There is am issue with older bnx2 kernel modules in rhel5. There is a kb article that explains how to disable MSIX or update the kernel. On Jul 13, 2011 8:38 AM, "brian irvin" <brian944us@xxxxxxxxx> wrote: > We are using bnx2 driver. We are getting outages when arp table fills up and unless we flush the table, network connectivity is an issue. > > more ifcfg-bond0 > DEVICE=bond0 > BONDING_OPTS="mode=1 miimon=500 primary=eth4" > > > Thanks > > Brian > > > --- On Tue, 7/12/11, Georgios Magklaras <georgios@xxxxxxxxxxxxx> wrote: > >> From: Georgios Magklaras <georgios@xxxxxxxxxxxxx> >> Subject: Re: Arp Cache issue >> To: "General Red Hat Linux discussion list" <redhat-list@xxxxxxxxxx> >> Date: Tuesday, July 12, 2011, 9:41 PM >> On 07/12/2011 09:46 PM, brian irvin >> wrote: >> > We have a RHEL 5 box which requires frequent flushing >> of arp cache to stay up and running and not create network >> bottlenecks. Anyone have these issues? we have quite a few >> servers and have never faced an issue before this one. I >> thought it might have to do with the switch but the network >> folks say the switch is clear. Any thoughts?? >> > >> > cat /proc/net/bonding/bond0 >> > Ethernet Channel Bonding Driver: v3.4.0 (October 7, >> 2008) >> > >> > Bonding Mode: fault-tolerance (active-backup) >> > Primary Slave: eth4 >> > Currently Active Slave: eth4 >> > MII Status: up >> > MII Polling Interval (ms): 500 >> > Up Delay (ms): 0 >> > Down Delay (ms): 0 >> > >> > Slave Interface: eth0 >> > MII Status: up >> > Link Failure Count: 0 >> > Permanent HW addr: 00:37:c9:38:e3:3b >> > >> > Slave Interface: eth4 >> > MII Status: up >> > Link Failure Count: 0 >> > Permanent HW addr: 00:11:17:4c:ee:22 >> > >> > >> > Thanks >> > >> > Brian. >> > >> >> Can you clarify a bit the staying up and running/bottleneck >> issue? What happens if you do not flush the ARP table in >> terms of what you see in the system and what do you see on >> the LAN side for the system? Also which Ethernet driver >> module you use in the system? >> >> I have seen issues with IP aliasing (not HA bonding) on >> very busy LANs, but long time ago, not on recent 5 releases. >> As far as I know, unless you use a load balancing mode >> bonding, the netwrk switch should not be tweaked. >> >> >> GM >> >> -- -- George Magklaras PhD >> RHCE no: 805008309135525 >> >> Senior Systems Engineer/IT Manager >> Biotek Center, University of Oslo >> EMBnet TMPC Chair >> >> http://folk.uio.no/georgios >> >> Tel: +47 22840535 >> >> -- redhat-list mailing list >> unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe >> https://www.redhat.com/mailman/listinfo/redhat-list >> > > -- > redhat-list mailing list > unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe > https://www.redhat.com/mailman/listinfo/redhat-list -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list
