[openib-general] [PATCH] [AT} [TRIVIAL]: Fix typo in header file
Hal Rosenstock
halr at voltaire.com
Wed Jun 22 11:08:31 PDT 2005
On Wed, 2005-06-22 at 13:56, Roland Dreier wrote:
> Hal> The comment is not accurate. The description would be more
> Hal> accurate to say that it "forces" the use of one of the IP
> Hal> interfaces which share this source IP address (if a route
> Hal> exists to the destination). In the case of IPoIB, there is
> Hal> only one interface per IP address.
>
> Why do you think there's only one interface per IP address? For
> example, you can easily try the following:
>
> # modprobe ib_ipoib
> # ip addr add dev ib0 192.168.0.2/24
> # ip addr add dev ib1 192.168.0.2/24
> # ip addr show
> [...]
> 7: ib0: <BROADCAST,MULTICAST> mtu 2044 qdisc noop qlen 128
> link/[32] 00:02:04:04:fe:80:00:00:00:00:00:00:00:02:c9:01:07:fc:c7:11 brd 00:ff:ff:ff:ff:12:40:1b:ff:ff:00:00:00:00:00:00:ff:ff:ff:ff
> inet 192.168.0.2/24 scope global ib0
> 8: ib1: <BROADCAST,MULTICAST> mtu 2044 qdisc noop qlen 128
> link/[32] 00:02:04:05:fe:80:00:00:00:00:00:00:00:02:c9:01:07:fc:c7:12 brd 00:ff:ff:ff:ff:12:40:1b:ff:ff:00:00:00:00:00:00:ff:ff:ff:ff
> inet 192.168.0.2/24 scope global ib1
I was thinking of bonding rather than multihoming with the same address.
Aren't there operational issues when configured as you show above ?
-- Hal
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