Help Help!!! CBWFQ

From: Hunt Lee (huntl@webcentral.com.au)
Date: Mon Jun 23 2003 - 02:59:47 GMT-3


Hi there,

I have a problem at work, and would be greatly appreciated if anybody could
help ;)

I have an office router and I want to prioritize Voice traffic on it.

I want 10Mb for voice and the rest of data....

Since they are fastethernet interfaces, so i have 100MB in total.

 class-map match-any platinum
  match access-group 111
  match ip rtp 16384 16383
 class-map match-any nonvoice
  match access-group 112
!
!
 policy-map gw1wic-out
  class platinum
   priority 10000000
  class nonvoice
   priority 90000000
 policy-map parent-gwlwic
  class class-default
   shape average 100000000
   service-policy gw1wic-out

access-list 111 permit udp any any precedence critical
access-list 111 deny ip any any

access-list 112 permit ip any any

gw1.wic#sh ip int brief
Interface IP-Address OK? Method Status
Protocol
FastEthernet0/0 203.x.x.x YES NVRAM up
up
FastEthernet0/1 203.x.x.x YES NVRAM up
up
FastEthernet1/0 172.29.2.254 YES NVRAM up
up
FastEthernet1/1 unassigned YES NVRAM up
up
FastEthernet1/1.501 192.168.20.30 YES NVRAM up
up
FastEthernet1/1.502 192.168.20.94 YES NVRAM up
up
FastEthernet1/1.503 192.168.20.158 YES NVRAM up
up
FastEthernet1/1.504 192.168.20.190 YES NVRAM up
up
FastEthernet1/1.506 192.168.20.254 YES NVRAM up
up
FastEthernet1/1.507 192.168.21.62 YES NVRAM up
up
FastEthernet1/1.508 192.168.21.190 YES NVRAM up
up
FastEthernet1/1.509 192.168.20.110 YES NVRAM up
up
FastEthernet1/1.510 192.168.21.126 YES NVRAM up
up
FastEthernet1/1.511 192.168.23.62 YES TFTP up
up
FastEthernet1/1.550 192.168.21.206 YES NVRAM up
up
FastEthernet1/1.551 192.168.21.238 YES NVRAM up
up

My question are:-

1) Can WRED works with CBWFQ?

2) Since my interfaces are fasteth 100mb, does it makes sense to have
priority packets like that?

10000000 - for 10mb voice
90000000 - for 90mb data

3) And I realized that I have to use "shaping" for CBWFQ on
sub-interface... what value should I put if the link is 100mb?

Would this work?

   shape average 100000000 (for full 100mbps)

OR

If I just apply the CBWFQ to the main interfaces rather than sub-interfaces,
would it work?

Thanks in advance,

Best Regards,
Hunt



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