So - the scenario is this! We currently have an HP Procurve 5412zl switch (fully populated). this has a few VLANs configured, the main ones being for Data and the VoIP phones. We also have some VLANs setup up for Wireless networks etc.
We now need to add a second switch to allow the capacity for extending the office; so i have got a 5406zl2 switch, together with 2 x 20GB + 2 x 10GB SFP modules and some SFP+ cables to connect them together. The plan is to use LACP to utilise the full 20GB capability between the two switches that the SFP+ ports can provide (one module per switch).
However - I am reading a lot of conflicting and confusing information about how to approach it - most people seem to be advising against LACP, or if i do use it, to enable spanning tree protocol - which of course i can't due to using a MITEL IP phone system...
Can anyone offer any decisive advice on this please?