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Igor Pinchevskiy
Guest
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 Posted: Fri Aug 10, 2007 12:49 am Post subject: Compression to increase wan performance |
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Hello,
I'm doing research if compression trough a router would improve
performance on T1 point to point wan links. We are using 2600 series
routers, any info, advice, or articles would be greatly appreciated!
Thank you in advance,
Igor Pinchevskiy |
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Peter
Guest
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| Posted: Fri Aug 10, 2007 12:49 am Post subject: Re: Compression to increase wan performance |
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Hi Igor,
| Quote: | I'm doing research if compression trough a router would improve
performance on T1 point to point wan links. We are using 2600 series
routers, any info, advice, or articles would be greatly appreciated!
|
Unfortunately this type of question fits into one of those "it
depends" type scenarios.....;-( The areas you need to consider if
compression would help are -
- Can the other end of your WAN link also handle
compression/de-compression (both ends need to do it).
- The platform performance (is it currently lightly/heavily loaded).
A 2600 would not have a lot of CPU spare if handling a T1 with a
moderate amount of ACL's being processed. If the link is already
queing a moderate amount of traffic then I would not consider it
without some form of offload for compression, but then consider the
cost of this.
- Also take into account the type of traffic you are passing on the
link. EG VPN traffic is encrypted and would not compress well (if at
all), however plain text or HTML with buckets of embeded white space
could provide great returns. Also consider that it takes time to
comress/uncompress so there is an overhead for doing this.
Overall we abandoned using compression on our WAN around 2000, it was
no longer viable, but then your situation could still benefit from
it..
Cheers.....................pk.
--
Peter from Auckland. |
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Igor Pinchevskiy
Guest
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| Posted: Tue Aug 14, 2007 1:15 am Post subject: Re: Compression to increase wan performance |
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Thank you for all your input, it looks like I need to do a lot more
reading on this subject. |
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