Intertel 8622 and 8662 phones and newer HP switches - getting desperate

[MCA_tech]

I have about 10 HP Procurve switches on my campus. My primary switch is a 5412zl and most of the others are either 5406zls and HP2920s. I've found that my phones don't connect to DHCP after firmware revision K_15_08_0013.swi for anything on the K software, but as soon as I downgrade to that revision or below, the phones connect instantly. As soon as a I upgrade past that revision, then they stop working (trying DHCP...). My new HP2920's don't work at all because their firmware is so new.

Here is the kicker though:  If I put a dumb netgear switch in front of my HP switches with newer firmware and connect to the netgear with a power brick, then they'll get a DHCP address. I can then keep the power brick in and switch it to the wall port (or to a direct port on the switch) - but it won't reconnect if we lose power.

My phones use my default vlan for data and voip so they're simply untagged in the default vlan. I'm going to try putting in an option 43 tomorrow, but I don't see how that could help if the phones are in the same vlan as the dhcp server. Also, I can't set a static IP on the phones either.

If anyone has a suggestion, then I'd love to hear it. Thanks so much to anyone who might be able to help me out.

[sarond]

Do you use LLDP?
LLDP will try and determine a VLAN for IP Phones. Maybe as a test disable it.

[MCA_tech]

I just tried turning off LLDP and that didn't work either.

[sarond]

I am not familiar with the 8622 or 8662 model phones. I only deal with Mitel IP 53xx Phones.

What happens when you watch the boot process? I know on the Mitel phones it will normally discover CDP/LLDP and tag in that VLAN, are you seeing anything to that effect. I just get a feeling that it may be tagging itself in a VLAN and there is no DHCP server, even setting the phone to static won't work if you in the incorrect VLAN.

Just my 2c.

[MCA_tech]

Do you use LLDP?
LLDP will try and determine a VLAN for IP Phones. Maybe as a test disable it.

Sarond - this actually worked when issued via CLI. I should have tried it via CLI sooner.

HP helped me to resolve this issue.

I had to turn off LLDP via the CLI (web interface did not work).

The command I can use to disable LLDP on a port a VOIP  is plugged into:
lldp admin-status [port] disable

The following command was also recommended:
spanning-tree [port] admin-edge-port

This solution worked for my HP2920 and 5406zl and 5412zl switches.

[sarond]

Good to know,
thanks for the feedback.