My company would like to experiment with a L2 wireless technology from Motorola called Canopy. Canopy creates high-speed, layer 2, point-to-point links in a metro are using antennas with line-of-sight connections to our buildings. We currently have routers, subnets and serial circuits connecting these buildings. I don't want to convert my network to one huge subnet. I would like to keep my subnets and replace the current T1 lines with DSL lines for backup. I need a routing solution that would use the layer 2 links under normal circumstances to connect subnets but could switch to using the DSL and VPN if the Canopy network went down.
I am thinking using a L3 capable switch somehow but I am not sure how. Any suggestions?
Do you mean something like this: Canopy devices have an ethernet interface on the LAN side but no IP address therefore I don't know how the router would know that the Canopy is down. I was thinking of having a subnet that would be used for all router ethernet interfaces connected to the Canopy network. This way, the next hop IP for the router would be on the other side of the wireless cloud. If the router can't talk to the "remote" IP then the wireless must be down and the router would switch to a higher cost route that would point to the DSL. The question here is: What event makes the router drop a route? The next hop is not physically connected to the router, its just an IP address on a layer 2, ethernet like segment. Will the router ping or ARP for that next hop IP to determine its up/down state?
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.