Brocade Communications Systems 53-1001763-02 사용자 설명서

Buffer credit management

20

Buffer credits for each switch model

 shows the total ports in a switch or blade, number of user ports in a port group, and the 

unreserved buffer credits available per port group. 

SPIK

For the FC8-x blades, the first number in the Unreserved buffers column designates the number of 
unreserved buffers per port group in Brocade DCX and DCX-4S platforms; the second number 
designates the unreserved buffers in a Brocade 48000 director. For example, for the FC8-48, 1228 
designates the number of unreserved buffers per port group and 1324 number designates the 
number in a Brocade 48000 director. Additional buffers are available with the Brocade 48000 
director because of fewer buffers allocated for back-end port connections. Implementing extended 
fabrics between Brocade 2xxx switches and switches running any Fabric OS v6.x is not supported.

TABLE 92

Buffer credits

Switch/blade model

Total FC ports (per switch/blade) User port group size Unreserved buffers (per port group)

300

24

24

484

4100/5000

32

32

744

4900

64

16

584

5100

40

40

1692

5300

80

16

292

5410

12

12

580

5424

24

24

484

5450

26

26

468

5480

24

24

484

7500

16

8

377

7600

16

8

404

7800

16

16

408

VA-40FC

40

40

1692

Brocade Encryption Switch 32

16

1392

FA4-18

16

8

404

FC4-16

16

16

584

FC4-16IP

8

8

616

FC4-32

32

16

624

FC4-48

48

24

560

FC8-16

16

16

1292 / 1388

FC8-32

32

16

1292 / 1636

FC8-48

48

24

1228 / 1572

FR4-18i

16

8

377

FS8-18

16

8

1604

FX8-24

12

12

1060