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When I try to ping some of the IP addresses I get "connect: No buffer space is available" error. Also when I check /var/log/messages, there are some errors like as following do you have any ideas about this problem? |
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There is a related thread here and a possible solution here. Basically this happens because the interface "neighbour" table fills up when too many different addresses connect to your server within a short interval. Increasing the table size and using more aggressive garbage collection for its contents resolves this issue. |
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