Hi i am trying to figure out some of the options we have setup on the serial port of a 2600 router we have. The serial is used by a t1 controller card heres the config:
ip address 192.168.0.1 255.255.255.240
no ip directed-broadcast
no ip route-cache
Can someone tell me what the fair-queue would be used for? Is it used in this case to give all packets the same priority?
fair-queue was a queuing mechanism which would analyze traffic through an interface, identify conversations within that traffic, characterize the conversations as to their bandwidth requirements, and would allow conversations with lower requirements (perhaps like a user telnet session) to access the interface more quickly and would make conversations with higher requirements (perhaps like an FTP file transfer) to wait more for the interface access.
In general fair-queue is more effective on lower speed interfaces and less effective on higher speed interfaces. I have also seen instances (for example auto-install running over a serial interface with Frame Relay encapsulation where the autoinstall would disable fair-queue on the interface).
Since fair queue is disabled on this interface then all packets would be treated in first in first out order.