Satellite latency

Wed Mar 6 02:15:16 UTC 2002

On Tuesday, 2002/03/05 at 08:42 ZE2, Hank Nussbacher <hank at att.net.il> 
wrote:
> New 12.2(8)T feature in Cisco IOS called TCP Windows Scaling:
> 
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/12
> 2t8/tcpwslfn.htm
> 
> Specifically made for satellite networks:
> ip tcp window-size 750000

I don't understand the benefit of this on a router.  Except for 
connections where the router itself is an endpoint (telnet to the router, 
for example), the router has no need to even be aware of window size.

Perhaps the router's window size comes into play if the router is 
performing advanced functions such as NAT or IPSEC?

Tony Rall