[c-nsp] Adjust mss on 6500

[Tim Stevenson]

That is the plan.
Tim

At 01:40 PM 10/18/2006 +0300, Tassos Chatzithomaoglou asserted:


>Tim Stevenson wrote on 16/10/2006 10:25 ìì:
>>Adjust mss requires that the CPU see TCP SYN 
>>packets so the adjustment can be made during 
>>the handshake. As such, it requires h/w 
>>programming of the ACL TCAM to do the 
>>redirection appropriately. The software support 
>>to do this is not in any shipping s/w for the 
>>6500 today, it is roadmapped for Q1CY07. (BTW, 
>>it is avail now in SRA 7600 code).
>
>So, it will be in 12.2(33)SXH?
>
>Tassos
>
>>Of course, any time a feature brings the CPU 
>>into the fwding path, I urge you to understand the implications & use caution.
>>Tim
>>At 07:09 PM 10/16/2006 +0200, fredrik.jacobsson at seb.se commented:
>>>Hi all!
>>>
>>>We have a couple of 6500's doing alot of encrypted GRE-tunnels.
>>>IOS is 12.2(18)SXD7a
>>>
>>>I'm trying to set this command on a tunnel interface:
>>>ip tcp adjust-mss 1400
>>>
>>>But:
>>>XXXXXXXX(config-if)#ip tcp adjust-mss 1400
>>>                            ^
>>>% Invalid input detected at '^' marker.
>>>
>>>XXXXXXXX(config-if)#ip tcp ?
>>>   compression-connections  Maximum number of compressed connections
>>>   header-compression       Enable TCP header compression
>>>
>>>
>>>Is there another way to do that?
>>>(Can't understand why it doesn't have the ajust-mss feature)
>>>
>>>Best regards
>>>/Fredrik Jacobsson
>>>
>>>_______________________________________________
>>>cisco-nsp mailing list  cisco-nsp at puck.nether.net
>>>https://puck.nether.net/mailman/listinfo/cisco-nsp
>>>archive at http://puck.nether.net/pipermail/cisco-nsp/
>>
>>Tim Stevenson, tstevens at cisco.com
>>Routing & Switching CCIE #5561
>>Technical Marketing Engineer, Catalyst 6500
>>Cisco Systems, http://www.cisco.com
>>IP Phone: 408-526-6759
>>********************************************************
>>The contents of this message may be *Cisco Confidential*
>>and are intended for the specified recipients only.
>>_______________________________________________
>>cisco-nsp mailing list  cisco-nsp at puck.nether.net
>>https://puck.nether.net/mailman/listinfo/cisco-nsp
>>archive at http://puck.nether.net/pipermail/cisco-nsp/



Tim Stevenson, tstevens at cisco.com
Routing & Switching CCIE #5561
Technical Marketing Engineer, Catalyst 6500
Cisco Systems, http://www.cisco.com
IP Phone: 408-526-6759
********************************************************
The contents of this message may be *Cisco Confidential*
and are intended for the specified recipients only.