On Thu, 2007-04-05 at 14:14 +0200, Steffen Grunewald wrote:
> Hi,
> 
> for curiosity's sake (and because this 19.2k link is annoyingly slow) I'd
> like to know: What's exactly in the SOL payload? 

This can be found in 15.9 of the IPMI spec.  For the most part, fields
related to sequence numbers, accepted character counts, ack/nack-ing,
flags for serial activity (for example, a flag for a serial break), and
the character data itself.

> Will changing the speed to 115.2k speed up the display on the client side? 

Upping it may help, but it depends on what BMC you have.  For many BMCs
I've seen, the bottle neck is actually the BMC.  Many BMCs just can't
keep up, especially when AES encryption (cipher suite 3 in ipmitool) is
used.

> Will speeds other than 19.2k even work with a SuperMicro IPMI card 
> (0x15d9/0x1134)? Boards are H8DAR-T and H8SSL-i... 

I'm not 100% sure what these boards/cards are.  The SIMSO cards that
Supermicro has out for newer motherboards have a faster BMC.  So when
setting the serial baud to 115K, the SOL connection looks quite good,
even with AES encryption.  My measurements showed something equivalent
to a (hypothetical) 75K-80K baud serial connection.

Hope some of this is useful,
Al

> Cheers,
>  Steffen
> 
> 
-- 
Albert Chu
[EMAIL PROTECTED]
925-422-5311
Computer Scientist
High Performance Systems Division
Lawrence Livermore National Laboratory

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