From: Brian McGahan (bmcgahan@internetworkexpert.com)
Date: Sun Oct 17 2004 - 22:15:10 GMT-3
> because though my multicast configs are correct but a ping
> to group address may fail due to this issue? Do i deserve points in
> real lab with this ignorance ;)
If your configuration isn't functional it isn't correct.
Brian McGahan, CCIE #8593
bmcgahan@internetworkexpert.com
Internetwork Expert, Inc.
http://www.InternetworkExpert.com
Toll Free: 877-224-8987 x 705
Outside US: 775-826-4344 x 705
24/7 Support: http://forum.internetworkexpert.com
Live Chat: http://www.internetworkexpert.com/chat/
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
Of AK
> Singh
> Sent: Sunday, October 17, 2004 7:12 AM
> To: ccielab@groupstudy.com
> Subject: IE Lab 3 - Multicast
>
> Hello All,
>
> I was doing IE lab 3 ( good labs ) where the multicast groups is on R2
> (in dense mode) and R5 is hub with two spokes R2 and R4.Its seen that
> R1 and R3 (R1 is directly connected to R5 and R3, R3 is connected to
> R2 but pim is not enabled on that connection).
>
> Q1. The ping from R1 or R3 to group at R2 fails. When i disabled
> mroute-cache at R5's interfcae to R1, it works. I cann't figure out
> why? How do we see the entries in mroute-cache?
>
> Q2. I noticed that my ip routing has best path for R3 via R2, that
> means RPF fails when packet comes via R3->R1->R5 destined to R2. So my
> question is when dealing with multicast should we always take care of
> RPF issues..because though my multicast configs are correct but a ping
> to group address may fail due to this issue? Do i deserve points in
> real lab with this ignorance ;)
>
> Thanks in advance.
> -Anand
>
>
This archive was generated by hypermail 2.1.4 : Sat Nov 06 2004 - 17:11:49 GMT-3