Task 7Using HP OpenView to Create the SNMP Framework
About Discovery Filters
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Basic Dial NMS Implementation Guide
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FilterExpressions {
//
// The following combines the two set filters
// defined above into one FilterExpression.
// It works unmodified as a discovery filter.
// To work as a map filter, network and segment filtering
// must be added (see below).
VitalNodes "All Gateways and Servers" { GatewaysSet || ServersSet }
//
// One can turn the filters defined above into viable map or
// topology filters by simply adding "|| NetsNSegs". (Doing so
// does not invalidate the filters as discovery
// filters. It just adds a superfluous test.)
//
VitalNodesMap "All nets & segs, but only gateway and server nodes"
{ GatewaysSet || ServersSet || NetsNSegs}
LocalLANView "All nets & segs, but only local nodes"
{ LocalLAN || NetsNSegs }
NetInfrastructure "Any network connecting device and what they connect"
{ Routers || Bridges || Hubs || NetsNSegs }
NetBackbone "Networks and gateways/routers"
{ Routers || Networks }
// Using the filters defined above that include only a specific
// network, we can also exclude the specific network like this
// Note the use of the more specific form to exclude only the segments
// in the engineering lan. This could have been specified directly
// as a negation in the filter part, but this form works well if you
// have several networks to manipulate in this manner.
EverythingButEngr "Everything but the engineering LAN"
{ !EngrLan2 }
// Of course the above filter expressions, when used as
// map filters, pass all networks and segments. You
// may wish to see only a particular network. The following map
// filters accomplish this. Note that though segments
// and nodes from other networks will pass the filters, IP Map
// will ignore them because their parent networks will not pass.
// NOTE: These filters will not work as Discovery
// filters because all network and segments automatically pass
// Discovery and Topology filters.
//
MyNetMap "Only the network of interest and all its constituent parts"
{ MyNet || Segments || Nodes}
MyVitalNodesMap "Gateways, servers and segments in the net of interest"
{ MyNet || Segments || GatewaysSet || ServersSet }
TheNetNodeList "This is the filter for TheNet nodeslist
{ TheNetNodes || TheNetFilters }
// This is a map persistence filter which ensures that
// all Ungermann-Bass are kept in memory and up to date.
// Note that this will also keep any containing submaps in memory.
//
PersFilter "Objects to keep in map memory" { UBNodes }
}
