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Author Topic: VLAN - Number of Hosts  (Read 3330 times)

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Offline bartounet16000

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VLAN - Number of Hosts
« on: December 22, 2014, 09:41:00 AM »
Hello.
We plan to replace all of our printers by new.
We will preview 500 Printers Max.

It will more simple to havin a single VLAN whit this printers.
Because when printer is moved, we don't need to propagate DATA VLAN in all the network...

Today we have AVAYA NETWORK


2 NORTEL 8306 for network CORE  ( IST + SMLT)
We have some distributions stacks whith 2 attachement on the cores ( SMLT)
We have a lot of access switchs/stack ( AVAYA 4548) simple attachement whith distributions

A VLAN DATA per stack
So we have approximative 50 VLANS routed by 8300 CORES


Do you think it is dangerous to create 1 PRINTER VLAN whith 500hosts ??





Offline Michael McNamara

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Re: VLAN - Number of Hosts
« Reply #1 on: December 22, 2014, 01:38:06 PM »
You can use a /23 or /22 if you absolutely need it.

The impact will be on the client device not so much the switch.

You don't want too many VLANs and you don't want too few VLANs.

Good Luck!
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Offline bartounet16000

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Re: VLAN - Number of Hosts
« Reply #2 on: December 22, 2014, 01:49:26 PM »
Thanks for answer Michael

What do you mean when you say the impact wil be on the client?

You think broadcast Domain will be so important and can be slow down printers in this VLAN??

A printer VLAN it does not absolutely needed but; i think it wil be more simple for adding or moving printer...

Printer whith DHCP reservation and thid VLAN propagated on all Switches..



Today Printer are in the vlan data about switch  ( 1 VLAN per Stacks); with fixed IP.
When the printer is moving we change IP or propagate old VLAN...

I think there is no better solution...

how you handle it?
From large printer in a large campus with multiple vlan

Offline TankII

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Re: VLAN - Number of Hosts
« Reply #3 on: December 22, 2014, 06:45:15 PM »
We do reserved DHCP with the printers mixed in with the user population.
One data VLAN per building, sized appropriately.
Note, the main Hospital was an inherited mess, with about 3000 devices and four class 'b' defined subnets.
We will be migrating this to the current standard over the next year.

As long as you make sure only TCP/IP is enabled on the printer, the printer broadcast rates should be minimal.
Some drivers flood the printer NIC with SNMP requests, but those are unicast, not broadcast.

TankII