In a Cisco switch, what is the default period of time after which a MAC address ages out and is discarded?

A. 100 seconds

B. 180 seconds

C. 300 seconds

D. 600 seconds








 

Suggested Answer: C

To configure the aging time for all MAC addresses, perform this task:
Command -
Purpose -
Step 1 -
switch# configure terminal
Enters configuration mode.
Step 2 -
switch(config)# mac-address-table aging-time seconds [vlan vlan_id] Specifies the time before an entry ages out and is discarded from the MAC address table.
The range is from 0 to 1000000; the default is 300 seconds. Entering the value 0 disables the MAC aging. If a VLAN is not specified, the aging specification applies to all VLANs.
Reference:
http://www.cisco.com/en/US/docs/switches/datacenter/nexus5000/sw/configuration/guide/cli/MAC
 Address.html

This question is in 300-115 Implementing Cisco IP Switched Networks (SWITCH) Exam
For getting Cisco Certified Network Professional (CCNP) Routing and Switching Certificate





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