Re: multicast: bidirectional pim issue

Looks like you caught the fact that your pasted example uses
non-multicast addressing. Aside from that, moving forward what is
Fa0/0 on SW2 connected to? It seems it has an IP address on it and it
seems it points AWAY from the RP but it is the bi-dir PIM DF
interface.

On Wed, Mar 7, 2012 at 6:06 AM, ccie 99999 <ccie99999_at_googlemail.com> wrote:
> Hi GS,
>
> I was trying to work on bidirectional PIM but I'm a bit confused.
>
> This is my topology:
>
> R1 -(eth)- R2 -(ser)- R3 -(eth)- SW2
>
> I've joined 240.1.1.1 on R2 and BSR rp is R3.
>
> Pim bidir is enabled everywhere and simply R3 is bidir BSR for everygroup.
>
> this works:
>
> ping to 240.1.1.1 from R3
> ping to 240.1.1.1 from R2
> mtrace from SW2 to R2
> mtrace from SW2 to BSR (R3)
>
> this doesn't work:
>
> ping to 240.1.1.1 from SW2
>
> on SW2 I see the pim rp mapping:
>
> Rack1SW2#sh ip pim rp mapp
> PIM Group-to-RP Mappings
>
> Group(s) 224.0.0.0/4
> RP 5.5.5.5 (?), v2, bidir
> Info source: 5.5.5.5 (?), via bootstrap, priority 0, holdtime 150
> Uptime: 00:53:37, expires: 00:01:53
>
> and the mroute:
>
> (*, 240.1.1.1), 00:00:03/00:02:56, RP 5.5.5.5, flags: BP
> Bidir-Upstream: Vlan58, RPF nbr 155.1.58.5
> Outgoing interface list:
> Vlan58, Bidir-Upstream/Sparse-Dense, 00:00:03/00:00:00
>
> again on SW2:
>
> Rack1SW2#sh ip pim inter df
> * implies this system is the DF
> Interface RP DF Winner Metric
> Uptime
> FastEthernet0/0 5.5.5.5 *155.1.108.8 124330
> 00:22:49
> Vlan58 5.5.5.5 155.1.58.5 0
> 00:22:49 --> this is the interface on the R3 side
>
> so, everything looks good (at least for me)..
>
> If I do a debug ip mpacket fastswitch 240.1.1.1 and I do a ping from SW2 to
> 240.1.1.1 I see this:
>
> Rack1R3#
> *Mar 1 01:46:35.319: FS(0): Receive s=155.1.58.8 d=240.1.1.1 id=43 prot=1
> size=114(100) ttl=254 from FastEthernet0/0 ... punt to create state
>
> and I see this:
>
> (*, 240.1.1.1), 00:00:24/00:03:12, RP 5.5.5.5, flags: B
> Bidir-Upstream: Null, RPF nbr 0.0.0.0
> Outgoing interface list:
> Serial0/0, Forward/Sparse, 00:00:17/00:03:12
>
> OIL shows only serial0/0 (the side to R2) and not the interface to SW2.
>
> Am I missing something in the troubleshooting?
>
> another question: how can I search in the archives of this ml? apparently
> they are empty.. :(
>
> thanks a lot
>
>
> Blogs and organic groups at http://www.ccie.net
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
>
>
>
>
>
>
>

-- 
Regards,
Joe Astorino
CCIE #24347
http://astorinonetworks.com
"He not busy being born is busy dying" - Dylan
Blogs and organic groups at http://www.ccie.net