CCNA Networking

You can use the show interface command to check for LMI traffic. The show interface command displays information about the encapsulation, as well as layer 2 and layer 3 information.

The show frame pvc command will present you with a list of all configured PVCs and DLCI numbers. It provides the status of each PVC connection and traffic statistics too.

The show frame-relay lmi command will give you the LMI traffic statistics exchanged between the local router and the Frame Relay switch.

Several commands are used frequently to check the status of your interfaces and PVCs once you have Frame Relay encapsulation set up and running. To list them, use the show frame ? command, as seen here

As more vendors migrate to a mesh hierarchical design, and as larger networks are built using lightweight access points, we really need a standardized protocol that governs how lightweight access points communicate with WLAN systems. This is exactly the role filled by one of the Internet Engineering Task Force's (IETF's) latest draft specification, Lightweight Access Point Protocol (LWAPP).

Basically, the split-MAC architecture allows the splitting of 802.11 protocol packets between the Cisco LWAPP-based AP that handles real-time portions of the protocol and the WLAN controller that handles any items that are not time sensitive.

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