Pnni Routing, Pnni Node Addressing | Cabletron Systems 04-0053-01

3 PNNI ROUTING

All ATM SmartSwitches use PNNI version 1.0 as their default routing protocol. PNNI provides automatic and dynamic connectivity among all PNNI nodes within the same peer group. By configuring multi-level PNNI topologies and peer group leaders, full hierarchical PNNI routing can be established with connectivity between different peer groups.

Note For a complete explanation of all PNNI related commands, see the SmartSwitch ATM Reference Manual.

3.1PNNI NODE ADDRESSING

By default, all ATM SmartSwitches come configured with a single PNNI node. All PNNI nodes are in the same peer group and at the same group level.

3.1.1Default PNNI Addressing

All PNNI entities on SmartSwitch ATM switches are assigned default values (which can be changed). The following describes the formulae used in creating these values.

Default Peer Group ID = 50:39:00:00:00:00:00:00:00:00:00:00:00:00

Default Group Level = 80 (50 hexadecimal)

SmartSwitch 2500 Family Default Node ID

Default Node ID = level + child node’s peer group level (see note) + 39 + nine zero (00) bytes + last three bytes of CPU MAC address + CPU MAC address with 127 summed with the last byte + zero (00) byte

Note If the node does not have a child node, and the node is also at the lowest level, the second byte is assigned the constant value A0 (160 decimal).

For example, for a node at the lowest level (80), the level and address length bytes are 50 (80 in hexadecimal) and a0 (160 in hexadecimal), respectively.

SmartSwitch 6500 Family Default Node ID

Default Node ID = level + child node’s peer group level (see note) + 39 + nine zero (00) bytes + last three bytes of chassis MAC address + switch MAC address with 127 summed with the last byte + zero (00) byte

SmartSwitch ATM User Guide 3-1

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Cabletron Systems 04-0053-01 manual Pnni Routing, Pnni Node Addressing, Default Pnni Addressing

Contents

Part Number 04-0053-01 Rev. a Order Number SmartSwitch ATM Switch User Guide Ii SmartSwitch ATM Switch User Guide FCC Class a Notice Manufacturer’s Name Application of Council DirectivesManufacturer’s Address Product Name Safety Information Class 1 Laser Transceivers Fiber Optic Protective Caps Regulatory Compliance Summary Safety Document Name Revision History Table of Contents Virtual Ports and Static Connections Index Table of Contents Xii SmartSwitch ATM User Guide List of Figures List of Figures Xiv SmartSwitch ATM User Guide List of Tables List of Tables Xvi SmartSwitch ATM User Guide Introduction Contents of the User Guide Smartswitch ATM Switch Differences Creating AN IP Over ATM Vlan IP Over ATM and LaneIP address is for example only Subnet mask is for example only Creating an IP over ATM Vlan IP Over ATM and Lane Default Netprefix for SmartSwitch 2500 Family Switches Default ATM Addressing for IP over ATMDefault Netprefix for SmartSwitch Default IP Over ATM Local Client Address Creating AN Emulated LAN Ilmi ATM Addressing for LAN Emulation SmartSwitch 2500 Family Default Lane Addressing Lecs address is constructed from SmartSwitch 6500 Default Lane AddressingChassis MAC address = 0020D4144180 Then CPU MAC address = 0020D4144180 Elan number = Then ELANs Across Multiple Switches Chassis MAC address = 00001DA3870B ThenChassis MAC address = 00001DA3870B Elan number = Then Switch Clients Distributed Lane ServicesJust for this example Specify the LES address on SW2 Use the add leselan command to create an LES on switch SW2 Elan Join Policies Best Effort Elan Join TestSW1 # show client By Route Descriptor By MAC Address Weight the policy at Lecselanlec TableUse ? to see possible types Physical Versus Logical BUS Multicasting Lane Over WAN CircuitsNo MAC address is specified Elan is specified by Elan number Single PVP connection between clients and Lane services Lane Service Redundancy Using Lnni Lnni Redundant LECSs on same network Lane Load Sharing Lnni call set up load sharing How Lnni handles Elan join requests Setting up Lnni LECs SW1 # stop les SW1 # stop lecsSW1 # set lnniinfo SW2# set lnniinfo Similarly, create the same Elan elan1 on SW2 On SW1, create an Elan in this example, we create elan1SW1 # add elan SW2 # add elan Configuring Lnni Distributed LES/BUS Servers SW2 # show elanSW1 # show lecsneighborinfo On switch SW3, use the set lnniinfo to configure Lnni SW3 # start les LES SW1 # show lecsserverlistPage SmartSwitch 2500 Family Default Node ID Default Pnni AddressingSmartSwitch 6500 Family Default Node ID Pnni Routing SmartSwitch 6500 Default Node ATM Address SmartSwitch 2500 Family Default Node ATM Address MULTI-LEVEL Pnni Topology Connecting Multiple Peer Groups Change the tenth byte to SWA1 # set pnnipeergroupid Do the same for switch SWB3 Specifies node numberHighest priority in election process Do the same on switch SWB3 SWB3 # set pnnipglelectionSWA3 # show pnnipglelection Adding Higher-level Peer Groups Physical Connections Between Peer Groups Adding a third Pnni node for next level connectivity Managing Parallel Pnni Links SmartSwitch # show pnniinterface 7b2 Link on switch SWA2 comes from this port Perform the same operation on switch SWB2 in group B4a3 Link on switch SWB2 comes from this port Aggregation Tokens Aggregation token values and parallel links Pnni Link Timing SmartSwitch # set linkmonitortimeout Additional Routing Protocols RoutingIisp Routes This is an exterior route Iisp Routing Considerations Iisp Routing Example Two Iisp Routing Example One Iisp Link Timing Set linkmonitortimeout UNI Routes Take the default to make this an internal routeYes Advertise this address into the Pnni domain UNI Link Timing Administrative Weights Route MetricsCreating Route Metrics Create the outgoing member of the metric pair Create the incoming member of the metric pairEnter show pnnimetric to view the newly created metric pair 6b2 IP Routing for ManagementIndex tag of our metric pair 90.1.1.254 Route NET Table To see the route, enter the show route command on SW2 Virtual Ports and Static Connections SmartSwitch # add trafficdescriptorPVC Connections Point-to-Point PVCs Specify first port Point-to-Multipoint PVCsSpecify its Vpci Specify its VCI Take the default values Perform for ports 7a3 and 7a4Set PCRCLP01 to zero Connect the end node to port 7a1 of the ATM SmartSwitch Connecting to Local Switch Client Through a PVCUse add ipatmclient to create an IP over ATM local client Set client number Turn off signaling PVP ConnectionsTurn off Ilmi 7b1 Use the show pvp command to display the PVP connectionSee note below Specify the first port Connecting PVPs Virtual Ports7a1.3, 5b2.3, A1.3, C5.3, and so on Available VPIs = 2MaxVpiBits Creating Virtual Ports Default MaxVciBits = Default MaxVpiBits =Instance of set portconfig Set to 1 this translates to VPIs = 2 1-1 = VPIs used = Base VPI + 2 0 1 = 1 + 0 = .1 means our Base VPI is oneMaxVciBits decrements by Specify virtual port number and Base VPI Things To Watch Out For When Creating Virtual Ports Soft PVC and PVP ConnectionsSoft PVC and Soft PVP differences Creating a soft PVC Making Soft PVC and PVP Connections SmartSwitch # add spvcaddress 6b3 Port on target switchSmartSwitch # show spvcaddress 102 7a1 Port on source switch Creating a Soft PVP We use VPI= SmartSwitch # show spvp PortNumberALL Soft PVC and PVP Connections Traffic Management Traffic Management CapabilitiesTraffic Descriptors PeakCellRate CLP0+1 No Traffic DescriptorPeakCellRate CLP0+1, PeakCellRate CLP0 PeakCellRate CLP0+1, PeakCellRate CLP0, Tag CLP = Call Admission Control Policy SmartSwitch # set caceqbwallocscheme SmartSwitch # set cacserviceclassbwUbr CPU UBR Queue Buffers 7a3 Corresponds to CBRMinIndex for SmartSwitch # show switchtrafficcongestion SmartSwitch # set switchtrafficcongestionEFCI, EPD, and RM Cell Marking Traffic Management Capabilities Update Firmware Commands Firmware Upgrades and Bootline CommandsUnsuccessful Update IP address of Tftp server Bootline Commands Enter the go command to start the ATM SmartSwitch=df s Accessing the Bootline Prompt Bootline Commands Explanations Changes the slave TSM/CPU to the master ScsmSwms =df b Upgrading Boot Load firmware Changing the Default Boot Load Image Upgrading Post Diagnostic firmware=chpi =df p Bootline CommandsFirmware Upgrades and Bootline Commands Upgrading Switch Operating firmware Start the ATM SmartSwitch by entering the go command Bootline Commands Port ATM Address Filters ATM Filtering and ClockingCreating ATM Address Filters How ATM Address Filters Work Source and Destination Address Masks ATM Address Filter Example Port Clock Configuration Filter Considerations Regarding Lane and IP over ATMFFFFFFFFFFFFFFFFFFFF00000000000000000000 Network Clocking Troubleshooting IP Over ATM Troubleshooting Troubleshooting LAN Emulation Troubleshooting Pnni Links Switches in Same Peer GroupSwitches in Different Peer Groups Diagnosing Congestion Troubleshooting CongestionGlobal Congestion Fewer than 100 connections on a port Min = 64, Max = Port Congestion Event Categories Events and Alarms SmartSwitch # set eventdisplay Viewing Events and Alarms SmartSwitch # set alarmdisplay Deleting Events and Alarms Password Login name on the serverSaving Core Dumps IP address of my Tftp server Saving Core Dumps MIB, SMI, MIB Files and Internet MIB Hierarchy Appendix a Agent Support MIB, SMI, MIB Files and Internet MIB Hierarchy CSI ZeitNet Proprietary MIBs Relation Between Object Identifier and the Represented Value Supported protocols Supported SMI FormatsCSI ZeitNet Proprietary MIB Groups Ctron ATM SmartSwitch MIB Support MIB ExceptionsNon-Conformance Managing AN ATM Smartswitch Console Commands that Affect the AgentNot Supported Update firmware Backup Restore Reboot Default Community Strings Electronic Services FAX ServiceAppendix B Technical Support Telephone Assistance Hardware Warranty Software WarrantyRepair Services Index Accessing the boot load prompt 12,4-4,4-6 Iisp routing considerations Fail-over timing Route type parameter ZnSwitchDiscoveryTable ZnPortTrafficCongTableMulti-level Pnni topology PNN Enabling RM cell marking Changing EPD thresholds Vlan