User`s guide
Chapter 3. Implementing the INRANGE FC/9000 Fibre Channel Director 265
– Each director or switch in a fabric must have a unique switch id.
– When having no zoning implemented at all then all nodes have access to
any other node fabric-wide.
When actually using Inter Switch Links for I/O, there will be a delay called
latency. The actual usage of a ISL is commonly called a hop. Typically up to
three hops are supported for a particular I/O.
T_Ports cannot be part of name server zones.
When having hard zones installed that cross chassis boundaries, then both
parts of the hard zone must be directly connected by at least one ISL. You
must have dedicated ISLs for each hard zone spanning multiple chassis.
Up to eight FC/9000 directors can be cascaded to create one fabric.
All directors and switches being part of one fabric will be displayed with their ISLs
when having the IN-VSN fabric view selected, as illustrated in Figure 3-78.
Figure 3-78 IN-VSN: Fabric view with two cascaded directors