FRTS & CBWFQ issue

From: Toh Soon, Lim (tohsoon28@gmail.com)
Date: Sat Sep 29 2007 - 08:45:12 ART


Hi Group,

I have the following FRTS and CBWFQ config:

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
map-class frame-relay FRTS_R4
 frame-relay cir 256000
 service-policy output MYPOL
!
policy-map MYPOL
 class CITRIX
  bandwidth 12
 class WEBFTPIMAP-2
  bandwidth 10
 class NOTES
  bandwidth 15
 class XWIN
  bandwidth 10
 class VDO
  bandwidth 64
 class REALAUDIO
  bandwidth 25
 class IP-PREC
  bandwidth 12
 class MSEXCH-2
  bandwidth 40
 class NEWS
  bandwidth 15
 class class-default
  fair-queue
!
interface Serial0/0
 bandwidth 256
 ip address 136.10.24.4 255.255.255.248
 encapsulation frame-relay
 frame-relay map ip 136.10.24.2 401 broadcast
 no frame-relay inverse-arp
 max-reserved-bandwidth 100
!
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

When I applied the FR class to the serial interface, I received an error
message as follows:

R4(config)#int s 0/0
R4(config-if)#frame traffic-sh
R4(config-if)#frame class FRTS_R4
I/f Serial0/0 DLCI 401 class REALAUDIO requested bandwidth 25 (kbps),
available only 17 (kbps)

Adding the bandwidth up to class VDO gives 111 kbps. It seems the available
bandwidth of the interface is only 128 kbps (i.e. 111+17). Can anyone
explain why since my available bandwidth should be 256K (100% of 256K).

I'm only able to apply the class after I added "frame-relay mincir 256000"
to the map-class. Understand that default mincir is cir/2, in this case 128
kbps. Could my problem be due to this?

Confused.

Thank you.

B.Rgds,
Lim TS



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