Nortel 4548GT switches

Valentine subcluster switches (Nortel 4548GT)

The 4500 series Nortel switches are different from all others. A few hints:

• The serial port setting is 9600 8N1 with NO flow control
• Before the serial port will work, the dip switch on the back of the unit MUST be set to "BASE". If it is set to "Unit select" you will never get any reasonable response out of the serial port!
• Configuration of the unit, except for its own IP address, initally proceeds ONLY over the IP interfaces, NOT the serial console. However, starting the QuickConfiguration utility and then interrupting it with ^C gets you to a reasonable state. Use ^Y again to enter the console mode.

Vendor documentation

• The documentation for the 4547GT Nortel switches is at http://support.nortel.com/go/main.jsp?cscat=DOCUMENTATION&poid=18122
• Product page http://products.nortel.com/go/product_content.jsp?prod_id=60960
• Picture of 4548GT at http://www.nortel.com/products/01/passport/4500/images/ers_4548gt_1000x284.jpg

What You Should See

4548GT>
Exec commands:
 enable    Turn on privileged commands
 exit      Exit from the EXEC
...

Proposed Configuration

Configure trunk using MLT (LACP?) on ports 47 and 48 (the two right-most ports) and run both VLAN 9 and VLAN 4 tagged over this trunk. All other ports 1-44 are be be untagged ports in VLAN 9.

ena
conf t
autosave enable
mlt 1 name uplink enable member  47-48
vlan create 4 name IPMI type port
vlan create 9 name FARMNET type port
vlan configcontrol automatic
vlan ports 1-46 tagging disable
vlan ports 47-48 tagging enable
vlan members remove 1 1-48
vlan members 9 1-44
vlan members add 4 47-48
vlan members add 9 47-48

The management interface of the switch can be assigned to VLAN4 now and then configured with the ip address of the switch using:

conf t
vlan mgmt 4
ip address 172.20.X.Y
ip address netmask 255.255.0.0
ip default-gateway 172.20.255.254

where farmnet-sw-valentine-01.ipmi.nikhef.nl = 172.20.1.248, -02 = 172.20.1.249, and -03 = 172.20.1.250.

Try and save the configuration:

copy config nvram