Re: TCP Window Optiimization with LFN.

Upgrade your WAAS boxes ;)

*Cisco sales hat on*

CCIE # 23962 (SP)

Sent from my iPhone

On 16 Aug 2012, at 8:07 PM, JB Poplawski <jb.poplawski_at_gmail.com> wrote:

> Good afternoon,
>
> My token question out to the group as I await TAC.
>
> I have a network with Gb links between sites. Connected like such:
> Site A < 7ms > Site B < 71ms > Site C <9ms> Site D
>
> End to end latency between Site A and Site D is 69ms. My numbers above are
> the average given from CLI.
>
> I've been reading on LFNs (Long Fat Networks) and basically I need to
> optimize the TCP Window size (calculated to 8625KB).
>
> My question, where do I implement it?
> Site A and Site D? Or Site B and Site C?
>
> If I implement on Site B and Site C, how does that impact Site C to Site D,
> etc?
>
> Any ideas?
>
> We previously had MPLS connection with WAAS which optimized traffic. Now
> since we're running Gb, we removed WAAS (our WAAS boxes were only rated to
> 50Mbps).
>
> Any suggestions? Am I on the right path?
>
> Any help is greatly appreciated.
> JB
>
>
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Received on Thu Aug 16 2012 - 20:39:35 ART