CLI Reference Guide-R01

Chapter 11 | Interface Commands
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show discard This command displays whether or not CDP and PVST packets are being discarded.
Command Mode
Privileged Exec
Example
In this example, “Default” means that the packets are not discarded.
Console#show discard
Port CDP PVST
-------- ------- -------
Eth 1/ 1 No No
Eth 1/ 2 No No
Eth 1/ 3 No No
Eth 1/ 4 No No
Eth 1/ 5 No No
Eth 1/ 6 No No
.
.
.
show interfaces brief This command displays a summary of key information, including operational
status, native VLAN ID, default priority, speed/duplex mode, and port type for all
ports.
Command Mode
Privileged Exec
Command Usage
◆ If an SFP transceiver is inserted in a port, the Type field will show the SFP type
as interpreted from Ethernet Compliance Codes (Data Byte 6 in Address A0h).
The Ethernet Compliance Code is a bitmap value, of which one bit is
supposedly turned on. However, if the read-out is not recognizable (e.g., 2 or
more bits on, or all 0s), the Type field just displays the raw data (hexadecimal
value).
◆ 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., Disabled, STP LBD,
BpduGuard, LinkDet, DynQoS, PortSec, LBD, ATC Bcast, ATC Mcast, UDLD,
License).
Example
Console#show interfaces brief
Interface Name Status PVID Pri Speed/Duplex Type Trunk
--------- --------------- --------- ---- --- ------------- ------------ -----
Eth 1/ 1 Up 1 0 Auto-1000full 1000BASE-T None
Eth 1/ 2 License 1 0 Auto 1000BASE-T None
Eth 1/ 3 License 1 0 Auto 1000BASE-T None
Eth 1/ 4 License 1 0 Auto 1000BASE-T None
Eth 1/ 5 License 1 0 Auto 1000BASE-T None
Eth 1/ 6 License 1 0 Auto 1000BASE-T None
.