Cisco switches with Avaya IP phones

Answered Question
Aug 31st, 2009

Dear All,

We plan to implement Avaya IP phone in our network.right now we have all cisco c2950 switches for user connection. shortly we plan to have cisco POE switches for accomdating Avaya Ip phones.

Does cisco POE switches support Avaya Ip phones?we will be having both Data and Voice vlan configuration in switch port.

If its support can we configure better QOS for Voice traffic?

Thanks

I have this problem too.
0 votes
Correct Answer by linuxnt43 about 4 years 7 months ago

I work for a company that did this 2 years ago. It works very well now but we had some "burn in" work together with our datacom provider, to ensure that QoS really worked all the way from remote site to central office where the Avaya-ACD (PBX) resides.

We have 3560's to connect the workplace and we connect PC to the Avaya phone (Daisy chain). Works nicely all the way from remote sites some 500 km away.

We also b.t.w have home workers over Inet & VPN, these can't have QoS but it works mostly anyway. We even experiment'd with a small site over VPN. That also worked well (We DO have exellent quality Internet though) ...

So yes, Avaya equippment and Cisco stuff play along and QoS is needed when bandwith hits the roof. QoS is tricky though even for specialists - Its easy to limit by mistake (we did :o) ...

Hope this helps!

\\S.

  • 1
  • 2
  • 3
  • 4
  • 5
Average Rating: 5 (1 ratings)
Correct Answer
linuxnt43 Mon, 08/31/2009 - 22:08

I work for a company that did this 2 years ago. It works very well now but we had some "burn in" work together with our datacom provider, to ensure that QoS really worked all the way from remote site to central office where the Avaya-ACD (PBX) resides.

We have 3560's to connect the workplace and we connect PC to the Avaya phone (Daisy chain). Works nicely all the way from remote sites some 500 km away.

We also b.t.w have home workers over Inet & VPN, these can't have QoS but it works mostly anyway. We even experiment'd with a small site over VPN. That also worked well (We DO have exellent quality Internet though) ...

So yes, Avaya equippment and Cisco stuff play along and QoS is needed when bandwith hits the roof. QoS is tricky though even for specialists - Its easy to limit by mistake (we did :o) ...

Hope this helps!

\\S.

linuxnt43 Mon, 08/31/2009 - 23:00

Happy to help, because I have got so much help from the Intenet community over the years!

\\S.

Shibu1978 Wed, 09/09/2009 - 05:44

Hi,

Can i have some links ,docs regarding this.

Thanks for your action.

linuxnt43 Thu, 09/10/2009 - 00:02

Well, I don't have that much in printing ... What would be interesting?

I'll give it a try:

Typical port config for PC+Phone:

interface FastEthernet0/17

switchport access vlan 10

switchport mode access

switchport voice vlan 110

srr-queue bandwidth share 10 10 60 20

srr-queue bandwidth shape 10 0 0 0

mls qos trust dscp

no snmp trap link-status

auto qos voip trust

spanning-tree portfast

Though it works well -I'm not able to actually "defend" the choosen numbers for shape and share. I know we had problems a while ago, because we had values that unintentionally gave us a roof of 10 Mb on a trunk of 100Mb because we reused params from a 1 Gb trunk! This wasn't easy to remedy - so be mindful!

I sometimes suspect the use of both share and shape is somewhat fishy - but again - it works :o)

3560 general QoS ?

Again - I can't really say why, but heres the config:

!

mls qos map cos-dscp 0 8 16 26 32 46 48 56

mls qos srr-queue input bandwidth 90 10

mls qos srr-queue input threshold 1 8 16

mls qos srr-queue input threshold 2 34 66

mls qos srr-queue input buffers 67 33

mls qos srr-queue input cos-map queue 1 threshold 2 1

mls qos srr-queue input cos-map queue 1 threshold 3 0

mls qos srr-queue input cos-map queue 2 threshold 1 2

mls qos srr-queue input cos-map queue 2 threshold 2 4 6 7

mls qos srr-queue input cos-map queue 2 threshold 3 3 5

mls qos srr-queue input dscp-map queue 1 threshold 2 9 10 11 12 13 14 15

mls qos srr-queue input dscp-map queue 1 threshold 3 0 1 2 3 4 5 6 7

mls qos srr-queue input dscp-map queue 1 threshold 3 32

mls qos srr-queue input dscp-map queue 2 threshold 1 16 17 18 19 20 21 22 23

mls qos srr-queue input dscp-map queue 2 threshold 2 33 34 35 36 37 38 39 48

mls qos srr-queue input dscp-map queue 2 threshold 2 49 50 51 52 53 54 55 56

mls qos srr-queue input dscp-map queue 2 threshold 2 57 58 59 60 61 62 63

mls qos srr-queue input dscp-map queue 2 threshold 3 24 25 26 27 28 29 30 31

mls qos srr-queue input dscp-map queue 2 threshold 3 40 41 42 43 44 45 46 47

mls qos srr-queue output cos-map queue 1 threshold 3 5

mls qos srr-queue output cos-map queue 2 threshold 3 3 6 7

mls qos srr-queue output cos-map queue 3 threshold 3 2 4

mls qos srr-queue output cos-map queue 4 threshold 2 1

mls qos srr-queue output cos-map queue 4 threshold 3 0

mls qos srr-queue output dscp-map queue 1 threshold 3 40 41 42 43 44 45 46 47

mls qos srr-queue output dscp-map queue 2 threshold 3 24 25 26 27 28 29 30 31

mls qos srr-queue output dscp-map queue 2 threshold 3 48 49 50 51 52 53 54 55

mls qos srr-queue output dscp-map queue 2 threshold 3 56 57 58 59 60 61 62 63

mls qos srr-queue output dscp-map queue 3 threshold 3 16 17 18 19 20 21 22 23

mls qos srr-queue output dscp-map queue 3 threshold 3 32 33 34 35 36 37 38 39

mls qos srr-queue output dscp-map queue 4 threshold 1 8

mls qos srr-queue output dscp-map queue 4 threshold 2 9 10 11 12 13 14 15

mls qos srr-queue output dscp-map queue 4 threshold 3 0 1 2 3 4 5 6 7

mls qos queue-set output 1 threshold 1 138 138 92 138

mls qos queue-set output 1 threshold 2 138 138 92 400

mls qos queue-set output 1 threshold 3 36 77 100 318

mls qos queue-set output 1 threshold 4 20 50 67 400

mls qos queue-set output 2 threshold 1 149 149 100 149

mls qos queue-set output 2 threshold 2 118 118 100 235

mls qos queue-set output 2 threshold 3 41 68 100 272

mls qos queue-set output 2 threshold 4 42 72 100 242

mls qos queue-set output 1 buffers 10 10 26 54

mls qos queue-set output 2 buffers 16 6 17 61

mls qos

!

A lot here is default from what I remeber, but may help to compare with if you get in trouble

Anything else? - I'll try to gather it for you!

Shibu1978 Wed, 09/09/2009 - 22:49

Dear,

Could you please send me some working configuration Cisco switches with Avaya IP phone

Thanks in advance

Actions

Login or Register to take actions

This Discussion

Posted August 31, 2009 at 12:36 PM
Stats:
Replies:6 Avg. Rating:5
Views:4419 Votes:0
Shares:0
Tags: No tags.