Solved

Configure redundant SFP links

Posted on 2014-02-09
6
465 Views
Last Modified: 2014-06-04
We recently purchase D-Link DGS 1210-48 switches.  Would like to configure them so that the SFP fiber links work in a redundant fashion, if one goes down the system will switch over.  I have looked through the manual, but could not find what I was looking for.  Can someone tell the command(s) that would enable this?
0
Comment
Question by:Aries4033
6 Comments
 
LVL 3

Expert Comment

by:computication
Comment Utility
I can't help you with the commands but why not setup them up in a ring topology and just have the spanning tree protocol handle it?
0
 

Author Comment

by:Aries4033
Comment Utility
I am rather new to configuring switches, can you point to reading that explains what you are speaking of?  Thank you for your quick response.
0
 
LVL 3

Expert Comment

by:computication
Comment Utility
http://en.wikipedia.org/wiki/Network_topology

A ring tolopogy is that you connect the 1st switch with the 2nd and the 2nd with 3rd and the 3rd with the 1st switch. Thus creating a ring.

http://en.wikipedia.org/wiki/Spanning_Tree_Protocol

Basically the STP is a database of MAC addresses hosted on the switches. And, very simply, it tells network packets where to go. So that you don't get to much broadcast traffic. Most GUI based switches have it enabled by default. If you only have 1 VLAN I suggest using Rapid-Spanning Tree.
0
Highfive Gives IT Their Time Back

Highfive is so simple that setting up every meeting room takes just minutes and every employee will be able to start or join a call from any room with ease. Never be called into a meeting just to get it started again. This is how video conferencing should work!

 
LVL 17

Accepted Solution

by:
pergr earned 200 total points
Comment Utility
There are two options, depending on the topology.

If the other end of the fiber connects to the same switch, then instead of spanning tree you should consider "link aggregation", since spanning tree will shut down one of the links, while ling aggregation will use both links.

So, look for ling aggregation; preferably with LACP protocol active on the ports.
In Cisco language link aggregation is called "port channel", and perhaps Dlink uses those words too.
0
 
LVL 26

Assisted Solution

by:Soulja
Soulja earned 50 total points
Comment Utility
How many switches are you talking about? As pergr stated, if you are connecting two fibers between switches you want to configure a port-channel (LAG).
You definitely don't want to do a ring topology. As most a full mesh, but would need to know more about how your network is current set up.
0
 

Expert Comment

by:siaorry
Comment Utility
If you want to create redundant connections with a switch, you would need to create a LAG on the switch. Link Aggregation allows multiple links to be bonded together.
0

Featured Post

Better Security Awareness With Threat Intelligence

See how one of the leading financial services organizations uses Recorded Future as part of a holistic threat intelligence program to promote security awareness and proactively and efficiently identify threats.

Join & Write a Comment

This is an article about my experiences with remote access to my clients (so that I may serve them) and eventually to my home office system via Radmin Remote Control. I have been using remote access for over 10 years and have been improving my metho…
ADCs have gained traction within the last decade, largely due to increased demand for legacy load balancing appliances to handle more advanced application delivery requirements and improve application performance.
Viewers will learn how to connect to a wireless network using the network security key. They will also learn how to access the IP address and DNS server for connections that must be done manually. After setting up a router, find the network security…
Here's a very brief overview of the methods PRTG Network Monitor (https://www.paessler.com/prtg) offers for monitoring bandwidth, to help you decide which methods you´d like to investigate in more detail.  The methods are covered in more detail in o…

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

16 Experts available now in Live!

Get 1:1 Help Now