|0||LMI for ANSI Annex D or CCITT/ITU-T Q.933A type LMIs|
|1 – 15||Reserved for future use|
|16 – 1007||User traffic|
|1008 – 1022||Reserved for future use|
|1023||Reserved for LMI or and CLLM messages for Cisco-type LMI|
The LMI DLCI in the show interface EXEC command defines the type of LMI being used.
|ANSI||LMI DLCI 0 LMI type is ANSI Annex D frame relay DTE|
|Cisco||LMI DLCI 1023 LMI type is CISCO frame relay DTE|
|CCITT/ITU-T Q.933A||LMI DLCI 0 LMI type is CCITT frame relay DTE|
Router#sh int s0/0 Serial0/0 is up, line protocol is up Hardware is M4T Internet address is 10.10.10.10/24 MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation FRAME-RELAY, crc 16, loopback not set Keepalive set (10 sec) LMI enq sent 75, LMI stat recvd 76, LMI upd recvd 0, DTE LMI up LMI enq recvd 0, LMI stat sent 0, LMI upd sent 0 LMI DLCI 0 LMI type is ANSI Annex D frame relay DTE --- output omitted ---
The ITU Telecommunication Standardization Sector (ITU-T) coordinates standards for telecommunications on behalf of International Telecommunication Union (ITU). The Comité Consultatif International Téléphonique et Télégraphique (CCITT) or International Telegraph and Telephone Consultative Committee was created in 1956. It was renamed to ITU-T in 1993.
Multicasting support is an extension of the LMI specification that allows efficient distribution of routing information and ARP requests across a Frame Relay network. Multicasting uses the reserved DLCIs from 1019 to 1022.