From: Mark Rushby (mark@tisolutions.biz)
Date: Wed Mar 31 2004 - 05:03:28 GMT-3
Hi Group
I have checked the archives and found some useful info which I have used
to come to the following solution. I have lab'd my solutions up and
tested it as much as possible with the kit I have.
I have the following situation.
site A leased 2048kbps siteB
2610 ----------------------------------------------------2600
| |
| |
3com 4400 3com 4400
The company are going to introduce VOIP between the 2 sites. The 3com
switches will be vlan with a voice and data vlans. I am going to
implement QOS over the leased line for the voice traffic. I have lab'd
the following solution up and it seems to work ok. Bearing in mind I
have no VOIP capabilities (advertising capabilities with my neighbour
:-) ) it is hard to fully test. I have generated traffic on the port
range 16384 20000 and all seems to be ok.
This my intended solutions:
Router(config)# access-list 102 permit udp host 10.10.10.10 host
10.10.10.20 range 16384 20000
Router(config)# class-map voice
Router(config-cmap)# match access-group 102
Router(config)# policy-map policy1
Router(config-pmap)# class voice
Router(config-pmap-c)# priority 50
Router(config-pmap)# class class-default
Router(config-pmap-c)# fair-queue
So is it better to use a set bandwidth or a percentage? And is there a
calculation to calculate the required bandwidth for x amount of users?
The second issue i have is the current ios version on the 2600's is
12.0(2) and the priority command was only introduced in 12.0(5). So i
will have to upgrade their ios to a new version. The routers both have
32mb Ram and 8 flash. What would be the best image to use and will i
need to upgrade the memory ( expect i will just want some conformation).
Is there a tool on Cisco site to find out what memory is required for
each ios version?
I am still waiting for more info from the customer on the amount of voip
users and the ip address range for the voip vlan etc.
TIA
Mark Rushby
This archive was generated by hypermail 2.1.4 : Thu Apr 01 2004 - 08:15:50 GMT-3