Cisco MWI (message waiting indicator)

MWI light in cisco admin go to feature-> MWI-> look for the number s and see if they work

typically 540, 541

Cisco VLAN Info

Sh spanning-tree sum
Sh spanning –tree vlan ?
Native vlan is the vlan number that packets get tagged with when no other place is found for them to go. Default is 1.

Cisco Switch Password Reset

http://www.cisco.com/en/US/products/hw/switches/ps628/products_password_recovery09186a0080094184.shtml

Cisco trunking config.

s3(config)#int gi0/23
s3(config-if)#switchport trunk encapsulation dot1q
s3(config-if)#switchport trunk allowed vlan all
s3(config-if)#switchport mode trunk
s3(config-if)#switchport trunk native vlan