Extreme Networks EPICenter Guide Manual page 170

Troubleshooting
SmartTraps are sent, and the data is not refreshed. If you need to remove a trap receiver from a device
running SNMPv1, use the command:
config snmp delete trapreceiver <ipaddress>
For devices running SNMPv3, use the commands:
config snmpv3 delete target-addr <ipaddress>
config snmpv3 delete target-params [ <param> | all ]
config snmpv3 delete notify [ <notify-name> | all-non-defaults ]
See the ExtremeWare Software User Guide for information on using these commands. These commands will
also delete SNMPv1 trap receivers.
For convenience you may want to create a Telnet macro containing these commands. You can use a
user-defined variable to input the target IP address.
Problem: Need to change SNMP polling interval, SNMP request time-out, or number of SNMP
request retries.
You can change the default values for the SNMP polling interval, the SNMP request time-out, or the
number of SNMP request retries, through the Administration applet, Server Properties page.
See Chapter 15 in the EPICenter Reference Guide for information on the EPICenter Administration applet.
Problem: Need to change the Telnet or HTTP port numbers used to communicate with managed
devices.
You can change the port numbers for all managed switches through the Administration applet, Server
Properties page.
See Chapter 15 in the EPICenter Reference Guide for information on the EPICenter Administration applet.
Problem: Telnet polling messages can fill up a device's syslog file.
For switches running older versions of ExtremeWare (prior to 6.0), the EPICenter server uses Telnet
polling to get EDP topology and ESRP information. EPICenter also uses telnet polling to get Netlogin
information, Alpine power supply IDs, and for doing MAC Address polling. However, each Telnet login
and logout message is logged to the switch's log file, and will eventually fill up the log.
You can disable Telnet polling through the EPICenter Administration applet to avoid the messages to the
switch log file. However, this disable all Telnet polling, including the MAC Address Poller used for edge
port polling. If Telnet polling is enabled, you can then enable and disable MAC Address polling separately
through the MAC Polling Server Properties in the Administration applet. You can also enable and disable
MAC Address polling for individual switches through the Inventory Manager.
See Chapter 15 in the EPICenter Reference Guide for information on the EPICenter Administration applet.
Problem: Traps may be dropped during a trap "storm."
The EPICenter server limits its processing of traps in order to be able to reliably handle trap storms from
a single or multiple devices. EPICenter limits its trap processing to 20 traps every 28 seconds from an
individual device, and a total of 275 traps every 55 seconds system-wide. Any traps that occur beyond
these limits will be discarded, but will be noted in the file.
log.txt
170 EPICenter Concepts and Solutions Guide