Specifications

IP Switching Commands
show cef interface
ISW-124
Cisco IOS IP Switching Command Reference
May 2008
Usage Guidelines You can use this command to display the detailed Cisco Express Forwarding status for all interfaces.
Values entered for the type and number arguments display Cisco Express Forwarding status information
for the specified interface type and number.
The policy-statistics, input, and output keywords are available only on distributed switching platforms.
Examples The following example shows how to display a summary of Cisco Express Forwarding information for
an interface named Ethernet 3/0:
Router# show cef interface ethernet 3/0 brief
Interface IP-Address Status Switching
Ethernet3/0 10.0.212.6 up CEF
Router#
The following is sample output from the show cef interface command for Fast Ethernet interface 1/0/0
with BGP policy accounting configured for input traffic:
Router# show cef interface fastethernet 1/0/0
FastEthernet1/0/0 is up (if_number 6)
Corresponding hwidb fast_if_number 6
Corresponding hwidb firstsw->if_number 6
Internet address is 10.1.1.1/24
ICMP redirects are always sent
Per packet load-sharing is disabled
IP unicast RPF check is disabled
Inbound access list is not set
Outbound access list is not set
IP policy routing is disabled
BGP based policy accounting on input is enabled
BGP based policy accounting on output is disabled
Hardware idb is FastEthernet1/0/0 (6)
Software idb is FastEthernet1/0/0 (6)
Fast switching type 1, interface type 18
IP Distributed CEF switching enabled
IP Feature Fast switching turbo vector
IP Feature CEF switching turbo vector
Input fast flags 0x100, Output fast flags 0x0, Flags 0x0
ifindex 7(7)
12.3(4)T The input and output keywords were added.
The display output was modified to include support for Cisco Express Forwarding for
IPv6 and distributed Cisco Express Forwarding interface information. Output fields
that support BGP policy accounting were added for the Cisco
7200 series and Cisco
7500 series platforms.
12.2(14)S This command was integrated into Cisco IOS Release 12.2(14)S.
12.2(25)S The internal keyword was added.
12.2(28)SB This command was integrated into Cisco IOS Release 12.2(28)SB.
12.2(25)SG This command was integrated into Cisco IOS Release 12.2(25)SG.
12.2(33)SRA This command was integrated into Cisco IOS Release 12.2(33)SRA.
12.2(33)SXH This command was integrated into Cisco IOS Release 12.2(33)SXH.
Release Modification