All things related to multicast

[Dave Hartzell <>]

All:

I've been messing with DVMRP tunnels and Cisco IOS
12.0.(7)T, which recently came out with MBGP and
MSDP support.

For me, this version has proven to fix a few things, and
break a few things, but overall stable with regards to
MBGP and MSDP peering, except for the lack of
MBGP help commands.

When I upgraded, a new method of doing multicast
NLRI was introduced (without warning or docs as
far as I can see) called the 'address family', which is
a subsection to the BGP section.

Before the upgrade, I was doing MBGP -> DVMRP
route redistribution, and now I can't seem to find where
in the config I would turn this on!  It used to be:

    ip dvmrp metric 1 mbgp

but now that doesn't seem to exist.

I discovered this while using the latest mrouted across
a tunnel (3.9b3).  The Solaris box I'm using can generate
SDR announcements fine to the rest of the world, I just
couldn't seem to get any SDR sessions in to the UNIX box.

This is when I discovered the lack of the MBGP to DVMRP
redistribution in the Cisco IOS.  I noticed a Bug on the Cisco
Bug Toolkit: CSCdk25282.  I don't know if this relates or not,
but I think that I would still have to redistribute from MBGP
to DVMRP.

Maybe this feature isn't included in this version of IOS...

Any ideas?

--
Dave Hartzell
Great Plains Network