If an SVC remains in an idle state for a defined period of time, the call can be terminated. There are some RFCs that cover frame relays on a deeper level. I assure you that these will be worth your time if you're going to work a lot with frame relays. Frame relay in practice Okay, now that we have some theory on frame relays, let's put theory into practice.
We can create frame relay connections using one of the following hardware configurations: Connect routers and access servers directly to the frame relay switch. I'm going to show you the basic frame relay setup because each frame relay setup can be very specific, and I cannot cover all possible configurations in this Daily Drill Down.
My goal is to give you the basic skills for working with frame relays. After that, you'll get an idea of how it works in real life, and I'm sure you'll be able to find a solution for your own specific configuration easily. The router scheme is pretty easy—we have three routers: rtr1, rtr2, and rtr3. The rtr2 router has two serial interfaces serial 0 for rtr1 and serial 1 for rtr3 , to which rtr1 and rtr3 are connected, via serial 0.
We are going to configure rtr2 as a dedicated, DCE-only frame relay switch. To enable frame relay on routers, we have to start from the frame-relay switching command. This enables support for frame relaying and gives us access for other commands.
Now we have to configure our serial interfaces to rtr1 and rtr3. We have to set these interfaces as DCE devices. This can be done with the frame-relay intf-type dce command. The rtr1 and rtr3 interfaces should be configured as DTEs with frame-relay intf-type dte.
Current configuration:! It was set with the frame-relay lmi-type ansi configuration command. If the router or access server is attached to a public data network PDN , the LMI type must match the type used on the public network. Information Author. Cisco Admin. The DLCI field reads c. Article Details Title. URL Name. Summary Briefly describe the article. The summary is used in search results to help users find relevant articles.
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