You will want to have trunk/general mode switchport set up on the ports connecting the stack and the stand alone switch. On the PowerConnect 62xx series switches, you must use General mode if you want to allow management traffic onto the switch over the PVID.  If you use Trunk mode, you will not have the default VLAN on those ports.  The ports will only allow tagged traffic. example console# configure  console(config)# interface ethernet e11 console(config-if)# switchport mode general  console(config-if)# switchport general allowed vlan add 100 tagged  console(config-if)# switchport general allowed vlan add 200 untagged  console(config-if-1/g1)#switchport general pvid 1 console(config-if)# end This is assuming that you are wanting to connect the switches only at Layer 2 and not Layer 3 (routing).  If you are routing and want the switches to communicate thru layer 3 then you will need an isolated VLAN and IP address range. Then set the ports connecting between the devices as a access switchport with the specified VLAN.
hi everybody one stack comprises of two 6224p, I'm using two identical FC SFP+ modules (could not dig up D/PN, snap will be attached soon) from master's g23(but any other SFP+) via FC to third 6224p now, I see the link is there, at least both ends indicate link is there and no problems reported, yet.. I cannot, to start with, make both ends ping one another I'd like to leave third switch in stand-alone mode, simply have a FC link between it and the stack why these cannot see each other? what should check/make sure of first? many thanks.
62xx to 62xx via SFP+ 10GBase-LR