You might check the number of MAC addresses it sees (sh mac)... if there is a device going insane somewhere, it could exhaust the mac forwarding DB and cause strange behavior.
sh default values | inc mac SSH@mlx4#sh default values | inc mac sys log buffers:50 mac age time:300 sec telnet sessions:5 mac 32768 1048576 32768 32768 32768 Yes vpls-mac 2048 262144 2048 2048 2048 Yes SSH@mlx4# Do you have spanning tree running on this interface? I'm assuming these interfaces are in the default VRF, but if not it opens up a whole world of other possibilities. You could also check the TM log, although you would have to open a ticket to find out what any of it meant: sh tm log On Wed, Dec 16, 2015 at 10:44 AM, Tudor Capatina via foundry-nsp <[email protected]> wrote: > Hello all, > > on a brocade mlx-4 running IronWare : Version 5.4.0fT163, following a crash > (was doing a no ip route under a ip vrf and the box rebooted itself), I am > facing a weird problem. > > On a 10G interface i have several customers, each connected in a vlan, with a > vlan interface and a /30 used for the connection. All were working ok before > the crash. Now on some of them i get the following behaviour: i receive a > mac-address all the time, at times there is an arp entry, after some time it > is gone, later it works again (sometime after a cpe reboot, sometime it just > works). > > It sounded to me like a cache or an arp limit problem but: > > sh ip cache > Total IP and IPVPN Cache Entry Usage on LPs: > Module Host Network Free Total > 1 3745 361450 159093 524288 > 2 4132 361450 158706 524288 > 3 4996 361450 157842 524288 > 4 4884 361450 157954 524288 > > > respectively: > #sh default values | i arp > ip arp age:10 min bootp relay max hops:4 ip ttl:64 hops > ip-arp 8192 65536 8192 8192 8192 > No > > while my arp usage is of 2k (as seen by show arp) > > Any ideas what i could look at or what might cause this? Logs do not mention > anything relevant. > > Thanks a lot, > Tudor > _______________________________________________ > foundry-nsp mailing list > [email protected] > http://puck.nether.net/mailman/listinfo/foundry-nsp _______________________________________________ foundry-nsp mailing list [email protected] http://puck.nether.net/mailman/listinfo/foundry-nsp
