From: Victor Cappuccio (vcappuccio@desca.com)
Date: Thu Jan 11 2007 - 10:20:11 ART
Hmmm, well MQC guaranties you that in the locally in the router (PHB),
but what about the frame-relay switch when it sees congestion?
The frame-relay switch only sees L2 packets (Frame-relay bits in detail)
he does not care if you are transmitting Routing, Voice, Video or
Scavenger
Now you are correct about the slow down, but an adaptive shaper can be
compared with legacy Frame-relay Traffic Shaping (FRTS), now the only
difference is that you can do classification with the new style, and
with the old style you just classify all traffic that the router puts ou
on that interface outbound
HTH
Victor.-
________________________________
From: Raj Bansal [mailto:ccie_study06@yahoo.com]
Sent: Thursday, January 11, 2007 12:26 AM
To: Victor Cappuccio; Ricky MK Au; ccielab@groupstudy.com
Subject: RE: Shaping and priority queue
It says to slow down, this is a queuing exercise, hence FR Traffic
shaping.
so by default you can reserve 75 of interface bw. Reamining 25 is for
protocols. So..why are we worried about protecting the protocols. Isn't
that protected by default?
Victor Cappuccio <vcappuccio@desca.com> wrote:
Well things get quite funny when you talk about the DE-LIST and
the
application of that "DE-ACL" to the VC
You must deny ospf traffic just to let know the IOS that it
should not
stamp the DE Color in the frame-relay packet when it is going
out of the
interface, you can see that using show frame-relay PVC XXX and
look at
the DE in combination with the ACL applied in the DE-GR Command
Now in case of congestion, the FRSW would prefer to drop the DE
Colored
Packet as you probably know.
Also if the question indicates that I need to slow down traffic,
I would
probably be using an adaptive shaper
HTH
Victor.-
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On
Behalf Of
Ricky MK Au
Sent: Tuesday, January 09, 2007 3:06 AM
To: ccielab@groupstudy.com
Subject: Shaping and priority queue
Hi all,
One of the question ask us to configure the following QOS in a
frame-relay
interface. The question is " configure the network so that
whenever they
encounter a congestion, it will slow down the traffic to not
greater
than
128Kbps and ensure that no routing traffic is dropped. The
router is
only
running OSPF routing protocol.
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