[openib-general] Connectivity

[Sean Hubbell]

Hal Rosenstock wrote:

>On Fri, 2005-09-02 at 08:38, Sean Hubbell wrote:
>  
>
>>I looked at the arp table and the ib0 device is not listed. The state is 
>>marked as ACTIVE for port 1. Does this mean that a connection to opensm 
>>has been established and not necessarily that this interface has been 
>>enabled for use (meaning the connection to opensm with over eth0 instead 
>>of ib0)?
>>    
>>
>
>If there are no ARP entries on an ib<n> interface, I don't think it
>would show up there. If you ping an explicit address on that ib<n>
>subnet, you would see something like:
>? (192.168.0.2) at <incomplete> on ib0
>
>  
>
Yes, sorry I should have mentioned I pinged the address before I ran arp 
and received a reply.

>I presume you've modprobe'd ib_ipoib and ifconfig'd ib<n> to get it up
>and running (ifconfig -a shows ib<n> in an UP state).
>  
>
Yes, I have checked the modules for each node and all are there. This 
was actually the first thing I looked at as I thought that IPoIB was not 
there.

Yes, each ib0 is up supporting multicast.

Sean