RE: Qos over Wireless

From: chandru lohana (chandrul@gtllimited.com)
Date: Mon Sep 15 2003 - 12:14:43 GMT-3


HI GEORGE ,

WHAT IS THE CURRENT LOAD ON W- LINK ?
IS THE LINK QUALITY GOOD ?

REGARDS
CHANDRU L0HANA

-----Original Message-----
From: George Gittins [mailto:g.gittins@edinburg.esc1.net]
Sent: Mon 9/15/2003 8:53 PM
To: ccielab@groupstudy.com
Cc:
Subject: Qos over Wireless

I have a site which I have deployed ip phones. That site is connected to
our core via T1. However I have that site connected to another site that
has the call manager via a wireless product call Proxim tsunami.. here
is a little layout.
 
School-----t1-core------call managers site
|
| Ethernet via wireless tsunami
|
|
|
4507/ fast Ethernet----Call managers
 
 
 
 
here is the problem that I am running into I have configured both
interfaces on the router with llq but for some reason the link via the
wireless is terrible, I get broken voice .However when I shut down the
port and make the traffic go via the t1 no problem. I am attaching the
config for the port on the 4507. Has anyone deployed ip phones
successfully via any wireless products out there?. I was thinking in
creating a policy map with Dscp values maybe that will fix the problem
 
 
interface FastEthernet7/2
 description Proxim link to Esparza & Economides
 no switchport
 ip address 10.2.0.1 255.255.255.0
 qos trust dscp
end
 
 
config from my router
 
 
 
 
class-map match-all voice-signaling
  match access-group 103
class-map match-all voice-traffic
  match access-group 102
!
!
policy-map VOICE-POLICY
  class voice-traffic
    priority 256
  class voice-signaling
   bandwidth 40
  class class-default
   fair-queue
!
!both policies are applied to both interfaces , the serial and the fast
Ethernet connected to the wireless.
 
George Gittins
Network Maintenance Supervisor
ECISD

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