From: Nguyen Hoang Long (ng-hlong@hn.vnn.vn)
Date: Sat Jun 14 2003 - 02:30:51 GMT-3
Hi Jun Qian,
I think of 02 methods for RSVP configuration on Frame-relay interface, which
I prefer Method 1:
1/- use FRTS:
The document would be true if you use FRTS.
Pay attention at " If subinterfaces contain MORE THAN one data-link control
(DLC), the bandwidth required and the bandwidth reserved may differ."
That means it would be problem if 'minCIR' values are different on your
two DLCI (501, 502)
Example: minCIR of DLCI 501 = 256k
minCIR of DLCI 502 = 128k
With your command "ip rsvp bandwidth 200 20", it can reserve up to 200k on
DLCI 501, but can ONLY reserve up to 20k x 6 = 120k on DLCI 502
also, to make it work, you have to use several commands:
+ "fair-queue" in FR class,
+ "frame-relay fragment" in FR class
+ and make Tc <= 10ms if Voice traffic.
2/- Not use FRTS:
In your config, I see you did not use FRTS, so the document does not apply
to your case.
To make it work, you also have to enable WFQ.
Any comments are highly appreciated.
Thanks,
Long
----- Original Message -----
From: "Jun Qian" <johnjunqian@yahoo.com>
To: <ccielab@groupstudy.com>
Sent: Saturday, June 14, 2003 9:22 AM
Subject: RSVP and Frame-relay
> I reading Doc.on CD. And I got one question about RSVP
> and Frame-reley.
> In CD.
> "Frame Relay Internetwork Considerations
> Reservations are made for an interface or
> subinterface. If subinterfaces contain more than one
> data-link control (DLC), the bandwidth required and
> the bandwidth reserved may differ. Therefore, RSVP
> subinterfaces of Frame Relay interfaces must contain
> exactly one DLC to operate correctly.
> "
>
> If subinterface is multipoint and there are two
> DLC(501;502) on sub-if,
> How RSVP must contain exactly one DLC?
> I only know "ip rsvp bandwidth 200 20" on sub-if. But
> I don't know how split it for per DLC.
> For example
> interface serial 0
> no ip add
> encapsulation frame-relay
> no frame-relay
> ip rsvp bandwidth 200 20
>
> interface serial 0.1
> ip address 148.1.125.5 255.255.255.0
> no frame-relay inverse-arp
> frame-relay map ip 148.1.125.2 502 broadcast
> frame-relay map ip 148.1.125.1 501 broadcast
> ip rsvp bandwidth 200 20
>
>
> Thanks!
> John
>
>
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