Protocol Discovery

Contributed by larkspur December 19, 2005  
Tagged: Cisco router

Check and customize what protocols are running through your router with nbar protocol-discovery. this gives you packet count, byte count, 5 min bit rate, and 5 min max bit rate.

first you need to enable nbar

routers>en
router#conf t
router(config)#int serial 0
router(conf-if)#ip nbar protocol-discovery

to customize ports

router(config)#ip nbar custom

to view

router#sh ip nbar protocol-discovery