openssh unix dev - Apr 2012 - Max Packet Size in sshd server and negotiation with client

Hi,
   Forgive what might be a basic question.  In channel open processing the
server has a hardcoded maximum of 35000 bytes which corresponds to the
recommended value in RFC4253.  It appears that this is open to  negotiation, and
the RFC implies it might be desirable to support larger sizes in some channels. 
What determines what the absolute maximum is in openssh sshd?   Presumably no
client can negotiate a maximum that is larger than that advertised by the
server?    Thanks

Kurt Heberlein
Senior Staff Software Engineer
3PAR R&D
   HP Storage 
   www.hp.com

   (510) 668 9441 

    kurt dot w dot heberlein at-sign hp dot com