active attachment circuit—The link that is actively forwarding traffic between the DHD and the active PoA.
active PW—The pseudowire that is forwarding traffic on the active PoA.
BFD—bidirectional forwarding detection.
DHD—dual-homed device. A node that is connected to two switches over a multichassis link aggregation group for the purpose of redundancy.
DHN—dual-homed network. A network that is connected to two switches to provide redundancy.
H-VPLS—Hierarchical Virtual Private LAN Service.
ICC—Interchassis Communication Channel.
ICCP—Interchassis Communication Protocol.
ICPM—Interchassis Protocol Manager.
ICRM—Interchassis Redundancy Manager.
LACP—Link Aggregation Control Protocol.
LAG—link aggregation group.
LDP—Link Distribution Protocol.
PoA—point of attachment. One of a pair of switches running multichassis link aggregation group with a DHD.
standby attachment circuit—The link that is in standby mode between the DHD and the standby PoA.
standby PW—The pseudowire that is in standby mode on either an active or a standby PoA.
uPE—user-facing Provider Edge.
VPLS—Virtual Private LAN Service.
VPWS—Virtual Private Wire Service.