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chesterzooFlag for United Kingdom of Great Britain and Northern Ireland

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VLAN Trunk and routing questions

Hiya there,

I have 8 VLANS coming from my HP 6108 - 8 Port GB Switch

i have 2 HP 5412 Chassis' with CX4 interfaces

i want to take all 8 VLANS onto the chassis'.  i was wondering whether i would be better using 8 cables to go into the chassis and assigning each port to that VLAN.

ie.
vlan 1 untagged a1
vlan 2 untagged a2
vlan 3 untagged a3

so on and so forth...

or would i be better just setting up a 1 GB trunk link from the 6108 onto the chassis with all of them tagged.

Thats how i have the Chassis to Chassis link setup, i thought if its 10GB then it wont really make a difference that im taking all 8 over the link.

any comments?

cheers
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JFrederick29
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no that sounds good, very clear and helpful thanks!

Anybody else have any opinions? not that i dont value yours i just wanted a few different opinions so i can weigh up the options?

Cheers
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so am I right in saying if switch ports weren't at a premium everybody would go for 1 GB link per VLAN.

I just thought because I am using the 6108 as my backbone switch and it does my inter-vlan routing it would be best keeping the bandwidth as high as possible.

so could i just ask if i had 2 HP switches connected with 4 cores of fibre that could run at 100mb only, could i theoretically link both pairs using LACP and 2 sets of physical media converters?? thus making me have a 200mb link?
For most, a 1Gbps backbone is plenty, however "your mileage may vary".
You should be able to go into your switches and look at the bandwidth utilization.

200Mbps link?  Yes.
yeah that's a good idea, ill check out the current utilisation and have a look! :)

Cheers guys...
bandwidth varies a fair bit between the different switches and VLANS, so i think im best sticking to the 1gb per VLAN way of doing it... just to make sure i get that extra bit of bandwidth!

Cheers
Cheers!