Chapter 14 Netra Proxy Cache Server SNMP MIB

• "Netra Proxy Cache Software MIB Definitions"

• "Traps"

This chapter defines the variables in the Management Information Bases (MIBs), shipped with the Netra Proxy Cache product. These MIBs enable you to use an SNMP-conformant management platform, such as Solstice Domain Manager, to monitor your Netra Proxy Cache Server.

The following MIBs are shipped with the Netra Proxy Cache product;

• one for the Netra Proxy Cache (proxy cache) software (proxycache.mib)

• one for the array software (scalrd.mib)

• the standard Sun MIB The MIB for the array software is described in the Netra Proxy Cache Array User's Manual. (sun.mib)

• the SNMP master agent for Solstice Enterprise Agents (snmpdx.mib)

These MIBs are stored in /var/snmp/mib. Only the first two MIBs are described in this chapter.

A MIB contains attributes that collectively describe a network-accessible object. The proxy/cache MIB describes the proxy/cache server; the array MIB describes the software that joins a set of Netra Proxy Cache servers to provide a single proxy cache server instance.

MIB attributes are categorized by groups and tables.

Netra Proxy Cache Software MIB Definitions

Table 14-1 lists the groups and tables in the inpgcache.mib file.

Table 14-1 Netra Proxy Cache Software MIB Definitions

Group or Table
Attribute Name	Description
proxyConfGroup
proxyDescription	Proxy server description
proxyLocation	Full pathname of server software
proxyPort	Port number on which the server is listening
proxyMethods	Methods supported by the server (GET, PUT, POST, and others)
proxyProtocol	HTTP version number
proxyVersion	Server software version number
proxyContact	Contact person for server
proxyHang	Server response status: 1--response received; 0--no response
proxyCacheGroup
cacheMemEntry	Number of entries in main memory
cacheSwapEntry	Number of entries on disk
proxyClientStatGroup
currentConnections	Number of current client-established connections
idleConnections	Number of current client idle connections
currentSSLConnections	Number of current client-established SSL connections
totalSSLConnections	Number of total (cumulative) client SSL connections
httpConnectionRate	Client HTTP connection rate (connections per second)
httpRequestRate	Client ICP request rate (requests per second)
icpRequestRate	Client ICP request rate (requests per second)
keepaliveRequested	Number of requested keep-alives
keepaliveOffered	Number of offered keep-alives
keepaliveUsed	Number of used keep-alives
protoTable
protoName	Protocol name
protoObjCount	Object count
protoSpaceUsage	Space usage (KB)
protoAccess	Total number of accesses (hits + misses)
protoHits	Number of cache hits
protoHitRatio	Hit percentage (hits/total access)

Traps

SNMP provides for traps. A trap enables you to be notified of a specified event on (usually) a remote machine. You must use an SNMP-conformant management platform, such as Solstice Domain Manager, to be able to receive notice of a trap.

The proxy cache software supports a single trap, serverNoResponse. This trap occurs when the proxy cache service terminates on a Netra Proxy Cache Server.