Data Column

Description

 

For deployments with both master and local Dell controllers:

 

• The sequence number on a master controller should be the same as the remote

 

sequence number on the local controller.

 

• The sequence number on a local controller should be the same as the remote

 

sequence number on the master controller.

 

 

Remote Sequence Number

The number of times that the controller whose WebUI you are currently viewing has

 

received and acknowledged a campus AP whitelist change from the controller in the

 

whitelist.

 

For deployments with both master and local Dell controllers:

 

• The remote sequence number on a master controller should be the same as the

 

sequence number on the local controller.

 

• The remote sequence number on a local controller should be the same as the

 

sequence number on the master controller.

 

 

Null Update Count

The number of times the controller checked its campus AP whitelist and found nothing to

 

synchronize with the other controller. By default, the controller compares its control

 

plane security whitelist against whitelists on other Dell controllers two minutes. If the

 

null update count reaches 5, the controller sends an “empty sync” heartbeat to the

 

remote controller to ensure the sequence numbers on both Dell controllers are the

 

same, then reset the null update count to zero.

 

 

To view the master or local switch whitelists via the command-line interface, issue the following commands:

show whitelist-db cpsec-master-switch-list [mac-address <mac-address>] show whitelist-db cpsec-local-switch-list [mac-address <mac-address>]

Deleting an Entry from the Master or Local Switch Whitelist

There is no need to delete a master controller from the master switch whitelist during the course of normal operation. However, if you remove a local controller from the network, you should also remove the local controller from the local switch whitelist on the master controller. If the local switch whitelist contains entries for Dell controllers no longer on the network, then a campus AP whitelist entry can be marked for deletion but is not physically deleted, as the controlleris waiting for an acknowledgement from another controller no longer on the network. This can increase network traffic and reduce memory resources on the controller.

To delete an entry from the master or local switch whitelist via the WebUI:

1.Access the controller’s WebUI, and navigate to Configuration>Controller.

2.Select the Control Plane Security tab.

3.To delete an entry from the Local Switch Whitelist: In the Local Switch List For AP Whitelist Sync section, click the Delete button by each controller entry you want to remove.

Or,

To delete an entry from the Master Controller Whitelist: In the Master Switch List For AP Whitelist Sync section, click the Delete button by each controller entry you want to remove.

4.Click Apply to save you settings.

To delete an entry from the master or local switch whitelist via the command-line interface, issue either of the following commands:

whitelist-db cpsec-master-switch-list del mac-address <mac-address> whitelist-db cpsec-local-switch-list del mac-address <mac-address>

Dell PowerConnect W-Series ArubaOS 6.2 User Guide

Control Plane Security 89

Page 88 Page 90
Page 89
Image 89
Dell 6.2 manual Deleting an Entry from the Master or Local Switch Whitelist
Page 88 Page 90

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