From: CCIE To Be (ccie.tobe81@gmail.com)
Date: Fri Jan 30 2009 - 10:59:04 ARST
Hello everyone,
Here is a multicast domain,
R3---FR---R1-----R2------R4------FR-----R5
R1 & R4 are RP+Mapping Agents with R1 as primary and R4 as backup. R3 is
having following groups joined 225.5.5.5 & 226.6.6.6. All interfaces of
routers in multicast domain are in sparse mode and 'auto-rp listner' is NOT
configured. When R1 is primary RP and I try to ping multicast groups from R5
then it succeed only when R4 is DR for network b/w R4 & R5. Other thing is
that R5 don't show anything in 'show ip pim rp' whereas it shows information
if I use 'show ip pim rp mapping' means R5 has RP mapping but output of
'show ip pim rp' command is blank.
Kindly explain this behavior.
HTH,
Raul
Blogs and organic groups at http://www.ccie.net
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