HP A7533A HP StorageWorks Fabric OS 6.1.1 administrator guide (5697-0235, Dece - Page 214

Symmetrical segmentation occurs when both ends of an ISL are shut down. Subsequently, no frames are exchanged between those two switches. Asymmetrical segmentation not only prevents frames from being exchanged between switches, but also causes routing inconsistencies. The best way to avoid either type of segmentation is to know the zone database size limit of adjacent switches. The following tables provide the expected behavior based on different database sizes after a zone merge is specified. Table 58 Resulting database size: 0 to 96K Receiver Initiator Fabric OS 3.1 Fabric OS 3.2 Fabric OS 4.0/ 4.1/ 4.2 Fabric Fabric OS OS 4.4.0 5.0.0/ 5.0.1/ 5.1.0 Fabric OS 5.2.0 or later Fibre Channel Router XPath 7.3 Fabric OS 3.1 Join Join Join Join Join Join Join Join Fabric OS 3.2 Join Join Join Join Join Join Join Join Fabric OS 4.0/ Join Join Join Join Join Join Join Join 4.1/4.2 Fabric OS 4.4.0 Join Join Join Join Join Join Join Join Fabric OS 5.0.0/ Join Join Join Join Join Join Join Join 5.0.1/5.1.0 Fabric OS 5.2.0 or later Join Join Join Join Join Join Join Join FC router Join Join Join Join Join Join Join Join XPath 7.3 Join Join Join Join Join Join Join Join Table 59 Resulting database size: 96K to 128K Receiver Initiator Fabric OS 3.1 Fabric OS 3.2 Fabric OS 4.0/ 4.1/4.2 Fabric OS 4.4.0 Fabric OS 5.0.0/ 5.0.1/ 5.1.0 Fabric Fibre OS 5.2.0 Channel or later Router Fabric OS 3.1 Segment Segment Segment Segment Segment Join Join Fabric OS 3.2 Segment Join Join Join Join Join Join Fabric OS 4.0/ Segment Segment Join Join Join 4.1/4.2 Fabric OS 4.4.0 Segment Join Join Join Join Fabric OS 5.0.0/ Segment Join 5.0.1 Join Join Join Join Join Join Join Join Join Fabric OS 5.2.0 or Segment Join later Join Join Join FC router Segment Join Join Join Join XPath 7.3 Segment Segment Join Join Join Join Join Join Join Join Join XPath 7.3 Segment Join Join Join Join Join Join Join 214 Administering Advanced Zoning