Lab Minutes Forum

Technical Discussion => Routing and Switching => Topic started by: amsa on January 16, 2018, 02:02:48 PM

Title: interface state on Router
Post by: amsa on January 16, 2018, 02:02:48 PM
Hello all,

What is the reason for change interface state?
And sometimes the router hanging and disconnect with E1 sites, then I must do reload the Router.

*Jan 11 08:28:26.815: %CONTROLLER-5-UPDOWN: Controller E1 4/0/1, changed state to down (LOS detected)

*Jan 11 08:28:28.815: %LINK-3-UPDOWN: Interface Serial4/0/1:0, changed state to down

*Jan 11 08:28:29.815: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial4/0/1:0, changed state to down

*Jan 11 08:39:22.815: %CONTROLLER-5-UPDOWN: Controller E1 4/0/1, changed state to up

*Jan 11 08:39:24.815: %LINK-3-UPDOWN: Interface Serial4/0/1:0, changed state to up

*Jan 11 08:39:25.815: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial4/0/1:0, changed state to up

*Jan 11 08:39:33.815: %CONTROLLER-5-UPDOWN: Controller E1 4/0/1, changed state to down (RAI detected)

*Jan 11 08:39:34.815: %CONTROLLER-5-UPDOWN: Controller E1 4/0/1, changed state to up
Title: Re: interface state on Router
Post by: MC on January 28, 2018, 09:22:00 PM
Start with physical layer and check cable. You then want to make sure the line settings and config match on both sides. If the other side is a provider, you will need to work with them to confirm. Other final things you can try is trying different E1 port/module, or software upgrade.
Title: Re: interface state on Router
Post by: amsa on February 01, 2018, 06:54:06 AM
Thanks MC

almost I did it that steps but I didn't upgrade IOS
Title: Re: interface state on Router
Post by: MC on February 01, 2018, 08:30:43 PM
Glad the issue is resolved.
Title: Re: interface state on Router
Post by: amsa on February 05, 2018, 01:40:43 PM
No, not solved :'( :'( :'(