Show & diagnostics
show interfaces [iface]
Detailed counters and status for one or all interfaces (MAC, bandwidth, duplex, errors).
Works on: Router, Firewall, Switch, Access pointMode: enable
Sample output
GigabitEthernet0/0 is up, line protocol is up
Hardware is Gigabit Ethernet, address is 0201.7d43.389d (bia 0201.7d43.389d)
Internet address is 10.0.0.1/24
MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 1000Mb/s, media type is 10/100/1000BaseTX
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
8 packets input, 784 bytes, 0 no buffer
Received 0 broadcasts (0 multicasts), 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
8 packets output, 784 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
GigabitEthernet0/1 is up, line protocol is up
Hardware is Gigabit Ethernet, address is 0202.7d44.cb6e (bia 0202.7d44.cb6e)
Internet address is 10.0.1.1/24
MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 1000Mb/s, media type is 10/100/1000BaseTX
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
8 packets input, 784 bytes, 0 no buffer
Received 0 broadcasts (0 multicasts), 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
8 packets output, 784 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
Serial0/0/0 is administratively down, line protocol is down
Hardware is WIC MBRD Serial
MTU 1500 bytes, BW 1544 Kbit/sec, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation HDLC, loopback not set
Keepalive set (10 sec)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/secTruncated at 40 of 60 lines — run it in the lab for the full output.
Captured from the NetForge-AI simulator running a real topology.
Run this command live
Don't just read it — type show interfaces [iface] in a real network simulator in your browser and watch it take effect. No install, no account needed to start.
Frequently asked
What does the "show interfaces [iface]" command do?
Detailed counters and status for one or all interfaces (MAC, bandwidth, duplex, errors).