Please recommend a Cisco Switch (All ports of Gigabit Capacity)

Posted on 2009-04-24
Last Modified: 2012-05-06
Hi All !

I am looking for a backbone switch with all ports of gigabit capacity. I also got some suggestions from my question id:

Most of the recommendations were for Cisco 3750 Series. My management is asking me the exact model to buy and for the specifications, cost etc.

I can see that there are models in Cisco 3750 Series. Please explain me the terms so that I can take a good decision on myself :

1. What are SFP Ports ?
2. What is meant when you say 100 Mbps ports with "Power Over Ethernet" ?
3. 100BASE-FX, in this does "FX" mean Fiber Optics ? Then can it also be used for Copper or NOT ?
4, What are meanings of "TS, PS, FS, T, S and WS)

I want your recommendations because it is a one time investment and that is too high. Once we purchase a switch and then we find that we could have gone for better switch with a little price difference, then supplier will not replace it.

Question by:JatinHemant
    LVL 7

    Expert Comment

    SFP are modules that plug in the 3750 switch. They can be UTP or Fiber
    It means that if you have IP telephony or wireless access point they can be powered from switch
    FX means Fiber

    3750 is a really great switch

    In this link there are all the models of the 3750. There is also a chat tool with a cisco representative that can help you with everything!!!!!


    Author Comment

    Thanks for the comment.

    Please hava a look at ( It has these specifications:

    Cisco Catalyst 3750G-24PS-E (WS-C3750G-24PS-E)

    (A) 24 Ethernet 10/100/1000 ports with Power over Ethernet and 4 small form-factor pluggable (SFP) transceiver-based Gigabit Ethernet ports
    (B) 32-Gbps, high-speed stacking bus
    (C) Innovative stacking technology
    (D) 1 rack unit (RU) stackable, multilayer switch
    (E) Enterprise-class intelligent services delivered to the network edge
    (F) Enhanced Multilayer Image Software (EMI) installed
    (G) Full dynamic IP routing

    Query: 1.
    It features: (G) Full dynamic IP routing

    Does it mean that if I make VLANs in this switch, I will NOT need any Router with VLAN feature (like older Router 2600 Series) for VLAN Routing. Will the switch itself perform Routing between VLANs configured in it. If so, then it is fantastic. Please clerify my doubt.

    Query 2.
    So what should I get from the first specification (See (A)" ? You say that SFP are PoE but it is confusing me that why here it is "24 Ethernet 10/100/1000 ports with Power over Ethernet" ?

    LVL 7

    Accepted Solution

    Query 1:

    These switches are L3 switches and that means that they capable of performing intervlan routing and normal routing. Think of them like a router with 24 or 48 ethernet interdaces.

    Query 2:

    SFP is not POE

    SFP are typically 2 or 4 extra ports that you have to buy modules to plug in in order to use them. Those modules can be either Fiber or UTP
    POE is power over ethernet and if the switch supports the feature then you can plug in the ports IP phones or access points without using external Power!!

    Author Comment

    Thanks for the instant reply.

    One last question:

    For Query 1:
    Two years back, I had made VLANs in a Cisco 2950 Switch and for Inter-VLAN Routing, I used Cisco 2620 Switch. You mean that now there is NO need for this extra router. is good and I really didn't know it.

    So, do we need to do some Routing Configuration in these L3 Cisco Switches (like Cisco 2600 Series Routers) or just making VLANs will, by default, allow Routing in between these VLANs ?

    Thanks again.
    LVL 7

    Expert Comment

    2950 are Layer 2 switches. So you need a router for intervlan routing. But 3750 are Layer 3 and the router is not need to route between vlans

    for intervlan routing in the 3750 you need to enable routing
    switch(config)# ip routing

    then for each vlan create a vlan intergace and assign IP addresses to it

    after that you are done!!!

    Write Comment

    Please enter a first name

    Please enter a last name

    We will never share this with anyone.

    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

    Suggested Solutions

    If you have an ASA5510 then this sort of thing would be better handled with a CSC Module, however on an ASA5505 thats not an option, and if you want to throw in a quick solution to stop your staff going to facebook during work time, then this is the…
    I recently attended Cisco Live! in Las Vegas, a conference that boasted over 28,000 techies in attendance, and a week of hands-on learning hosted by a solid partner with which Concerto goes to market.  Every year, Cisco displays cutting-edge technol…
    After creating this article (, I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
    After creating this article (, I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…

    760 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

    7 Experts available now in Live!

    Get 1:1 Help Now