Completely passive in the meaning of no processing components? Yes, it is passive in that respect. Completely passive in the meaning of just traces and connectors? No.
There are electronic components on it. We found this out the hard way as appearently a capacitor on the backplane board shorted out and caught fire in our core 4507 at our old Data Center. Cisco had the serial number listed as a 2950, and it was fun getting it replaced. It took out both Sup IVs, and an interface card with actual fire damage. We were lucky the fire supression system was not activated, as in this facility it is water (dry charge).
We had a physical standby to replace this and we lost only a single hour on a Saturday Evening in an unmanned facility. If you have a critical point of failure, a cold spare would be advisable, to include the chassis.
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.