Hi Community,
we have a VC built up with 4x QFX5100 running 14.1X53-D35. Most of the traffic is Mcast video traffic entering from the upstream switches towards the cliente ndoes connected to this juniper VC
I'd like to confirm with you if the below behaviour is correct or if the switch should handle the IGMP Leave gorup messages in in different form.
IGMP configuration:
protocols igmp-snooping
vlan Video {
interface ae0.0 {
multicast-router-interface;
}
}
##Igmp snooping enabled for Video vlan and ae0 is the interafce towards the upstream switching network.
Vlan video is shared between the client nodes and the ae0 interface facing the swtihing core where the traffic comes in.
let's say we have 4 servers members of mcast channel #3 for example.
What we see is that when server#3 for instance sends a leave group message for mcast channel#3, this message is forwarded as well via if ae0 towards the upstream switch, being this one configured with the immediate-leave, meaning that the rest of the servers even still interested receiving mcast traffic on channel 3 get the feed cut until a new memebershipquery/report is sent.
My doubt here is if the juniper is working fine sending the leave gorup towards the upstreams switches or it should handle internally via CPU the leave group message sent by server#3 thus cutting only the mcast feed to this server while keeping it for the others servers, meaning no leave group message is sent towrdas te upstream switch while at least we have 1 server still memeber of that channel.
So far i could not find in Juniper doc how it handles this (via CPU).
Thanks
Gab