Chapter 11
| Interface Commands
Interface Configuration
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◆ The Type field will always display “NA” for a trunk entry because a trunk allows
for mixed port types such as 1000BASE-T and 1000BASE SFP.
◆ If link status is down due to an administrative setting or the result of a protocol
state, the reason will be listed in the Status field (i.e., STP LBD, BpduGuard,
LinkDet, DynQoS, PortSec, LBD, ATC Bcast, ATC Mcast, UDLD).
Example
Console#show interfaces brief
Interface Name Status PVID Pri Speed/Duplex Type Trunk
--------- ----------------- --------- ---- --- ------------- ------------ -----
Eth 1/ 1 Down 1 0 Auto 1000BASE-T None
Eth 1/ 2 Down 1 0 Auto 1000BASE-T None
Eth 1/ 3 Down 1 0 Auto 1000BASE-T None
Eth 1/ 4 Down 1 0 Auto 1000BASE-T None
Eth 1/ 5 Down 1 0 Auto 1000BASE-T None
Eth 1/ 6 Down 1 0 Auto 1000BASE-T None
.
.
.
show interfaces
counters
This command displays interface statistics.
Syntax
show interfaces counters [interface]
interface
ethernet unit/port
unit - Unit identifier. (Range: 1-8)
port - Port number. (Range: 1-28/52)
port-channel channel-id (Range: 1-16)
Default Setting
Shows the counters for all interfaces.
Command Mode
Normal Exec, Privileged Exec
Command Usage
If no interface is specified, information on all interfaces is displayed.
Example
Console#show interfaces counters ethernet 1/1
Ethernet 1/ 1
===== IF table Stats =====
2166458 Octets Input
14734059 Octets Output
14707 Unicast Input
19806 Unicast Output
0 Discard Input
0 Discard Output
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