[cisco-nas] high cpu load on LNS

[Anastassios Chatzithomaoglou]

Dennis Peng wrote:

> Tassos Chatzithomaoglou [achatz at forthnet.gr] wrote:
> 
>>After reading "High CPU Utilization on Cisco Routers Used as L2TP 
>>Termination Points"
>>http://www.cisco.com/warp/customer/794/l2tp_highcpu.html on CCO, i still 
>>have one question:
> 
> 
> Please ignore this doc. Read this one instead:
> 
> http://www.cisco.com/en/US/tech/tk801/tk703/technologies_tech_note09186a0080094c4f.shtml
> 
> 
>>If i lower the MTU of the LACs (as the document says), will it affect 
>>normal users (no vpdn ones) too? If yes, in what way?
> 
> 
> Changing the MTU on the vtemplate will modify the MRU the LAC
> advertises to the LAC. However, most clients will completely ignore
> the MRU that is negotiated. For the ones that do (WinXP is one such
> client), it will decrease the MTU of the client to match the MRU of
> the LAC.
> 

After reading the above doc, i'm still confused about what would be the best solution that 
will work with EVERYTHING. Is it "TCP MSS"?


> Dennis
> 
> 
>>-- 
>>***********************************
>>   Chatzithomaoglou Anastasios
>>Network Design & Operations Center
>>          FORTHnet S.A.
>>      <achatz at forthnet.gr>
>>***********************************
>>
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>>cisco-nas mailing list
>>cisco-nas at puck.nether.net
>>http://puck.nether.net/mailman/listinfo/cisco-nas
> 
> 

-- 
***********************************
    Chatzithomaoglou Anastasios
Network Design & Operations Center
           FORTHnet S.A.
       <achatz at forthnet.gr>
***********************************