Brocade 5450 Hardware Reference Manual 7
53-1001266-02
Hardware Description
1
The ASIC features are summarized in Table 2.
Ports
The Embedded Switch Module supports the following port types:
• Eight external optical ports
• Eighteen internal copper ports
Optical ports
For optical ports, SFP fiber optic transceivers that convert electrical signals to optical signals, and
optical signals to electrical signals, are used. Each SFP transceiver is capable of transmitting at
1.0625, 2.125, 4.25, or 8.5 Gbps speeds.
Copper ports
For internal copper ports, connection occurs by way of SerDes 4-wire signaling through the
backplane to the server bays. The internal ports are capable of transmitting at 1.0625, 2.125,
4.25, or 8.5 Gbps speeds. The internal port speed is auto-generated to the highest speed
supported by the chassis. There is one server per switch port that interfaces to the blade server
chassis switch.
TABLE 2 ASIC features
Feature Value
Number of ports 26
Port speed 1, 2, 4, or 8 Gbps
Hardware trunk width 8 ports trunking
Virtual channels 17 per port with credit sharing across virtual
channels
Buffer-to-buffer credits 700
Maximum buffer-to-buffer credits per port 700
Maximum long distance support At 1 Gbps: 900 km (559.2 miles)
At 2 Gbps: 450 km (279.6 miles)
At 4 Gbps: 225 km (139.8 miles)
At 8 Gbps: 110 km (68.35 miles)
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