List of Acronyms
486
Basic System Configuration Guide
3HE 11010 AAAC TQZZA Edition: 01
AS autonomous system
ASAP
any service, any port
ASBR autonomous system boundary router
ASM any-source multicast
autonomous system message
ASN autonomous system number
ATM asynchronous transfer mode
ATM PVC ATM permanent virtual circuit
B3ZS bipolar with three-zero substitution
Batt A battery A
B-bit beginning bit (first packet of a fragment)
Bc committed burst size
Be excess burst size
BECN backward explicit congestion notification
Bellcore Bell Communications Research
BFD bidirectional forwarding detection
BGP border gateway protocol
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 destinatio
n IP to
re
present all destinations within the subnet)
• multicast (that is, traffic typically identified by th
e
d
estination address, uses special destination address);
for IP, the destination must be 22
4.0.0.0 to
2
39.255.255.255
• unknown (that is, the destination is
typically a valid
u
nicast address but the destination port/interface is
not
yet kn
own; therefore, traffic needs to be forward
ed to all
de
stinations; unknown traffic is treated as broadcast)
BNM bandwidth notification message
Table 62 Acronyms (Continued)
Acronym Expansion
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