Interface Status in Router

[Hemakumar Sampath]

Why does the Ethernet Interface is showing Up and down state when a cable is not connected. Is this a problem if not please let me know why it behaves when compared to Serial interface.

[Richard Burts]

That should not be a problem. Ethernet and Serial are very different technologies, the chip sets in the interfaces are very different, their physical protocols are very different, and the behavior of their interfaces is therefore different.

HTH

Rick