B-32
Appendix B: Glossary
MD5 Message Digest 5. A hash algorithm used to create digital signatures. MD5 is
a one-way hash function, which transforms and condenses data into a fixed
string of digits called a message digest. A variety of protocols, including AH
and ESP, use MD5 to check a message’s data integrity as well as authenticate
the sender. The ProCurve Secure Router uses MD5 transformation to encrypt
various system passwords.
Mediation An old style or legacy system still used in the telecom world. This term refers
to the conversion of various telephone properties into a standard Call Detail
Record (CDR) format.
MFR Multilink Frame Relay. See MLFR.
MIB Management Information Base. An SNMP object. The MIB is a database list
of objects and is used to manage entities (such as routers and switches) in an
SNMP-enabled network. Objects in the MIB are defined using Abstract Syntax
Notation One (ASN.1). The database is hierarchical (tree structured) and
entries are addressed through object identifiers. See also SNMP.
MIPS Millions of Instructions Per Second. A general measure of computing perfor-
mance and, by implication, the amount of work a computer can do. Generally,
this refers to the number of instructions that can be processed by the CPU in
a given second.
MLFR MultiLink Frame Relay. A Frame Relay protocol that bundles multiple carrier-
lines together, which allows faster transmission speeds. FRF.15 supports
MLFR end-to-end on a PVC without CO support: both ends of the link must
support MLFR and use the same number of carrier-lines. FRF.16.1 requires CO
support but offers many advantages over FRF.15: the bundle of carrier-lines
can support more than one PVC and endpoints do not have to use the same
number of carrier-lines.
MLPPP Multilink PPP. A line-aggregation protocol that bundles multiple T1 or E1 lines
into a single data link, which greatly increases throughput. MLPPP fragments
and reassembles frames sent over separate channels in the multilink connec-
tion. For more information on Multilink PPP, see RFC 1990 (at http://
www.ietf.org/rfc/rfc1990.txt).
MOSPF Multicast Open Shortest Path First. A multicast Layer 3 routing protocol based
on OSPF. This protocol allows the router to build a multicast forwarding table
for each local group using the additional information included in the MOSPF
messages. For more information on MOSPF, see RFC 1585 (at http://
www.ietf.org/rfc/rfc1585.txt).
MP Multilink PPP. See MLPPP.
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