Cisco 10720 Configuration Guide - Page 106
Using the show rpr-ieee topology Command, Using the show rpr-ieee protection Command
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Basic Troubleshooting RPR-IEEE for the Uplink Card Chapter 4 Troubleshooting Using the show rpr-ieee topology Command Use the show rpr-ieee topology EXEC command to verify that topology is valid. The following example shows sample output from this command: Router# show rpr-ieee topology Ring Topology: CLOSED (STABLE) Configured protection mode: WRAPPING Jumbo preference: SET (ring supports JUMBOS) Number of nodes on ringlet0: 3 ringlet1: 3 Checksum: 0x001800D6 Index (Ri 0) MAC IP Address 1 0001.0001.0001 1.1.1.1 2 0003.0003.0003 1.1.1.3 3 0002.0002.0002 1.1.1.2 Index (Ri 1) MAC IP Address 1 0003.0003.0003 1.1.1.3 2 0001.0001.0001 1.1.1.1 3 0002.0002.0002 1.1.1.2 Edge W/E NO/NO NO/NO NO/NO Edge W/E NO/NO NO/NO NO/NO Request W/E IDLE/IDLE IDLE/IDLE IDLE/IDLE Request W/E IDLE/IDLE IDLE/IDLE IDLE/IDLE Using the show rpr-ieee protection Command The show rpr-ieee protection command displays the status of the 802.17 topology-protection. It contains information such as the neighbors found on each ringlet, the protection mode/status and the topology checksum values/status. The following example shows sample output from this command: Router# show rpr-ieee protection Protection Information for Interface RPR-IEEE1/1 MAC Addresses West Span (Ringlet 0 RX) neighbor 0001.0001.0001 East Span (Ringlet 1 RX) neighbor 0003.0003.0003 Station MAC address 0002.0002.0002 TP frame sending timers: fast timer: 10 msec slow timer: 1x100 msec (100 msec) Protection holdoff timers: L1 Holdoff Keepalive Detection West Span 0x10 msec ( 0 msec) West Span 3 msec East Span 0x10 msec ( 0 msec) East Span 3 msec Configured protection mode: WRAPPING Protection Status Ring is IDLE Protection WTR period is 10 sec. (timer is inactive) Self Detected Requests Remote Requests West Span IDLE West Span IDLE East Span IDLE East Span IDLE Distant Requests East Span IDLE West Span IDLE West Span Failures: none East Span Failures: none If the ring reports an "OPEN" state in the topology, there is a link failure in the ring, the details in the ringlet indices will pinpoint the failure location by indicating the Edge location and the Request (reason) for the Edge. Cisco 10720 Internet Router Installation and Configuration Guide 4-6 78-13062-10