Checkin g CRLs

A CA maintains a CRL that contains a list of certificates that have been revoked before their expiration date.
Expired client certificates are not accepted for any user-centric network service. Certificates may be revoked because
certificate key has been compromised ort heuser specified in the certificate is no longerauthorized to use the key.
Whena client certificate i s beingauthenticated for a user-centric network service, the controllerchecks with the
appropriate CA to make sure that the certificate has not been revoked.
NOTE:The controllerdoes not support download of CR Ls.
Configuring SNMP
Dell controllerssupport versions 1, 2c, and 3 of Simple Network Management Protocol (SNMP) for reporting
purposeso nly.In o therw ords,SNMP cannot be used for setting values in a Dell system in the current ArubaOS
version.
NOTE:Dell -specific management information bases (MIBs)describe the objects that can be managed using SNMP. See the
Dell
PowerConnect W-Series ArubaOS MIB Reference Guide fori nformation aboutthe Dell MIBs and SNMP traps.

SNMP Pa rameters for the C ontroller

You can configurethe following SNMP parameters for the controller.
Field Description
HostName Hostname of the controller.
SystemContact Nameof the person who acts as the System Contact or administrator for thecontroll er.
SystemLocation Stringto describe the location of the controller.
ReadC ommunity Strings Community stringsused to authenticate requests for SNMP versions beforeversion 3.
NOTE:Thi s is needed only if using SNMP v2c and i s not needed if using version 3.
Enable Trap Generation Enablesgeneration of SNMP traps to configured SNMP trap receivers. Refer to the list
oftraps in the “SNMP traps” section below for a list of traps thatare generated by the
controller.
Traprecei vers Host information about a trap receiver. This host needs tobe runni ng a traprecei verto
receiveand i nterpretthe traps sent by the Dell controller. Configure the following for
eachhost/trap receiver:
lIPaddress
lSNMP version: can be 1, 2c, or 3.
lType:Trap or Inform (SNMPv2c or SNMPv3 only)
lEngine ID:(SNMP v3onl y)
lSecuritystring
lUDPport on which the trap receiver is listening for traps. The default is the UDP
portnumber 162.This is optional, and w ill use the default port number if not
modified by theuser.

Table25 6:

SNMP Parametersfor the Controller
DellPowerConnect W- Series ArubaOS 6.2 | UserGuide ManagementAccess |639