?
Solved

Avaya 9608 Handset with LLDP on Cisco 3750 Switch

Posted on 2016-07-25
2
Medium Priority
?
119 Views
Last Modified: 2016-07-29
We have recently had many problems with relying on DHCP to pass Phone settings to our 9608 deskphones. I was able to enable LLDP on my 3750 switch and that resolved much of the problem. My deskphones  are now able to discover and join the voice vlan.   My issue is this. I see no way to pass the MCIPADD and HTTPSSRVR parameters to the phone from LLDP, even though I've found Avaya documentation that says it can be done. Without being able to pass those, the phone will have to have them programmed in manually. These options were previously passed to the phone with DHCP option 242.  I expect the 1st question you will ask is why don't I just go back to DHCP and you'd be right to ask it. To make a long story short, we are having a bunch of ACK errors on the phones and it is a problem with how they pull addresses from the DHCP server. To this point, nobody has been able to solve that problem; not even our Avaya  vendor, so I'm just trying to come up with another solution that does not require me to statically assign IP addresses on all my phones.
0
Comment
Question by:Eric Hummel
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
2 Comments
 
LVL 42

Accepted Solution

by:
kevinhsieh earned 2000 total points
ID: 41728828
So how are your phones getting IP addresses if not via DHCP?

I have Avaya phones with with 3750G. Phones get voice VLAN via LLDP. The other options are passed via DHCP option 242 from my Windows DHCP servers.

Are you also using 802.1x? If so, you need some additional configuration on the switch to make it work right.

Posting existing configuration for a switchport with a phone, the L3 VLAN configuration, and DHCP scope options will help.
0
 

Author Comment

by:Eric Hummel
ID: 41734964
They receive IP addresses from a DHCP server, but i wanted to only pass the IP info from DHCP and pass all option 242 info via  LLDP. From what I have found, there is no way to pass the HTTP and call server info via LLDP, so I will have to rely on DHCP to do that. At least, I have LLDP assigning the voice vlan to the phones now, so I guess that will have to do.
0

Featured Post

Want to be a Web Developer? Get Certified Today!

Enroll in the Certified Web Development Professional course package to learn HTML, Javascript, and PHP. Build a solid foundation to work toward your dream job!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Article by: user_n
How Sip Phone (User Agent) works and communicates with sip servers 1.  There is a sip server and a sip registrar.  The sip server and sip registrar can be one server or two different servers. The sip registrar is the server on which it is record…
Hey there Heard about jingle, the add on for XMPP that enables point to point audio between two XMPP clients. No server config necessary. Actually quite a cool feature. However, how good is it if you can not use those voice capabilities to do a P…
Monitoring a network: how to monitor network services and why? Michael Kulchisky, MCSE, MCSA, MCP, VTSP, VSP, CCSP outlines the philosophy behind service monitoring and why a handshake validation is critical in network monitoring. Software utilized …
Do you want to know how to make a graph with Microsoft Access? First, create a query with the data for the chart. Then make a blank form and add a chart control. This video also shows how to change what data is displayed on the graph as well as form…

771 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question