Change default arp cache size on nodes
Change default arp cache size on nodes

In OCP clusters with large numbers of routes (greater than the value of
net.ipv4.neigh.default.gc_thresh3, which is 1024 by default) the ARP
cache is not large enough to accommodate for all the entries needed by
the nodes running the router pods.

This change increases the cache size.

bug 1425388
https://bugzilla.redhat.com/show_bug.cgi?id=1425388

Signed-off-by: Phil Cameron <33383f83f86213d1b5b1ab82934768577b825301@redhat.com>

xiaoping378/openshift-docs,xiaoping378/openshift-docs,xiaoping378/openshift-docs