Solved

Extending Cisco Phone Switch

Posted on 2011-09-23
12
265 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
12 Comments
 
LVL 18

Expert Comment

by:jmeggers
Comment Utility
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 32

Author Comment

by:PowerEdgeTech
Comment Utility
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 32

Author Comment

by:PowerEdgeTech
Comment Utility
(Sorry ... not 9-port, but 8-port :))
0
 
LVL 15

Expert Comment

by:sr75
Comment Utility
Go with what you have already.  
0
 
LVL 32

Author Comment

by:PowerEdgeTech
Comment Utility
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
Comment Utility
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
What Should I Do With This Threat Intelligence?

Are you wondering if you actually need threat intelligence? The answer is yes. We explain the basics for creating useful threat intelligence.

 
LVL 32

Author Comment

by:PowerEdgeTech
Comment Utility
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
Comment Utility
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 32

Author Comment

by:PowerEdgeTech
Comment Utility
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
Comment Utility
P.E.T., correct, you want to use another 3560 to take advantage of the CAB-SFP cable
0
 
LVL 21

Accepted Solution

by:
eeRoot earned 300 total points
Comment Utility
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 32

Author Closing Comment

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

Featured Post

How your wiki can always stay up-to-date

Quip doubles as a “living” wiki and a project management tool that evolves with your organization. As you finish projects in Quip, the work remains, easily accessible to all team members, new and old.
- Increase transparency
- Onboard new hires faster
- Access from mobile/offline

Join & Write a Comment

Suggested Solutions

Every year the snow affects people and businesses. According to the Federation of Small Businesses (FSB), in 2009, UK businesses lost an estimated £1.2bn (http://news.bbc.co.uk/1/hi/business/7864804.stm) because of bad weather. This article was c…
I eventually solved a perplexing problem setting up telnet for a new switch.  I installed a new Cisco WS-03560X-24P switch connected to an existing Cisco 4506 running a WS-X4013-10GE Sup II-Plus. After configuring vlans and trunking,  I could no…
In this tutorial you'll learn about bandwidth monitoring with flows and packet sniffing with our network monitoring solution PRTG Network Monitor (https://www.paessler.com/prtg). If you're interested in additional methods for monitoring bandwidt…
You have products, that come in variants and want to set different prices for them? Watch this micro tutorial that describes how to configure prices for Magento super attributes. Assigning simple products to configurable: We assigned simple products…

772 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

Need Help in Real-Time?

Connect with top rated Experts

12 Experts available now in Live!

Get 1:1 Help Now