Jump to content

Redundant Between Switches

masondb
By masondb
in Networking
 Share
Posted

I am needing to a redundant connection between 3 switches. I was thinking having 1 managed switch from cisco and then 2 other switches (unmanged). Can this be done and with what switches from cisco

 

Link to comment
Share on other sites
Link to post
Share on other sites
Posted

You basically need switches that support the Spanning Tree Protocol. So you'll probably need 3 managed switches.

Projects | > Project DisplayGRID < | > Portable Virtualization Server < | > CORE GTX < | Projects

Community | > Schnitzel Teamspeak Server < | Community

Guides | > Getting started with a NAS < | > Setting up your Ubiquiti Access Points < | > pfSense Guide < | Guides

Link to comment
Share on other sites
Link to post
Share on other sites
Posted

Yes, with three managed switches you can create a mesh - 1 -> 2, 3, 2 -> 1, 3 and 3 -> 1, 2

Using STP enabled on all three will put redundant, loop, links into a blocking state. If a link goes down, STP can detect it and switch a port from blocking to forwarding. Only thing, it isn't instant... Most managed switches will support this kind of thing.

Taking it a step further, you could also make each connection with multiple ports in trunk mode. This would give even more redundancy...

Forum Links - Community Standards, Privacy Policy, FAQ, Features Suggestions, Bug and Issues.

Folding/Boinc Info - Check out the Folding and Boinc Section, read the Folding Install thread and the Folding FAQ. Info on Boinc is here. Don't forget to join team 223518. Check out other users Folding Rigs for ideas. Don't forget to follow the @LTTCompute for updates and other random posts about the various teams.

Spoiler

Whaler_99 Links - "Green Machine" (watercooled), "Out of the Blue" (watercooled), My 4P Folding rigs, My multi GPU Folding Rigs, The Water Cooling FAQ, My 40TB Storage Server, My Folding Stats. The CM HAF XB review, the Aqualis Pro 450 review, the PrimoChill CTR Phase II Res review, the IcyDock ToughArmor 6x1 review, the 3x2 Storage Cage review, the 5x3 Storage Cage review, my Milwaukee Jobsite Backpack review, my Thermaltake Core X2 review, my CoolerMaster Storm Stryker overview. Link to DA Blogs home.

Follow me on Twitter for updates @Whaler_99

 

 

 

 

Link to comment
Share on other sites
Link to post
Share on other sites
Posted

Yes, with three managed switches you can create a mesh - 1 -> 2, 3, 2 -> 1, 3 and 3 -> 1, 2

Using STP enabled on all three will put redundant, loop, links into a blocking state. If a link goes down, STP can detect it and switch a port from blocking to forwarding. Only thing, it isn't instant... Most managed switches will support this kind of thing.

Taking it a step further, you could also make each connection with multiple ports in trunk mode. This would give even more redundancy...

 

This is what you should listen to.

 

You need STP on the switches for it to work otherwise it will be a endless loop. Look up STP it's neat how it works. 

“Everything in excess! To enjoy the flavor of life, take big bites. Moderation is for monks.”

Link to comment
Share on other sites
Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing Networking

×