1 © 2000, Cisco Systems, Inc. Managing Networks, Managing Networks, Users & Applications in Users & Applications in the New Millennium the New Millennium John Thomas John Thomas johnthom johnthom @cisco.com @cisco.com 2 © 2000, Cisco Systems, Inc. Agenda Agenda • What is Network Management? • Current Architecture(s) • Two New Architectures • Examples • Concluding Remarks 3 © 2000, Cisco Systems, Inc. Network Management’s Network Management’s Primary Role Primary Role • Validate user experience connectivity, response times • Anticipate network change failures, growth, user mobility, new apps online • Enforce conformance with corporate policies user auditing/control, user/application differentiation • Report findings to management who’s not happy, what’s my ROI • Identify how to leverage network as an asset marketing! 4 © 2000, Cisco Systems, Inc. NetMgmt NetMgmt Must Grow w/ Must Grow w/ Networking Trends Networking Trends • Users more mobile, demanding & skilled expected to conform to corporate policies (e.g. URL blocking) • Applications more delay sensitive, bandwidth hungry (aka multimedia) unsupported apps on network (e.g. DOOM) • Both Users & Applications Have Increased dependency on network Require Service Level differentiation 5 © 2000, Cisco Systems, Inc. NetMgmt NetMgmt Must Grow w/ Must Grow w/ Networking Trends Networking Trends • New Network Designs Intranets Extranets VPNs • Traffic Patterns (e.g. unexpected congestion points) increasingly short-lived “flows” (e.g. WEB) dynamic ports encryption n-tiered architectures 6 © 2000, Cisco Systems, Inc. Agenda Agenda • What is Network Management? • Current Architecture(s) • Two New Architectures • Examples • Concluding Remarks 7 © 2000, Cisco Systems, Inc. Management Instrumentation & Control Mechanisms Current Network Management Current Network Management Architecture Architecture Intelligent Network Devices High Performance, Robust Network Infrastructure SNMP, RMON, Telnet, ICMP Standards- based protocols e.g. HP OV Cisco Apps SAP BMC Patrol NMS Platform MRTG 3rd Party Apps SNMP NMS Framework 8 © 2000, Cisco Systems, Inc. SNMP owned the ‘90s SNMP owned the ‘90s • Motivation behind SNMP manage heterogeneous networking devices (not systems, users or applications) enhancement of SGMP console consolidation • SNMP “Architecture” Intelligent Managers, dumb Agents TRAP-directed polling (unreliable) Clear-text communities MIBs document what is available from a device 9 © 2000, Cisco Systems, Inc. SNMP SNMP Needs help in the ‘00s Needs help in the ‘00s • SNMP is “practical” & will live-on, but Security in V3 required for more configuration control Unwieldy instancing/indexing makes life difficult Not Extranet friendly (typically not allowed thru FW) MIB’s continue to pro-create, but don’t define relationships 10 © 2000, Cisco Systems, Inc. NMS/Frameworks NMS/Frameworks • Still useful eliminate duplication of efforts (e.g. fault mgmt) provide structured, documented integration • But - Proprietary APIs slow development from ISVs Integration today requires application co-location, which complicates software install system admin & maintenance Common place to represent each device, but not store it’s information [...]... applicable to all knowledge domains • Common Models Information common to particular management areas, but independent of a particular technology or implementation Include Systems, Applications, Devices, Networks, Databases, and Events • Extension Models Represent vendor or technology-specific extensions that are often dependent on a particular environment or platform © 2000, Cisco Systems, Inc 18 Why... it, and It provides information containment, security and descriptive power” John Strassner - the father of DEN © 2000, Cisco Systems, Inc 34 CIM / DEN Value Proposition • Integration of end systems, networks, and users into one coherent model Common model enables centralized repository for common information Common representation of information enables different applications to share and reuse data . 1 © 2000, Cisco Systems, Inc. Managing Networks, Managing Networks, Users & Applications in Users & Applications. particular technology or implementation. Include Systems, Applications, Devices, Networks, Databases, and Events • Extension Models Represent vendor or technology-specific