Technical data

Conﬁguring SNMP

13.6 Solving SNMP Problems

Additional problems occur if ﬁle protections or installation privileges were

changed on SYS$SYSTEM:TCPIP$HR_MIB.EXE.

13.6.6.1 Solving Timeout Problems with SNMP Subagents

If queries from a client to an OpenVMS SNMP server are consistently timing

out, consider solutions on either the client or server side. For information about

checking the client side, refer to the Compaq TCP/IP Services for OpenVMS

SNMP Programming and Reference guide.

On the server:

• Adjust the default timeout value for master agent/subagent communication

by redeﬁning the system logical TCPIP$ESNMP_DEFAULT_TIMEOUT, as

described in Table 13–5.

• Analyze the performance of slow areas of subagent code to improve the speed

of those areas.

• Split up one subagent into multiple subagents, each handling a subset of the

original OID tree.

• Adjust the timeout for individual subagents using

esnmp_init( )

, as described

in the Compaq TCP/IP Services for OpenVMS SNMP Programming and

Reference guide.

Before making extensive modiﬁcations to either the client or the server, consider

analyzing the network load for congestion problems.

13.6.7 Disabling SNMP OPCOM Messages

To disable OPCOM messages for SNMP, enter the following command sequence:

TCPIP> SET SERVICE SNMP /LOG=NOALL

TCPIP> DISABLE SERVICE SNMP

TCPIP> ENABLE SERVICE SNMP

Be aware that when you disable OPCOM messages, you may be suppressing

information that is useful for solving problems.

Conﬁguring SNMP 13–29