Re: Regarding FR Payload Compression

Hi Raghav,

Active is the default mode hence there is no option to configure it
explicitly...Also, passive mode of compression means that the packet
will be compressed only if it had a compressed header when it was
received..There is no source destionation concept in this ..If you
enable frame-relay ip tcp header-compression on both sides, outgoing
packets from both sides will be compressed..If you specify passive on
one end..outgoing packets from this end will only be compressed if the
incoming packets have compressed headers....Moreover you started the
query with a doubt on payload compression..I hope its a typo because
payload compression is different from header compression.

HTH
Ravi

On Wed, Jun 10, 2009 at 5:45 AM, Raghav
Bhargava<raghavbhargava12_at_gmail.com> wrote:
> Hi Experts,
> I have a doubt regarding FR payload compression technique. Here is the
> scenario:-
>
> R1--- FR (point-to-point) ---R2
>
> Now I have to configure TCP header compression for PVC from R1--- R2..
>
> Therefore the CLI on R1 is:-
>
> frame-relay ip tcp header-compression active.
>
> Now my questions are:-
>
> 1. When the question says compression should be from R1-R2. It means R1 is
> the source and R2 is the destination. Now if that is true , then this
> command " *frame-relay ip tcp header-compression active* " should go on R1
> .and *frame-relay ip tcp header-compression passive *should go on R2.
>
> Please advise if this is correct or not. Coz My Router R1 is not letting me
> use the keyword active . Below is the output for reference:-
>
> r1(config-subif)#frame-relay ip tcp header-compression acti
> r1(config-subif)#frame-relay ip tcp header-compression activ
> r1(config-subif)#frame-relay ip tcp header-compression ?
> passive Compress for destinations sending compressed headers
> <cr>
>
> --
> Warm Regards
> Raghav
>
>
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Received on Wed Jun 10 2009 - 06:05:05 ART