Dell POWEREDGE M1000E - Manual (Page 205)

Fabric OS Administrator’s Guide 205
53-1002745-02
Device Connection Control policies
7
Deleting a DCC policy
1. Connect to the switch and log in using an account with admin permissions, or an account with
OM permissions for the Security RBAC class of commands.
2. Enter the secPolicyDelete command.
Example of deleting stale DCC policies
switch:admin> secpolicydelete ALL_STALE_DCC_POLICY
About to clear all STALE DCC policies
ARE YOU SURE (yes, y, no, n): [no] y
DCC policy behavior with Fabric-Assigned PWWNs
A DCC policy check is always performed for the physical port WWN of a device when the HBA has
established that the device is attempting a normal FLOGI and has both a fabric-assigned port WWN
(FA-PWWN) and a physical port WWN.
DCC policies created with FA-PWWNs will result in the disabling of FA-PWWN assigned ports on
subsequent FLOGI. It is therefore recommended to create policies with the physical PWWN
DCC policies created with the lock down feature result in DCC policies with FA-PWWNs. It is
therefore recommended to avoid using the lock down feature in fabrics that are using FA-PWWNs.
A DCC policy created with a device WWN for a specific port allows the device to log in only on the
same port. The same device will not be allowed to log in on a different port. For devices that log in
across an AG, the policy should be created with all the NPIV ports, so even if failover occurs the
device will be allowed to log in on a different NPIV port.
Table 33 lists the behavior of the DCC policy with FA-PWWNs in the fabric when the DCC policy is
created using lockdown support.
TABLE 33 DCC policy behavior with FA-PWWN when created using lockdown support
Configuration WWN seen on
DCC policy list Behavior when DCC policy
activates Behavior on portDisable
and portEnable
•
FA-PWWN has logged into the switch
•
DCC policy creation with lock down
(uses FA-PWWN).
•
DCC policy activation.
FA-PWWN Traffic will not be
disrupted.
1
1. Indicates a security concern, because devices that are logged in with FA-PWWNs will not be disabled after
activation of DCC policies that are created with FA-PWWNs. This is done to avoid disturbing any existing
management.
Ports will be disabled
for security violation.
2
2. Any disruption in the port will disable the port for a security violation. As the traffic is already disrupted for this
port, you must enforce the DCC policy for a physical device WWN; otherwise, the device will not be allowed to login
again.
•
DCC policy creation with lockdown
(uses physical PWWN).
•
FA-PWWN has logged into the switch
•
DCC policy activation.
Physical
PWWN Traffic will not be
disrupted. Ports will come up
without security
issues.
•
DCC policy creation with lockdown
(uses physical PWWN)
•
DCC policy activation
•
FA-PWWN has logged into the switch
Physical
PWWN Traffic will not be
disrupted. Ports will come up
without any security
issues.