Buffer Credits For Each Switch Model; Table 92 Buffer Credits - Brocade Communications Systems 53-1001763-02 Administrator's Manual

Buffer credits for each switch model

Table 92
unreserved buffer credits available per port group.
TABLE 92
SPIK
Switch/blade model
300
4100/5000
4900
5100
5300
5410
5424
5450
5480
7500
7600
7800
VA-40FC
Brocade Encryption Switch 32
FA4-18
FC4-16
FC4-16IP
FC4-32
FC4-48
FC8-16
FC8-32
FC8-48
FR4-18i
FS8-18
FX8-24
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.
Fabric OS Administrator's Guide
53-1001763-02
shows the total ports in a switch or blade, number of user ports in a port group, and the
Buffer credits
Total FC ports (per switch/blade) User port group size Unreserved buffers (per port group)
24
32
64
40
80
12
24
26
24
16
16
16
40
16
16
8
32
48
16
32
48
16
16
12
Buffer credit management
24 484
32 744
16 584
40 1692
16 292
12 580
24 484
26 468
24 484
8 377
8 404
16 408
40 1692
16 1392
8 404
16 584
8 616
16 624
24 560
16 1292 / 1388
16 1292 / 1636
24 1228 / 1572
8 377
8 1604
12 1060
20
451