[j-nsp] igmp snooping layer 2 querier breaks ospf in other devices

[Aaron Gould]

does this help?

ACX5048
- port ge-0/0/4 - vlan 100 - multicast listener/client
- port ge-0/0/5 - vlan 100 - multicast listener/client
- port ge-0/0/6 - vlan 100 - multicast listener/client
- irb.100 routes that vlan - runs pim/igmp/igmp-snooping l2-querier
- xe-0/0/0 - an uplink port running pim to route ssm multicast joins to 
the multicast sender
- port ge-0/0/2 is mapped to an l2circuit over mpls to some remote location
--- i don't see ge-0/0/2 related at all to the vlan 100 where i run 
multicast

-Aaron

On 2/1/2024 8:19 AM, Andrey Kostin wrote:
> Hi Aaron,
>
> It's not clear from your explanation where l2circuits with ospf are 
> connected and how they are related to this irb/vlan.
> Do you really need a querier in this case? IIRC, querier is needed 
> when only hosts are present on LAN and a switch has to send igmp 
> queries. In your case, you have a router with irb interface that 
> should work as igmp querier by default. Not sure if it helps though.
>
> Kind regards,
> Andrey
>
> Aaron Gould via juniper-nsp писал(а) 2024-01-31 14:54:
>
>> I'm having an issue where igmp snooping layer 2 querier breaks ospf in
>> other devices which are in l2circuits
>>
>> Has anyone ever come across this issue, and have a work-around for it?
>>
>> I have the following configured and devices in vlan 100 can join
>> multicast just fine.  But there are other unrelated l2circuits that
>> carry traffic for devices in other vlans and inside this l2circuit is
>> ospf hellos that seem to be getting broken by this configuration
>>
>> set interfaces irb unit 100 family inet address 10.100.4.1/27
>> set protocols ospf area 0.0.0.1 interface irb.100 passive
>> set protocols igmp interface irb.100 version 3
>> set protocols pim interface irb.100
>> set protocols igmp-snooping vlan vlan100 l2-querier source-address 
>> 10.100.4.1
>>
>> Model: acx5048
>> Junos: 17.4R2-S11
>
-- 
-Aaron