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Chapter 10
Wide Area Networking Protocols
LMI enq sent 451751,LMI stat recvd 451750,LMI upd recvd
164,DTE LMI up
LMI enq recvd 0, LMI stat sent 0, LMI upd sent 0
LMI DLCI 1023 LMI type is CISCO frame relay DTE
Broadcast queue 0/64, broadcasts sent/dropped 0/0,
interface broadcasts 839294
The show interface command displays line, protocol, DLCI, and LMI
information.
The Show Frame Map Command
The show frame map command will show you the Network layertoDLCI
mappings.
RouterB#show frame map
Serial0 (up): ipx 20.0007.7842.3575 dlci 16(0x10,0x400),
dynamic, broadcast,, status defined, active
Serial0 (up): ip 172.16.20.1 dlci 16(0x10,0x400),
dynamic, broadcast,, status defined, active
Serial1 (up): ipx 40.0007.7842.153a dlci 17(0x11,0x410),
dynamic, broadcast,, status defined, active
Serial1 (up): ip 172.16.40.2 dlci 17(0x11,0x410),
dynamic, broadcast,, status defined, active
Notice that the serial interface has two mappings, one for IP and one for
IPX. Also, notice that the Network layer addresses were resolved with the
dynamic protocol Inverse ARP (IARP). If an administrator mapped the
addresses, the output would say "static."
After the DLCI number is listed, you can see some numbers in parenthe-
ses. Notice the first number is 0x10, which is the hex equivalent for the DLCI
number 16 used on serial 0, and the 0x11 is the hex for DLCI 17 used on
serial 1. The second numbers, 0x400 and 0x410, are the DLCI numbers con-
figured in the Frame Relay frame. They are different because of the way the
bits are spread out in the frame.
To clear the dynamic mappings, you can use the clear frame-relay-inarp
command.
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