02. Switch Operation Flashcards
This chapter serves as a primer, describing how an Ethernet switch works
Set MAC address table aging time
mac address-table aging-time “time (sec)”
Investigate the CAM table
show mac address-table
filter out MAC addresses that the switch learned through Ethernet 0/1
show mac address-table interface Ethernet 0/1
Investigate the Cisco Discovery Protocol neighbors
show cdp neighbor
Investigate CAM table aging time
show mac address-table aging-time
verify the SDM template that is in use
show sdm prefer
display all SDM templates that are available
sdm prefer ?
Shows how much TCAM has now been utilized and how much is available
show platform tcam utilization
Enable LLDP on a device
lldp run
Disable LLDP on an interface
no lldp enable
Verify if LLDP is enabled on the device
show lldp
set the interface to not receive lldp
no lldp receive
set the interface to not transmit lldp
no lldp transmit
Displays information about neighboring devices discovered via LLDP
show lldp neighbors
investigate the more detailed output of the LLDP neighbors
show lldp neighbors detail
