[quagga-dev 8696] Re: No buffer space available

Eric S. Johnson esj at cs.fiu.edu
Mon Apr 11 20:06:19 BST 2011

joakim.tjernlund at transmode.se said:
> 2011/04/11 20:43:23 OSPF: can't setsockopt IP_ADD_MEMBERSHIP (fd 11,
> addr, ifindex 46, AllSPFRouters): No buffer space
> available; perhaps a kernel limit on # of multicast group
> memberships has been exceeded? 

it is a /proc variable. 

Below is what I use in /etc/sysctl.conf to up it.


# max number of multicast group memberships
# needs to be upped becuase of ospf/vrrp/etc
net.ipv4.igmp_max_memberships = 400

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