show interface


show interface <INTERFACE-NAME> [queues] [vsx-peer]


Shows interface-level configuration, including any QoS settings that may override the global settings on the switch.

Command context

Operator (>) or Manager (#)



Specifies the name of an interface on the switch. Format: member/slot/port.


Show queue statistics.


Shows the output from the VSX peer switch. If the switches do not have the VSX configuration or the ISL is down, the output from the VSX peer switch is not displayed. This parameter is available on switches that support VSX.


Operators or Administrators or local user group members with execution rights for this command. Operators can execute this command from the operator context (>) only.


Statistics include:

  • Tx Bytes: Total bytes transmitted. The byte count may include packet headers and internal metadata that are removed before the packet is transmitted. Packet headers added when the packet is transmitted may not be included.
  • Tx Packets: Total packets transmitted.
  • Tx Errors: Shows the amount of traffic dropped on an egress interface before being sent. When traffic cannot be forwarded out an egress interface, it backs up on ingress. The more servicing assigned to a queue by a schedule profile, the less likely traffic destined for that queue will back up and be dropped. Tx Errors shows the sum of packets that were dropped across all line modules (due to insufficient capacity) by the ingress Virtual Output Queues (VOQs) destined for the egress port. As the counts are read separately from each line module, the sum is not an instantaneous snapshot.
  • Tx Byte Depth: Largest byte depth (or high watermark) found on any ingress line module Virtual Output Queue (VOQ) destined for the egress port.


Showing settings for interface 1/1/5:

switch# show interface 1/1/5
Interface 1/1/5 is down (Administratively down)
 Admin state is down
 State information: admin_down
 Hardware: Ethernet, MAC Address: aa:55:aa:55:00:29
 MTU 1500
 qos trust cos
 qos schedule-profile default
 qos cos 4 (not applied)
 qos dscp 46 (not applied)
 rate-limit broadcast 500 kbps
 rate-limit multicast 4000 pps
 Speed 0 Mb/s
 Auto-Negotiation is turned on
 Flow-control: off

Showing queue statistics for interface 1/1/5:

switch# show interface 5 queues
Interface 5 is down
 Admin state is up
                 Tx Bytes      Tx Packets       Tx Errors
 Q0                     0               0               3
 Q1                 15356              73               0
 Q2                     0               0               0
 Q3                     0               0               0
 Q4                     0               0               0
 Q5                     0               0               0
 Q6                     0               0               0
 Q7                     0               0               0