MPLS Guide List of Acronyms
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BGP-LU border gateway protocol labeled unicast
BITS building integrated timing supply
BMCA best master clock algorithm
BMU broadcast, multicast, and unknown traffic
Traffic that is not unicast. Any nature of multipoint traffic:
• broadcast (that is, all 1s as the destination IP to 
represent all destinations within the subnet)
• multicast (that is, traffic typically identified by the 
destination address, uses special destination address); 
for IP, the destination must be 224.0.0.0 to 
239.255.255.255
• unknown (that is, the destination is typically a valid 
unicast address but the destination port/interface is not 
yet known; therefore, traffic needs to be forwarded to all 
destinations; unknown traffic is treated as broadcast)
BNM bandwidth notification message
BOF boot options file
BoS bottom of stack 
BPDU bridge protocol data unit
BRAS Broadband Remote Access Server
BSC Base Station Controller
BSM bootstrap message
BSR bootstrap router
BSTA Broadband Service Termination Architecture
BTS base transceiver station
CA certificate authority
CAS channel associated signaling
CBN common bonding networks
CBS committed buffer space
CC continuity check
control channel
CCM continuity check message
Table 51 Acronyms  (Continued)
Acronym Expansion