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The following is an excerpt from the latest IPexpert text, IPv4/6 Multicast Operation and Troubleshooting by Anthony Sequeira and Terry Vinson.
The following section includes the solutions to the three Trouble Tickets presented in the previous section. Figure 9-11 provides a flowchart that outlines a “quick fire” approach to isolating and remediating issues associated with BSR.
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The following is an excerpt from the latest IPexpert text, IPv4/6 Multicast Operation and Troubleshooting by Anthony Sequeira and Terry Vinson.
Chapter Challenge: BSR Sample Trouble Tickets
The following section includes three sample Trouble Tickets designed to challenge the troubleshooting skills that have been developed in all previous sections of this chapter. These Trouble Tickets were designed using the Routing & Switching rental racks at www.ProctorLabs.com with the initial configurations provided in the file MCAST-CH9-BSR-TT-INITIAL.txt. Keep in mind these sample Trouble Tickets were also tested against home practice racks and the most popular router emulators.
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The following is an excerpt from the latest IPexpert text, IPv4/6 Multicast Operation and Troubleshooting by Anthony Sequeira and Terry Vinson.
As a quick reference, here are the debug command tools utilized in this chapter. This section utilizes the BSR topology in Figure 9-9 for all example output.
Figure 9-9: A Sample BSR Topology
debug COMMAND:
debug ip mpacket [vrf vrf-name] [detail | fastswitch] [access-list] [group]
This command displays multicast packets that are received and sent on the device.
Where:
EXAMPLE OUTPUT: IP(0): s=172.16.24.4 (FastEthernet0/0) d=224.9.9.9 id=7, ttl=254, prot=1, len=114(100), mroute olist nullIP(0): s=172.16.24.4 (FastEthernet0/0) d=224.9.9.9 id=8, ttl=254, prot=1, len=114(100), mroute olist null IP(0): s=172.16.24.4 (FastEthernet0/0) d=224.9.9.9 id=9, ttl=254, prot=1, len=114(100), mroute olist null
debug COMMAND:
debug ip pim [vrf vrf-name] [bsr]
This command displays the mappings for the PIM group to the active Rendezvous Point(s).
Where:
EXAMPLE OUTPUT: R4#debug ip pim bsr PIM-BSR debugging is on R4# PIM-BSR(0): 192.1.2.2 bootstrap forwarded on FastEthernet0/1 PIM-BSR(0): 192.1.2.2 bootstrap forwarded on Serial0/0/0.1 PIM-BSR(0): bootstrap (192.1.2.2) on non-RPF path Serial0/0/0.1 or from non-RPF neighbor 172.16.24.2 discarded
R2#debug ip pim bsr PIM-BSR(0): RP-set for 224.0.0.0/4 PIM-BSR(0): RP(1) 192.1.7.7, holdtime 150 sec priority 0 PIM-BSR(0): RP(2) 192.1.5.5, holdtime 150 sec priority 0 PIM-BSR(0): Bootstrap message for 192.1.2.2 originated R2# PIM-BSR(0): RP 192.1.5.5, 1 Group Prefixes, Priority 0, Holdtime 150 R2# PIM-BSR(0): RP 192.1.7.7, 1 Group Prefixes, Priority 0, Holdtime 150 R2#
R5#debug ip pim bsr PIM-BSR(0): Build v2 Candidate-RP advertisement for 192.1.5.5 priority 0, holdtime 150 PIM-BSR(0): Candidate RP's group prefix 224.0.0.0/4 PIM-BSR(0): Send Candidate RP Advertisement to 192.1.2.2 R5#
Anthony Sequeira CCIE, CCSI
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The following is an excerpt from the latest IPexpert text, IPv4/6 Multicast Operation and Troubleshooting by Anthony Sequeira and Terry Vinson.
As a quick reference, here are the show command tools utilized in this chapter. This section utilizes the BSR topology in Figure 9-8 for all example output.
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