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 may need to be set to "BASE". If it is set to "Unit select" you may not get any reasonable response out of the serial port
• If nothing seems to happen, press ^Y
• The local user names (for the web interface) are "RO" and "RW", respectively.

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 1-46
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
cli password switch serial local
cli password switch telnet local
cli password switch read-only "LOWIPMIPASSWD"
cli password switch read-write "IPMIPASSWD"
cli password stack read-only "LOWIPMIPASSWD"
cli password stack read-write "IPMIPASSWD"
snmp-server community "public" ro
snmp-server community "COMPLEXHASH" rw
snmp-server contact "grid.sysadmin@nikhef.nl"
snmp-server name "farmnet-sw-valentine-XX"
snmp-server location "H139"

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

Set the STP leaning mode to fast

interface FastEthernet ALL
spanning-tree port 1-48 learning fast
spanning-tree port 1-48 cost 1 priority 80
exit

Try and save the configuration:

copy config nvram