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Author Topic: ERS 5520 Vlan Routing  (Read 5509 times)

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Offline Guillaume

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ERS 5520 Vlan Routing
« on: June 06, 2013, 03:36:11 PM »
Hi everyone,

One simple question : Would you recommand a Stack of 3x5520 to act as the router for an office with an average load of 300 employee ? We can think around 600-800 device with all the computer/copier/IP Phones, etc.

The switch is already the Core device of our network, and I want now to add some VLAN and do routing between them.

The cpu-utilization is always near 10-15%. We are an engineering company, not a datacenter ! :)

I always thought of or network not being that loaded...

It's because I want for some of our major office to finally separate the network in a couple of individual VLAN. For the moment, we are all running on the same VLAN. (Data and ip phones are already on seperate VLAN.)

Thanks for your advise.


Offline Paul L

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Re: ERS 5520 Vlan Routing
« Reply #1 on: June 06, 2013, 09:25:05 PM »
Just a question.  How many switch stacks do you have and are they all MLT'd back to that core?

As for your question. there are two things at play here. 

--what the switch can do
--Product lifecycle.


Can the switch do it? YES, Dust off an ERS5500 series fact sheet and it will show you that you are covered. 

we have several customers that use 5500s series devices as core routers.  Some in a stack and some in an IST switch cluster deployment.  All these businesses are like yourself at 200-400 users.  With the exception of the ERS5510 bug and a few dead fans over the years all have been extremely solid deployments.   But dead fans are expected when a switch runs 27/4 for 8-10 years.
 
IMHO, when you start to get to around 500 users and up you will want to look at a different core solution like the ERS5632, VSP7000, or ERS8800.

we have several other customers that have migrated away from ERS8600s for ERS5632 or VSP7000 cores.  The jury is out in the VSP7000, but we have no complaints on the ERS5632.


with that said, the ERS5500s are closing in on ten years old.  And news I am hearing out of avaya about the upcoming ERS 5000 software release limitations and the new ERS5800 I think the end is near for the ERS5500.

If you are budgeting this project now, I would look at phasing out the ERS5520 as a core device.  I would still use them as edge devices, but not as a core just based on the age of the product.

my $0.02

« Last Edit: June 06, 2013, 09:42:13 PM by Paul L »
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Offline Guillaume

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Re: ERS 5520 Vlan Routing
« Reply #2 on: June 07, 2013, 09:09:29 AM »
Thanks for you detailed reply Paul.

We have like 4 floor with on each 2x4550T with 4GB of MLT that goes directly into our 3x5520 Core.

So we don't plan to buy anything for that project, we already have those 5520. If we come to the conclusion that our Core can't support the load, we just won't proceed with that project for this year. We are not in buying mode for the moment.

But reading you seem to be a positive aknowlegment right ? I was already pretty sure that our 5520 can do the vlan routing, but I only wanted to verify on this forum with other people.

And yes your right, the product is aging. We migth want to change our Core product in the next 2 year.

Any other advise or real life exemple would be appreciate !

Thanks.

Offline Paul L

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Re: ERS 5520 Vlan Routing
« Reply #3 on: June 07, 2013, 10:07:50 AM »
yes we have customers bigger than your org that are doing what you are planning on doing.  Off the top of my head we have about 10 customers that use 5500 as core devices.  But usually using 5530's as it provided the best 1ge fiber port density.  But the performance is the same, so 5520s will work just fine.

last piece of advice, just make a core stack. Don't complicate your life by doing an IST switch cluster.
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Offline Guillaume

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Re: ERS 5520 Vlan Routing
« Reply #4 on: June 07, 2013, 10:26:09 AM »
Yes the 3x5520 are already in stack and used as our Core device for 3-4 year now.

The concern of this project is only to seperate the network in multiple VLAN and do routing between them with the L3 feature. Was wandering if the switch will support the load.

Thanks for your advise !

Offline Paul L

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Re: ERS 5520 Vlan Routing
« Reply #5 on: June 07, 2013, 10:36:00 AM »
yes, it will support that load.  You can make 1024Vlans and the switch can learn up to 4000 routes.  I think you will be fine. 
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Offline Telair

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Re: ERS 5520 Vlan Routing
« Reply #6 on: June 07, 2013, 12:21:53 PM »
The 5000 series switches can do static and RIP routing without extra licensing requirements which is nice of them.  If you want to do OSPF or BGP you need additional licensing still.  But for minimal routing requirements you can get by nicely on static and RIP.

Offline Paul L

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Re: ERS 5520 Vlan Routing
« Reply #7 on: June 07, 2013, 12:59:16 PM »
the ERS5000 only do RIP and OSPF. No BGP

for BGP you need to move to up the 7000, 8000, or 9000,
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Offline Telair

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Re: ERS 5520 Vlan Routing
« Reply #8 on: June 07, 2013, 02:35:54 PM »
Sorry.  The 5600's can do iBGP but not eBPG as of the v6.3.0 code.  The 5500's can't do BGP, not enough memory.

Offline Paul L

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Re: ERS 5520 Vlan Routing
« Reply #9 on: June 07, 2013, 02:39:34 PM »
SHUT THE FRONT DOOR!!!!!!!!!!!!! 

very cool. 
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