RE: traffic shaping on a serial line

From: Lykourgiotis Paraskevas (ParaskevasL@xxxxxxxxxxxx)
Date: Wed Jan 10 2001 - 15:04:47 GMT-3


   
Ann,

What about using input and output CAR on R3?
This way shouldn't you force telnet (TCP) to back-off due to the windowing
mechanism?
Objections?

-----Original Message-----
From: Connary, Julie Ann [mailto:jconnary@cisco.com]
Sent: Wednesday, January 10, 2001 3:53 PM
To: ccielab@groupstudy.com
Subject: traffic shaping on a serial line

Hi,

if you have the following:

R1 --------serial at 64K ---------------R3 --------Token Ring

You want to limit the users on the token ring from telnet using over 32K of
the bandwidth,

So I know on R3 you would use GTS to limit telnet to 32K.But what about the
reverse traffic coming from R1?

Don't you have to traffic shape there too? The fatkid labs only shape on
one side of the link - the R3 side.
Seems to me that in telnet you issue a command and get a screenfull of data
- so more traffic would
be coming back and you would want to also limit on the R1 side. Thoughts?

I guess you would assume that the telnets are ONLY sourced from the
TokenRing - so
your access-list on R1 would have to be:

access-list 101 permit tcp any eq telnet any

vs. the access-list on R3:

access-list 101 permit tcp any any eq telnet.

Julie Ann

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