Aastra IP Phone with Cisco 3560 Config

[cyberburn07]

I need help with this configuration, the thing is the Aastra phones is not getting the correct ip from the voice vlan. Instead it gets an IP from the data vlan.

Does anyone have a sample configuration for aastra and cisco switches.

[frasul]

would this work if you add the below :

# switchport mode trunk

this enables trunking on the port for two VLANs, data and voice

# switchport voice vlan id

# spanning-tree portfast trunk

#switchport trunk allowed vlan 10.100

#switchport tunk native vlan 100

[Dennis Mink · Accepted solution]

you dont mention the exact phone type you are using, but the main problem with the AAstra phone (or any other non cisco phone for that matter), is the lack of CDP support (which is Cisco proprietary). LLDP more or less does the same as CDP, but for Non-cisco equipment.  I used it to hook up a bunch of Nortel phones on a Cisco 4507 switch and it worked with out any issue. I understand the Aastra's support LLDP as well. LLDP is a way to advertise the voice vlan to the phone, same as CDP is.

Just a thought

=============================
Please remember to rate useful posts, by clicking on the stars below. 

=============================