Configuring trunking on HP Switches

[Gibbo]

I've got three HP 4208 Procurve switches on my network. One switch serves the south side of the school, the other the north with a switch in the middle where all the servers are located.

Each switch is connected by two core fibre:

SWITCH (North)-------------IT Suites (North)
:
:
SWITCH (Server Room)------Servers
:
:
SWITCH (South)-------------IT Suites (South)

However, there is four core fibre in place to each switch cabinet.

How difficult is it to configure trunking to utilise these redundant lines? I realise that you can't just plug the second core straight into the switch because of a loopback.

Thanks.

[Diello]

Telnet to the CLI, type 'menu'.

Switch Configuration --> Port/Trunk Settings

Set the 'Group' on the ports necessary to the same trunk. Save the changes, plug in your extra fibre.

[Gibbo]

Sounds dead simple! Thanks very much.

[Geoff]

Here's the port trunking chapter of the manual for your 4200vl series Procurve, if you need to go in more detail.

ftp://ftp.hp.com/pub/networking/soft...050-Chap13.pdf