ip nbar protocol discovery counts bitrate only in one way

[fisko]

Hi I setup the ip nbar protocol discovery on my interfaces. When i type "sh ip nbar protocol discovery" I have only inbount counting for all protocols and outbound is always 0. For serial interface the situation is oposite.Can someone explain this?

THANKS!!!!

[a-vazquez]

This is because when you enable "ip nbar protocol discovery" on a inbound interface the traffic in that direction will increase and that is shown in the "sh ip nbar protocol discovery". If it is enabled on a outbound interface like serial interface then the traffic in that direction will increase and hence the "out" counter will increase.

[fisko]

Yes but what about replays for a particular protocol.How does that count?

I just see what comming in the ethernet and see what comming out from serial.

How can I see what comming in serial and comming out from ethernet ?