From: Sumeet <Sumeet.Lahorani-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
To: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: gratuitous arps lost during IB switch failure
Date: Thu, 30 Sep 2010 23:23:40 +0000 (UTC) [thread overview]
Message-ID: <loom.20101001T010729-594@post.gmane.org> (raw)
In-Reply-To: 4C9942F3.5090206@oracle.com
It turns out that this problem was being caused because we had multiple IPs
configured on the bonded infiniband interface. It appears that grat. arps are
being sent out for only one of those IPs.
For example, if we configure the bonded interfaces as below, and we trigger a
failover, we only see grat arps go out for the bond0:1 IP. Can the bonding
driver be fixed to send out grat arps for both these IPs?
# cat ifcfg-bond0
DEVICE=bond0
USERCTL=no
BOOTPROTO=none
ONBOOT=yes
IPADDR=192.168.50.118
NETMASK=255.255.254.0
NETWORK=192.168.50.0
BROADCAST=192.168.51.255
BONDING_OPTS="mode=active-backup miimon=100 downdelay=5000 updelay=5000"
MTU=65520
# cat ifcfg-bond0:1
DEVICE=bond0:1
USERCTL=no
BOOTPROTO=none
ONBOOT=yes
IPADDR=192.169.50.118
NETMASK=255.255.254.0
NETWORK=192.169.50.0
BROADCAST=192.169.51.255
BONDING_OPTS="mode=active-backup miimon=100 downdelay=5000 updelay=5000"
MTU=65520
- Sumeet
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next prev parent reply other threads:[~2010-09-30 23:23 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-21 23:42 gratuitous arps lost during IB switch failure Sumeet Lahorani
2010-09-30 23:23 ` Sumeet [this message]
[not found] ` <loom.20101001T010729-594-eS7Uydv5nfjZ+VzJOa5vwg@public.gmane.org>
2010-10-02 20:17 ` Or Gerlitz
[not found] ` <AANLkTinwGJq-aRM43ct9_1PrUCkn7QMecPczPpEyD2pQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-10-02 20:19 ` Or Gerlitz
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