Re: multicast: bidirectional pim issue

From: ccie99999 <ccie99999_at_googlemail.com>
Date: Thu, 8 Mar 2012 16:09:45 +0000

Man, you are absolutely right! And I would never had the possibility to
chat directly with M. Astorino ;)

On Thu, Mar 8, 2012 at 1:57 PM, Joe Astorino <joeastorino1982_at_gmail.com>wrote:

> Oh the joys of dynamips : ) But hey man if not for dynamips you might
> not have dug this deep into the protocols and learned the
> troubleshooting as well ; )
>
>
>
> On 3/8/12, ccie99999 <ccie99999_at_googlemail.com> wrote:
> > Joe,
> >
> > with real equipment it works!
> >
> > thanks for your help, really appreciate it!
> >
> >
> > On Thu, Mar 8, 2012 at 6:47 AM, Joe Astorino
> > <joeastorino1982_at_gmail.com>wrote:
> >
> >> 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
> >> >
> >> >
> >> > Blogs and organic groups at http://www.ccie.net
> >> >
> >> >
> _______________________________________________________________________
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> >> >
> >> >
> >> >
> >> >
> >> >
> >> >
> >> >
> >>
> >>
> >>
> >> --
> >> Regards,
> >>
> >> Joe Astorino
> >> CCIE #24347
> >> http://astorinonetworks.com
> >>
> >> "He not busy being born is busy dying" - Dylan
> >>
> >
> >
> >
> > --
> > ccie99999
> >
> >
> > Blogs and organic groups at http://www.ccie.net
> >
> > _______________________________________________________________________
> > Subscription information may be found at:
> > http://www.groupstudy.com/list/CCIELab.html
> >
> >
> >
> >
> >
> >
> >
> >
>
> --
> Sent from my mobile device
>
> Regards,
>
> Joe Astorino
> CCIE #24347
> http://astorinonetworks.com
>
> "He not busy being born is busy dying" - Dylan
>

-- 
ccie99999
Blogs and organic groups at http://www.ccie.net
Received on Thu Mar 08 2012 - 16:09:45 ART

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