Cisco switching paths - Analyze CEF

3 important questions on Cisco switching paths - Analyze CEF

When using the show adjacency command, what can be a reason for the adjacency table being empty?

no entries in arp table because no traffic yet

The adjacency table is built from the ARP table. Because you have not generated any traffic yet, there are no entries in the ARP table, and, therefore, the adjacency table is also empty.

What command verifies that Cisco Express Forwarding is enabled for interface Ethernet 0/0 on a router

HQ# show ip interface ethernet 0/0 IP CEF switching is enabled

What command disables CEF on int eth0/0 on a router?

HQ(config)# interface ethernet 0/0 HQ(config-if)# no ip route-cache cef

The question on the page originate from the summary of the following study material:

  • A unique study and practice tool
  • Never study anything twice again
  • Get the grades you hope for
  • 100% sure, 100% understanding
Remember faster, study better. Scientifically proven.
Trustpilot Logo