From: Toh Soon, Lim (tohsoon28@gmail.com)
Date: Tue Oct 30 2007 - 15:04:18 ART
Hi Group,
I'm configuring PIM-SM using Bootstrap Protocol. Below are outputs on one of
the PIM routers:
R8#sh ip pim bsr-router
PIMv2 Bootstrap information
BSR address: 200.0.0.7 (?)
Uptime: 00:32:43, BSR Priority: 0, Hash mask length: 30
Expires: 00:02:06
R8#sh ip pim rp map
PIM Group-to-RP Mappings
Group(s) 228.13.0.0/16
RP 200.0.0.7 (?), v2
Info source: 200.0.0.7 (?), via bootstrap, priority 0, holdtime 150
Uptime: 00:13:52, expires: 00:01:28
RP 200.0.0.5 (?), v2
Info source: 200.0.0.7 (?), via bootstrap, priority 0, holdtime 210
Uptime: 00:13:58, expires: 00:02:29
With the BSR advertising a hash mask length of 30, should I be expecting 4
groups mapped to one RP, the next 4 groups to the second RP, the next 4 to
the first RP again, etc?
I used the command "sh ip pim rp-hash..." and found out that groups
228.13.0.0, 228.13.0.1, 228.13.0.2, 228.13.0.3, 228.13.0.4, 228.13.0.5, ...,
etc all mapped to RP 200.0.0.7.
I tried a mask length of 31. Yes, bundles of two groups are indeed assigned
to each RP.
Did I miss something or simply understanding the concept wrongly? Please
comment.
Thank you.
B.Rgds,
Lim TS
This archive was generated by hypermail 2.1.4 : Fri Nov 16 2007 - 13:11:19 ART