On 11/09/2012 09:26 PM, Zama Ques wrote: > Hi All, > > Need help on resolving a issue related to implementing High Availability at network level . I understand that this is not the right forum to ask this question , but since it is related to HA and Linux , I am asking here and I feel somebody here will have answer to the issues I am facing . > > I am trying to implement Ethernet Bonding , Both the interface in my server are connected to two different network switches . > > My configuration is as follows: > > ======== > # cat /proc/net/bonding/bond0 > > Ethernet Channel Bonding Driver: v3.6.0 (September 26, 2009) > > Bonding Mode: adaptive load balancing Primary Slave: None Currently > Active Slave: eth0 MII Status: up MII Polling Interval (ms): 0 Up Delay > (ms): 0 Down Delay (ms): 0 > > Slave Interface: eth0 MII Status: up Speed: 1000 Mbps Duplex: full Link > Failure Count: 0 Permanent HW addr: e4:e1:5b:d0:11:10 Slave queue ID: 0 > > Slave Interface: eth1 MII Status: up Speed: 1000 Mbps Duplex: full Link > Failure Count: 0 Permanent HW addr: e4:e1:5b:d0:11:14 Slave queue ID: 0 > ------------ > # cat /sys/class/net/bond0/bonding/mode > > balance-alb 6 > > > # cat /sys/class/net/bond0/bonding/miimon > 0 > > ============ > > > The issue for me is that I am seeing packet loss after configuring bonding . Tried connecting both the interface to the same switch , but still seeing the packet loss . Also , tried changing miimon value to 100 , but still seeing the packet loss. > > What I am missing in the configuration ? Any help will be highly appreciated in resolving the problem . > > > > Thanks > Zaman You didn't share any details on your configuration, but I will assume you are using corosync. The only supported bonding mode is Active/Passive (mode=1). I've personally tried all modes, out of curiosity, and all had problems. The short of it is that if you need more that 1 gbit of performance, buy faster cards. If you are interested in what I use, it's documented here: https://alteeve.ca/w/2-Node_Red_Hat_KVM_Cluster_Tutorial#Network I've used this setup in several production clusters and have tested failure are recovery extensively. It's proven very stable. :) -- Digimer Papers and Projects: https://alteeve.ca/w/ What if the cure for cancer is trapped in the mind of a person without access to education? -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster
