Category:Cisco Systems -> Routing and Switching
If you need to examine which protocols are eating up all your bandwidth you can use the following command under interface configuration:
ip nbar protocol-discovery
Then you can monitor the outcome filtering top 10 hungry protocols:
show ip nbar protocol-discovery stats bit-rate top-n 10
It is also possible to check the ports that are being used:
ip nbar port-map protocol-name [tcp | udp] port-number
Show statistics:
router# show ip nbar protocol-discovery interface FastEthernet 6/0
FastEthernet6/0
Input Output
Protocol Packet Count Packet Count
Byte Count Byte Count
5 minute bit rate (bps) 5 minute bit rate (bps)
-------- ----------------------- ------------------------
http 316773 0
26340105 0
3000 0
pop3 4437 7367
2301891 339213
3000 0
Snmp 279538 14644
319106191 673624
0 0
. . .
Total 17203819 151684936
19161397327 50967034611
4179000 6620000
