Supported Platforms
Displaying Real-Time Interface Information
Enter the monitor interface command to display real-time traffic, error, alarm, and filter statistics about a physical or logical interface:
Replace interface-name with the name of a physical or logical interface. If you specify the traffic option, statistics for all active interfaces display.
The real-time statistics update every second. The Current delta and Delta columns display the amount the statistics counters have changed since the monitor interface command was entered or since you cleared the delta counters. Table 1 and Table 2 list the keys you use to control the display using the interface-name and traffic options. (The keys are not case sensitive.)
Table 1: CLI monitor interface Output Control Keys
Key | Action |
|---|---|
c | Clears (returns to 0) the delta counters in the Current delta column. The statistics counters are not cleared. |
f | Freezes the display, halting the update of the statistics and delta counters. |
i | Displays information about a different interface. You are prompted for the name of a specific interface. |
n | Displays information about the next interface. The device scrolls through the physical and logical interfaces in the same order in which they are displayed by the show interfaces terse command. |
q or ESC | Quits the command and returns to the command prompt. |
t | Thaws the display, resuming the update of the statistics and delta counters. |
Table 2: CLI monitor interface traffic Output Control Keys
Key | Action |
|---|---|
b | Displays the statistics in units of bytes and bytes per second (bps). |
c | Clears (returns to 0) the delta counters in the Delta column. The statistics counters are not cleared. |
d | Displays the Delta column instead of the rate column—in bps or packets per second (pps). |
p | Displays the statistics in units of packets and packets per second (pps). |
q or ESC | Quits the command and returns to the command prompt. |
r | Displays the rate column—in bps and pps—instead of the Delta column. |
The following are sample displays from the monitor interface command:
host1 Seconds: 5 Time: 04:38:40
Delay: 3/0/10
Interface: fe-0/0/0, Enabled, Link is Up
Encapsulation: Ethernet, Speed: 1000mbps
Traffic statistics: Current delta
Input bytes: 885405423 (3248 bps) [2631]
Output bytes: 137411893 (3344 bps) [10243]
Input packets: 7155064 (2 pps) [28]
Output packets: 636071 (1 pps) [23]
Error statistics:
Input errors: 0 [0]
Input drops: 0 [0]
Input framing errors: 0 [0]
Policed discards: 0 [0]
L3 incompletes: 0 [0]
L2 channel errors: 0 [0]
L2 mismatch timeouts: 0 [0]
Carrier transitions: 1 [0]
Output errors: 0 [0]
Output drops: 0 [0]
Aged packets: 0 [0]
Active alarms : None
Active defects: None
Input MAC/Filter statistics:
Unicast packets 73083 [16]
Broadcast packets 3629058 [5]
Multicast packets 3511364 [3]
Oversized frames 0 [0]
Packet reject count 0 [0]
DA rejects 0 [0]
SA rejects 0 [0]
Output MAC/Filter Statistics:
Unicast packets 629555 [28]
Broadcast packets 6494 Multicast packet [0]
 | Note: The output fields that display when you enter the monitor interface interface-name command are determined by the interface you specify. |
Interface Link Input packets (pps) Output packets (pps) fe-0/0/0 Up 42334 (5) 23306 (3) fe-0/0/1 Up 587525876 (12252) 589621478 (12891)
