WAN performance

Nov 27, 2006 2 Replies
S
WAN performance open original image

A company that I work for is having some WAN performance issues. We have some branches that respond with 25 - 70 ms response time they are around 150 to max 200 miles in distance. It seems as though the performance issues follow the slow ping response times.



The ISP recently switched over to a different frame-relay switch for the DS-3 coneection we have. In this switch over we upgraded the bandwidth. Now we are having performance issues. The branches are much slower AT TIMES. Whenever we transfer a file to the branch everything else dies and slows way down.



Any advice on how to troubleshoot this and find where the issue is would be appreciated. The ISP is looking into it but have not came to any conclusions.



Thanks



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Hi Troy,

You may wish to investigate Cisco's Using Test TCP (TTCP) to Test Throughput:

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Hope this helps.

Brad Reese

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A

Hello, snipped-for-privacy@gmail.com! You wrote on 27 Nov 2006 11:10:48 -0800:

s> A company that I work for is having some WAN performance issues. s> We have some branches that respond with 25 - 70 ms response time s> they are around 150 to max 200 miles in distance. It seems as s> though the performance issues follow the slow ping response times.

s> The ISP recently switched over to a different frame-relay switch s> for the DS-3 coneection we have. In this switch over we upgraded s> the bandwidth. Now we are having performance issues. The branches s> are much slower AT TIMES. Whenever we transfer a file to the s> branch everything else dies and slows way down.

s> Any advice on how to troubleshoot this and find where the issue is s> would be appreciated. The ISP is looking into it but have not came s> to any conclusions.

Completely wild guess - you don't have FR shaping configured on your PVCs at hub site and/or you are using FIFO queueing. Correct?

With best regards, Andrey.

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