Call Quality (QoS)

[Karl Collinson]

Afternoon All,
Seem to be having problems with call quality.

Unsure if its QoS on the local LAN or a problem with the ISDN 30.

Can someone just have a quick overlook on this config and point out if ive missed anything.
Thx
---------
Running configuration:

; J8164A Configuration Editor; Created on release #H.10.45

hostname "ProCurve Switch 2626-PWR"
ip default-gateway 192.168.254.254
ip routing
snmp-server community "public" Unrestricted
vlan 1
name "DEFAULT_VLAN"
untagged 26
ip address 192.168.254.253 255.255.255.0
no untagged 1-25
exit
vlan 2
name "VoIP"
untagged 13-14
ip address 10.0.2.1 255.255.255.0
qos priority 7
tagged 1-12,16
voice
exit
vlan 3
name "Data"
untagged 1-12,15-25
ip address 10.0.3.1 255.255.255.0
exit
ip route 0.0.0.0 0.0.0.0 192.168.254.254
spanning-tree



--------

I have i missed anything?

Wouldnt expect QoS issues on a LAN with only 13 users, 13 phones and very little LAN traffic.

Thx,
Karl.

[cenk sasmaztin]

hi Karl
yess vlan 2 voip vlan and priority 7 ver good

working L2 priority only tag port

end device send frame to destination and attach this freme 4bit tag info vlan id and tag priority there fore switch only see this information tag port

1-all switch on you make vlan 2 voip vlan and priority 7 and all uplink port tag all vlan avare.
2-all ip phone you setting vlan id 2 and priority 7
3-voip server nic setting priority 7

good luck

[Karl Collinson]

I dont understand what your saying cenk sasmaztin... Sorry?

Thx,
Karl.

[cenk sasmaztin]

hi Karl


my exposition for call quality ,and config on your switch L2 QoS feature

[Mohieddin Kharnoub]

Hi

Configuration wise, looks fine.

I've noticed you are enabling Routing on this switch, can you explain more about the topology you have !!!

Also; whats your VoIP System ?

Good Luck !!!

[Karl Collinson]

Afternoon All,

Applications on the Data VLAN need to spk to the VoIP VLAN (Call loggers etc)..

The phone system is an Intertel, and i believe only uses 802.1p..

THx,
Karl.

[cenk sasmaztin]

hi Karl
please carefull my response
and you learn 802.1p protocol

http://www.tml.tkk.fi/Opinnot/Tik-110.551/1999/papers/08IEEE802.1QosInMAC/qos.html