label edge router
<networking> (LER) A device that sits at the edge of an MPLS domain, that
uses routing information to assign labels to datagrams and then forwards them
into the MPLS domain.
(1999-06-14)
Nearby terms:
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switched path » label switching » Label Switching
Router
label switched path
<networking> (LSP) The specific path through a network that a datagram
follows, based on its MPLS labels.
(1999-06-14)
Nearby terms:
L6 « la « label edge router « label switched path
» label switching » Label Switching Router » Lab for
Computer Science
label switching
<networking> An attempt to combine the best attributes of layer two
switching (as in ATM and Frame Relay) with the best attributes of the layer
three routing (as in IP).
The key concept in label switching is identifying and marking IP datagrams with
labels and forwarding them to a modified switch or router, which then uses the
labels to switch the datagrams through the network. The labels are created and
assigned to IP datagrams based upon the information gathered from existing IP
routing protocols.
Prior to the formation of the MPLS Working Group in 1997, a number of vendors
had announced and/or implemented proprietary label switching.
(1999-06-14)
Nearby terms:
la « label edge router « label switched path «
label switching » Label Switching Router » Lab
for Computer Science » Laboratory INstrument
Computer
Label Switching Router
<networking> (LSR) A device that typically resides somewhere in the
middle of a network and is capable of forwarding datagrams based upon a label.
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.
(1999-06-14)
Nearby terms:
label edge router « label switched path « label
switching «
Label Switching Router » Lab for Computer
Science » Laboratory INstrument Computer »
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