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

[Aaron Gould]

At this point I opted for a different design.  I no longer have the 
mcast clients gathered into a vlan, which requires igmp snooping.  I 
changed the mcast client ports to be L3.  I just assign a /30 to each 
mcast client interface on the ACX5048. This way there is no need for 
igmp snooping.  A bit more up-front administration of ip subnets, but 
it's ok, and it's RFC 1918 so I have plenty.

JTAC didn't find anything in the rsi and logs to be able to determine a 
problem, and also told me my Junos is EoL... of course it is. I'll be 
upgrading soon.... right around the time I implement IPv6.  lol

thanks y'all

-Aaron