Data Link Connection Identifier

<networking> (DLCI) A channel number which is attached to data frames to tell a Frame Relay network how to route the data.

In Frame Relay, multiple logical channels are multiplexed over a single physical channel.

The DLCI says which of these logical channels a particular data frame belongs to.

(http://www.etinc.com/frmain.htm#whatsadlci).

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