Allied Telesis SwitchBlade x3100 Series - Snmp Counters

Introduction SNMP Community
Software Reference for SwitchBlade x3100 Series Switches (Network Management)
7-50
• Polling - The normal exchange of information between the SNMP agent on the SBx3112 and the SNMP
browser on an external device is as follows:
• The SNMP browser sends a get (or get-next) request to the managed device.
• The device responds with a get-response message.
• Traps - The device sends unsolicited messages called traps for alarm messages.
• SNMP communities - A community includes a name and the IP addresses for trap hosts (that receive all
traps or a subset of traps) and management stations.
• SNMP authentication - SNMP messages from an SNMP application are authenticated by the community
name associated with the message. The generation of authentication failure traps is through the parameter
AUTHENTICATE_TRAP. When enabled, the following conditions cause authentication failure traps:
• Invalid community used to access the SBx3112.
• Invalid use of the community, such as attempting a set with a read-only community.
• Attempted access from a MANAGER which is not a trusted host or is not associated with the commu-
nity associated with the SNMP operation.
7.3.2.1 SNMP Counters
SNMP counters are displayed using the SHOW SNMP command. Refer to Ta b le 7 - 5 for a description of these
counter fields.
TABLE 7-5 SNMP Counters (Displayed Using SHOW SNMP)
Parameter Description
inPkts The total number of SNMP packets received by the SBx3112.
inBadVersions The number of SNMP packets with a bad version field received by the SBx3112.
inBadCommunityNames The total number of SNMP protocol data units (PDUs) delivered to the SNMP agent
that used an unknown SNMP community name.
inBadCommunityUses The total number of SNMP PDUs delivered to the SNMP agent that represented an
SNMP operation not allowed by the SNMP community name in the PDU.
inASNParseErrs The total number of ASN.1 parsing errors, either in encoding or syntax, encountered
by the SNMP agent when decoding received SNMP PDUs.
inTooBigs The total number of valid SNMP PDUs delivered to the SNMP agent where the value
of the errorStatus component was tooBig.
inNoSuchNames The number of SNMP packets received with an error status of nosuchname.
inBadValues The number of SNMP packets received with an error status of badvalue.
inReadOnlys The number of SNMP packets received with an error status of readonly.