Displaying address conflict information
The messages which are output on the console in the event of address conflicts must be answered. You can have them displayed using the SHOW-PENDING-MESSAGES command.
For (VLAN) lines, the Address Conflict Detection (IPv4) and the Duplicate Address Detection (IPv6) are set by default.
You can check the current settings for IPv4 and IPv6 using the following commands:
SHOW-LINE-ATTRIBUTES INFORMATION=*OPTION
SHOW-VLAN-LINE-ATTRIBUTES INFORMATION=*OPTION (VLAN)
If the settings for the (VLAN) lines are set to *OFF, address conflicts for the relevant address type are not recognized. The repercussions of address conflicts cannot then be foreseen.
The setting for (VLAN) lines can be modified using the following commands:
MODIFY-(VLAN)-LINE ADDR-CONFLICT-DETECT= ... (IPv4)
MODIFY-(VLAN)-LINE DUP-ADDRESS-DETECTION=... (IPv6)
You can use the SHOW-OWN-ADDRESS ADDRESS-STATE=*INVALID command to display addresses for which an address conflict has been recognized or which have already been deactivated by means of a command. Alternatively, the information can be output in dialog mode using the SHOW-BCAM-ADDRESS command.
Handling address conflicts on a targeted basis
The BCAM commands DEACTIVATE-OWN-ADDRESS and ACTIVATE-OWN-ADDRESS enable you to handle address conflicts in IPv4 or IPv6 on a targeted basis. These commands are used to address own addresses directly which have caused a detected address conflict.
You use the DEACTIVATE-OWN-ADDRESS command to deactivate own addresses, which are then completely withdrawn from being accessed by other BCAM commands until further notice and no longer have an effect on the network. The ACTIVATE(-VLAN)-LINE and DEACTIVATE(-VLAN)-LINE commands take into account such deactivated own addresses and perform no implicit actions with these own addresses.
If an own address is to be used again, you must first reactivate it explicitly with the ACTIVATE-OWN-ADDRESS command.