HP AP775A Cisco MDS 9000 Family Fabric Manager Configuration Guide - Release 4 - Page 1004

Database Merge Guidelines Chapter 46 Configuring Port Security Send documentation comments to [email protected] Table 46-3 Scenarios for Activation and Auto-learning Configurations in Distributed Mode (continued) Scenario Actions Distribution = OFF A and B exist in the configuration database, activation is not done and devices C,D are logged in. 1. You activate the port configuration database = {A,B} security database and active database = {A,B, C*, D*} enable auto-learning. 2. You disable learning. configuration database = {A,B} active database = {A,B, C, D} 3. You issue a commit. Not applicable 1. The * (asterisk) indicates learned entries. Distribution = ON configuration database = {A,B} active database = {null} pending database = {A,B + activation to be enabled} configuration database = {A,B} active database = {null} pending database = {A,B + activation to be enabled + learning to be disabled} configuration database = {A,B} active database = {A,B} and devices C and D are logged out. This is equal to an activation with auto-learning disabled. pending database = empty Tip In this case, we recommend that you perform a commit at the end of each operation: after you activate port security and after you enable auto learning. Database Merge Guidelines A database merge refers to a union of the configuration database and static (unlearned) entries in the active database. See the CFS Merge Support, page 13-9 for detaileds concepts. When merging the database between two fabrics, follow these guidelines: • Verify that the activation status and the auto-learning status is the same in both fabrics. • Verify that the combined number of configurations for each VSAN in both databases does not exceed 2 K. Caution If you do not follow these two conditions, the merge will fail. The next distribution will forcefully synchronize the databases and the activation states in the fabric. Database Interaction This section includes the following topics: • Database Scenarios, page 46-21 • Port Security Database Copy, page 46-22 • Port Security Database Deletion, page 46-22 46-20 Cisco MDS 9000 Family Fabric Manager Configuration Guide OL-17256-03, Cisco MDS NX-OS Release 4.x