From: Danshtr (danshtr@gmail.com)
Date: Sun Mar 20 2005 - 06:21:57 GMT-3
I think that thos configs are for the framraly switch.
From the same kink:
<qoute>
Restrictions
b"The information in this document applies to Frame Relay Traffic
Policing for switched PVCs only Traffic Policing does not apply to
terminated PVCs. Rate limiting of traffic on terminated PVCs is done
by other mechanisms such as CAR and/or PIRC.
</qoute>
On Sun, 20 Mar 2005 10:14:47 +0100, Alexander Arsenyev (GU/ETL)
<alexander.arsenyev@ericsson.com> wrote:
> Frame Relay Traffic Policing sets DE bit on all traffic above Bc:
> http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s17/frtp_gsr.htm
>
> <quote>
> The following actions are taken, on a per-packet, per switched PVC basis, by Frame Relay Traffic Policing:
>
> --------------------------------------------------------------------------------
>
> Step 1 If the Discard Eligible (DE) bit is set in the packet when it arrives, the packet is automatically treated
> as excess: the Bc test in Step 2 is skipped and the packet proceeds to Step 3.
>
> Step 2 If the DE bit is not set when the packet arrives, and the byte count in the packet is within Bc for the past Tc,
> then the packet is allowed through. If the packet is not within Bc for the past Tc, the packet proceeds to Step 3.
>
> Step 3 If the number of bytes in the packet falls within Be+Bc for the past Tc, the DE bit in the header is set
> (if it is not already set) and the packet is allowed through. If the packet does not fall within Be+Bc for the past Tc,
> the packet is dropped.
>
> </quote>
>
> HTH,
> Cheers
> Alex
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]
> Sent: 20 March 2005 03:07
> To: ccielab@groupstudy.com
> Subject: QOS question
>
> If for instance a question asks you to configure a router so that it sets the
> Frame relay DE bit for IP traffic when and only when there is congestion, how
> would one approach this question? I know you could use a frame relay DE
> list/Group but this would always set the DE bit for all packets classified in
> the list.
>
> Any ideas would be greatly appreciated.
>
> Ollie.
>
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-- Best regards, Dan
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