP Interface Example This section contains the following examples Configuring Snmp Traps for REP Example Setting up the Preemption for Vlan Load Balancing ExampleMonitoring the REP Configuration Example 12-25 12-26 Cisco ASR 901 Topology Example 12-27 ASR2 12-28 12-29 12-30 13-1 Configuring MST on EVC Bridge DomainOverview of MST and STP 13-2 Overview of MST on EVC Bridge DomainRestrictions and Guidelines MST0 13-3 13-4 Configuring MST on EVC Bridge Domain 13-5 Specifies the gigabit ethernet interface to configureSlot/port-Specifies the location of the interface 13-6 Configuration Example for MST on EVC Bridge DomainVerification Router# show spanning-tree vlan 13-7 Router# show spanning-tree mst This example shows MST on port channels13-8 13-9 Troubleshooting Tips 13-10 14-1 Configuring Multiprotocol Label Switching 14-2 15-1 Configuring EoMPLSUnderstanding EoMPLS 15-2 Configuring EoMPLS 15-3 EoMPLS Configuration Example Configuration Commands Configuring Pseudowire RedundancySpecifies an interface to configure Configures encapsulation type for the service instance Port Based EoMPLS Configure terminal Enters global configuration mode ExampleShow mpls l2t vc id 15-5 15-6 Routerconfig# xconnect Encapsulation mpls 16-1 Configuring Mpls VPNsUnderstanding Mpls VPNs Configuration Examples for Mpls VPN Configuring Mpls VPNsPE1 Configuration 16-2 16-3 Configuring Mpls VPNs Configuration Examples for Mpls VPN 16-4 16-5 Provider Configuration 16-6 PE2 ConfigurationInterface details 16-7 Ospf and BGP details 16-8 Loop Back details 16-9 16-10 Understanding Mpls OAM Configuring Mpls OAMLSP Ping 17-1 LSP Ping over Pseudowire Configuring Mpls OAMLSP Traceroute 17-2 Using LSP Traceroute for LDP IPv4 FEC Using LSP Ping for LDP IPv4 FECUsing LSP Ping for Pseudowire Ping mpls ipv4 Displaying AToM Vccv capabilities Using LSP Traceroute over PseudowireShow mpls l2transport binding vcid Vc-id-value Changing Default Hashing Algorithm for Ecmp Configuring Routing ProtocolsAsr901-ecmp-hash-config global-type 18-1 18-2 19-1 Configuring BFDUnderstanding BFD Configuring BFD for Ospf BFD Configuration Guidelines and RestrictionsConfiguring BFD for Ospf on One of More Interfaces Enables BFD for Ospf on the interface Creates a configuration for an Ospf process Configuring BFD for Ospf on All InterfacesSpecifies the BFD session parameters Process Configuring BFD for IS-IS Configuring BFD for BGPConfiguring BFD for IS-IS on a Single Interface 19-4 19-5 Configuring BFD for IS-IS for All Interfaces 19-6 Configuring BFD for Static Routes BFD with Ospf on All Interfaces Configuration Examples for BFDBFD with Ospf on Individual Interfaces 19-7 BFD with IS-IS on All Interfaces BFD with BGPBFD with IS-IS on Individual Interfaces 19-8 19-9 BFD with Static Routes 19-10 20-1 Configuring T1/E1 ControllersConfiguring the Card Type 20-2 Configuring E1 ControllersSubslot 20-3 Channel-group channel-no timeslots timeslot-list 64 command 20-4 Configuring T1 Controllers 20-5 Troubleshooting ControllersTroubleshooting E1 Controllers Payload loopback mode of the framer. The framer re-clocks Troubleshooting T1 ControllersReceiver Incoming traffic Local line Path to the receiver path20-7 20-8 21-1 Configuring Pseudowire 21-2 Understanding PseudowiresStructure-Agnostic TDM over Packet Transportation of Service Using Ethernet over Mpls Hot Standby Pseudowire Support for ATM/IMALimitations 21-3 Configuring Pseudowire Classes Configuring PseudowireXconnect ip pw-class pseudowire-class Cem group-number 21-5 Class cem cem-class-name Configuring CEM ClassesCem group-number Cem class cem-class-name Xconnect ip-addressencapsulation mpls 21-7 Enable Configure terminal Interface cemslot/port Configuring a Backup PeerSpecifies the CEM class name Xconnect peer-loopback-ip-addressencapsulation mpls 21-9 Configuring Structure-Agnostic TDM over PacketXconnect ip-addressencapsulation mpls Exit 21-10 30.30.30.2 255.255.255.255 Pseudowire-classpseudowire-class-name Configuring a SAToP Pseudowire with UDP EncapsulationXconnect peer-router-id vcid pseudowire-class name Udp port local-udp-port remote remote-udp-port 21-12 Exits the configuration mode Values for SAToP pseudowires using UDP are fromRemote peer Exits the CEM interface Cem-groupgroup-number timeslots timeslot Enable Configure terminal Controller e1 t1 slot/portExit Interface CEMslot/port Xconnect ip-addressencapsulation mpls Exit End Exits configuration mode Configuring a CESoPSN Pseudowire with UDP EncapsulationDefines a CEM channel Recommend that you build a route from the xconnect address 21-16 Exits pseudowire-class configuration modeUdp port local localudpport remote remoteudpport 21-17 21-18 QoS for CESoPSN over UDP and SAToP over UDP Although the symmetric keyword appears to be optional, you Service instance instance-number21-19 Xconnect ip-addressencapsulation Selects an E1 or T1 controller Configuring L2VPN Pseudowire RedundancyCreates a CEM interface and assigns it a CEM group number 21-20 21-21 Example Pseudowire Redundancy Configuring ATM/IMA Pseudowire Redundancy in PVC ModeBackup peer peer-router-ip-addr vcid Interface interface-name 21-23 Or more virtual circuits VCs Configuring ATM/IMA Pseudowire Redundancy in PVP ModeVpi-ATM network virtual path identifier VPI of the VC to Multiplex on the permanent virtual path 21-25 Configuring ATM/IMA Pseudowire Redundancy in Port ModeTransport over Mpls AToM static pseudowire Peer-router-ip-addr-IP address of the remote peer router Verifying Hot Standby Pseudowire Support for ATM/IMA21-26 Router# show mpls l2transport vc 21-27 TDM Local Switching 21-28 Configuring TDM Local Switching on a T1/E1 Mode 21-29 Configuration Example for Local SwitchingVerifying Local Switching 21-30 ATM/IMA 21-31 Configuration Examples for PseudowireExample TDM over Mpls Configuration-Example 21-32 21-33 Asrb 21-34 Following configuration uses CESoSPN with UDP encapsulationExample CESoPSN with UDP 21-35 Example Ethernet over Mpls 21-36 21-37 Feature Information for Configuring Pseudowire 21-38 22-1 Configuring ClockingRestrictions 22-2 Configuring Network Clock for Cisco ASR 901 Router 22-3 Configuring Network Clock in Global Configuration Mode 22-4 22-5 Example for GPS interface 22-6 Configuring Network Clock in Interface Configuration Mode Synchronization Status Message Understanding SSM and EsmcEthernet Synchronization Messaging Channel Clock Selection Algorithm QL-disabled mode Configuring Esmc in Global Configuration ModeEsmc behavior for Port Channels Esmc behavior for STP Blocked Ports 22-9 Configuring Esmc in Interface Configuration Mode 22-10 Verifying Esmc ConfigurationShow esmc Show network-clock synchronization Managing Synchronization22-11 Router#show esmc interface gigabitEthernet 0/10 22-12 Synchronization Example Verifying the Synchronous Ethernet configuration Configuring Synchronous Ethernet for Copper PortsConfigures synchronous ethernet copper port as slave Configures synchronous ethernet copper port as master 22-14 22-15 Synchronization detail RP command to confirm Troubleshooting TipsShown in this example 22-16 22-17 Troubleshooting Esmc Configuration 22-18 Configuring PTP for the Cisco ASR 901 Router Configuring PTP Ordinary Clock Setting System Time to Current TimeConfiguring Master Ordinary Clock 22-19 22-20 Priority1 priority-value Priority2 priority-value 22-21 Configuring Slave Ordinary Clock 22-22 Clock source source-address 22-23 22-24 Configuring PTP in Unicast Negotiation Mode Configuring PTP in Unicast ModePort Name Port Role Configured with this command Configures Cisco ASR 901 router on unicastPTP Boundary Clock Negotiation mode. The following options can be 22-27 Configuring PTP Boundary ClockClock-port port-namemaster 22-28 Verifying PTP modes Exits clock port configuration modeOrdinary Clock 22-29 Boundary Clock Router# show ptp clock dataset default22-30 Router# show ptp clock dataset time-properties domain Router# show ptp clock runn dom Verifying PTP Configuration on the 1588V2 Slave22-31 Typical configuration on a 1588V2 master is Verifying PTP Configuration on the 1588V2 Master22-32 Router# show ptp clock running domain 22-33 22-34 Configuring a Hybrid Ordinary ClockPTP Hybrid Clock To work in hybrid mode. Enables the hybrid clock such Hybrid-Optional Enables the PTP boundary clockThat the output of the clock is transmitted to the remote Slaves 22-36 22-37 Configuring a Hybrid Boundary Clock 22-38 Router# show running-config section ptpVerifying Hybrid modes Router#show platform ptp channelstatus SSM and PTP Interaction22-39 PTP Redundancy ClockClass MappingTelecom Profiles 22-40 Clock source source-address priority Configuring Telecom Profile in Slave Ordinary ClockEnd 22-41 22-42 22-43 Configuring Telecom Profile in Master Ordinary Clock Timing packets with a PTP slave devices Verifying Telecom profile22-44 Router#show ptp port running detail Router#show ptp clock running domain 22-45 Static Unicast Mode Setting the TimePropertiesASR901 Negotiation Mechanism 22-46 22-47 Configuring ToD on 1588V2 Slave 22-48 23-1 Configuring Ipsla Path DiscoveryCisco IOS IP SLA 23-2 Configuration Parameters 23-3 Example for Ipsla Path Discovery Router#show ip sla mpls-lsp-monitor neighbors This example shows the LPD parameter values configured23-4 23-5 Two-Way Active Measurement Protocol 23-6 Configuring Twamp Enable Configure terminal Ip sla server twamp Configuring the Twamp ServerPort port-number 23-7 Configuration Examples for Twamp Configuring the Twamp ReflectorConfigures the switch as a Twamp responder, and enter Twamp 23-8 Example Configuring the Router as an IP SLA Twamp Reflector Example Configuring the Router as an IP SLA Twamp serverRouterconfig# ip sla server twamp Routerconfig# ip sla responder twamp 23-10 24-1 Configuring QoS 24-2 Understanding QoS 24-3 Default QoS for Traffic from External Ethernet PortsDefault QoS for Traffic from Internal Ports 24-4 Modular QoS CLI 24-5 Input and Output PoliciesInput Policy Maps 24-6 Access Control ListsOutput Policy Maps 24-7 Classification 24-8 Match CommandClass Maps Classification Based on IP Precedence Classification Based on Layer 2 CoSClassification Based on IP Dscp 24-9 This display shows the available classification options Classification ComparisonsPer-hop Decimal Precedence CoS 24-10 24-11 Classification Based on QoS GroupsTraffic Type Per-hop Decimal Precedence CoS 24-12 Classification Based on Vlan IDs 24-13 Table Maps 24-14 Policing 24-15 Individual PolicingGigabitethernet port 24-16 Unconditional Priority Policing Routerconfig# policy-map policy1 Configuration ExampleEgress Policing 24-17 24-18 Routerconfig# policy-map ExampleMarking 24-19 Congestion Management and SchedulingTraffic Shaping Routerconfig# policy-map out-policy-parent Routerconfig# policy-map out-policyRouterconfig-pmap-c#service-policy out-policy 24-20 This is an example of a parent-child configuration Class-Based Weighted Fair QueuingRouterconfig# policy-map parent 24-21 24-22 Routerconfig-pmap-c#bandwidth remaining percent 24-23 Priority Queuing Ingress and Egress QoS Functions Routerconfig# policy-map pmapbckboneIngress QoS Functions 24-24 QoS Limitations Configuring Quality of Service QoSEgress QoS Functions 24-25 24-26 General QoS LimitationsStatistics Limitations Classification Limitations Propagation LimitationsGigabitEthernet Value 24-28 Marking Limitations Precedence Prec-transmit Qos-group Congestion Management LimitationsQueuing Limitations Rate Limiting Limitations Policing with ACL-based QoS RestrictionsShaping Limitations 24-30 QoS for MPLS/IP over Mlppp Improving Feature ScalabilityTcam with QoS QoS for CPU Generated Traffic 24-32 QoS Configuration Guidelines 24-33 Sample QoS Configuration Enter the password Configuring ClassificationCreating a Class Map for Classifying Network Traffic 24-34 24-35 24-36 Attaching the Policy Map to an Interface 24-37 Attaching Policy Map to Cross Connect EVC 24-38 Configuring Marking 24-39 Creating a Class Map for Marking Network Traffic Set cos Traffic Attributes Network Layer ProtocolSet dscp Set qos-group Specify an EVC Configuring Mpls Exp Bit Marking using a PseudowireSpecify an encapsulation type for the EVC 24-41 Configuring Low Latency Queueing LLQ Configuring Congestion ManagementUse the policy-mapcommand to define a policy map 24-42 24-43 Configuring Multiple Priority QueueingPolicy-map interface commands to verify your configuration 24-44 Use the exit command to exit class map configuration Configuring Class-Based Weighted Fair Queuing CbfqUse the exit command to exit the policy map configuration 24-45 Amount of bandwidth Weighted Random Early Detection WredThis step is optional 24-46 No random-detect discard-class-based Configuring ShapingNo random-detect discard-class value 24-47 24-48 Configuring the Secondary-Level Child Policy Map 24-49 Configuring Ethernet Trusted ModeCreating IP Extended ACLs Class-map match-all match-any Using Class Maps to Define a Traffic ClassClass-map-name 24-50 Ip precedence ip-precedence-list Match cos cos-list ip dscp dscp-listQos-group value vlan vlan-list Show class-map Match access-group name access-group-name Creating a Named Access ListPermit source source-wildcard any log Class-mapclass-map-name 24-53 What to do Next Tcam with ACL Router# show ip access-lists tcam124-54 Router# show run int gig 0/1 Router# show access-lists tes456 Verifying Named Access List24-55 Router# show policy-map interface gigabitethernet 0/0 24-56 Configuration Example for Named Access ListRouter# show running-config Class-map match-any test 24-57 24-58 24-59 24-60 24-61 Cisco IP-SLAs QoS Treatment for Performance-Monitoring ProtocolsQoS Treatment for IP-SLA Probes QoS Marking for CPU-Generated Traffic 24-63 QoS Queuing for CPU-Generated Traffic To enter QoS class-map configuration mode Configuring Class-map for Matching Mpls EXP BitsExtending QoS for Mlppp Class in the policy map 24-65 Configuring Class-map for Matching IP Dscp ValueMatch ip dscp dscp-value...dscp-value Dscp-value-The Dscp value used to identify a Dscp value This configuration packets with IP Dscp of value af11 are24-66 Match ip dscp 24-67 Configuring a Policy-map Bandwidth percent bandwidth-percent Exit Class class-defaultExampleclass 24-68 Bits defined by the policy map Value in the type of service ToS byteDscp-value-The Dscp value used to identify a Dscp 24-69 Attaching the Policy-map to Mlppp Interface Enable Configure terminal Interface multilink group-numberIp address address subnet mask 24-70 24-71 24-72 Re-marking IP Dscp Values of CPU Generated Traffic Generated traffic Re-marking Mpls EXP Values of CPU Generated TrafficAre 0 to 24-73 Class and enters QoS class-map configuration mode Configuring a Policy-map to Match on CS5 and EXP4Bandwidth percent bandwidth-percent Set ip dscp dscp-value Class-map-name-The name used for class map As a match criterion Value in the type of service ToS byteCs-value-The Class SelectorCS value Class-map-name-Name of the class for the class map 24-76 Configuring Class-map for Matching Mpls EXP BitsExits QoS policy-map class configuration mode Configuring a Policy-map Configuring Class-map for Matching IP Dscp ValueFollowing example shows a configuration of a policy-map 24-77 24-78 Configuring a Policy-map to Match on CS5 and EXPAttaching the Policy-map to Mlppp Interface 24-79 Verifying Mpls over Mlppp Configuration 24-80 24-81 Troubleshooting Tips 24-82 24-83 Example Tcam troubleshooting related error Entries used 256/256 no free entries available Routerconfig-if-srv#service-policy input policy224-84 Routerconfig-if-srv#no service-policy input policy1 We now have enough free entries to configure policy2Entries used 195/256 after unconfiguring policy1 24-85 24-86 Entries used 220/256 after configuring policy2 24-87 Related Topic Document Title 24-88 Feature Information for Configuring QoS 25-1 Configuring Mlppp Prerequisites Mlppp Optimization FeaturesDistributed Multilink Point-to-Point Protocol Offload Mpls label protocol ldp 25-3 Multiclass MlpppMpls over Mlppp 25-4 Mpls Label imposition LER Mpls Label switching LSR 25-5 Mpls over Mlppp on Core LinksMpls over Mlppp on CE to PE Links Configuring the Card Type, E1 and T1 Controllers Configuring Mlppp BackhaulConfiguring a Multilink Backhaul Interface Creating a Multilink Bundle Example configures an IP address and subnet mask Configuring MrruExample creates a multilink bundle 25-7 25-8 Configuring PFC and AcfcRemote apply, pfc local request, and pfc remote apply 25-9 Requests. The syntax is as follows Configuration requestsAcfc option are not accepted 25-10 25-11 Enabling Multilink and Identifying the Multilink InterfaceKeepalive period retries 25-12 Ppp multilink group group-number 25-13 Mlppp OffloadPpp multilink idle-link Ppp multilink queue depth Configuring Additional Mlppp Settings Configuring Mpls over the Mlppp on a Serial InterfacePpp multilink Ppp multilink group group-number Exit 25-14 25-15 Number, and enters the interface configuration mode Configuring Mpls over Mlppp for Ospf25-16 Interface multilink group-number 25-17 25-18 Configuration Examples for Mpls over Mlppp 25-19 Verifying Mpls over Mlppp ConfigurationRouter# ping mpls ipv4 6.6.6.6/32 Router# show mpls ldp bindings 6.6.6.6 25-20 25-21 25-22 Feature Information for Mlppp Understanding Obfl Onboard Failure LoggingRetrieval of the Obfl message Recording Obfl Messages 26-2 Configuring ObflVerifying Obfl Configuration Clilog summary 26-3 26-4 27-1 Information About Hsrp and Vrrp Text AuthenticationOverview of Hsrp and Vrrp Preemption Configuring Hsrp How to Configure HsrpComplete the following steps to configure Hsrp Standby group-numberauthentication text string 27-4 Example Configuring Hsrp Active Router Configuration Examples for HsrpExample Configuring Hsrp Backup Router 27-5 Example Hsrp Text Authentication How to Configure VrrpConfiguring Vrrp Interface type number Ip ip-address mask 27-7 Vrrp group-numberauthentication text stringVrrp group-numberpriority level Example Configuring a Vrrp Master Router Configuration Examples for VrrpExample Configuring a Vrrp Backup Router 27-8 27-9 Example Vrrp Text Authentication 27-10 27-11 Feature Information for Hsrp and Vrrp 27-12 28-1 Configuring Link Layer Discovery Protocol Configuring Lldp How to Configure LldpRestrictions for Lldp Overview of Lldp 28-3 Example Configuring Hold Time Configuration Example for LldpVerifying Lldp Example Enabling Lldp Globally 28-5 Example Configuring Delay TimeExample Configuring Intervals 28-6 28-7 28-8 Feature Information for Lldp 29-1 Configuring Multihop Bidirectional Forwarding Detection Configuring Multihop BFD Template How to Configure Multihop BFDRestrictions for Multihop BFD Information About Multihop BFD 29-3 Configuring a Multihop BFD Map Configuration Examples for Multihop BFDExample Configuring Multihop BFD Configuration for Router a 29-5 Configuration for Router BInterface Fast Ethernet 0/1 Interface Fast Ethernet 6/0 29-6 29-7 Feature Information for Multihop BFD 29-8 30-1 Bit Error Rate TestingPrerequisites 30-2 How to Configure BertBert Pattern Description Performing Bert on a T1/E1 Line Enable Configure terminal Controller t1 e1 slot/portTerminating Bert on a T1/E1 Controller 30-3 Verifying Bert on a T1/E1 Controller Routerconfig-controller# no bert patternNo bert pattern pattern interval time 30-4 30-5 Following is a sample configuration of the Bert feature 30-6 Feature Information for Bit Error Rate Testing 30-7 30-8 31-1 Microwave ACM Signaling and EEM Integration 31-2 IGP Metric Adjustment QoS Policy AdjustmentBenefits Link Removal 31-4 Configuring Connectivity Fault ManagementBridge-domainbridge-domain-id 31-5 31-6 31-7 Configuring EEP Applet Using CLIs 31-8 Exits applet configuration mode Configuring Event HandlerAn EEM applet is triggered 31-9 31-10 Example Configuring EEP Applet Example Configuring CFMFollowing is a sample configuration of CFM 31-11 Action 104 set n $ringnodes 31-12 31-13 31-14 Action 442 cli command isis metric $dlc 31-15 Example Configuring Event HandlerFollowing is a sample configuration of Event Handler CFM Support for Microwave Adaptive Cisco ASR 901 Router CommandsBandwidth Transport Integration with Microwave ACM 31-16 31-17 31-18 32-1 IPv6 Support on the Cisco ASR 901 Router 32-2 Prerequisites for IPv6 Support on the Cisco ASR 901 Router Overview of IPv6 BenefitsIPv6 Address Formats 32-3 IPv6 Addressing and Discovery Static ConfigurationIPv6 Address Type Preferred Format Compressed Format 32-4 32-5 Stateless AutoconfigurationICMPv6 IPv6 Neighbor Discovery IPv6 Duplicate Address DetectionIPv4 and IPv6 Dual-Stack on an Interface 32-6 Bidirectional Forwarding Detection for IPv6 Routing ProtocolsIS-IS Enhancements for IPv6 OSPFv3 for IPv6 32-8 Configuring IPv6 Addressing and Enabling IPv6 RoutingQoS for IPv6 32-9 Global configuration mode Configuring a Static IPv6 RouteEnables the forwarding of IPv6 unicast datagrams Enables Cisco Express Forwarding CEF globally on Administrative-multicast-distance -Optional Enabling Stateless Auto-ConfigurationIpv6 address autoconfig 32-11 32-12 Ipv6 enable orImplementing IPv6 on Vlan Interfaces 32-13 Implementing IPv6 Addressing on Loopback Interfaces 32-14 Configuring ICMPv6 Rate LimitingEnable Configure terminal Ipv6 icmp error-interval interval 32-15 Configuring IPv6 Duplicate Address DetectionIpv6 nd dad attempts value 32-16 Configuring IPv6 Neighbor Discovery 32-17 Configuring IPv6 and IPv4 Dual-Stack on the Same Vlan Configures an IPv4 address on the interface Configuring OSPFv3 for IPv6Configures IPv6 address on the interface Enables IPv6 address on the interface Enable Configure terminal Router isis area-tag Configuring IS-IS for IPv6Net network-entity-tag Ipv6 router isis area-name 32-20 32-21 Configuring Multiprotocol-BGP for IPv6 32-22 Configuring BFD for IPv6Specifying a Static BFDv6 Neighbor 32-23 Associating an IPv6 Static Route with a BFDv6 NeighborInterface-number -SVI name 32-24 32-25 Configuring BFDv6 and OSPFv3 32-26 Configuring BFDv6 for BGP Exec mode Exits global configuration mode and enters privilegedImplementing QoS for IPv6 Verifying IPv6 Addressing Routing Router# show ipv6 route Verifying a Static IPv6 Route32-28 Verifying IPv6 Implementation on Vlan Interfaces Verifying a Stateless Auto-Configuration32-29 Router# show ipv6 interface loopback Verifying IPv6 Implementation on Loopback Interfaces Verifying ICMPv6 Configuration32-30 Router# show ipv6 interface loopback0 Router# show ipv6 traffic 32-31 32-32 Verifying IPv6 Duplicate Address Detection Configuration Verifying IPv6 and IPv4 Dual-Stack Configuration Verifying IPv6 Neighbor Discovery Configuration32-33 Router# show ipv6 neighbors detail As shown in the example Verifying OSPFv3 for IPv6 Configuration32-34 Router# show ipv6 ospf Verifying Multiprotocol-BGP for IPv6 Configuration Verifying IS-IS for IPv6 Configuration32-35 Router# show isis ipv6 rib BGP 32-36 Router# show bfd neighbors Verifying BFD for IPv6 Configuration32-37 32-38 Verifying BFDv6 and OSPFv3 Configuration 32-39 Verifying BFDv6 for BGP Configuration Example IPv6 Addressing on Vlan Interfaces Example Configuring IPv6 Duplicate Address DetectionExample IPv6 Addressing on Loopback Interfaces Example Customizing ICMPv6 Example Enabling IPv6 Stateless Address Autoconfiguration Example Configuring IPv6 Neighborhood DiscoveryExample Configuring the IPv4 and IPv6 Dual-Stack Example Configuring IPv6 Static Routing Example Configuring OSPFv3 for IPv6 Example Configuring BFD and Static Routing for IPv6Example Configuring BFD and OSPFv3 for IPv6 Following is a sample configuration of OSPFv3 for IPv6 32-43 Example Configuring IS-IS for IPv6Following is a sample configuration of IS-IS for IPv6 32-44 Example Configuring Multiprotocol-BGP for IPv6 32-45 Example Configuring BFD and Multiprotocol-BGP for IPv6 Debug Commands Show Commands Platform Hardware Commands No ipv6 nd suppress-ra command to enableRoute advertisement messages. Also, define a Valid prefix pool for IPv6 32-47 32-48 32-49 32-50 Chapter of the IPv6 Configuration Guide provide 32-51 BGP for IPv6 chapter of the IPv6 Configuration GuideAggregation Services Router Software Configuration Guide 32-52 33-1 Labeled BGP Support Overview of Labeled BGP Support How to Configure Labeled BGP SupportVPN/VRF over RFC 33-2 33-3 Configuration Example for Labeled SupportSend-label option 33-4 Verifying Labeled BGP SupportRouter# show bgp ipv4 unicast labels Labels Vpnv4 all label 33-5Vpnv4 vrf LTE12 label Router# show ip cef vrf LTE12 113.22.12.0 internal 33-6 33-7 RFC-3107Carrying Label Information in BGP-4 33-8 Feature Information for Labeled BGP Support 34-1 Mpls Traffic Engineering Fast Reroute Link Protection 34-2 34-3 BFD-triggered Fast RerouteR2 R3 34-4 Fast RerouteLink Protection Enabling Mpls TE-FRR on an SVI Interface Enables Mpls TE tunnel signaling on the specified interfaceEnabling Mpls TE-FRR for EoMPLS on a Global Interface Mpls traffic-eng tunnels 34-6 Pseudowire-class pw-class-name 34-7 Enabling Mpls TE-FRR for EoMPLS on an InterfaceXconnect peer-ip-address vc-id pw-classpw-class-name 34-8 34-9 Enabling Mpls TE-FRR for IS-IS 34-10 34-11 Configuring Primary One-hop Auto-Tunnels 34-12 34-13 Configuring Backup Auto-Tunnels 34-14 Mpls ldp discovery targeted-hello accept command Enabling BFD Triggered FRR on an SVI Interface Ip rsvp signalling hello bfdMessages from all neighbors 34-15 Enable Configure terminal Ip rsvp signalling hello bfd Configuration modeEnabling BFD Triggered FRR on a Router 34-16 Verification Examples Verifying Mpls TE-FRR Configuration34-17 Router# show mpls traffic-eng tunnels brief Router# show mpls traffic-eng tunnels backup Use the following command to verify the reservation detail34-18 Router# show mpls traffic-eng fast-reroute database Verifying Primary One-hop Auto-Tunnels Verifying Backup Auto-Tunnels34-19 Router# show ip rsvp fast-reroute 34-20 Verifying BFD Triggered FRR Configuration Database 34-21 Router# show ip rsvp hello 34-22 Router# show ip rsvp interface detail 34-23Router# show ip rsvp hello bfd nbr Router# show ip rsvp hello bfd nbr detail Example Configuring Primary One-hop Auto-Tunnels Example Configuring Mpls TE-FRRExample Configuring Backup Auto-Tunnels Example Configuring BFD Triggered FRR 34-25 Mpls TE FRR 34-26 34-27 34-28 35-1 Layer 2 Control Protocol Peering, Forwarding, and Tunneling 35-2 Layer 2 Control Protocol ForwardingLayer 2 Control Protocol Tunneling 35-3 Default Action Configuration Option Configuring Layer 2 PeeringL2protocol peer protocol 35-4 35-5 Configuring Layer 2 Forwarding Routerconfig-if# service instance Ethernet Routerconfig-if# l2proto-forward tagged CdpProtocol-Specifies the protocol to be forwarded 35-6 35-7 Configuring Layer 2 Tunneling 35-8 L2protocol tunnel protocol Bridge-domain bridge-id Verifying Layer 2 Forwarding Verifying Layer 2 PeeringVerifying Layer 2 Tunneling 35-9 Example Configuring Layer 2 Forwarding Example Configuring Layer 2 PeeringFollowing is a sample configuration of layer 2 peering 35-10 35-11 Example Configuring Layer 2 Tunneling 35-12 Router 35-13 35-14 Commands Cisco IOS LAN Switching Commands 35-15 Following command was introduced l2proto-forward 35-16 36-1 Configuring Inverse Muliplexing over ATM 36-2 How to Configure IMA Ima-groupima-group-number Configuring ATM IMA on T1/E1 InterfaceInterface ATMslot-number/IMAima-group-number No ip address Atm bandwidth dynamic No atm ilmi-keepalive 36-4 Configuring ATM IMA over MplsConfiguring the T1/E1 Controller Clock source internal Configuring an ATM IMA InterfaceIma-groupgroup-number 36-5 Disables the Ilmi keepalive parameters Configuring ATM over Mpls Pseudowire InterfaceYou can configure ATM over Mpls in the following modes 36-6 Configuring an N-to-1 VCC Cell Mode Configuring a Port Mode PseudowireConfigures the ATM interface 36-7 Enable Configure terminal Interface ATMslot/IMAgroup-number Configuring an N-to-1 vPC Cell ModeXconnect ip-addressport-numberencapsulation mpls one-to-one 36-8 36-9 ATM AAL5 SDU VCC Transport Sets the encapsulation type to AAL5. AAL5 is the default Verifying IMA ConfigurationsL2transport encapsulation for the VCC mode 36-10 Configuring Constant Bit Rate How to Configure ATM Class of ServiceEnters the global configuration mode 36-11 36-12 Configuring Unspecified Bit RateMode ATM class of service with the rate equal to the bandwidth Configuring Unspecified Bit Rate PlusIMA links and the bandwidth of each link Ubr+ pcr-rate mcr-rate Circuit and specifies the bandwidth Configures the UBR+ QoS class for an ATM permanent virtualPcr-rate-Peak cell rate in Kbps Mcr-rate-Peak cell rate in Mbps Example Configuring a Port Mode Pseudowire Configuration ExamplesExample Creating an IMA Interface 36-15 Example Configuring an N-to-1 VPC Cell Mode Example Configuring an N-to-1 VCC Cell ModeExample Configuring CBR Example Configuring UBR Example Configuring UBR Plus Configuring Marking Mpls Experimental BitsExample Configuring VBR for Real Time Traffic Example Configuring VBR for Non-Real Time Traffic 36-18 Applying the Policy-mapApplying a Policy map on PVC and PVP Sets the PVC encapsulation type to AAL0 Disables the Ilmi trap parametersAttaches a policy map to the input interface 36-19 36-20 Applying a Policy map on ATM IMA Interface Table-maptable-map-name Creating a Table-map36-21 Interface ATM slot/IMA group-number Creating a Policy-map for SVI Interface Default copyMap from from-value to to-value 36-22 36-23 Applying a Service Policy on SVI InterfaceMpls ip Service-policy output policy-map-name 36-24 36-25 36-26 Feature Information for Inverse Multiplexing over ATM 37-1 IPv6 over Mpls 6PE and 6VPE 37-2 37-3 Benefits of 6PE and 6VPEIPv6 on Provider Edge Routers Components of MPLS-based 6VPE Network IPv6 on VPN Provider Edge RoutersIPv6 router on the customer PE equipment, connected to CEs and entry 37-5 Supported Features Configuring 6PE How to Configure IPv6 over Mpls 6PE and 6VPEScalability Numbers Interface Numbers 37-7 Address-family ipv6Exit-address-family 37-8 37-9 Configuring 6VPESetting up IPv6 Connectivity from PE to CE Routers VRF table for an IPv6 address Setting up MP-BGP Peering to the Neighboring PEVrf-name-Optional a specific VRF table for an IPv6 37-10 Enable the exchange of information with a BGP neighbor Places the router in address family configuration mode forAddress prefixes Extended-Specifies that only extended communities will be 37-12 Setting up MPLS/IPv4 Connectivity with LDP 37-13 Creating IPv6 VRFs on PE Routers Sessions that use standard IPv4 address prefixes To configure dual-stack VRF, complete the following steps37-14 Address-family ipv4 37-15 Verifying IPv6 over Mpls 6PE and 6VPE ConfigurationRouter# show bgp vpnv6 unicast all Router# show ipv6 protocols vrf vpe1 Router# show ipv6 cef vrf cisco1 37-16 Router# show mpls forwarding-table vrf vpe1 37-17Router# show ipv6 route vrf Following is a sample configuration of 6PE Example Configuring 6PE37-18 Router# show bgp ipv6 200133/64 37-19 Example Configuring 6VPEFollowing is a sample configuration of 6VPE 37-20 37-21 Feature Information for IPv6 over Mpls 6PE and 6VPE 37-22 38-1 Storm Control 38-2 Configuring Storm Control 38-3 38-4 Verifying Storm Control Errdisable recovery cause Configuring Error Disable Recovery38-5 Storm-control Seconds-Specifies the time to recover from a specified Monitoring Error Disable RecoveryError-disable cause Cause Router# debug platform hardware ether SC Configuration Example for Storm Control38-7 38-8 38-9 Feature Information for Storm Control 38-10 39-1 Remote Loop-Free Alternate Fast Reroute 39-2 Remote LFA-FRR Link Protection 39-3 Benefits of Remote LFA-FRR Pseudowire Redundancy over FRRAvoiding Traffic Drops 39-4 39-5 Conditions for SwitchoverCESoPSN, SAToP, and ATM/IMA 39-6 Configuring Remote LFA-FRR for IS-IS Specifies an IP address for the specified interface Switch Virtual Interface SVI39-7 Ip router isis 39-8 39-9 Configuring Remote LFA-FRR for Ospf Router ospf Enables the Ospf routing protocol and enters the router39-10 39-11 Configuring Remote LFA-FRR for Ethernet and TDM PseudowiresEnables Mpls LDP synchronization on interfaces for an Ospf Accept-Configures the router to respond to requests for Configuring Remote LFA-FRR on a Global InterfaceTargeted hello messages from all neighbors 39-12 39-13 Configuring Remote LFA-FRR on a GigabitEthernet Interface 39-14 Configuring Remote LFA-FRR on an SVI Interface 39-15 Configuring Remote LFA-FRR on IS-IS 39-16 Passive-interfaceinterface-type interface-number 39-17 39-18 Disables sending routing updates on an interface Configuring LFA-FRR for EoMPLSBackup peer peer-ip-address vc-id 39-19 Enables automatic negotiation Removes an IP address or disables IP processing39-20 Negotiation auto 39-21 Configuring LFA-FRR for ATM/IMA 39-22 Backup peer peer-ip-address Configuring LFA-FRR for CESoPSNExit Interface CEM slot/port No ip address 39-23 39-24 39-25 Configuring LFA-FRR for SAToPExit Interface CEM slot/port 39-26 39-27 Verification Examples for Remote LFA-FRR 39-28 Verifying Remote LFA-FRR ConfigurationRouter# show ip ospf fast-reroute remote-lfa tunnels Router# show ip cef 171.1.1.0 internal Router# show isis fast-reroute remote-lfa tunnels 39-29Router# show ip ospf rib Router# show mpls l2transport vc 1 detail 39-30Router# show isis rib 39-31 Router# show mpls l2transport vc 3001 detail 39-32 Verifying Remote LFA-FRR Configuration on ATM/IMA Verifying Remote LFA-FRR Configuration on IS-IS39-33 Router# show mpls l2 vc 90 detail Router# show mpls l2 vc 111 detail Verifying Remote LFA-FRR Configuration on CESoPSN39-34 39-35 Configuration Examples for Remote LFA-FRRVerifying Remote LFA-FRR Configuration on SAToP Example Configuring Remote LFA-FRR for Ospf Example Configuring Remote LFA-FRR for IS-ISExample Configuring Remote LFA-FRR Globally 39-36 Example Configuring EoMPLS Pseudowire Redundancy over FRR Example Configuring Remote LFA-FRR on an SVI InterfaceExample Configuring LFA-FRR on ATM/IMA 39-37 39-38 Example Configuring LFA-FRR on CESoPSNExample Configuring LFA-FRR on SAToP 39-39 39-40 Reroute, 40-1 Digital Optical Monitoring Enters transceiver type configuration mode How to Enable Transceiver MonitoringRouterconfig# transceiver type all 40-2 Examples Show interfaces transceiver commandExample Displaying Transceiver Information 40-3 Router# show interfaces transceiver detail Example Displaying Detailed Transceiver Information40-4 40-5 Example Displaying List of Supported Transceivers 40-6 Example Displaying Threshold Tables 40-7 40-8 Example Displaying Threshold Violations Example When Transceiver Monitoring is Disabled40-9 Router# show interfaces transceiver threshold violations 40-10 Example Displaying SPF Details SCP6G44-C1-BMH 40-11 40-12 SFF-8472 40-13 Feature Information for Digital Optical Monitoring 40-14 41-1 IPv4 Multicast 41-2 PIM SSM for IPv4 Supported ProtocolsSource Specific Multicast Protocol Independent Multicast IGMPv2 IGMPv1IGMPv3 41-4 PIM SSM Mapping Ip igmp static ssm-map commandReverse Path Forwarding Static SSM Mapping Enables multicast routing Configuring IPv4 MulticastEnabling IPv4 Multicast Routing Ip pim sparse-mode Asr901-multicast source Enable Configure terminal Ip pim ssm default Configuring PIM SSMIp pim sparse-mode Ip igmp version 41-7 41-8 Configuring PIM SSM MappingIp igmp ssm-map static access-list source-address 41-9 Verifying IPv4 Multicast RoutingVerifying PIM SSM 41-10 Verifying PIM SSM MappingRouter# show ip mroute Router# show ip igmp ssm-mapping Show ip igmp groups group-address Configuration Examples for IPv4 MulticastShow ip igmp groups interface-type interface-number Show ip igmp groups interface-type detail Example Configuring PIM SSM Mapping Example Configuring PIM SSMExample IPv4 Multicast Routing 41-12 Router# debug ip igmp Example Configuring Rendezvous Point41-13 41-14 41-15 41-16 Feature Information for IPv4 Multicast 41-17 IGMPv2, 41-18 42-1 IPv6 Multicast 42-2 IPv6 Multicast Routing Implementation IPv6 Multicast GroupsMulticast Listener Discovery Protocol for IPv6 42-3 42-4 Protocol Independent Multicast PIM Source Specific Multicast PIM-Sparse ModeSource Specific Multicast Mapping for IPv6 42-5 Enabling IPv6 Multicast Routing Configuring IPv6 MulticastRendezvous Point 42-6 42-7 Enable Configure terminal No ipv6 mfibDisabling IPv6 Multicast Forwarding Disabling MLD Device-Side Processing Disables IPv6 multicast forwarding on the routerNo ipv6 mld router 42-8 No ipv6 mld router Configuring MLD Protocol on an Interface42-9 42-10 Configuring a Rendezvous Point 42-11 Configuring PIM SSM OptionsEnable Configure terminal Ipv6 pim Disables PIM on the specified interface Configuring IPv6 SSM MappingDisabling PIM SSM Multicast on an Interface No ipv6 pim Verifying IPv6 Multicast Configure terminal Ipv6 mld vrf vrf-namessm-map enableNo ipv6 mld vrf vrf-namessm-map query dns 42-13 Router# show ipv6 mld interface gigabitethernet 0/1 42-14Router# show ipv6 mld traffic Router# show ipv6 pim interface Router# show ipv6 pim neighbor count 42-15Router# show ipv6 mld groups summary Router# show ipv6 pim neighbor 42-16Router# show ipv6 mroute Router# show ipv6 pim topology Router# show ipv6 pim topology route-count 42-17Router# show ipv6 pim group-map FF0EE0111 Router# show ipv6 pim range-list Router# show ipv6 pim join-prune statistic 42-18Router# show ipv6 pim traffic 42-19 Following example Router# show ipv6 mfib status 42-20Router# show ipv6 mfib summary Router# show ipv6 mfib interface Example Configuring IPv6 SSM Mapping Configuration Examples for IPv6 MulticastExample Enabling IPv6 Multicast Routing 42-21 42-22 Command Name Description 42-23 42-24 Feature Information for IPv6 MulticastChapter of the IP Multicast PIM Configuration Guide 42-25 Chapter of the IP Multicast LSM Configuration Guide 42-26 43-1 Configuring Switched Port AnalyzerSpan Limitations and Configuration Guidelines 43-2 Understanding SpanFollowing sections describe Span 43-3 Span SessionSource Interface Destination Interface Configuring SpanTraffic Types Span Traffic 43-5 Removing Sources or Destination from a Span Session Enable Configure terminal No monitor session sessionnumber Configuration Examples for SpanClears existing Span configuration for a session Verifying Local Span Rspan Vlan 43-7 43-8 43-9 Feature Information for Switched Port Analyzer 43-10 IN-1 See BSC IN-2 IN-3 IN-4 IN-5 IN-6 See MSC IN-7 IN-8 IN-9 IN-10