Enterasys Networks CSX7000 Manuel d'utilisateur télécharger pdf (Page 458)

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USER’S GUIDE

458 CyberSWITCH

4. However, if one of the following messages appears, there is an unexpected condition present

within the CyberSWITCH software. Contact Customer Support.

[SNMP] SNMP initialization failure - unable to allocate

necessary memory

[SNMP] SNMP initialization failure - unable to open UDP port

5. Verify that the MIB objects can be retrieved via the SNMP get command. Begin by making sure

that the latest version of the enterprise MIB (the ih_mib.asn file) has been compiled at the

desired SNMP network management station(s). Once the new version of the MIB is compiled,

you can issue the SNMP get command.

6. Verify the CyberSWITCH SNMP Agent is returning the correct values. Compare the values of

the MIB objects retrieved (via the SNMP get command) to the output available via various

system administration console and dynamic management commands. For example, the

isdn

usage

console command displays B-channel information. This information corresponds to the

MIB isdnUsageMonitor group objects, a subset of the ihSystemMonitor group. The

console

command will return output that contains information that corresponds to the MIB

ihStatusReport table. Other console commands that will output information that includes

values that correspond to MIB objects are

udp

stats

ip stats,

and

snmp stats.

7. Does the CyberSWITCH respond to SNMP requests?

a. Enter the command

snmp stats

at the administrative console. If an “SNMP is not

enabled” message appears, you must first enable the SNMP Agent (using CFGEDIT).

b. If the SNMP statistics are displayed, check the value of the “snmpInBadVersions” statistic.

If it is non-zero, the Network Management station is generating request PDUs with an

incompatible SNMP version number. Such requests are discarded by the SNMP agent.

c. Check the value of the “snmpInBadCommunityUses” statistic. If it is non-zero, the

community name specified in the request PDUs does not have the proper access rights to

perform the desired request, and the request is discarded. To correct this problem,

reconfigure the MIB access level for the desired community name to the desired access

level.

d. Check the value of the “snmpInASNParseErrs” statistic. If it is non-zero, the network

management station is generating request PDUs that are not properly encoded in ASN.1

format. Such requests are discarded by the SNMP agent.

8. Does the CyberSWITCH generate SNMP Trap PDUs?

a. Enter the

snmp stats

command at the administrative console. If an “SNMP is not

enabled” message appears, you must first enable the SNMP Agent (using CFGEDIT).

b. If the SNMP statistics are displayed, check the value of the “snmpOutTraps” statistic. If

this counter is zero, the SNMP agent has not generated any Traps. Check your

configuration setup and ensure that at least one SNMP Trap Receiver is configured. If the

value of the “snmpOutTraps” statistic is non-zero, the SNMP agent is generating Trap

PDUs. If a given Network Management Station is not receiving Traps as expected, check

your configuration setup and ensure that the IP address and the Community Name of the

Network Management Station that is not receiving Traps is configured properly.

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Enterasys Networks CSX7000 Manuel d'utilisateur Page 458

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