[quagga-users 9320] Re: ospf, gre and igmp_max_memberships
rkeane24 at live.ie
Wed Jan 30 17:30:11 GMT 2008
Im afraid im not sure what you mean? What happens is that i get an error code return from the call to setsockopt() saying i am out of buffers once i hit a limit of approx 428 gre tunnels. OSPF works perfect on all of these. Its when i go above that number of tunnels that they do not seem to get added to the multicast group. I have read in previous threads that increasing igmp_max_memberships fixes this issue (which it does!) but only up until a point. If you increase igmp_max_memberships to something greater than say 428 it doesnt seem to have an impact. Its like i have hit some kind of limit beyind this.
Any ideas anyone???
> From: stratos3d at gmx.de
> To: rkeane24 at live.ie
> Date: Tue, 29 Jan 2008 19:38:03 +0100
> CC: quagga-users at lists.quagga.net
> Subject: [quagga-users 9319] Re: ospf, gre and igmp_max_memberships
> maybe the
> virtual link command can help
> cu stratos
> Am Dienstag, den 29.01.2008, 11:11 +0000 schrieb Rilo Keane:
> > Hi,
> > I have run into a problem using a suse 10 linux machine, ospfd and
> > GRE. On my server i have 500 GRE tunnels created and want to run OSPF
> > on every tunnel. As previously suggested in other threads i increased
> > my igmp_max_memberships to 1000 so that each tunnel is added to the
> > multicast group but when i run ospfd i get the following error in my
> > logs:
> > "cant setsockopt IP_ADD_MEMBERSHIP , no buffer space available etc etc
> > etc......."
> > On further examination i notice that i seem to have hit some kind of
> > limit on igmp_max_memberships. It looks like i can add up to approx
> > 428 interfaces (tgre tunnels) and no more! Incrementing
> > igmp_max_memberships beyond this seems to have no effect.
> > Has anyone experienced this before or could anyone maybe explain the
> > reasons behind this??
> > BTW i am using Quagga-0.99.7
> > Thanks.
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