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Checking 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A CA maintains a CRL that contains a list of certificates that have been revoked before their expiration date.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 or the user specified in the certificate is no longer authorized to use the key.
When a client certificate is being authenticated for a user-centric network service, the controller checks with the
appropriate CA to make sure that the certificate has not been revoked.
NOTE: The controller does not support download of CRLs.
Configuring SNMP
Dell controllers support versions 1, 2c, and 3 of Simple Network Management Protocol (SNMP) for reporting
purposes only. In other words, 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 for information about the Dell MIBs and SNMP traps.
SNMP Parameters for the Controller
You can configure the following SNMP parameters for the controller.
Field Description
Host Name Host name of the controller.
System Contact Name of the person who acts as the System Contact or administrator for the controller.
System Location String to describe the location of the controller.
Read Community Strings Community strings used to authenticate requests for SNMP versions before version 3.
NOTE: This is needed only if using SNMP v2c and is not needed if using version 3.
Enable Trap Generation Enables generation of SNMP traps to configured SNMP trap receivers. Refer to the list
of traps in the “SNMP traps” section below for a list of traps that are generated by the
controller.
Trap receivers Host information about a trap receiver. This host needs to be running a trap receiver to
receive and interpret the traps sent by the Dell controller. Configure the following for
each host/trap receiver:
l IP address
l SNMP version: can be 1, 2c, or 3.
l Type: Trap or Inform (SNMPv2c or SNMPv3 only)
l Engine ID: (SNMPv3 only)
l Security string
l UDP port on which the trap receiver is listening for traps. The default is the UDP
port number 162. This is optional, and will use the default port number if not
modified by the user.
Table 256:
SNMP Parameters for the Controller
DellPowerConnectW-SeriesArubaOS6.2 | User Guide Management Access | 639