OpenView Network Node Manager: Designing and Implementing an by John Blommers

OpenView Network Node Manager: Designing and Implementing an by John Blommers

By John Blommers

* Architecting, designing, imposing, and coping with NNM recommendations concerning networks, laptop pcs, and UNIX servers * All examples were utilized in real implementations * Covers potential making plans, firewall upkeep, cross-platform and best-practice issuesThe purely whole, sensible advisor to HP community Node Manager!HP's OpenView community Node supervisor (NNM) is the industry's strongest platform for enterprise-wide IP community administration in keeping with SNMP criteria. Now, certainly one of HP's top NNM experts has written the definitive, best-practices consultant to imposing and handling OpenView NNM.OpenView community Node supervisor covers making plans, structure, deployment, configuration, management, staffing, functionality, firewalls, troubleshooting, and extra. it's also 8 various case stories, directly from the author's vast NNM event in nearly each community surroundings: worldwide brands, laptop companies, consultancies, engineering and clinical businesses, faculties, and lots of extra. insurance comprises: * Enterprise-class NNM deployment making plans: standards, operations agreements, sizing and choice, piloting, and past * Staffing, education, administration domain names, and organizing community administration for optimum potency * Deploying trustworthy, actual, constant and viable area identify providers * Autodiscovering your community, refining the implications to mirror your topology, and dealing with community maps * NNM daily upkeep, occasion and function administration, optimization, and problem-solvingFrom daily management to long term suggestions, safety to cross-platform concerns, John Blommers promises particular solutions you could rely on to maximise the worth of OpenView NNM-and your whole firm community.

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Extra info for OpenView Network Node Manager: Designing and Implementing an Enterprise Solution

Sample text

For example, devices that don t communicate with other devices on remote subnets won t have ARP cache entries in the local routers. In such cases, just manually pinging these devices on the NNM system will let NNM discover them. This is because the netmon daemon listens on a raw ICMP (internet control message protocol) socket, picks up the pinging activity, and harvests the responding device s IP address. Initially, as new subnets and routers are discovered and managed, you will want to allow NNM to redraw the Internet submap.

There is sometimes a need to capture an ovw map when troubleshooting a problem, documenting a process, or sharing information. UNIX, Windows, and Macintosh systems acting as X-terminals for NNM are able to take screenshots and process them with native graphics applications. To capture a map, an NNM map snapshot (pulldown menu Map:Snapshot) can be taken. This creates a named read-only navigable map, rather than a screen capture. Modern networks increasingly contain special devices such as routers with secondary and software loopback addresses, multihomed hosts, devices with transient IP addresses obtained from DHCP, virtual LANs (VLAN), adapters (such as HSSI) with numerous subinterfaces, and frame relay links.

The server administrator does not want NNM to manage their web service, just their equipment. For another example, consider the network staff that manages the Internet access routers. They monitor the CPU utilization for these routers, which may have huge routing tables. Each SNMP request for a routing table entry is CPU intense. Needless NNM queries of the routing table (a standard aspect of autodiscovery) can raise a router CPU to nearly 100% utilization. It can be difficult to downplay this by noting that the SNMP process in a router has low priority.

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