Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

  • Congratulations strongm on being selected by the Tek-Tips community for having the most helpful posts in the forums last week. Way to Go!

IP Phones with Cisco 3750

Status
Not open for further replies.

liquidshokk

Technical User
Jan 31, 2007
940
GB
Hi All

Puzzling issue here, we are moving IP Phones from an Extreme switch to a cisco 3750, the two switches are configured the same but when the IP Phones are connected to the cisco switch they sit trying to discover the IPO. but they work perfectly when connected to the Extreme switch. Now obviously this is an issue with the cisco switch but as they are configured exactly the same just thought i'd check if anyone else has experienced this?!?!

The ports are configued as 100 meg full duplex on both switches...

Thanks.
 
From another port on the cisco can you ping the IPO? Does the IPO have the extreme as its gateway? It sounds like a routing issue between the switches.

Kevin Wing
ACS- Implement IP Office
ACA- Implement IP Office
Carousel Industries
 
If a laptop is plugged into the port the phone was tried in then you can ping the IPO. but when the phone is connected it sits on discover. The IP address of the cisco is the same as the extreme was so no IPO changes required I would assume. Those more involved in this issue are implying it is an issue with cisco 3750s and IPO units but im not having it.
 
You could have a look here how a Cisco is installed propperly.


Avaya_Red.gif

___________________________________________
It works! Now if only I could remember what I did...
___________________________________________
 
Have you tried enabling "portfast" on the switch? If you have STP configured you can get some really weird issues with startup connectivity until you enable it.

Geoff
 
Status
Not open for further replies.

Part and Inventory Search

Sponsor

Back
Top