[openib-general] InfiniBand EndPort Liveness and Responsiveness

Hal Rosenstock halr at voltaire.com
Wed Jul 27 07:21:37 PDT 2005


On Wed, 2005-07-27 at 09:54, James Lentini wrote:
> Being able to debug connectivity problems at the IB level strikes me 
> as very useful. Perhaps some people expect to always use IPoIB on 
> their IB network, and therefore plan to use IP tools. Even in these 
> configurations, native IB protocols would be useful if IPoIB wasn't 
> working.

Right; IPoIB relies on more working (multicasting, etc.) than this
proposal does.

> It looks like you modeled the ECHO and TIMESTAMP formats after their 
> ICMP counterparts. 

Yes.

> The TIMESTAMP type appears to have been dropped from ICMPv6. Do you know why?

No but it sounds like it might be relevant. The only thing I saw were
some comments related to security and replay attacks. Not sure if that
was the reason it was eliminated from ICMPv6.

-- Hal







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