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Chapter Challenge: BSR Sample Trouble Tickets Solutions

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By Anthony Sequeira on January 26th, 2012
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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 Solutions

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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Chapter Challenge: BSR Sample Trouble Tickets

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By Anthony Sequeira on January 25th, 2012
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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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BSR debug Command Tools

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By Anthony Sequeira on January 24th, 2012
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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.

BSR debug Command Tools

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:

  • vrf – optional; specifies the name of the multicast VRF instance
  • detail – optional; displays IP header and MAC information
  • fastswitch – optional; displays IP packet information in the fast path
  • access-list – optional; restricts the output per the specified access-list
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:

  • vrf – optional; specifies the name of the multicast VRF instance
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
Twitter: @compsolv
Facebook: http://www.facebook.com/compsolv

 

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BSR show Command Tools

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By Anthony Sequeira on January 23rd, 2012
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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.

BSR show Command Tools

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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Buy a Bundle, Save a Bundle!! CCIE R&S, CCIE Voice, and CCIE Security Bundled Products

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By Sanjana Desai on January 21st, 2012
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Buy a Bundle, Save a Bundle! This weekend IPexpert has 3 incredible deals for CCIE R&S and CCIE Voice Candidates! We have bundled some of our most requested materials together and are offering them at a significantly reduced price.


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