Citrix ByteMobile T1010, Installation, Configuration And Administration

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5-20 T-Series Traffic Director Installation, Configuration and Administration Guide
Chapter 5 Administration
Specifying an SNMP Community
You can create strings called community strings and associate them with the following
SNMP query types on the T1000:
• GET
• GET NEXT
• ALL
• GET BULK
You can associate one or more community strings to each query types. For example, when
you associate two community strings, such as abc and bcd, to the query type GET NEXT,
the SNMP agent on the T1000 appliance considers only those GET NEXT SNMP query
packets that contain abc or bcd as the community string.
If you don't associate any community string to a query type then the SNMP agent responds
to all SNMP queries of that type.
To specify an SNMP community:
At the T1000 command prompt, type the following commands to set the parameters and
verify the configuration:
add snmp community communityName permissions
show snmp community [ communityName ]
For example:
> add snmp community com all
Done
> show snmp community com
Community: com Permissions: ALL
Done
Configuring SNMP Alarms for Rate Limiting
The T1000 uses a license that is rate limited. The maximum throughput (Mbps) and packets
per second (PPS) are determined by limit in the license. You can configure SNMP traps to
send notifications when throughput and PPS approach their limits and when they return to
normal.
Throughput and PPS are monitored every seven seconds. You can configure traps with
high-threshold and normal-threshold values, which are expressed as a percentage of the
licensed limits. The appliance then generates a trap when throughput or PPS exceeds the
high threshold, and a second trap when the monitored parameter falls to the normal
threshold. In addition to sending the traps to the configured destination device, the T1000
logs the events associated with the traps in the
/var/log/ns.log file as EVENT
ALERTSTARTED and EVENT ALERTENDED.
Exceeding the throughput limit can result in packet loss. You can configure SNMP alarms to
report packet loss.