[openib-general] Fwd: IPoIB Multicast

[Michael S. Tsirkin]

Subject: IPoIB Multicast
Date: Thu, 14 Sep 2006 17:08:55 +0300
From: "Eitan Zahavi" <eitan at mellanox.co.il>
> 
> Quoting the <draft-ietf-ipoib-ip-over-infiniband-09.txt>              
>     
>     A node joining an IP multicast group must first construct a MGID
>     according to the rule described in section 4 above. Once the correct
>     MGID is calculated, the node must call the SA of the outbound link
>     to attempt a "FullMember" join of the IB multicast group
>     corresponding to the MGID. If the IB multicast group doesn't already
>     exist, one must be created first with the IPoIB link MTU.  The MGID
>     MUST use the same P_Key, Q_Key, SL, MTU and HopLimit as those used
>     in the broadcast-GID. For the rest of attributes too, the values
>     used in the broadcast-GID SHOULD be used.

Hmm, IPoIB does not seem to copy anything except the pkey.
Looks like a compliance issue.

Specifically, I'm not sure what "other attributes" are, but I think
this should include the static rate. Right?

-- 
MST