very loud sound coming out of cisco router 2911 in startup?
We've bought a Cisco 2911 router, but it was in the stock for one year and support of the device is expired. now when we power on the device the very loud sound coming out from the device and fans spin in maximum speed.
we changed the fan but nothing changed, also when we did show environment all the things were OK.
Is it a hardware problem? how can I sure what's the root cause of this problem?
Not sure about the 2911, but many of the smaller switches/routers have a multi-speed fan, that on startup is quite noisy; and calms down to a lesser speed within 2-3 minutes after full IOS initialization (when it determines fans don't have to run at full speed).
Is this the only 2911 or similar router you have, to compare with? It is possible the fan has gotten dirty or partly seized up; but the fact you replaced it with another that does the same thing is odd - unless that is "normal" for that router.
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.