SNMP Proxies

As illustrated in Figure 22-1, WebLogic's SNMP agent also can act as a proxy for other SNMP agents, allowing you to gate traffic from multiple SNMP agents through a single master WebLogic SNMP agent. Each SNMP proxy is configured with a particular branch OID tree. When an incoming request to WebLogic's SNMP agent matches the OID in one of the configured proxies, the request then is forwarded to that agent. To use this proxy functionality, you have to create one or more SNMP proxies from the SNMP/Proxies node in the left pane of the Administration Console. Table 22-6 describes the configuration options available for an SNMP proxy.

Table 22-6. Configuration settings for an SNMP proxy

Option	Description
Port	This is the port number of the other SNMP agent to which WebLogic should proxy.
OID Root	This is the absolute OID for the proxy, indicating the root of the part of the OID tree that will be proxied.
Community	This is the community name that has been configured for the agent to which WebLogic is proxying.
Timeout	This is the length of time that WebLogic will wait for a response to requests proxied to the other agent. If no response is sent in this period, an error is sent to the requesting management system.

WebLogic's SNMP agent cannot be configured as a proxy for Microsoft Windows' SNMP agent. Nor can the SNMP agent in Microsoft Windows 2000 be configured as a proxy for WebLogic.

Of course, in order to use the proxy, you must ensure the agent is listening on a port number that is different from the listen port configured for WebLogic's SNMP agent.