From: jfaure@sztele.com
Date: Mon Apr 14 2003 - 06:36:15 GMT-3
Hi all:
I've some doubts about the Frame Relay Traffic Shaping operation. I've read
a cisco doc named "Configuring Frame Relay Traffic Shaping" and I don't
understand very well how the router "shapes" and drops packets when it
receives BECN's events.
If you see this doc, it seems that if any becn is received, the traffic
rate is decreased by 25 percent. Then the system continues to drop with
each BECN until you reach MINCIR, where it stops. And then, once the
traffic rate has decreased, it must allow 16 time intervals of receiving no
Becn before starting to increase traffic again.
My question is: What about the packets transmitted and marked with DE bit?
When and how the router starts to set the DE bit? Do you must configure the
router with "frame-relay de-list" and "frame-relay de-group" to achieve
this DE marking? Or the router can mark with DE without explicitily
specifiying this and then these commands are only used to specify witch
type of traffic do you prefer be maked first?
Any help would be apreciated.
Regards
Juan Faure Ferrer
email: jfaure@sztele.com
Lmnea de Negocio de Telematica y CC
Ingeniero de Integracisn de Redes y Sistemas
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