3905 registration issue with 3COM switch

[SHAIK ABDUL SALEEM BASHA]

Cisco IP Phone 3905 is not getting voice lan information from 3com switch.The phone is not registering.

[Gordon Ross]

Use the command

# lldp admin-status rx

on each port you have a 3905 plugged into.

GTG

[SHAIK ABDUL SALEEM BASHA]

Gordon,

 After the add the cmd also its not taking voice vlan.

Please see the interface level cmds. I configured.

interfac gib 1/0/19

port link-type trunk
 port trunk permit vlan 1 220 240
 port trunk pvid vlan 220
 undo voice vlan mode auto
 voice vlan 240 enable
 broadcast-suppression pps 3000
 undo jumboframe enable
 poe enable
 stp edged-port enable
 lldp  admin-status rx

Gordon Ross

Gordon Ross

lldp admin-status rx

[Gordon Ross]

Our suggested 3Com configuration is:

Global level

# lldp enable

At port level

# lldp admin-status rx
# port link-type hybrid
# port hybrid vlan 9999 tagged
# lldp voice-vlan 9999

GTG

[SHAIK ABDUL SALEEM BASHA]

we configured with as you mentioned.But still it is not getting voice vlan.

Voice vlan 240

Data vlan 220

Please see the below configuration on interface level:

interface GigabitEthernet1/0/46
 port link-type hybrid
 port hybrid vlan 240 tagged
 port hybrid vlan 1 220 untagged
 broadcast-suppression pps 3000
 undo jumboframe enable
 poe enable
 stp edged-port enable
 lldp admin-status rx

Please let me know if any change needed.

[Gordon Ross]

You appear to be missing the command:

# lldp voice-vlan 240

From the port config.

GTG

[SHAIK ABDUL SALEEM BASHA]

3COM switch not allowing to config below cmd.

#lldp voice-vlan 240

lldp voice-vlan 240

[SHAIK ABDUL SALEEM BASHA]

Any thing we need to do on core switch level. Core switch is also 3COM switch. But except 3905 phone, all other models of phones are working fine.

[Gordon Ross]

It's nothing to do with your core switch: It's just some funny interaction between your edge switch and the phone. Here's another way to try configuring the 3Com edge switch:

Global level:

# lldp compliance cdp

Port level:

# lldp admin-status rx
# voice vlan 240 enable

GTG

[SHAIK ABDUL SALEEM BASHA]

Already we tried with the above cmds. but no result

[Gordon Ross]

In which case I'm out. Those are the two methods we use here to get 3Com switches to support the 3905 phones.

Sorry.

GTG

[SHAIK ABDUL SALEEM BASHA]

interface GigabitEthernet1/0/19
 port link-type hybrid
 port hybrid vlan 240 tagged
 port hybrid vlan 1 220 untagged
 undo voice vlan mode auto
 voice vlan 240 enable
 broadcast-suppression pps 3000
 undo jumboframe enable
 poe enable
 stp edged-port enable
 lldp admin-status rx

lld compliance cd is enabled on global