Naming, Trading, Directory and Discovery Services (CDK â chap.9)
Naming, Trading, Directory and Discovery Services (CDK â chap.9)
Naming, Trading, Directory and Discovery Services (CDK â chap.9)
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Global <strong>Directory</strong> <strong>Services</strong>Large number of different network directories:-InternetDNS, SNMP MIBSGSM WirelessHLR, VLR, TMN MIBSHLR (Home Location Register) contains user information such asaccount information, account status, user preferences, features subscribedto by the user, user's current location, etc. The data stored in HLRs for thedifferent types of networks is similar but does differ in some details.VLR (Visitor Location Register) – when roamingTMN = Telecommunications Management NetworkNetwork Operating SystemsSun NIS++, Novel NDS, Microsoft ADSMotivation to create more “intelligent” global network by makingdirectory services more interoperable• IETF DEN <strong>Directory</strong> Enabled Networking (CISCO, MS)• LDAP a common directory access protocolIan Johnson 68 Distributed Systems
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