Brocade Communications Systems SilkWorm 24000 用户手册

In addition, exchange-based Dynamic
Path Selection (DPS) optimizes fabric-
wide performance and load balancing
by automatically routing data to the
most efficient available path in the 
fabric. DPS augments ISL Trunking to
provide more effective load balancing
in certain configurations, such as routing
data between multiple trunk groups
for higher availability.

To support disaster recovery and busi-
ness continuance operations, the
SilkWorm 24000 with new 4 Gbit/sec
blades enables unprecedented distances
between servers and storage devices.
Support for distances up to 500 kilo-
meters at 1 Gbit/sec and 100 kilome-
ters at 4 Gbit/sec at full bandwidth
facilitates high-performance, long-
distance SAN solutions for data 
replication and business continuance.

The SilkWorm 24000 leverages Fabric
OS, the embedded operating system,
to centralize SAN management for
greater efficiency.This approach enables
heterogeneous device connectivity, auto-
matic data routing, self-healing capabili-
ties, and scalable connectivity options.
To simplify daily SAN management,
organizations can utilize a command line
interface for automated scripting or the
GUI-based  Brocade Web Tools  utility.

Organizations can also use Brocade
Advanced Performance Monitoring to
improve SAN performance tuning,
resource optimization, and administrator
productivity. Moreover, the Brocade
Fabric Access API integrates with 
popular third-party storage management
applications, enabling organizations to
continue using their storage manage-
ment tools of choice.

The SilkWorm 24000 supports the
FICON protocol for IBM zSeries server
environments, enabling organizations
to run both open systems Fibre Channel
and FICON traffic in intermix mode
on a port-by-port basis within a single
director.The Brocade FICON imple-
mentation also supports cascaded
FICON fabrics and both 1 and 2
Gbit/sec FICON speeds, as well as the
CUP in-band management protocol
for use with SA/390, DCM, or RMF
monitoring platforms.

To help protect existing technology
investments, the SilkWorm 24000 pro-
vides backward and forward compati-
bility with SilkWorm entry, midrange,
and director offerings. Organizations
can upgrade existing SilkWorm 12000
directors by replacing the port cards

and control processors, and can intermix
SilkWorm 12000 and SilkWorm 24000
blades in supported configurations.

In addition, the SilkWorm 24000 is
designed to support non-disruptive
addition of 4 Gbit/sec Fibre Channel
blades for performance and distance
benefits. These capabilities help
“future-proof ” the SilkWorm 24000
for years to come. (For specific
SilkWorm 24000 upgrade options,
contact an authorized Brocade Partner
or visit www.brocade.com.)

Brocade and its partners offer complete
SAN solutions to meet a wide range of
technology and business requirements.
These solutions include education and
training, support, service, and profes-
sional services to help optimize SAN
investments. For more information,
contact an authorized Brocade sales
partner or visit  www.brocade.com.

128 ports, universal (E, F, and FL); one domain per 
chassis at up to 128 ports or two domains per chassis
at up to 64 ports each; up to eight 16-port Fibre 
Channel modules; up to 384 ports per 42U rack

Redundant (active/standby) control processor modules

Full fabric architecture 239 switches maximum

Combination of 56 switches, 19 hops; larger fabrics 
certified as required; consult Brocade or OEM SAN 
design documents for configuration details

Any SilkWorm 2000 family switch, SilkWorm 3000 
family switch, SilkWorm 4000 family switch, SilkWorm 
200E, SilkWorm 12000, and SilkWorm 48000

2 Gbit/sec blades: 1.063 Gbit/sec line speed (full 
duplex); 2.125 Gbit/sec line speed (full duplex); 
auto-sensing of 1 and 2 Gbit/sec port speeds; 
optionally programmable to fixed port speed; 
speed-matching between 1 and 2 Gbit/sec ports
4 Gbit/sec blades: 1.063 Gbit/sec line speed (full 
duplex); 2.125 Gbit/sec line speed (full duplex); 
4.25 Gbit/sec line speed (full duplex); auto-sensing 
of 1, 2, and 4 Gbit/sec port speeds; optionally 
programmable to fixed port speed; speed-matching 
between 1, 2, and 4 Gbit/sec ports

2 Gbit/sec blades: Up to four 2.125 Gbit/sec ports 
per ISL trunk; up to 8.5 Gbit/sec per ISL trunk
4 Gbit/sec blades: Up to eight 4.25 Gbit/sec ports 
per ISL trunk; up to 32 Gbit/sec per ISL trunk