network management: standards internet internet engineering task force (ietf) operations and...
TRANSCRIPT
NETWORK MANAGEMENT: STANDARDS
INTERNET• INTERNET ENGINEERING TASK FORCE (IETF)
• OPERATIONS AND MANAGEMENT AREA• SNMP
ISO• ISO-IEC/JTC 1/WG 4
• OSI• CMIP-CMIS
ITU-T• SG IV• TMN
OTHERS• DMTF
• TM FORUM• OMG• IEEE
• ...
Copyright © 2001 by Aiko Pras
These sheets may be used for educational purposes
CHARACTERISTICS
IETF• MANAGEMENT SHOULD BE SIMPLE• VARIABLE ORIENTED APPROACH
• MANAGEMENT INFORMATION EXCHANGES MAY BE UNRELIABLE
ISO• MANAGEMENT SHOULD BE POWERFUL
• OBJECT ORIENTED APPROACH• MANAGEMENT INFORMATION MUST BE EXCHANGED IN A RELIABLE
FASHION
TMN• DEFINES ONLY A MANAGEMENT ARCHITECTURE
• THE ACTUAL PROTOCOLS ARE THOSE OF OSI• OUT-OF-BAND MANAGEMENT
HISTORY
1980 1982 1984 1986 1988 1990 1992 1994 1996 1998 2000
SNMP
OSI
TMN
MARKET SHARE
NUMBER OF AGENTS?
NUMBER OF MANAGERS?
MONEY?
FOR SPECIFIC ENVIRONMENTS?• IBM MAIN-FRAMES
• PRIVATE DATA LANs• PRIVATE DATA WANs
• PABX• PUBLIC VOICE NETWORKS• PUBLIC DATA NETWORKS
WHY DID SNMP SUCCEED?
• STANDARDS CAN BE OBTAINED FOR FREE
• STANDARDS ARE AVAILABLE FROM FTP & WWW SERVERSIN AN ELECTRONIC FORM
• RAPID DEVELOPMENT OF STANDARDS
• PROTOTYPES MUST DEMONSTRATE THE NEED FOR,AND THE FEASIBILITY OF STANDARDS
IETF STANDARDIZATION
W O R KIN GD O C U M EN T
PROPOSEDSTANDARD
FULLSTANDARD
HISTORICAL
HISTORICAL
implementationexperience
after a maximum
after a maximumof 4 years
of 2 years
several independentimplementationsmust interwork
must be obtained
DRAFTSTANDARD
ISO STANDARDIZATION
W O R KIN GD O C U M EN T
COMMITTEEDRAFT
FULLSTANDARD
TECHNICAL REPORT
TECHNICAL REPORT
nobodyimplements!
still nobodyimplements!!
DRAFTINTERNATIONAL
STANDARD
SNMP HISTORY
pro
pos
ed
s ta
nd
ard
imp
lem
enta
t ion
e xpe
r ien
ce1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999
CMOT
SGMP
HEMS/HEMP
SNMPSNMP
SMPSNMPv2(parties)security
SNMPv2(community) SNMPv3
dr a
fts t
an
dar
d
full
s ta
nd
ard
his
toric
pr o
po
s ed
s ta
nda
r d
dr a
fts t
an
dar
d
pro
pos
ed
s ta
nd
ard
dr a
fts t
an
dar
d
OSI HISTORY
1980 1982 1984 1986 1988 1990 1992 1994 1996 1998 2000
SC21/WG4
SYSTEMS MGT.
ESTABLISHED
OVERVIEW
MANAGEMENT FUNCTIONS
MANAGEMENTFRAMEWORK
CMIS/CMIP
TMN HISTORY
1980 1982 1984 1986 1988 1990 1992 1994 1996 1998 2000
WORK ON TMNSTARTED BY SGIV
M30
IDEAS FROM OSI MGT.
M3010
M3010 (rev.)
WORK STARTED ON DERIVED STANDARDS
RESPONSIBILITY MODEL PART OF MAIN TEXT
RESPONSIBILITY MODEL BECAME ANNEX