From: Hobbs (deadheadblues@gmail.com)
Date: Wed Oct 01 2008 - 00:42:16 ART
By the way if R7 and R8 are PIM neighbors, the ping works great. I guess I
should be asking this:
Are R7 and R8 required to be PIM neighbors or is there another way around
it?
I thought the R1 sending the MSDP message to R8, would populate R8's OIL,
but it appears not...
On Tue, Sep 30, 2008 at 9:17 PM, Hobbs <deadheadblues@gmail.com> wrote:
> Here is my scenarion, SW4 is attempting to ping group joined by BB1:
>
> multicast domain 1 multicast domain 2:
> [BB1--->R1--->R5--->R7] --- [R8---SW3---SW4]
>
> R1 is the RP for domain 1.
> R8 is the RP for domain 2.
> R1 and R8 are MSDP peers and the peer connections are UP:
>
> BB1 is joined to group 225.0.0.25
> SW4 is the sender to 225.0.0.25.
>
> R7 and R8 are PIM enabled on their connected interfaces but are NOT PIM
> neighbors. Otherwise, it would be one big domain.
>
> I'm gonna spoil my last mail by showing every 99th ping is successful:
>
> Cat3560-4#ping 225.0.0.25 re 1000
>
> Type escape sequence to abort.
> Sending 1000, 100-byte ICMP Echos to 225.0.0.25, timeout is 2 seconds:
> ..................................................................
> Reply to request 66 from 100.100.100.100, 17
> ms..........................................................................................
> Reply to request 157 from 100.100.100.100, 17
> ms..........................................................................................
> Reply to request 248 from 100.100.100.100, 17
> ms..........................................................................................
> Reply to request 339 from 100.100.100.100, 16
> ms..........................................................................................
> Reply to request 430 from 100.100.100.100, 16
> ms..........................................................................................
> Reply to request 521 from 100.100.100.100, 17
> ms........................................
>
> I have noticed the mroute entry on R8 is timing out. 150.100.34.14 is the
> address of SW4's sending interface.
>
> R8#show ip mroute 225.0.0.25 | Beg \*
> (*, 225.0.0.25), 00:18:09/stopped, RP 200.0.0.8, flags: SP
> Incoming interface: Null, RPF nbr 0.0.0.0
> Outgoing interface list: Null
>
> (150.100.34.14, 225.0.0.25), 00:02:56/00:00:03, flags: PA
> Incoming interface: FastEthernet0/1, RPF nbr 150.100.81.13
> Outgoing interface list: Null
>
> When this entry times out, I switch to SW4 and the ping is good one time
> only. Then the entry is populated again immediately and the OIL becomes
> NULL. I turned off SPT switchover on all routers with "ip pim spt-threshold
> infinity"
>
> Any ideas?
>
> thanks,
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This archive was generated by hypermail 2.1.4 : Sat Nov 01 2008 - 15:35:18 ARST