Label Switching Router
(LSR) A device that typically resides somewhere in the middle of a network and is capable of forwarding datagrams by label switching. In many cases, especially early versions of MPLS networks, a LSR will typically be a modified ATM switch that forwards datagrams based upon a label in the VPI/VCI field.
Last updated: 1999-06-14
Nearby terms:
label switching ♦ Label Switching Router ♦ Lab for Computer Science
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