From: Justin Menga (Justin.Menga@xxxxxxxxxxxxxxxxxx)
Date: Tue Nov 07 2000 - 22:40:47 GMT-3
Regarding Q1:
The Group # is a priority-list you have configured. You probably know that
priority queueing uses 4 queues - high, medium, normal, low. Via
priority-lists you assign traffic types to each queue. When you use the
priority-dlci-group command, you are associating each queue (and therefore
your configured traffic types for each queue) to a DLCI.
Thus it is a straight QUEUE to DLCI mapping.
e.g.
int s0
frame-relay priority-dlci-group 1 101 102 103 104
priority-list 1 protocol ip high
priority-list 1 protocol ipx medium
priority-list 1 default low
This would put ip traffic out DLCI 101, ipx traffic out 102 and everything
else out DLCI 104. Obviously your network design needs to reflect this, as
does the agreements with SP on the DLCI CIR/PIR etc....
Regards,
Justin Menga MCSE+I CCNP CCSE ASE
WAN Specialist
Computerland New Zealand
PO Box 3631, Auckland
DDI: (+64) 9 360 4864 Mobile: (+64) 25 349 599
mailto: justin.menga@computerland.co.nz
-----Original Message-----
From: Jack Heney [mailto:jheneyccie@hotmail.com]
Sent: Wednesday, 8 November 2000 10:51 a.m.
To: ccielab@groupstudy.com
Subject: Frame-relay traffic-shaping
Question about FRTS (actually 2 questions):
Q1:
How is the "frame-relay priority-dlci-group" command used? CCO does a
horrible job explaining it....The full syntax is "frame-relay
priority-dlci-group {group #} {high dlci} {medium dlci} etc." Is the group
number that is referenced a regular old priority-list?
Q2:
>From CCO----
Before you configure the DLCI priority levels, complete the following tasks:
Define a global priority list.
Enable Frame Relay encapsulation, as described earlier in this chapter.
Define static or dynamic address mapping, as described earlier in this
chapter.
Make sure that you define each of the DLCIs to which you intend to apply
levels. You can associate priority-level DLCIs with subinterfaces.
Configure ELMI, as described earlier in this chapter.
Why do you need to configure ELMI? According to CCO, ELMI is enabled by
using "frame-relay qos-autosense" which allows the router to dynamically
learn QOS traffic rates from the switch. If I want to manually configure
all the trafiic rates in my map-class, why do I need ELMI for
priority-dlci-group?
Okay, I lied...Writing all of this made me come up with a third question.
Does anybody know how to configure the frame-relay switch to pass this info
in ELMI? CCO doesn't even remotely mention it.
Thanks,
Jack
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