Solved

Extending Cisco Phone Switch

Posted on 2011-09-23
12
269 Views
Last Modified: 2012-05-12
Hi,

I have a couple of 24-port Cisco phone switches (3560G, PoE series) ... all of the ports are used, and I need to add another couple of phones to the network.

Is this as easy as obtaining any PoE switch (as I do not have any power adapters for the Cisco phones) and extending it that way, or do I need a special kind of switch, or special configuration?

If I can't simply extend by hooking up a switch, what do I need to do?

Thanks.
0
Comment
Question by:PowerEdgeTech
[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
12 Comments
 
LVL 18

Expert Comment

by:jmeggers
ID: 36589407
Adding another POE switch will do.  It will make things easier for you if you're adding the same kind you're already using.
0
 
LVL 33

Author Comment

by:PowerEdgeTech
ID: 36589476
So, you would recommend adding another 3560G?  Adding another 9-port PoE Cisco switch might work, but might complicate things?  I'm not up on configuring/managing Cisco voice stuff, so whatever I would need to plug it in and have it work, is what I'm probably after.
0
 
LVL 33

Author Comment

by:PowerEdgeTech
ID: 36589652
(Sorry ... not 9-port, but 8-port :))
0
Major Incident Management Communications

Major incidents and IT service outages cost companies millions. Often the solution to minimizing damage is automated communication. Find out more in our Major Incident Management Communications infographic.

 
LVL 15

Expert Comment

by:sr75
ID: 36592626
Go with what you have already.  
0
 
LVL 33

Author Comment

by:PowerEdgeTech
ID: 36593004
sr ... could you elaborate?  The only thing I already currently have is 48 used ports (no free ports and no extra PoE switches).
0
 
LVL 1

Expert Comment

by:DvonHoltz
ID: 36593061
PowerEdge Tech,

 If you got a second 3560G, you could then use the CAB-SFP-50CM= SFP interconnect cable to connect the two together rather than creating an port channel between the two.

http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps5528/product_data_sheet09186a00801f3d7d.html
0
 
LVL 33

Author Comment

by:PowerEdgeTech
ID: 36593260
dvon ... if I understand what you're saying, currently one of the existing 48 ports might be being utilized to connect the two switches ... if that is the case, I could free up two of those ports by using the special cable you mention?  I will definitely look at that when I get to work on Monday as a short-term fix, but I think I would prefer a solution that allows me the single port I need now, but also allows me the ability to add additional phones later.

Thanks.
0
 
LVL 1

Assisted Solution

by:DvonHoltz
DvonHoltz earned 200 total points
ID: 36595416
P.E.T. the cable uses SFP ports to connect the switches, so yes it frees up RJ45 ports, but you can also use a second one to connect a third switch giving you as many ports as you buy (8-24-48).
0
 
LVL 33

Author Comment

by:PowerEdgeTech
ID: 36595589
I see.  jm said it would be "easier" to use another of the same switch.  Since I'm after a solution that is as simple as possible to implement, would you recommend the same, or will any PoE switch work to simply plug it in and have it work?
0
 
LVL 1

Expert Comment

by:DvonHoltz
ID: 36684940
P.E.T., correct, you want to use another 3560 to take advantage of the CAB-SFP cable
0
 
LVL 22

Accepted Solution

by:
eeRoot earned 300 total points
ID: 36714074
If you stick with the 3560, you can use the existing 3560's config as a template.  You could also get a 2960, they are similar enough to the 3560's that the config will mostly match.

If you go with a different brand, they you have to figure out how to match up the ip routing, VLAN config, spanning tree config, port configs, monitoring and security, etc.
0
 
LVL 33

Author Closing Comment

by:PowerEdgeTech
ID: 36714313
Thank you all for the input.  Thanks eeRoot for explaining "why" the same (or similar) model would be better.
0

Featured Post

Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

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…
As companies replace their old PBX phone systems with Unified IP Communications, many are finding out that legacy applications such as fax do not work well with VoIP. Fortunately, Cloud Faxing provides a cost-effective alternative that works over an…

738 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