topic Re: CST: %CONTROLLER-5-UPDOWN:Controller E1 0/0/0,change state to down(AIS detected) in Wireless

CST: %CONTROLLER-5-UPDOWN:Controller E1 0/0/0,change state to down(AIS detected)

Rps-Cheers — Mon, 05 Jul 2021 15:11:34 GMT

HI My friends; What is the meaning of these logs? Is there any potential problem? Is there any solution? CST：%CONTROLLER-5-UPDOWN：Controller E1 0/0/0,change state to up CST: %LINK-3-UPDOWN: Interface Serial0/0/0:0,change state to up CST: %LINEPROTO-5-UPDOWN:Line protocol on Interface Serial0/0/0:0.change state to up CST: %CONTROLLER-5-UPDOWN:Controller E1 0/0/0,change state to down(AIS detected)

Re: CST: %CONTROLLER-5-UPDOWN:Controller E1 0/0/0,change state to down(AIS detected)

Flavio Miranda — Wed, 31 Jan 2018 12:19:39 GMT

Hi,

The CONTROLLER on the present log is not Wireless Lan Controller. This message came from, mostly probably, a Router running some voice gateway. The cause of it can be lost of sync with the service provider.

By the way AIS stand for Alarm Indication Signal.

-If I helped you somehow, please, rate it as useful.-

Re: CST: %CONTROLLER-5-UPDOWN:Controller E1 0/0/0,change state to down(AIS detected)

Rps-Cheers — Fri, 02 Feb 2018 01:18:18 GMT

Yes, this is not a wireless controller. It is an alarm on an ISR device. I suspect it is a problem with the ISP. This problem may be caused by what the operator does.

Re: CST: %CONTROLLER-5-UPDOWN:Controller E1 0/0/0,change state to down(AIS detected)

Rps-Cheers — Thu, 08 Feb 2018 08:33:19 GMT

I think this is a problem for ISP. Similar to alerts such as AIS and LOS, it seems to be a WAN problem. The factors related to the problem are equipment WAN interfaces, circuits,ISP' lines, etc.