Multicast configuration driving me nuts

[dtdamen]

Hi Silvio,
there is nothing I can see for output. No life, no counter, nothing
Not on the core and not on the 6560 switches
No idea what´s wrong in my configuration.

Thomas

[Cristek]

At this point I'd open an SR with ALE.
I always do it the same way as Silvio. Globally.

Core:

Code: Select all

ip multicast admin-state enable
ip multicast version 3
ip multicast querier-forwarding enable
ip multicast querying enable

Edge:

Code: Select all

ip multicast admin-state enable
ip multicast version 3
ip multicast querier-forwarding enable

We never needed to use 'proxy' or 'spoofing', and sometimes we use 'zapping' on the Edge switches for IPTV as well.
That's it. I dont even know the exact use case for proxy and spoofing, but I know spoofing causes VoIP issues according to my colleagues.

In terms of show commands, you need to see info with:
show ip multicast group/neighbor/forward/querier
(what groups I'm in / what neighbors I have / what I forwarded to others / who is the querier)

[silvio]

If you have an active ip interface within that vlan you should see an querier. Check the ip interface at the core again, delete it and create it new. it needs to be up at "show ip int".

[dtdamen]

Hi Sylvio,
IP interface for my TV VLAN is up and running
CKSW-TelevisTV 10.128.44.1 255.255.254.0 UP YES vlan 422

But have also found the following entry for "sh ip interface"
querier 0.0.0.0 0.0.0.0 DOWN NO unbound

Thanks
Thomas

[silvio]

delete it with
"no ip interface querier"

[dtdamen]

done

[dtdamen]

Hi guys,
have changed the configuration on Core and Edge for Multicast in single VLAN only.
It´s working on a single TV but not sure whether I`ll run into trouble with more than one stream.
Still no output for show ip multicast querier


Core:
ip multicast admin-state disable
ip multicast querying disable
ip multicast zapping disable
ip multicast version 2
ip multicast robustness 5
ip multicast proxying disable
ip multicast querier-forwarding disable
ip multicast vlan 422 admin-state enable
ip multicast vlan 422 querying enable
ip multicast vlan 422 zapping disable
ip multicast vlan 422 proxying enable
ip multicast vlan 422 querier-forwarding enable

Edge:
ip multicast admin-state disable
ip multicast querying disable
ip multicast spoofing disable
ip multicast zapping disable
ip multicast querier-forwarding disable
ip multicast vlan 422 admin-state enable
ip multicast vlan 422 querying enable
ip multicast vlan 422 zapping disable
ip multicast vlan 422 querier-forwarding enable
ip multicast vlan 422 flood-unknown enable

Thomas

[dtdamen]

Gentleman, finally I got it running
sh ip multicast querier

Total 1 Queriers

Host Address Vlan/Service Interface Static Count Life
---------------+--------------+----------------------+-------+------+-----
10.128.44.1 vlan 422 0/1 no 3 133

I had to remove any global entry for multicast from the switch configuration.

Core:
ip multicast version 2
ip multicast robustness 5
ip multicast vlan 422 admin-state enable
ip multicast vlan 422 querying enable
ip multicast vlan 422 querier-forwarding enable

Edge:
ip multicast vlan 422 admin-state enable
ip multicast vlan 422 querying enable
ip multicast vlan 422 querier-forwarding enable
ip multicast vlan 422 flood-unknown enable

Thanks bunches for all your assistance, really appreciated

Thomas