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Systems Architecture
Fibre Channel ports 32 universal ports (E, F, and FL)
Interoperability SilkWorm 2000, 3000, and 12000 switches
Performance Auto-sensing of 1 Gbit/sec and 2 Gbit/sec
port speeds
ISL Trunking Up to four 2.125 Gbit/sec ports per trunk; up to
8.5 Gbit/sec per ISL trunk
Aggregate bandwidth 128 Gbit/sec end-to-end
Switch core Non-blocking
Fabric latency <2.1 µsec. with no contention, cut-through routing
Maximum frame size 2112-byte payload
Classes of service Class 2, Class 3, Class F (inter-switch frames)
Port types FL_Port, F_Port, and E_Port; self-discovery based on
switch type (U_Port); optional port type control
Data traffic types Fabric switches support unicast, multicast
(256 groups), and broadcast
Media types Hot-pluggable, industry-standard Small Form-Factor
Pluggable (SFP), LC connector; Short-Wavelength
Laser (SWL); Long-Wavelength Laser (LWL);
Extended Long-Wavelength Laser (ELWL); distance
depends on fiber optic cable and port speed
Laser Short-wave, long-wave, and extended long-wave
Fabric services Simple Name Server, Registered State Change
Notification (RSCN), Alias Server (multicast),
and Brocade Zoning, Advanced Zoning,
Extended Fabrics, Fabric Watch, ISL Trunking,
and Remote Switch (some services are optional)
Options Redundant power supply, and rack-mount kit
Management
Supported software Telnet, SNMP, WEB TOOLS, and
Fabric Manager (optional)
Management access 10/100 Ethernet (RJ-45), serial port
Diagnostics POST and embedded online/offline diagnostics
Mechanical Specifications
Enclosure Back-to-front airflow, power from rear
1.5U, 19-in.–EIA compliant
Size Depth: 58.56 cm (23.06 in)
Height: 6.55 cm (2.58 in.)
Width: 42.86 cm (16.87 in.)
Weight Single power supply weight: 14.33 kg (31.60 lbs)
Double power supply weight: 16.24 kg (35.80 lbs)
Mounting option Rack-mountable in standard rack; Telco-style
mid-mounting
Environment
Temperature Operating: 10° C to 40° C (50° F to 104° F)
Nonoperating: -25° C to 70° C (-13° F to 158° F)
Humidity Operating: 20% to 85% non-condensing at 40° C
(104° F)
Nonoperating: 10% to 85% non-condensing,
at 70° C (158° F)
Altitude Operating: up to 3,000 m (9,800 ft)
Nonoperating: up to 12 km (40,000 ft)
Shock Operating: 80 G, 2.4ms, half-sine
Nonoperating: 20 G, 11 milliseconds, half-sine wave
Vibration Operating: 0.5 G, 5-500 Hz
Non-operating: 2.0 G, 5-500 Hz
Power
AC Input Nominal: 100 to 240 VAC auto-ranging; 5.0 A
Frequency 47 to 63 Hz
SILKWORM 3900
© 2004 Brocade Communications Systems,Inc.All Rights Reserved.10/04 GA-DS-454-03
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Notice:This document is for informational purposes only and does not set forth any warranty,expressed or implied,concerning any equipment,equipment feature,or
service offered or to be offered by Brocade.Brocade reserves the right to make changes to this document at any time,without notice,and assumes no responsibility for its
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