Maximum number of total domains per backbone fabric
WWNs
Maximum number of local WWNs per backbone fabric
Hop count
Maximum number of hops between switches (including routers) in a Meta SAN
45)
400 MP Router and MP Router Blade hop count
The 400 MP Router and MP Router Blade are counted in the same way as a Fibre Channel switch
when determining the fabric hop count
through an MP Router must adhere to both the B-series 7-hop limit within an edge fabric and the MP
Router 12-hop limit .
400 MP Router and MP Router Blade usage
Use an MP Router Blade:
If you want to add multiple fabrics to a Meta SAN, and one of those fabrics contains a 4/256
SAN Director, DC SAN Backbone Director, or DC04 SAN Director with an available slot for an
MP Router Blade
NOTE:
All devices connected to the SAN Director Fibre Channel ports are part of a backbone fabric.
If you want to share up to 256 local devices in a backbone fabric with multiple edge fabrics
For FCIP, if there are 4/256 SAN Directors, DC SAN Backbone Directors, or DC04 SAN Directors
at both the local site and remote site
Use a 400 MP Router:
If you do not have a 4/256 SAN Director, DC SAN Backbone Director, or DC04 SAN Director,
and do not plan to use one
If you have a 4/256 SAN Director, DC SAN Backbone Director, or DC04 SAN Director, and do
not want to use it as a backbone fabric
For FCIP, if there are no 4/256 SAN Directors, DC SAN Backbone Directors, or DC04 SAN
Directors at the local site or remote site
For use-case configuration examples, see the 400 MP Router and MP Router Blade use-case white
papers at http://h18006.www1.hp.com/storage/sanwhitepapers.html?jumpid=reg_R1002_USEN.
120
B-series switches and fabric rules
Hop count scalability
(Figure 45
on page 126). Devices communicating across fabrics
42
512 (32 edge fabrics)
1,280 (1 edge fabric)
(Figure
12
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