Re: IPv6 and multicast listener discovery

2021-06-20 Thread William Herrin
On Mon, Jun 7, 2021 at 9:34 AM Dale W. Carder wrote: > Are your links or hosts limited in some way or broadcast domains > of some unreasonable size? Most of the competent switching or > managed wireless products will snoop or otherwise handle this > overhead in a sane manner. Otherwise this at

Re: IPv6 and multicast listener discovery

2021-06-07 Thread Dale W. Carder
Are your links or hosts limited in some way or broadcast domains of some unreasonable size? Most of the competent switching or managed wireless products will snoop or otherwise handle this overhead in a sane manner. Otherwise this at best would seem to be an over-optimization. >From my

Re: IPv6 and multicast listener discovery

2021-06-04 Thread Baldur Norddahl
If you enable MLD snooping on your switches, the switch will block multicast going out irrelevant ports. The idea is to reduce broadcast in a broadcast domain. On Fri, Jun 4, 2021 at 11:03 PM William Herrin wrote: > Howdy, > > Question for those more versed in IPv6 than I: Is there any harm

IPv6 and multicast listener discovery

2021-06-04 Thread William Herrin
Howdy, Question for those more versed in IPv6 than I: Is there any harm from dropping ICMPv6 multicast listener discovery reports in a network which does NOT use any multicast routing (i.e. only uses multicast which stays within the local link). I see a LOT of idle node chatter in the form of