Brocade Communications Systems 53-1001763-02, Руководство администратора

Страница: 471 / 586

Fabric OS Administrator’s Guide 431
53-1001763-02
F_Port trunking
19
NOTE
The L0 mode supports up to 5 km at 2 Gbps, up to 2 km at 4 Gbps, and up to 1 km at 8 Gbps.
The distance for the LS mode is static. You can specify any distance greater than 10 km.
The distance supported on the DCX-4S depends on the available buffers, number of back-end
ports, and the number of ports that are offline. For more information on setting port speeds, refer
to
“Performing Advanced Configuration Tasks” on page 35.
F_Port trunking
F_Port trunking is enabled between two separate Fabric OS switches that support trunking and
where all the ports on each switch reside in the same quad and are running the same speed. Trunk
groups form when you connect two or more cables on one Fabric OS switch to another Fabric OS
switch with ports in the same port group or quad. A port group or a quad is a set of sequential
ports, for example ports 0-3 in the figure shown below. The Brocade 300, 5100, 5300, 5410,
5424, 5450, 5480, 8000, and VA-40FC platforms support a trunk group with up to eight ports. The
trunking groups are based on the user port number, with contiguous eight ports as one group, such
as 0-7, 8-15, 16-23 and up to the number of ports on the switch.
FIGURE 65 Trunk group configuration for the Brocade 5100
Prerequisites for F_Port trunking
Make sure that the following conditions exist before attempting F_Port trunking:
•
Both modules (edge switch and the switch running in AG mode) have the Trunking licenses
enabled.
•
The ports have Trunking enabled by displaying the port configuration using the portCfgShow
command.
•
The ports are set to the same speed within the trunk.
TABLE 87 Trunking over distance for the Brocade 48000, DCX Backbone, and the DCX-4S
Long distance mode Distance Number of 2 Gbps ports Number of 4 Gbps ports
LE 10 km 48 (six 8-port trunks) 48 (six 8-port trunks)
L0 Normal See note below 48 (six 8-port trunks)
LD 200 km 4 (one 2-port trunk per switch) 0
LD 250 km 4 (one 2-port trunk per switch) 0
LD 500 km 0 0
LS Static See note below