cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
1252
Views
0
Helpful
2
Replies

Router#test interfaces serial 0

aadilovic
Level 1
Level 1

Hi, i get this message when testing the serial 0 interface:

Router#test interfaces serial 0

... Failed - timeout problem

What could it be?

Thx

2 Replies 2

jbohla
Level 1
Level 1

I think you have to increase the time-out if the device is remote, and reduce time-out errors if the problem is on the network.

mohammedmahmoud
Level 11
Level 11

Hi,

The test interfaces EXEC command is intended for the factory checkout of network interfaces. It is not intended for diagnosing problems with an operational router, i've used it and i got the same results you've got. The test interfaces output does not report correct results if the router is attached to a "live" network. For each network interface that has an IP address that can be tested in loopback (MCI and ciscoBus Ethernet and all serial interfaces), the test interfaces command sends a series of ICMP echoes. Error counters are examined to determine the operational status of the interface.

http://www.cisco.com/en/US/products/ps6350/products_command_reference_chapter09186a0080444c52.html#wp1039111

HTH,

Mohammed Mahmoud.

Getting Started

Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community:

Innovations in Cisco Full Stack Observability - A new webinar from Cisco