Table 62 Number Of Ports Supported Per Chip Or Per Trunk - HP StoreFabric SN6500B Administrator's Manual

Bandwidth limits
Fabric OS supports up to 32 Gbps of data encryption and 32 Gbps of data compression per
16G-capable FC platform. This limits the number of ports that can have these features enabled at
any one time.
ports for different implementations.
TABLE 62
Port speed
16 Gbps
10 Gbps
8/4/2 Gbps
Auto-negotiate (AN)
16 Gbps
10 Gbps
8/4/2 Gbps
Auto-negotiate (AN)
16 Gbps
10 Gbps
8/4/2 Gbps
Auto-negotiate (AN)
1.
2.
3.
NOTE
Even though this table does not show all the possible combinations of different speeds for the
encryption/compression ports, other combinations are also supported. The number of supported
ports is automatically calculated based on the speeds chosen.
Payload size limits
As the current encryption protocol can support only 560 words (2240 bytes), the payload size of
the frame has to be restricted to 2048 bytes. This is to ensure the frame reception on an
encryption-enabled XISL involving a Base switch works correctly.
Key Entry limitations
The current encryption supports the AES-GCM authenticated encryption block cipher mode. A key,
Initial Vector (IV), segment number and Salt are required to encrypt the data before it is
transmitted, and to decode the data after it is received on the other end of the link.
Fabric OS Administrator's Guide
53-1002745-02
Table 62 shows some examples of how port speed affects the number of supported
Number of ports supported per chip or per trunk
Blades (FC16-32, FC16-48)
Encryption only
4 ports
6 ports
8 ports
4 ports
6510 Fixed-port switches
2 ports
3 ports
4 ports
2 ports
6520 Fixed-port switches
8 ports
12 ports
16 ports
8 ports
For port blades, two ASICs; per ASIC limit = numbers above/two
For Brocade 6510, one ASIC; per ASIC limit = numbers above/one
For Brocade 6520, four edge ASICs; per ASIC limit = numbers above/four
In-flight encryption and compression overview
1
Compression only Encryption and compression
4 ports 4 ports
6 ports 6 ports
8 ports 8 ports
4 ports 4 ports
2
2 ports 2 ports
3 ports 3 ports
4 ports 4 ports
2 ports 2 ports
3
8 ports 8 ports
12 ports 12 ports
16 ports 16 ports
8 ports 8 ports
14
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