Re: multicast: bidirectional pim issue

I would try it on some real equipment. With PIM bi-dir each segment
elects a DF which is basically the device closest to the RP. So, the
SW2 interface being DF was not an issue here. It seems to look good.

On Thu, Mar 8, 2012 at 12:39 AM, ccie99999 <ccie99999_at_googlemail.com> wrote:
> adding this info:
>
> I did a debug ip mpacket fastswitching 238.1.1.1 everywhere..: R1,R2,R3,SW2
> and the I did ping the 238.1.1.1 from *SW2 and I see this:
> *
> SW2#ping 238.1.1.1
>
> Type escape sequence to abort.
> Sending 1, 100-byte ICMP Echos to 238.1.1.1, timeout is 2 seconds:
> .
>
> *on R3, the RP: *
>
> R3#
> *Mar 1 00:43:21.891: FS(0): Receive s=155.1.58.8 d=238.1.1.1 id=42 prot=1
> size=114(100) ttl=254 from FastEthernet0/0
> *Mar 1 00:43:21.895: FS(0): Forward s=155.1.58.8 d=238.1.1.1 id=42 prot=1
> size=104(100) ttl=254 to Serial0/0
>
> (entering from fa0/0, the one that goes to svi vlan58 on the switch and
> exiting on the serial, the one that goes to R1 and R2)
>
> *on R1 and R2: *
> simply nothing
>
> looks like the packet are reaching the BSR RP, they are able to exit and
> then they are lost.
>
> I've also tried to get away from the pim bidirection mode and I set up the
> R3 as regular BSR RP:
>
> R3#conf t
> Enter configuration commands, one per line. End with CNTL/Z.
> R3(config)#no ip pim rp-candidate Loopback0 bidir
> R3(config)#ip pim rp-candidate Loopback0
> R3(config)#
>
> I did a clear ip mroute * everywhere and did a ping again from SW2 and this
> time is working:
>
> *SW2#ping 238.1.1.1 *
>
> Type escape sequence to abort.
> Sending 1, 100-byte ICMP Echos to 238.1.1.1, timeout is 2 seconds:
>
> Reply to request 0 from 155.1.146.6, 320 ms
>
> *R3#*
> *Mar 1 00:51:26.071: FS(0): Receive s=155.1.58.8 d=238.1.1.1 id=47 prot=1
> size=114(100) ttl=254 from FastEthernet0/0 ... punt to create state
>
> *R1#*
> *Mar 1 00:51:16.371: FS(0): Receive s=155.1.58.8 d=238.1.1.1 id=47 prot=1
> size=104(100) ttl=253 from Serial0/0.1 ... punt to create state
>
> *R2#*
> *Mar 1 00:51:25.915: FS(0): Receive s=155.1.58.8 d=238.1.1.1 id=47 prot=1
> size=118(100) ttl=252 from FastEthernet0/0.146
>
> looks like an odd issue just on bidir pim on gns3?
>
> thanks
>
>
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-- 
Regards,
Joe Astorino
CCIE #24347
http://astorinonetworks.com
"He not busy being born is busy dying" - Dylan
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