Cisco Systems A9014CFD manual Finding Feature Information, 27-1

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C H A P T E R 27

Hot Standby Router Protocol and Virtual Router Redundancy Protocol

This feature module describes the HOT Standby Router Protocol(HSRP) and Virtual Router Redundancy Protocol(VRRP) features. The Hot Standby Router Protocol (HSRP) is a First Hop Redundancy Protocol (FHRP) designed to allow transparent fail-over of the first-hop IP router. HSRP provides high network availability by providing first-hop routing redundancy for IP hosts on Ethernet, Fiber Distributed Data Interface (FDDI), Bridge-Group Virtual Interface (BVI), LAN Emulation (LANE), or Token Ring networks configured with a default gateway IP address. HSRP is used in a group of routers for selecting an active router and a standby router.

The Virtual Router Redundancy Protocol (VRRP) eliminates the single point of failure inherent in the static default routed environment . VRRP is not an election protocol in itself; rather it specifies an election protocol that dynamically assigns responsibility for a virtual router.

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 HSRP and VRRP” section on page 27-11.

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.

Contents

•Information About HSRP and VRRP, page 27-2

•How to Configure HSRP, page 27-3

•Configuration Examples for HSRP, page 27-5

•How to Configure VRRP, page 27-6

•Configuration Examples for VRRP, page 27-8

•Where to Go Next

•Additional References, page 27-9

 

 

Cisco ASR 901 Series Aggregation Services Router Software Configuration Guide

 

 

 

 

 

 

 

OL-23826-09

 

 

27-1

 

 

 

 

 

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Contents Text Part Number OL-23826-09 Americas HeadquartersCopyright 2011-2013, Cisco Systems, Inc Iii N T E N T SRelated Documents Standards MIBs Standards MIBs Searching and Filtering Output of show and more Commands Vii Split-Horizon8-6Viii RestrictionsManually Configuring an IP SLA CFM Probe or Jitter Operation Restrictions Overview Xii Setting up Manual Preemption for Vlan Load BalancingXiii Configuring Mpls VPNs19-6 XivVerifying Local Switching Xvi Verifying the Synchronous Ethernet configurationXvii Cisco IOS IP SLAXviii MarkingXix Technical Assistance Xxi Configuring HsrpXxii Configuring Link Layer Discovery ProtocolXxiii How to Configure Bert32-2 XxivXxv Configuring IPv6 Duplicate Address DetectionTroubleshooting Tips Xxvii BFDXxviii Verifying Layer 2 TunnelingXxix Configuring Unspecified Bit RateXxx Creating IPv6 VRFs on PE RoutersXxxi Technical AssistanceXxxii Finding Feature InformationXxxiii IgmpXxxiv IPv6 Multicast GroupsXxxv Span TrafficXxxvi Document Number Date Change Summary About This GuideDocument Revision History Xxxviii Xxxix OL-23826-09 Xli Xlii Xliii Xliv Xlv Xlvi Xlvii ObjectivesAudience OrganizationXlviii Mpls OAMXlix SLABoldface font ConventionsChapter Description Convention DescriptionRelease Notes To access the related documentation on Cisco.com, go toRelated Documentation Lii Cisco ASR 901 Router Overview This section contains the following topics FeaturesPerformance Features IntroductionManagement Options Manageability FeaturesQuality of Service and Class of Service Features Security FeaturesMonitoring Features Layer 3 FeaturesLayer 3 VPN Services OL-23826-09 Licensing Finding Feature InformationContents License Sl.No Chassis PID License PID Description Feature OverviewLicenses Supported on Cisco ASR 901 Router Following licenses are supportedLicensing Licenses Supported on Cisco ASR 901 Router License Types Feature Based LicenseFeatures Supported License FeaturesPort Number Port Type Chassis PID License Required Port or Interface BehaviorPort Based/Mode License 1588BC LicenseRouter# show ip interface brief Example When Port Based License is not InstalledExample When Port Based License is Installed Port Based LicenseRouter# show interface Ten0/1 10gigUpgrade LicenseExample When 10gigUpgrade License is not Installed Routerconfig# interface gig 0/0Flexi License Example When 10gigUpgrade License is InstalledExample When Flexi License is not Installed Following is a sample output from the show license commandFollowing example shows how to install the 1588BC license Example When Flexi License is InstalledExample When 1588BC License is not Installed Example When 1588BC License is InstalledRouter# license clear 1588BC Use the license clear command to remove the 1588BC licenseRouterconfig-ptp-clk#no ptp clock boundary domain Removing the 1588BC LicenseGenerating the License Installing the LicenseEnable License install Copy tftp flash Show flash License install license-file-nameExample Command PurposeChanging the License Router# copy tftp flash Return Materials Authorization License ProcessRouter# license install ? Example RMA ProcessTo verify the new license, use the show license command Where to Go NextStandard StandardsMIBs RFCsDescription Link Technical AssistanceFeature Name Releases Feature Information Feature Information for LicensingOL-23826-09 Before Starting Your Router First-Time ConfigurationSetup Mode Configuring Global Parameters Using Setup ModeEnter 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 Router# show config Verifying the Hostname and PasswordExit back to global configuration mode Router# configure terminalManaging and Monitoring Network Management Features This section contains the following procedures Network Management Features for the ASREnters global configuration mode Configuring Snmp SupportEnables privileged Exec mode Enter your password if promptedView view-name-Optional Previously defined view. The view Form of this command removes the specified community stringString-Community string is the password to access the Snmp ProtocolTemperature CommandNotification-type -snmp authentication -Enables RFC Envmon voltage shutdown supply fan temperature -WhenSnmp-server host command Command Purpose Interface loopback number Configuring Remote Network ManagementExits global configuration mode Enable Configure terminalCommand or Action Purpose Zero-Touch Deployment Zero-touch Deployment Image DownloadIp dhcp Configuring a Dhcp ServerNetwork ip-address subnet-mask Specifies to exclude IP address of the Dhcp serverCreating a Bootstrap Configuration Configuring a Tftp ServerEnabling a Tftp Server on the Edge Router Configuring the Cisco Configuration EngineExample Configuring a Dhcp Server Configuration ExamplesExample Configuring Snmp Support Example Configuring Remote Network ManagementRelated Topic Document Title Additional ReferencesExample Zero-touch Deployment Related DocumentsMIBs Network Management Features for the ASR Understanding Command Modes Using the Command-Line InterfaceUse the interface Entered. Use a passwordUser Exec Log Exit, or logoutHelp Understanding the Help SystemLine console Ctrl-Z or enter endRouter# show conf Understanding Abbreviated CommandsUnderstanding no and default Forms of Commands Understanding CLI Error MessagesRange is from 0 to Using Command HistoryChanging the Command History Buffer Size Error Message Meaning How to Get HelpEnabling and Disabling Editing Features Using Editing FeaturesRecalling Commands Disabling the Command History FeatureBackspace key Editing Commands through KeystrokesCapability Keystroke1 Purpose Press Ctrl-YPress Ctrl-L or Ctrl-R Editing Command Lines that WrapPress Ctrl-V or Esc Q Return and Space barRouter# 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 Router# verify flashasr901-universalk9-mz.151-2.SNG Save the configuration and reload the routerVerify the Cisco IOS upgrade Verify the Cisco IOS image in the file systemRouter# show version Auto Upgrading the MCUManually Upgrading the Rommon Router# upgrade rom-monitor internal Auto Upgrade of RommonRommon AUTOUPGRADEROMMON=TRUE False Enters enable mode Configuring Gigabit Ethernet InterfacesConfiguring the Interface To configure the GE interface, complete the following stepsGigabitethernet 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 commandRestrictions and Limitations Configuring MAC FLap ControlComplete the following steps to configure MAC Flap control MAC Flap ControlTime-interval Configuring a Combo PortRestrictions Mac-flap-ctrl on per-mac mac-movementPhysical connection Configures the media typeExits interface configuration mode and enters Auto-select-Specifies dynamic selectionRouter# 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 Copy running-config startup-config Service instance number ethernet nameDefault Show ethernet service instanceExample Bridge Domains and Vlan Encapsulation Configuration Examples of Supported FeaturesExample Configuring a Service Instance Example Encapsulation Using a Vlan RangeExample Split Horizon Router config-if-srv#rewrite ingress tag pop 1 symmetricRouter config-if-srv#rewrite ingress pop 1 symmetric Example RewriteExample 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 Example Configuring EVC Default Encapsulation with Xconnect Configuring Other Features on EFPsVerifying EVC Default Encapsulation with Xconnect Configuration Examples for EVC Default EncapsulationMAC Address Forwarding, Learning and Aging on EFPs EFPs and EtherChannelsInterface type slot/port No mac-address-table learning vlan vlan-idRouter# show mac-address-table End Return to privileged Exec modeRouterconfig# no mac-address-table learning vlan Addresses learned on a particular VLAN/BDRouter# show mac-address-table interface port-channel Configuring Ieee 802.1Q Tunneling using EFPs802.1Q Tunneling QinQ Router# show mac-address-table interface 0/91shows the tag structures of the double-tagged packets You can use EFPs to configure 802.1Q tunneling in two ways Configuration ExamplesRouted QinQ Configuration ExampleCisco ASR 901 router supports pop 2 configuration Bridge Domain Routing Example Configuring Bridge-Domain RoutingInterface type-number How to Configure Dhcp Client on SVIConfiguring Dhcp Client on SVI Configures the Vlan interface and enters interfaceVerifying Dhcp Client on SVI Configuration Example for Dhcp Client on SVIEFPs and Mstp EFPs and Switchport MAC AddressesMonitoring EVC Command DescriptionSample 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 Understanding Ieee 802.3ad Lacp EtherChannel Configuration Understanding How EtherChannels Are ConfiguredEtherChannel Configuration Overview Understanding Manual EtherChannel ConfigurationRouter a Router B Result Passive modePassive mode Active mode Active mode Passive modeUnderstanding Load Balancing EtherChannel Configuration Guidelines and RestrictionsUnderstanding Port-Channel Interfaces Configuring Channel Groups Configuring EtherchannelsConfiguration examples for Lacp system priority Configuring the Lacp System Priority and System IDLacp rate fast normal End Configuring the Lacp Transmit RateVerifying 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-ChannelRouter# show ethernet service instance interface Configuring EVC on Port-ChannelVerifying the Configuration Router# show ethernet service evc id evc-idinterfaceProblem Solution TroubleshootingContents Configuring Ethernet OAM10-2 Configuring Ethernet CFMUnderstanding Ethernet CFM IP SLA Support for CFMConfigure terminal Enter global configuration mode Default Ethernet CFM ConfigurationEthernet CFM Configuration Restrictions and Guidelines Configuring the CFM Domain10-4 Optional Configure the maximum number of MEPs Second, 10 seconds, 1 minute and 10 minutes. The defaultWe do not recommend configuring a large number Is 2 to 255 the default is10-6 Example for Basic CFM configuration10-7 Configuring Multi-UNI CFM MEPs in the Same VPNRestrictions Exit10-8 Cfm mep domain domain-name mpid identifier10-9 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 Crosscheck10-13 Configuring Static Remote MEPContinuity-check static rmep Static10-14 Configuring a Port MEPService ma-name ma-number vpn-id port 10-15 Configuring Snmp Traps10-16 Configuring IP SLA CFM OperationEthernet echo mpid identifier domain domain-name Ethernet jitter mpid identifier domain domain-nameSeconds. The default is 0 seconds Repeats. The range is from 1 to 604800 seconds the defaultAllowed by the protocol being used the default is 66 bytes Seconds to keep the operation in memory when it is not10-18 10-19 Configuring CFM over EFP with Cross ConnectShow the configured IP SLA operation 10-20 Configuring CFM over EFP Interface with Cross Connect10-21 Example for untagged Encapsulation10-22 Example for single tag Encapsulation10-23 10-24 Configuring CFM with EVC Default EncapsulationCfm mep domain domain-name mpid mpid-value 10-25 Verifying CFM with EVC Default Encapsulation10-26 Configuring Y.1731 Fault ManagementExample Configuring CFM with EVC Default Encapsulation Default Y.1731 Configuration10-27 Configuring ETH-AISEthernet cfm lck link-status global Configuring ETH-LCKShow ethernet cfm error Show ethernet cfm smep interface interface-id10-29 Managing and Displaying Ethernet CFM Information 10-31 10-32 Understanding the Ethernet OAM Protocol10-33 OAM FeaturesFollowing OAM features are defined by Ieee 802.3ah Benefits of Ethernet OAM10-34 Link Monitoring10-35 Setting Up and Configuring Ethernet OAMThis section includes the following topics Ethernet oam Default Ethernet OAM ConfigurationRestrictions and Guidelines Enabling Ethernet OAM on an Interface10-37 Ms mode active passive timeout secondsEthernet oam max-rate oampdus min-rate seconds Show ethernet oam status interface interface-id10-38 Configuring Ethernet OAM Link MonitoringEnabling Ethernet OAM Remote Loopback 10-39 10-40 Ethernet oam link-monitor frame-periodThreshold high high-frames none low Ethernet oam link-monitor frame-seconds10-41 Configuring Ethernet OAM Remote Failure IndicationsEthernet oam link-monitor receive-crc threshold No ethernet link-monitor onEthernet oam remote-failure critical-event Configuring Ethernet OAM TemplatesDying-gasp link-fault action Error-disable-interface10-43 Source-template template-name Threshold high high-seconds none lowLow-seconds window milliseconds Ethernet oam link-monitor high threshold actionShow ethernet oam summary Displaying Ethernet OAM Protocol InformationShow ethernet oam discovery interface interface-id Show ethernet oam statistics interface interface-idVerifying OAM Discovery Status Verifying Ethernet OAM ConfigurationVerifying Information Oampdu and Fault Statistics Verifying an OAM Session10-47 Verifying Link Monitoring Configuration and StatusActive Understanding E-LMIVerifying Status of the Remote OAM Client 10-4810-49 Configuring E-LMIDefault E-LMI Configuration Restrictions10-50 Enabling E-LMI10-51 Configuring Ethernet LoopbackUnderstanding Ethernet Loopback Displaying E-LMI Information10-52 Enabling Ethernet Loopback10-53 10-54 10-55 10-56 Configuring Y.1564 to Generate Ethernet Traffic10-57 Internal Mode10-58 Configuring IP SLA for Traffic GenerationRouterconfig# ip sla Specify the SLA ID to start the IP SLA session10-59 Measurement-type direction -Specifies the statistics10-60 10-61 Example Two-Way Measurement10-62 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 11-4 Frame Loss RatioOn-Demand and Concurrent Operations Single-ended ETH-SLM11-5 How to Configure ITU-T Y.1731 Performance MonitoringBenefits of ITU-T Y.1731 Performance Monitoring Supported interfaces11-6 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 upper11-9 Configuring Single-Ended Synthetic Loss MeasurementEnable Configure terminal Asr901-platf-multi-nni-cfm 11-10 11-11 Mac-addresstarget-address-SpecifiesMac-addresssource-address-Specifies Owner-id-Specified the name of the Snmp Exits IP SLA Y.1731 loss configuration modeEnters IP SLA configuration mode Exits IP SLA configuration mode and enters globalThreshold-type consecutive Threshold-type averageNumber-of-measurements -Optional When Number-of-measurements argument. The range isThreshold-value upper-threshold Threshold-type immediate -Optional When aScheduling IP SLAs Operations PrerequisitesMulti-operation scheduler Individual IP SLAs operationSpecifies an IP SLAs operation group number Range of operation numbers to be scheduled for aRouter-1#show running interface gigabitethernet0/0 Router# show ip sla configuration11-16 Router# show ethernet cfm pm session detail Example Verifying Ethernet CFM Performance Monitoring11-17 Router# show ethernet cfm pm session summaryRouter# show ip sla history interval-statistics Example Verifying History for IP SLAs Operations11-18 11-19 Configuring Direct On-Demand Operation on a Sender MEP11-20 Configuring Referenced On-Demand Operation on a Sender MEP11-21 Example On-Demand Operation in Direct ModeRouter# ip sla on-demand ethernet slm 2002 duration Example On-Demand Operation in Referenced Mode11-22 11-23 Releases, and feature sets, use Cisco MIB Locator found atIeee 802.1ag ITU-T Y.1731 MEF Following URL11-24 11-25 Feature Name Releases Feature Information11-26 12-1 Configuring Resilient Ethernet ProtocolUnderstanding Resilient Ethernet Protocol REP OverviewREP Open Segments 12-2No-neighbor Topology 12-312-4 Link IntegrityFast Convergence Vlan Load Balancing VLBNeighbor Offset Numbers in a Segment 12-512-6 REP Ports12-7 Configuring Resilient Ethernet Protocol REPDefault REP Configuration REP Configuration Guidelines12-8 12-9 Configuring the REP Administrative Vlan12-10 Configuring REP InterfacesPort-channel range is 1 to Routerconfig# interface Gigabitethernet0/1Service instance instance-id Enter the physical Layer 2 interface or port channel ID.12-12 12-13 12-14 Verifies the REP interface configurationFile 12-15 Configuring REP as Dual Edge No-Neighbor Port12-16 12-17 Rep segment segment-id edge no-neighborPrimary preferred 12-18 Cisco ASR 901 Dual Rep Edge No-Neighbor Topology Example76001 12-19 7600212-20 Setting up Manual Preemption for Vlan Load Balancing12-21 Configuring Snmp Traps for REP12-22 Trap-rate commandMonitoring REP 12-23 This section contains the following examples Configuration Examples for REPConfiguring the REP Administrative Vlan Example Configuring a REP Interface Example12-25 Setting up the Preemption for Vlan Load Balancing ExampleConfiguring Snmp Traps for REP Example Monitoring the REP Configuration Example12-26 Cisco ASR 901 Topology Example12-27 ASR212-28 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 13-313-4 Configuring MST on EVC Bridge Domain13-5 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 13-7Router# show spanning-tree mst This example shows MST on port channels13-8 13-9 Troubleshooting Tips13-10 14-1 Configuring Multiprotocol Label Switching14-2 15-1 Configuring EoMPLSUnderstanding EoMPLS 15-2 Configuring EoMPLS15-3 EoMPLS Configuration ExampleConfigures encapsulation type for the service instance Configuring Pseudowire RedundancyConfiguration Commands Specifies an interface to configure15-5 Configure terminal Enters global configuration mode ExamplePort Based EoMPLS Show mpls l2t vc id15-6 Routerconfig# xconnect Encapsulation mpls16-1 Configuring Mpls VPNsUnderstanding Mpls VPNs 16-2 Configuring Mpls VPNsConfiguration Examples for Mpls VPN PE1 Configuration16-3 Configuring Mpls VPNs Configuration Examples for Mpls VPN16-4 16-5 Provider Configuration16-6 PE2 ConfigurationInterface details 16-7 Ospf and BGP details16-8 Loop Back details16-9 16-10 17-1 Configuring Mpls OAMUnderstanding Mpls OAM LSP Ping17-2 Configuring Mpls OAMLSP Ping over Pseudowire LSP TraceroutePing mpls ipv4 Using LSP Ping for LDP IPv4 FECUsing LSP Traceroute for LDP IPv4 FEC Using LSP Ping for PseudowireVc-id-value Using LSP Traceroute over PseudowireDisplaying AToM Vccv capabilities Show mpls l2transport binding vcid18-1 Configuring Routing ProtocolsChanging Default Hashing Algorithm for Ecmp Asr901-ecmp-hash-config global-type18-2 19-1 Configuring BFDUnderstanding BFD Enables BFD for Ospf on the interface BFD Configuration Guidelines and RestrictionsConfiguring BFD for Ospf Configuring BFD for Ospf on One of More InterfacesProcess Configuring BFD for Ospf on All InterfacesCreates a configuration for an Ospf process Specifies the BFD session parameters19-4 Configuring BFD for BGPConfiguring BFD for IS-IS Configuring BFD for IS-IS on a Single Interface19-5 Configuring BFD for IS-IS for All Interfaces19-6 Configuring BFD for Static Routes19-7 Configuration Examples for BFDBFD with Ospf on All Interfaces BFD with Ospf on Individual Interfaces19-8 BFD with BGPBFD with IS-IS on All Interfaces BFD with IS-IS on Individual Interfaces19-9 BFD with Static Routes19-10 20-1 Configuring T1/E1 ControllersConfiguring the Card Type 20-2 Configuring E1 ControllersSubslot 20-3 Channel-group channel-no timeslots timeslot-list 64 command20-4 Configuring T1 Controllers20-5 Troubleshooting ControllersTroubleshooting E1 Controllers Incoming traffic Troubleshooting T1 ControllersPayload loopback mode of the framer. The framer re-clocks ReceiverLocal line Path to the receiver path20-7 20-8 21-1 Configuring Pseudowire21-2 Understanding PseudowiresStructure-Agnostic TDM over Packet 21-3 Hot Standby Pseudowire Support for ATM/IMATransportation of Service Using Ethernet over Mpls LimitationsCem group-number Configuring PseudowireConfiguring Pseudowire Classes Xconnect ip pw-class pseudowire-class21-5 Xconnect ip-addressencapsulation mpls Configuring CEM ClassesClass cem cem-class-name Cem group-number Cem class cem-class-name21-7 Xconnect peer-loopback-ip-addressencapsulation mpls Configuring a Backup PeerEnable Configure terminal Interface cemslot/port Specifies the CEM class name21-9 Configuring Structure-Agnostic TDM over PacketXconnect ip-addressencapsulation mpls Exit 21-10 30.30.30.2 255.255.255.255Udp port local-udp-port remote remote-udp-port Configuring a SAToP Pseudowire with UDP EncapsulationPseudowire-classpseudowire-class-name Xconnect peer-router-id vcid pseudowire-class name21-12 Exits the CEM interface Values for SAToP pseudowires using UDP are fromExits the configuration mode Remote peerXconnect ip-addressencapsulation mpls Exit End Enable Configure terminal Controller e1 t1 slot/portCem-groupgroup-number timeslots timeslot Exit Interface CEMslot/portRecommend that you build a route from the xconnect address Configuring a CESoPSN Pseudowire with UDP EncapsulationExits configuration mode Defines a CEM channel21-16 Exits pseudowire-class configuration modeUdp port local localudpport remote remoteudpport 21-17 21-18 QoS for CESoPSN over UDP and SAToP over UDPXconnect ip-addressencapsulation Service instance instance-numberAlthough the symmetric keyword appears to be optional, you 21-1921-20 Configuring L2VPN Pseudowire RedundancySelects an E1 or T1 controller Creates a CEM interface and assigns it a CEM group number21-21 Interface interface-name Configuring ATM/IMA Pseudowire Redundancy in PVC ModeExample Pseudowire Redundancy Backup peer peer-router-ip-addr vcid21-23 Multiplex on the permanent virtual path Configuring ATM/IMA Pseudowire Redundancy in PVP ModeOr more virtual circuits VCs Vpi-ATM network virtual path identifier VPI of the VC to21-25 Configuring ATM/IMA Pseudowire Redundancy in Port ModeTransport over Mpls AToM static pseudowire Router# show mpls l2transport vc Verifying Hot Standby Pseudowire Support for ATM/IMAPeer-router-ip-addr-IP address of the remote peer router 21-2621-27 TDM Local Switching21-28 Configuring TDM Local Switching on a T1/E1 Mode21-29 Configuration Example for Local SwitchingVerifying Local Switching 21-30 ATM/IMA21-31 Configuration Examples for PseudowireExample TDM over Mpls Configuration-Example 21-32 21-33 Asrb21-34 Following configuration uses CESoSPN with UDP encapsulationExample CESoPSN with UDP 21-35 Example Ethernet over Mpls21-36 21-37 Feature Information for Configuring Pseudowire21-38 22-1 Configuring ClockingRestrictions 22-2 Configuring Network Clock for Cisco ASR 901 Router22-3 Configuring Network Clock in Global Configuration Mode22-4 22-5 Example for GPS interface22-6 Configuring Network Clock in Interface Configuration ModeClock Selection Algorithm Understanding SSM and EsmcSynchronization Status Message Ethernet Synchronization Messaging ChannelEsmc behavior for STP Blocked Ports Configuring Esmc in Global Configuration ModeQL-disabled mode Esmc behavior for Port Channels22-9 Configuring Esmc in Interface Configuration Mode22-10 Verifying Esmc ConfigurationShow esmc Router#show esmc interface gigabitEthernet 0/10 Managing SynchronizationShow network-clock synchronization 22-1122-12 Synchronization ExampleConfigures synchronous ethernet copper port as master Configuring Synchronous Ethernet for Copper PortsVerifying the Synchronous Ethernet configuration Configures synchronous ethernet copper port as slave22-14 22-15 22-16 Troubleshooting TipsSynchronization detail RP command to confirm Shown in this example22-17 Troubleshooting Esmc Configuration22-18 Configuring PTP for the Cisco ASR 901 Router22-19 Setting System Time to Current TimeConfiguring PTP Ordinary Clock Configuring Master Ordinary Clock22-20 Priority1 priority-value Priority2 priority-value22-21 Configuring Slave Ordinary Clock22-22 Clock source source-address22-23 22-24 Port Role Configuring PTP in Unicast ModeConfiguring PTP in Unicast Negotiation Mode Port NameNegotiation mode. The following options can be Configures Cisco ASR 901 router on unicastConfigured with this command PTP Boundary Clock22-27 Configuring PTP Boundary ClockClock-port port-namemaster 22-28 22-29 Exits clock port configuration modeVerifying PTP modes Ordinary ClockRouter# show ptp clock dataset time-properties domain Router# show ptp clock dataset defaultBoundary Clock 22-30Router# show ptp clock runn dom Verifying PTP Configuration on the 1588V2 Slave22-31 Router# show ptp clock running domain Verifying PTP Configuration on the 1588V2 MasterTypical configuration on a 1588V2 master is 22-3222-33 22-34 Configuring a Hybrid Ordinary ClockPTP Hybrid Clock Slaves Hybrid-Optional Enables the PTP boundary clockTo work in hybrid mode. Enables the hybrid clock such That the output of the clock is transmitted to the remote22-36 22-37 Configuring a Hybrid Boundary Clock22-38 Router# show running-config section ptpVerifying Hybrid modes Router#show platform ptp channelstatus SSM and PTP Interaction22-39 22-40 ClockClass MappingPTP Redundancy Telecom Profiles22-41 Configuring Telecom Profile in Slave Ordinary ClockClock source source-address priority End22-42 22-43 Configuring Telecom Profile in Master Ordinary ClockRouter#show ptp port running detail Verifying Telecom profileTiming packets with a PTP slave devices 22-44Router#show ptp clock running domain 22-4522-46 Setting the TimePropertiesStatic Unicast Mode ASR901 Negotiation Mechanism22-47 Configuring ToD on 1588V2 Slave22-48 23-1 Configuring Ipsla Path DiscoveryCisco IOS IP SLA 23-2 Configuration Parameters23-3 Example for Ipsla Path DiscoveryRouter#show ip sla mpls-lsp-monitor neighbors This example shows the LPD parameter values configured23-4 23-5 Two-Way Active Measurement Protocol23-6 Configuring Twamp23-7 Configuring the Twamp ServerEnable Configure terminal Ip sla server twamp Port port-number23-8 Configuring the Twamp ReflectorConfiguration Examples for Twamp Configures the switch as a Twamp responder, and enter TwampRouterconfig# ip sla responder twamp Example Configuring the Router as an IP SLA Twamp serverExample Configuring the Router as an IP SLA Twamp Reflector Routerconfig# ip sla server twamp23-10 24-1 Configuring QoS24-2 Understanding QoS24-3 Default QoS for Traffic from External Ethernet PortsDefault QoS for Traffic from Internal Ports 24-4 Modular QoS CLI24-5 Input and Output PoliciesInput Policy Maps 24-6 Access Control ListsOutput Policy Maps 24-7 Classification24-8 Match CommandClass Maps 24-9 Classification Based on Layer 2 CoSClassification Based on IP Precedence Classification Based on IP Dscp24-10 Classification ComparisonsThis display shows the available classification options Per-hop Decimal Precedence CoS24-11 Classification Based on QoS GroupsTraffic Type Per-hop Decimal Precedence CoS 24-12 Classification Based on Vlan IDs24-13 Table Maps24-14 Policing24-15 Individual PolicingGigabitethernet port 24-16 Unconditional Priority Policing24-17 Configuration ExampleRouterconfig# policy-map policy1 Egress Policing24-18 Routerconfig# policy-map ExampleMarking 24-19 Congestion Management and SchedulingTraffic Shaping 24-20 Routerconfig# policy-map out-policyRouterconfig# policy-map out-policy-parent Routerconfig-pmap-c#service-policy out-policy24-21 Class-Based Weighted Fair QueuingThis is an example of a parent-child configuration Routerconfig# policy-map parent24-22 Routerconfig-pmap-c#bandwidth remaining percent24-23 Priority Queuing24-24 Routerconfig# policy-map pmapbckboneIngress and Egress QoS Functions Ingress QoS Functions24-25 Configuring Quality of Service QoSQoS Limitations Egress QoS Functions24-26 General QoS LimitationsStatistics Limitations Value Propagation LimitationsClassification Limitations GigabitEthernet24-28 Marking LimitationsRate Limiting Limitations Congestion Management LimitationsPrecedence Prec-transmit Qos-group Queuing Limitations24-30 ACL-based QoS RestrictionsPolicing with Shaping LimitationsQoS for CPU Generated Traffic Improving Feature ScalabilityQoS for MPLS/IP over Mlppp Tcam with QoS24-32 QoS Configuration Guidelines24-33 Sample QoS Configuration24-34 Configuring ClassificationEnter the password Creating a Class Map for Classifying Network Traffic24-35 24-36 Attaching the Policy Map to an Interface24-37 Attaching Policy Map to Cross Connect EVC24-38 Configuring Marking24-39 Creating a Class Map for Marking Network TrafficSet qos-group Traffic Attributes Network Layer ProtocolSet cos Set dscp24-41 Configuring Mpls Exp Bit Marking using a PseudowireSpecify an EVC Specify an encapsulation type for the EVC24-42 Configuring Congestion ManagementConfiguring Low Latency Queueing LLQ Use the policy-mapcommand to define a policy map24-43 Configuring Multiple Priority QueueingPolicy-map interface commands to verify your configuration 24-44 24-45 Configuring Class-Based Weighted Fair Queuing CbfqUse the exit command to exit class map configuration Use the exit command to exit the policy map configuration24-46 Weighted Random Early Detection WredAmount of bandwidth This step is optional24-47 Configuring ShapingNo random-detect discard-class-based No random-detect discard-class value24-48 Configuring the Secondary-Level Child Policy Map24-49 Configuring Ethernet Trusted ModeCreating IP Extended ACLs 24-50 Using Class Maps to Define a Traffic ClassClass-map match-all match-any Class-map-nameShow class-map Match cos cos-list ip dscp dscp-listIp precedence ip-precedence-list Qos-group value vlan vlan-listClass-mapclass-map-name Creating a Named Access ListMatch access-group name access-group-name Permit source source-wildcard any log24-53 What to do NextRouter# show run int gig 0/1 Router# show ip access-lists tcam1Tcam with ACL 24-54Router# show policy-map interface gigabitethernet 0/0 Verifying Named Access ListRouter# show access-lists tes456 24-5524-56 Configuration Example for Named Access ListRouter# show running-config Class-map match-any test 24-5724-58 24-59 24-60 24-61 QoS Marking for CPU-Generated Traffic QoS Treatment for Performance-Monitoring ProtocolsCisco IP-SLAs QoS Treatment for IP-SLA Probes24-63 QoS Queuing for CPU-Generated TrafficClass in the policy map Configuring Class-map for Matching Mpls EXP BitsTo enter QoS class-map configuration mode Extending QoS for Mlppp24-65 Configuring Class-map for Matching IP Dscp ValueMatch ip dscp dscp-value...dscp-value Match ip dscp This configuration packets with IP Dscp of value af11 areDscp-value-The Dscp value used to identify a Dscp value 24-6624-67 Configuring a Policy-map24-68 Class class-defaultBandwidth percent bandwidth-percent Exit Exampleclass24-69 Value in the type of service ToS byteBits defined by the policy map Dscp-value-The Dscp value used to identify a Dscp24-70 Enable Configure terminal Interface multilink group-numberAttaching the Policy-map to Mlppp Interface Ip address address subnet mask24-71 24-72 Re-marking IP Dscp Values of CPU Generated Traffic24-73 Re-marking Mpls EXP Values of CPU Generated TrafficGenerated traffic Are 0 toClass-map-name-The name used for class map Configuring a Policy-map to Match on CS5 and EXP4Class and enters QoS class-map configuration mode Bandwidth percent bandwidth-percent Set ip dscp dscp-valueClass-map-name-Name of the class for the class map Value in the type of service ToS byteAs a match criterion Cs-value-The Class SelectorCS value24-76 Configuring Class-map for Matching Mpls EXP BitsExits QoS policy-map class configuration mode 24-77 Configuring Class-map for Matching IP Dscp ValueConfiguring a Policy-map Following example shows a configuration of a policy-map24-78 Configuring a Policy-map to Match on CS5 and EXPAttaching the Policy-map to Mlppp Interface 24-79 Verifying Mpls over Mlppp Configuration24-80 24-81 Troubleshooting Tips24-82 24-83 Example Tcam troubleshooting related errorEntries used 256/256 no free entries available Routerconfig-if-srv#service-policy input policy224-84 24-85 We now have enough free entries to configure policy2Routerconfig-if-srv#no service-policy input policy1 Entries used 195/256 after unconfiguring policy124-86 Entries used 220/256 after configuring policy224-87 Related Topic Document Title24-88 Feature Information for Configuring QoS25-1 Configuring MlpppMpls label protocol ldp Mlppp Optimization FeaturesPrerequisites Distributed Multilink Point-to-Point Protocol Offload25-3 Multiclass MlpppMpls over Mlppp 25-4 Mpls Label imposition LER Mpls Label switching LSR25-5 Mpls over Mlppp on Core LinksMpls over Mlppp on CE to PE Links Creating a Multilink Bundle Configuring Mlppp BackhaulConfiguring the Card Type, E1 and T1 Controllers Configuring a Multilink Backhaul Interface25-7 Configuring MrruExample configures an IP address and subnet mask Example creates a multilink bundle25-8 Configuring PFC and AcfcRemote apply, pfc local request, and pfc remote apply 25-9 25-10 Configuration requestsRequests. The syntax is as follows Acfc option are not accepted25-11 Enabling Multilink and Identifying the Multilink InterfaceKeepalive period retries 25-12 Ppp multilink group group-number25-13 Mlppp OffloadPpp multilink idle-link Ppp multilink queue depth 25-14 Configuring Mpls over the Mlppp on a Serial InterfaceConfiguring Additional Mlppp Settings Ppp multilink Ppp multilink group group-number Exit25-15 Interface multilink group-number Configuring Mpls over Mlppp for OspfNumber, and enters the interface configuration mode 25-1625-17 25-18 Configuration Examples for Mpls over MlpppRouter# show mpls ldp bindings 6.6.6.6 Verifying Mpls over Mlppp Configuration25-19 Router# ping mpls ipv4 6.6.6.6/3225-20 25-21 25-22 Feature Information for MlpppRecording Obfl Messages Onboard Failure LoggingUnderstanding Obfl Retrieval of the Obfl message26-2 Configuring ObflVerifying Obfl Configuration Clilog summary 26-326-4 27-1 Preemption Text AuthenticationInformation About Hsrp and Vrrp Overview of Hsrp and VrrpStandby group-numberauthentication text string How to Configure HsrpConfiguring Hsrp Complete the following steps to configure Hsrp27-4 27-5 Configuration Examples for HsrpExample Configuring Hsrp Active Router Example Configuring Hsrp Backup RouterInterface type number Ip ip-address mask How to Configure VrrpExample Hsrp Text Authentication Configuring Vrrp27-7 Vrrp group-numberauthentication text stringVrrp group-numberpriority level 27-8 Configuration Examples for VrrpExample Configuring a Vrrp Master Router Example Configuring a Vrrp Backup Router27-9 Example Vrrp Text Authentication27-10 27-11 Feature Information for Hsrp and Vrrp27-12 28-1 Configuring Link Layer Discovery ProtocolOverview of Lldp How to Configure LldpConfiguring Lldp Restrictions for Lldp28-3 Example Enabling Lldp Globally Configuration Example for LldpExample Configuring Hold Time Verifying Lldp28-5 Example Configuring Delay TimeExample Configuring Intervals 28-6 28-7 28-8 Feature Information for Lldp29-1 Configuring Multihop Bidirectional Forwarding DetectionInformation About Multihop BFD How to Configure Multihop BFDConfiguring Multihop BFD Template Restrictions for Multihop BFD29-3 Configuration for Router a Configuration Examples for Multihop BFDConfiguring a Multihop BFD Map Example Configuring Multihop BFDInterface Fast Ethernet 6/0 Configuration for Router B29-5 Interface Fast Ethernet 0/129-6 29-7 Feature Information for Multihop BFD29-8 30-1 Bit Error Rate TestingPrerequisites 30-2 How to Configure BertBert Pattern Description 30-3 Enable Configure terminal Controller t1 e1 slot/portPerforming Bert on a T1/E1 Line Terminating Bert on a T1/E1 Controller30-4 Routerconfig-controller# no bert patternVerifying Bert on a T1/E1 Controller No bert pattern pattern interval time30-5 Following is a sample configuration of the Bert feature30-6 Feature Information for Bit Error Rate Testing30-7 30-8 31-1 Microwave ACM Signaling and EEM Integration31-2 Link Removal QoS Policy AdjustmentIGP Metric Adjustment Benefits31-4 Configuring Connectivity Fault ManagementBridge-domainbridge-domain-id 31-5 31-6 31-7 Configuring EEP Applet Using CLIs31-8 31-9 Configuring Event HandlerExits applet configuration mode An EEM applet is triggered31-10 31-11 Example Configuring CFMExample Configuring EEP Applet Following is a sample configuration of CFMAction 104 set n $ringnodes 31-1231-13 31-14 Action 442 cli command isis metric $dlc31-15 Example Configuring Event HandlerFollowing is a sample configuration of Event Handler 31-16 Cisco ASR 901 Router CommandsCFM Support for Microwave Adaptive Bandwidth Transport Integration with Microwave ACM31-17 31-18 32-1 IPv6 Support on the Cisco ASR 901 Router32-2 Prerequisites for IPv6 Support on the Cisco ASR 901 Router32-3 BenefitsOverview of IPv6 IPv6 Address Formats32-4 Static ConfigurationIPv6 Addressing and Discovery IPv6 Address Type Preferred Format Compressed Format32-5 Stateless AutoconfigurationICMPv6 32-6 IPv6 Duplicate Address DetectionIPv6 Neighbor Discovery IPv4 and IPv6 Dual-Stack on an InterfaceOSPFv3 for IPv6 Routing ProtocolsBidirectional Forwarding Detection for IPv6 IS-IS Enhancements for IPv632-8 Configuring IPv6 Addressing and Enabling IPv6 RoutingQoS for IPv6 32-9 Enables Cisco Express Forwarding CEF globally on Configuring a Static IPv6 RouteGlobal configuration mode Enables the forwarding of IPv6 unicast datagrams32-11 Enabling Stateless Auto-ConfigurationAdministrative-multicast-distance -Optional Ipv6 address autoconfig32-12 Ipv6 enable orImplementing IPv6 on Vlan Interfaces 32-13 Implementing IPv6 Addressing on Loopback Interfaces32-14 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 Discovery32-17 Configuring IPv6 and IPv4 Dual-Stack on the Same VlanEnables IPv6 address on the interface Configuring OSPFv3 for IPv6Configures an IPv4 address on the interface Configures IPv6 address on the interfaceIpv6 router isis area-name Configuring IS-IS for IPv6Enable Configure terminal Router isis area-tag Net network-entity-tag32-20 32-21 Configuring Multiprotocol-BGP for IPv632-22 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 OSPFv332-26 Configuring BFDv6 for BGPVerifying IPv6 Addressing Routing Exits global configuration mode and enters privilegedExec mode Implementing QoS for IPv6Router# show ipv6 route Verifying a Static IPv6 Route32-28 Router# show ipv6 interface loopback Verifying a Stateless Auto-ConfigurationVerifying IPv6 Implementation on Vlan Interfaces 32-29Router# show ipv6 interface loopback0 Verifying ICMPv6 ConfigurationVerifying IPv6 Implementation on Loopback Interfaces 32-30Router# show ipv6 traffic 32-3132-32 Verifying IPv6 Duplicate Address Detection ConfigurationRouter# show ipv6 neighbors detail Verifying IPv6 Neighbor Discovery ConfigurationVerifying IPv6 and IPv4 Dual-Stack Configuration 32-33Router# show ipv6 ospf Verifying OSPFv3 for IPv6 ConfigurationAs shown in the example 32-34Router# show isis ipv6 rib Verifying IS-IS for IPv6 ConfigurationVerifying Multiprotocol-BGP for IPv6 Configuration 32-35BGP 32-36Router# show bfd neighbors Verifying BFD for IPv6 Configuration32-37 32-38 Verifying BFDv6 and OSPFv3 Configuration32-39 Verifying BFDv6 for BGP ConfigurationExample Customizing ICMPv6 Example Configuring IPv6 Duplicate Address DetectionExample IPv6 Addressing on Vlan Interfaces Example IPv6 Addressing on Loopback InterfacesExample Configuring IPv6 Static Routing Example Configuring IPv6 Neighborhood DiscoveryExample Enabling IPv6 Stateless Address Autoconfiguration Example Configuring the IPv4 and IPv6 Dual-StackFollowing is a sample configuration of OSPFv3 for IPv6 Example Configuring BFD and Static Routing for IPv6Example Configuring OSPFv3 for IPv6 Example Configuring BFD and OSPFv3 for IPv632-43 Example Configuring IS-IS for IPv6Following is a sample configuration of IS-IS for IPv6 32-44 Example Configuring Multiprotocol-BGP for IPv632-45 Example Configuring BFD and Multiprotocol-BGP for IPv6Valid prefix pool for IPv6 No ipv6 nd suppress-ra command to enableDebug Commands Show Commands Platform Hardware Commands Route advertisement messages. Also, define a32-47 32-48 32-49 32-50 Chapter of the IPv6 Configuration Guide provide32-51 BGP for IPv6 chapter of the IPv6 Configuration GuideAggregation Services Router Software Configuration Guide 32-52 33-1 Labeled BGP Support33-2 How to Configure Labeled BGP SupportOverview of Labeled BGP Support VPN/VRF over RFC33-3 Configuration Example for Labeled SupportSend-label option Labels Verifying Labeled BGP Support33-4 Router# show bgp ipv4 unicast labelsRouter# show ip cef vrf LTE12 113.22.12.0 internal 33-5Vpnv4 all label Vpnv4 vrf LTE12 label33-6 33-7 RFC-3107Carrying Label Information in BGP-4 33-8 Feature Information for Labeled BGP Support34-1 Mpls Traffic Engineering Fast Reroute Link Protection34-2 34-3 BFD-triggered Fast RerouteR2 R3 34-4 Fast RerouteLink Protection Mpls traffic-eng tunnels Enables Mpls TE tunnel signaling on the specified interfaceEnabling Mpls TE-FRR on an SVI Interface Enabling Mpls TE-FRR for EoMPLS on a Global Interface34-6 Pseudowire-class pw-class-name34-7 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-IS34-10 34-11 Configuring Primary One-hop Auto-Tunnels34-12 34-13 Configuring Backup Auto-Tunnels34-14 Mpls ldp discovery targeted-hello accept command34-15 Ip rsvp signalling hello bfdEnabling BFD Triggered FRR on an SVI Interface Messages from all neighbors34-16 Configuration modeEnable Configure terminal Ip rsvp signalling hello bfd Enabling BFD Triggered FRR on a RouterRouter# show mpls traffic-eng tunnels brief Verifying Mpls TE-FRR ConfigurationVerification Examples 34-17Router# show mpls traffic-eng fast-reroute database Use the following command to verify the reservation detailRouter# show mpls traffic-eng tunnels backup 34-18Router# show ip rsvp fast-reroute Verifying Backup Auto-TunnelsVerifying Primary One-hop Auto-Tunnels 34-1934-20 Verifying BFD Triggered FRR ConfigurationDatabase 34-21Router# show ip rsvp hello 34-22Router# show ip rsvp hello bfd nbr detail 34-23Router# show ip rsvp interface detail Router# show ip rsvp hello bfd nbrExample Configuring BFD Triggered FRR Example Configuring Mpls TE-FRRExample Configuring Primary One-hop Auto-Tunnels Example Configuring Backup Auto-Tunnels34-25 Mpls TE FRR34-26 34-27 34-28 35-1 Layer 2 Control Protocol Peering, Forwarding, and Tunneling35-2 Layer 2 Control Protocol ForwardingLayer 2 Control Protocol Tunneling 35-3 35-4 Configuring Layer 2 PeeringDefault Action Configuration Option L2protocol peer protocol35-5 Configuring Layer 2 Forwarding35-6 Routerconfig-if# l2proto-forward tagged CdpRouterconfig-if# service instance Ethernet Protocol-Specifies the protocol to be forwarded35-7 Configuring Layer 2 Tunneling35-8 L2protocol tunnel protocol Bridge-domain bridge-id35-9 Verifying Layer 2 PeeringVerifying Layer 2 Forwarding Verifying Layer 2 Tunneling35-10 Example Configuring Layer 2 PeeringExample Configuring Layer 2 Forwarding Following is a sample configuration of layer 2 peering35-11 Example Configuring Layer 2 Tunneling35-12 Router35-13 35-14 Commands Cisco IOS LAN Switching Commands35-15 Following command was introduced l2proto-forward35-16 36-1 Configuring Inverse Muliplexing over ATM36-2 How to Configure IMANo ip address Atm bandwidth dynamic No atm ilmi-keepalive Configuring ATM IMA on T1/E1 InterfaceIma-groupima-group-number Interface ATMslot-number/IMAima-group-number36-4 Configuring ATM IMA over MplsConfiguring the T1/E1 Controller 36-5 Configuring an ATM IMA InterfaceClock source internal Ima-groupgroup-number36-6 Configuring ATM over Mpls Pseudowire InterfaceDisables the Ilmi keepalive parameters You can configure ATM over Mpls in the following modes36-7 Configuring a Port Mode PseudowireConfiguring an N-to-1 VCC Cell Mode Configures the ATM interface36-8 Configuring an N-to-1 vPC Cell ModeEnable Configure terminal Interface ATMslot/IMAgroup-number Xconnect ip-addressport-numberencapsulation mpls one-to-one36-9 ATM AAL5 SDU VCC Transport36-10 Verifying IMA ConfigurationsSets the encapsulation type to AAL5. AAL5 is the default L2transport encapsulation for the VCC mode36-11 How to Configure ATM Class of ServiceConfiguring Constant Bit Rate Enters the global configuration mode36-12 Configuring Unspecified Bit RateMode Ubr+ pcr-rate mcr-rate Configuring Unspecified Bit Rate PlusATM class of service with the rate equal to the bandwidth IMA links and the bandwidth of each linkMcr-rate-Peak cell rate in Mbps Configures the UBR+ QoS class for an ATM permanent virtualCircuit and specifies the bandwidth Pcr-rate-Peak cell rate in Kbps36-15 Configuration ExamplesExample Configuring a Port Mode Pseudowire Example Creating an IMA InterfaceExample Configuring UBR Example Configuring an N-to-1 VCC Cell ModeExample Configuring an N-to-1 VPC Cell Mode Example Configuring CBRExample Configuring VBR for Non-Real Time Traffic Configuring Marking Mpls Experimental BitsExample Configuring UBR Plus Example Configuring VBR for Real Time Traffic36-18 Applying the Policy-mapApplying a Policy map on PVC and PVP 36-19 Disables the Ilmi trap parametersSets the PVC encapsulation type to AAL0 Attaches a policy map to the input interface36-20 Applying a Policy map on ATM IMA InterfaceInterface ATM slot/IMA group-number Creating a Table-mapTable-maptable-map-name 36-2136-22 Default copyCreating a Policy-map for SVI Interface Map from from-value to to-value36-23 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 ATM37-1 IPv6 over Mpls 6PE and 6VPE37-2 37-3 Benefits of 6PE and 6VPEIPv6 on Provider Edge Routers PE equipment, connected to CEs and entry IPv6 on VPN Provider Edge RoutersComponents of MPLS-based 6VPE Network IPv6 router on the customer37-5 Supported FeaturesInterface Numbers How to Configure IPv6 over Mpls 6PE and 6VPEConfiguring 6PE Scalability Numbers37-7 Address-family ipv6Exit-address-family 37-8 37-9 Configuring 6VPESetting up IPv6 Connectivity from PE to CE Routers 37-10 Setting up MP-BGP Peering to the Neighboring PEVRF table for an IPv6 address Vrf-name-Optional a specific VRF table for an IPv6Extended-Specifies that only extended communities will be Places the router in address family configuration mode forEnable the exchange of information with a BGP neighbor Address prefixes37-12 Setting up MPLS/IPv4 Connectivity with LDP37-13 Creating IPv6 VRFs on PE RoutersAddress-family ipv4 To configure dual-stack VRF, complete the following stepsSessions that use standard IPv4 address prefixes 37-14Router# show ipv6 protocols vrf vpe1 Verifying IPv6 over Mpls 6PE and 6VPE Configuration37-15 Router# show bgp vpnv6 unicast allRouter# show ipv6 cef vrf cisco1 37-16Router# show mpls forwarding-table vrf vpe1 37-17Router# show ipv6 route vrf Router# show bgp ipv6 200133/64 Example Configuring 6PEFollowing is a sample configuration of 6PE 37-1837-19 Example Configuring 6VPEFollowing is a sample configuration of 6VPE 37-20 37-21 Feature Information for IPv6 over Mpls 6PE and 6VPE37-22 38-1 Storm Control38-2 Configuring Storm Control38-3 38-4 Verifying Storm ControlStorm-control Configuring Error Disable RecoveryErrdisable recovery cause 38-5Cause Monitoring Error Disable RecoverySeconds-Specifies the time to recover from a specified Error-disable causeRouter# debug platform hardware ether SC Configuration Example for Storm Control38-7 38-8 38-9 Feature Information for Storm Control38-10 39-1 Remote Loop-Free Alternate Fast Reroute39-2 Remote LFA-FRR Link Protection 39-339-4 Pseudowire Redundancy over FRRBenefits of Remote LFA-FRR Avoiding Traffic Drops39-5 Conditions for SwitchoverCESoPSN, SAToP, and ATM/IMA 39-6 Configuring Remote LFA-FRR for IS-ISIp router isis Switch Virtual Interface SVISpecifies an IP address for the specified interface 39-739-8 39-9 Configuring Remote LFA-FRR for OspfRouter 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 39-12 Configuring Remote LFA-FRR on a Global InterfaceAccept-Configures the router to respond to requests for Targeted hello messages from all neighbors39-13 Configuring Remote LFA-FRR on a GigabitEthernet Interface39-14 Configuring Remote LFA-FRR on an SVI Interface39-15 Configuring Remote LFA-FRR on IS-IS39-16 Passive-interfaceinterface-type interface-number39-17 39-18 39-19 Configuring LFA-FRR for EoMPLSDisables sending routing updates on an interface Backup peer peer-ip-address vc-idNegotiation auto Removes an IP address or disables IP processingEnables automatic negotiation 39-2039-21 Configuring LFA-FRR for ATM/IMA39-22 39-23 Configuring LFA-FRR for CESoPSNBackup peer peer-ip-address Exit Interface CEM slot/port No ip address39-24 39-25 Configuring LFA-FRR for SAToPExit Interface CEM slot/port 39-26 39-27 Verification Examples for Remote LFA-FRRRouter# show ip cef 171.1.1.0 internal Verifying Remote LFA-FRR Configuration39-28 Router# show ip ospf fast-reroute remote-lfa tunnelsRouter# 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 39-32Router# show mpls l2 vc 90 detail Verifying Remote LFA-FRR Configuration on IS-ISVerifying Remote LFA-FRR Configuration on ATM/IMA 39-33Router# 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 39-36 Example Configuring Remote LFA-FRR for IS-ISExample Configuring Remote LFA-FRR for Ospf Example Configuring Remote LFA-FRR Globally39-37 Example Configuring Remote LFA-FRR on an SVI InterfaceExample Configuring EoMPLS Pseudowire Redundancy over FRR Example Configuring LFA-FRR on ATM/IMA39-38 Example Configuring LFA-FRR on CESoPSNExample Configuring LFA-FRR on SAToP 39-39 39-40 Reroute,40-1 Digital Optical Monitoring40-2 How to Enable Transceiver MonitoringEnters transceiver type configuration mode Routerconfig# transceiver type all40-3 Show interfaces transceiver commandExamples Example Displaying Transceiver InformationRouter# show interfaces transceiver detail Example Displaying Detailed Transceiver Information40-4 40-5 Example Displaying List of Supported Transceivers40-6 Example Displaying Threshold Tables40-7 40-8 Router# show interfaces transceiver threshold violations Example When Transceiver Monitoring is DisabledExample Displaying Threshold Violations 40-940-10 Example Displaying SPF DetailsSCP6G44-C1-BMH 40-1140-12 SFF-847240-13 Feature Information for Digital Optical Monitoring40-14 41-1 IPv4 Multicast41-2 Protocol Independent Multicast Supported ProtocolsPIM SSM for IPv4 Source Specific Multicast41-4 IGMPv1IGMPv2 IGMPv3Static SSM Mapping Ip igmp static ssm-map commandPIM SSM Mapping Reverse Path ForwardingIp pim sparse-mode Asr901-multicast source Configuring IPv4 MulticastEnables multicast routing Enabling IPv4 Multicast Routing41-7 Configuring PIM SSMEnable Configure terminal Ip pim ssm default Ip pim sparse-mode Ip igmp version41-8 Configuring PIM SSM MappingIp igmp ssm-map static access-list source-address 41-9 Verifying IPv4 Multicast RoutingVerifying PIM SSM Router# show ip igmp ssm-mapping Verifying PIM SSM Mapping41-10 Router# show ip mrouteShow ip igmp groups interface-type detail Configuration Examples for IPv4 MulticastShow ip igmp groups group-address Show ip igmp groups interface-type interface-number41-12 Example Configuring PIM SSMExample Configuring PIM SSM Mapping Example IPv4 Multicast RoutingRouter# debug ip igmp Example Configuring Rendezvous Point41-13 41-14 41-15 41-16 Feature Information for IPv4 Multicast41-17 IGMPv2,41-18 42-1 IPv6 Multicast42-2 42-3 IPv6 Multicast GroupsIPv6 Multicast Routing Implementation Multicast Listener Discovery Protocol for IPv642-4 Protocol Independent Multicast42-5 PIM-Sparse ModePIM Source Specific Multicast Source Specific Multicast Mapping for IPv642-6 Configuring IPv6 MulticastEnabling IPv6 Multicast Routing Rendezvous Point42-7 Enable Configure terminal No ipv6 mfibDisabling IPv6 Multicast Forwarding 42-8 Disables IPv6 multicast forwarding on the routerDisabling MLD Device-Side Processing No ipv6 mld routerNo ipv6 mld router Configuring MLD Protocol on an Interface42-9 42-10 Configuring a Rendezvous Point42-11 Configuring PIM SSM OptionsEnable Configure terminal Ipv6 pim No ipv6 pim Configuring IPv6 SSM MappingDisables PIM on the specified interface Disabling PIM SSM Multicast on an Interface42-13 Configure terminal Ipv6 mld vrf vrf-namessm-map enableVerifying IPv6 Multicast No ipv6 mld vrf vrf-namessm-map query dnsRouter# show ipv6 pim interface 42-14Router# show ipv6 mld interface gigabitethernet 0/1 Router# show ipv6 mld trafficRouter# show ipv6 pim neighbor count 42-15Router# show ipv6 mld groups summary Router# show ipv6 pim topology 42-16Router# show ipv6 pim neighbor Router# show ipv6 mrouteRouter# show ipv6 pim range-list 42-17Router# show ipv6 pim topology route-count Router# show ipv6 pim group-map FF0EE0111Router# show ipv6 pim join-prune statistic 42-18Router# show ipv6 pim traffic 42-19 Following exampleRouter# show ipv6 mfib interface 42-20Router# show ipv6 mfib status Router# show ipv6 mfib summary42-21 Configuration Examples for IPv6 MulticastExample Configuring IPv6 SSM Mapping Example Enabling IPv6 Multicast Routing42-22 Command Name Description42-23 42-24 Feature Information for IPv6 MulticastChapter of the IP Multicast PIM Configuration Guide 42-25 Chapter of the IP Multicast LSM Configuration Guide42-26 43-1 Configuring Switched Port AnalyzerSpan Limitations and Configuration Guidelines 43-2 Understanding SpanFollowing sections describe Span 43-3 Span SessionSource Interface Span Traffic Configuring SpanDestination Interface Traffic Types43-5 Removing Sources or Destination from a Span SessionVerifying Local Span Configuration Examples for SpanEnable Configure terminal No monitor session sessionnumber Clears existing Span configuration for a sessionRspan Vlan 43-743-8 43-9 Feature Information for Switched Port Analyzer43-10 IN-1 See BSCIN-2 IN-3 IN-4 IN-5 IN-6 See MSCIN-7 IN-8 IN-9 IN-10
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