ADAC, LLDP, Alcatel IP phone and Nortel Switch

[Dorian]

Hello,

I'm relatively new to the VoIP world and have some question.

My architechture is quite simple:

2*8600 as core network and some 4550 and 470 stack to the edge.
We are installing some IP phone to this stacks.

A vlan is configured for the voice (tagged), and a vlan for the data (Untagged and Pvid). Connection ports are configured UntagPvidOnly. Everything is beautiful. But there is a small problem => I have to configure every Phone (IP, vlan, IP address of tftp server etc).

I am a lazy boy so I decide to use DHCP.

I configured a DHCP relay on my 8600, ad some options to my DHCP server:
- 003 Router
- 006 DNS server
- 015 Domain name
- 043 Vendor specific info
- 066 Boot Server Host Name
- 067 Bootfile Name

Now I only have to configure the vlan on each IP phone before plugging it.

But I'm so lazy that I don't want to do anything when I plug an IP phone.

Coul my Ip phone discover the VOIP vlan automatically and how to configure my switch to allow that ? I think there is something to do with ADAC but they are for Nortel IP phone right ? Maybe the LLDP could help ?

Sorry for my English, I try to improve 

[saturnin55]

We have the exact same setup as you.


With 45xx you can use LLDP-MED with ADAC (I disable ADAC by MAC) to supply the Voice VLAN. The switch will add the voice vlan and put the port into unTagPvidOnly (if that's what you want).

Dhcp option are :

   option VoIPPhone "Nortel-i2004-A,w.x.y.z:4100,1,10;w.x.y.z:4100,1,10.";    => option 128
   option VoIPProvisioning "Nortel-i2004-B,lldp=y;";  => option 224 - I'm not sure if it is needed

The only step with need to do, is make sure the firmware in the phones are up to date (out of the box, they aren't so far). So, before deploying a new phone on my campus, I (or someone) plug it on a port that is on our voice vlan (access, untagged), update the firmware, enter node id, TN. Take 2 minutes. Phone is ready to be plugged into any ADAC/LLDP-MED aware port on my network!.

I don't think LLDP-MED is supposed on 470 switches, but that's by far the best/easiest setup I've found so far.

*** Works with Avaya 11xx and 12xx IP Phones with a fairly new firmware that support LLDP-MED correctly.

Good Luck!

[Dorian]

I have finally found a solution.
My configuration is based upon another one. I suppose some lines are useless for what I want to do, but it works.
With that, I can plug an alcatel phone on any port, it will be put in the right VLAN, and work perfectly. I can connect a computer to the phone. The computer will be put in the data vlan and have access to all of our network.

If someone has somemthing to says concerning the uselessness of certain line, feel free to comment, I know this configuration is not perfect.


!
! *** ADAC ***
!
interface FastEthernet ALL
no adac detection port 1/49-50,2/49-50 mac
exit
interface FastEthernet ALL
adac port 1/1-48,2/1-48,3/ALL,4/ALL enable
exit
adac mac-range-table low-end 00-80-9F-00-00-00 high-end 00-80-9F-FF-FF-FF
adac voice-vlan 200
adac uplink-port 1/49
adac op-mode tagged-frames
adac enable
!
! *** 802.1ab ***
!
interface FastEthernet ALL
lldp port 1/1-48,2/1-48,3/ALL,4/ALL config-notification
lldp tx-tlv port 1/1-48,2/1-48,3/ALL,4/ALL local-mgmt-addr port-desc sys-desc sys-name
lldp tx-tlv port 1/1-48,2/1-48,3/ALL,4/ALL dot3 mac-phy-config-status
lldp tx-tlv port 1/1-48,2/1-48,3/ALL,4/ALL med extendedPSE med-capabilities network-policy
exit
!
! *** 802.1AB MED Voice Network Policies ***
!
interface FastEthernet ALL
lldp med-network-policies port 1/1-48,2/1-48,3/ALL,4/ALL voice dscp 46 priority 6 tagging tagged vlan-id 200
exit

[Michael McNamara]

Just a quick warning for others... the feature that @Dorian is using is only available (I believe) in 6.x software, so the last line of the configuration above might error out depending on the software release you are running.

Thanks for sharing @Dorian!

[Dorian]

This stack is running V5.4.0, no error message during installation (I used "script run" command from a tftp server), and everything seems ok after a reboot (line always in the running-cinfig, no error-message).

I didn't know which software version is required.

[Michael McNamara]

Here's the scoop;

ERS 4500 v5.4 or higher
ERS 5000 v6.x or higher

Cheers!

[Dorian]

I feel so stupid...