Cisco Support Community
Showing results for 
Search instead for 
Did you mean: 

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

New Member

Switching design


I have some questions about routing and switching design.

I have old Cisco network (Catalyst 4006, ...)

With several end point connected with fiber .

Today i have some network loop (spanning tree is in use).

I have some questions about change in my network.

1) Is it better to change the Catalyst 4006 with 4700 serie, or install 3750 Catalyst switch (using Stackwise techno). ?

2) Is it better to use Etherchannel to secure fiber link rather than spanning tree loop ?

3) To secure my gateway is it possible to use HSRP with 3750. I have one gateway per vlans (10 Vlans).

Thanks for your recommandations

Hall of Fame Super Bronze

Re: Switching design

1) Since you have a 4006, the 4500 switch seems the most logical path.

Are you planning on upgrading to VoIP ?

If so, the 3750 prices are more competitive. Either choice depends on the switch usage.

4500 Series is intended as a distribution switch while the 3750 is intended as an access switch.

2) Etherchannel is bundling 2 or more links into one logical channel, it does not prevent spanning-tree loops.

3) Yes, you can use HSRP with the 3750 but keep in mind, with the stacked cable, a group of physical switches will be shown as a single switch in the CLI. In order to HSRP between 3750s, you need to have 2 stacks or 2 single switches.