10/100/1000 BASE-T ports
All devices provide 24 or 48 RJ-45 ports that operate at 10 Mbps or 100 Mbps half or full duplex, or at
1000 Mbps full duplex. Because all ports support automatic MDI or MDI-X operation, you can use
straight-through cables for all network connections to PCs, servers, or other devices or hubs. In
addition, it is ideal (and preferred) to use straight-through cables for switch-to-switch connections.
Each port supports auto-negotiation, so the optimum transmission mode (half or full duplex), and the
data rate (10, 100, or 1000 Mbps) can be selected automatically. If a device connected to one of these
ports does not support auto-negotiation, the communication mode of the port can be configured
manually.
SFP or SFP+ fiber ports
The ICX 7250-24G contains four small form factor pluggable (SFP) ports (ports 1 through 4). The top
row consists of ports 1 and 3, and the bottom row consists of ports 2 and 4. These ports reside on slot
2 of the switch and can be used as uplink (data) ports. These ports support 1 Gbps but not 10 Gbps
port speeds.
All other ICX 7250 devices contain eight SFP+ ports that support 1 Gbps or 10 Gbps port speeds. The
top row ports are odd numbered (ports 1, 3, 5 and 7) and the bottom row ports are even numbered
(ports 2, 4, 6 and 8). All ports can be used for stacking or up-linking.
NOTE
You may need software licenses to enable some SFP+ ports at the full 10 Gbps. Check the
FastIron
Ethernet Switch Software Licensing Guide
for more information.
For information about supported SFP and SFP+ transceivers, refer to the Brocade Optics Family
datasheet.
Specifying a port address
You can specify a port address for an uplink (data) port, a stacking port, or a management port.
Specifying a data port
The port address format is
stack_unit/slot/port
, where:
•
stack_unit
--Specifies the stack unit ID. The range is from 1 through the maximum number of
devices supported in a stack. Refer to the technical specifications for your device for the actual
value. If the device is not part of a stack, the stack unit ID is 1.
•
slot
--Specifies the slot number; either 1 or 2.
•
port
--Specifies the port number in the slot. The range is from 1 through 24 (24-port models) or 1
through 48 (48-port models) for the RJ-45 ports. For the SFP ports, the range is from 1 through 4,
and for the SFP+ ports, the range is from 1 through 8.
This example shows how to specify port 2 in slot 1 of a device that is not part of a stack:
Brocade (config) # interface ethernet 1/1/2
Specifying a stacking port
The port address format is
stack_unit/slot/port
where:
10/100/1000 BASE-T ports
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Brocade ICX 7250 Switch Hardware Installation Guide
53-1003622-02