H3C Technologies H3C S10500 Series Switches - Manual (Page 91)

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3. After the merge process initiated by Switch A is complete, Switch B initiates a merge process to all
its neighbors. This synchronizes Switch B's local database changes resulting from the merge to the
entire fabric.
4. Two 1-way merge processes can ensure data consistency between Switch A and Switch B.
NOTE:
Consistent active zone sets among switches can be achieved by a merge. Consistent zone databases
achieved after a merge, however, require all participating switches to be configured with complete merge.
Zone merge rules
Table 5 Zone merge rules
Local database Neighbor database Merge status Merge result
The zone databases contain zone sets with the same
name, but zones in these zone sets have different
names.
Successful
The union of the local database
and neighbor database. Zone sets
with the same name are merged.
The zone databases contain zone sets with different
names.
Successful
The union of the local database
and neighbor database. All zone
sets with different names are
retained.
The zone databases contain zones or zone aliases
with different names.
Successful
The union of the local database
and neighbor database. All zone
sets or zone aliases with different
names are retained.
The Pairwise feature status is different for one or more
of the zones with the same name in the active zone
sets or zone databases.
Failed
Both databases remain
unchanged.
The databases contain zones or zone aliases with the
same name but with one or more different zone
members.
Failed
Both databases remain
unchanged.
Zones with the same name in the active zone set
contain the same zone members, but one or more of
these members have different roles.
Or
Zones or zone aliases with the same name in the zone
databases contain the same zone members, but one
or more of these members have different roles.
Failed
Both databases remain
unchanged.
Empty Contain data Successful
The neighbor database overwrites
the local database.
Contain data Empty Successful
The local database overwrites the
neighbor database.
NOTE:
•
If two active zone sets have different names, the larger name obtained by string comparison acts as the
name of the active zone set after merging.
• If the active zone sets on two switches fail to merge, the two switches isolate their connecting link by
bringing down the relevant ports in the VSAN, in addition to keeping their zone databases unchanged.