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Nortel Networks 5399 and 8000 Access Switch SNMP MIB Reference
6-2 300861-C Rev. 00
• Why can’t I use an SNMP set to change parameters on the RAC?
You may be prevented from changing parameter values based on the value of
the allow_snmp_sets parameter. If allow_snmp_sets is set to
disabled, you
can use the telnet command to reach the RAC and run the superuser CLI
admin
command to set allow_snmp_sets to yes.
The RAC default value does not allow changes to configuration parameters
through SNMP. The RAC SNMP agent uses SNMP version 1. The only
security check performed by the SNMP agent is to match the community
string in an incoming SNMP packet with the defined community strings for
the RAC. Since the community string in the SNMP packet is transmitted in
the clear (not encrypted), there is a potential security risk in allowing changes
to the configuration through SNMP messages. If you wish to configure the
RAC using SNMP, please be aware of this situation.
If the IP address associated with the community string doesn’t match, you
may not have access to sets. If the community string and IP address match,
check to make sure that access is read/write and not read only.
• Why do I see a “Parameter does not exist” message?
Not all parameters apply to all RAC hardware configurations or all software
releases. Therefore, you may see this message when you use the
show or set
commands.
The community string may be wrong. If set, allow_snmp_sets may be set to
no, or the community may not have write privileges.