On Sat, 9 Mar 2013 18:33:58 +0000 Dietmar Maurer <diet...@proxmox.com> wrote:
> > So I think we talk about switch bugs here, not normal behavior. > I am leaning towards the same conclusion since I have never seen those queries cause any problems here. @alexandre: What precise Cisco switch do you see the problems with? What IOS version? Are there any firmware upgrade available? According to Cisco the queries should not cause any problems but maybe this is what causes your problems: "Multicast routers send host-query messages periodically to refresh their knowledge of memberships present on their networks. If, after some number of queries, the Cisco IOS software discovers that no local hosts are members of a multicast group, the software stops forwarding onto the local network multicast packets from remote origins for that group and sends a prune message upstream toward the source." http://www.cisco.com/en/US/docs/ios/12_2/ip/configuration/guide/1cfmulti.html#wp1067822 -- Hilsen/Regards Michael Rasmussen Get my public GnuPG keys: michael <at> rasmussen <dot> cc http://pgp.mit.edu:11371/pks/lookup?op=get&search=0xD3C9A00E mir <at> datanom <dot> net http://pgp.mit.edu:11371/pks/lookup?op=get&search=0xE501F51C mir <at> miras <dot> org http://pgp.mit.edu:11371/pks/lookup?op=get&search=0xE3E80917 -------------------------------------------------------------- The moving cursor writes, and having written, blinks on.
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