Solved

4 HP switchs redundancy

Posted on 2012-03-20
7
377 Views
Last Modified: 2012-03-21
Hi everybody,

I need some help, I need to do redundancy with 4 hp switchs.
You can see the network with the attach file.
If think it's quite simple but  want to know if I'm going wrong.
Do I need to enable rstp on every switch and do I need to do some port trunking ?
Also do I need to do something special with vlan configuration ?

PCs are linked to IP phone that are tagged by the omnipcx. No other special vlan, all machines need to communicate between them.

Thank you.
Diagramme-switchs.jpeg
0
Comment
Question by:P6FER
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
7 Comments
 
LVL 10

Accepted Solution

by:
mat1458 earned 500 total points
ID: 37741440
>Do I need to enable rstp on every switch and do I need to do some port trunking ?
RSTP on every switch: yes
Trunking: no (unless you have insufficient bandwidth)
>Also do I need to do something special with vlan configuration ?
Not that I am aware of

Think about unplugging link 3; set the root/backup root bridge on switch 3 + 4 (set spantree priority 4096, set spantree priority 8192).
0
 
LVL 6

Expert Comment

by:RKinsp
ID: 37744312
Who is the default gateway in your diagram? You might have to configure VRRP for default gateway redundancy....
0
 

Author Comment

by:P6FER
ID: 37747843
Hi, thank you for the answer.
I don't need vrrp as I don't use layer 3 on the switchs.
There is just one WAN gateway, a cisco asa appliance.
0
Guide to Performance: Optimization & Monitoring

Nowadays, monitoring is a mixture of tools, systems, and codes—making it a very complex process. And with this complexity, comes variables for failure. Get DZone’s new Guide to Performance to learn how to proactively find these variables and solve them before a disruption occurs.

 
LVL 29

Expert Comment

by:pwindell
ID: 37748723
It is just STP (Spanning Tree Protocol).

STP will determine the fastest path and then will disable the other redundant paths.  If the Active Path fails it will activate one of the others automatically.
0
 

Author Comment

by:P6FER
ID: 37748758
Hi,
I don't understand the meaning of your post ?
Do you mean "You have to use stp" ?
0
 
LVL 29

Expert Comment

by:pwindell
ID: 37748904
STP is the Protocol that the Switches use to manage multiple redundant paths.

If you connect multiple paths without STP the whole thing stops working.  Only one path can be active at any one given moment,....and STP is what manages that.
0
 

Author Comment

by:P6FER
ID: 37749084
Ok I already knew that but thank for your precision.
In fact for the moment only 3 paths are linked sw1-sw2/sw2-sw3/sw3-sw4
I will enable rstp, link the cables and see what's going on.
0

Featured Post

Resolve Critical IT Incidents Fast

If your data, services or processes become compromised, your organization can suffer damage in just minutes and how fast you communicate during a major IT incident is everything. Learn how to immediately identify incidents & best practices to resolve them quickly and effectively.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

I see many questions here on Experts Exchange regarding switch port configurations and trunks. This article is meant for beginners in the subject to help to get basic knowledge about Virtual Local Area Network (VLAN (http://en.wikipedia.org/wiki/Vir…
There are times where you would like to have access to information that is only available from a different network. This network could be down the hall, or across country. If each of the network sites have access to the internet, you can create a ne…
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), 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 (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), 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…

733 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