View the MAC address table on a Cisco switch
Contributed by qmchenry 
Tagged: Cisco switch Switches maintain a database of MAC addresses, both manually configured (static) and dynamically learned entries. During troubleshooting, it may be helpful to investigate the entries in the MAC table.
To view the whole MAC table, use the following command from enable mode:
show mac-address-table
To list only the dynamically learned entries in the MAC table:
show mac-address-table dynamic
Mike Sherman said on April 1, 2009
show mac-address-table vlan 123
0zK4Rr said on September 9, 2009
sh mac address-table dynamic | exc Gi0/23|Gi0/24
*** Gi0/23 Gi0/24 puertos de cascadas
sh mac-address-table interface Fa0/7
*** MAC del puerto Fa0/7
Anonymous said on September 17, 2009
On an old 5500:
Usage: show cam [count] [vlan]
show cam
show cam [vlan]
show cam agingtime
show cam mlsrp [vlan]
Anonymous said on December 5, 2009
show interface serial 0/0
vikram singh said on May 23, 2010
to check the sequence or in how many stages your network work just type tracert web site name (google.com) and you find theful path of your metwork and web site..
vikram singh said on May 23, 2010
A powerful command to trace your network or to check the connectivity in your network that is PING command (Packet InterNet Gopher) tracert command always shows full information from source to destination but ping shows only if the network is working or not means yes or no for example (Tracert lists the places that a message passes from source to destination. Ping only says the computer destination is answering “yes, I’m here.” Traceroute is like when you are making directions for friends to come to your house as you ride the route – “Turn right on 5th, left on 10th, 640 north, left on highway 251″ Ping is a phone call where the other person picks up and says “I’m home” then hangs up. )