The bridge module sysfs and
brctl currently lack the ability to inspect the non-configuration IP multicast igmp snooping data. At a minimum there should be the ability to: list detected mcast router ports; list multicast groups with active subscribers and the associated interfaces. The ability to get the related timer data is probably useful as well.
Attached is 'bridge-migmp.stp', a systemtap script that use to get some of this data now, as an example of what we're looking at.
Red Hat Enterprise Linux
Subscriber exclusive content
A Red Hat subscription provides unlimited access to our knowledgebase of over 48,000 articles and solutions.