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Technical Information

DATA SHEET

Catalyst 4840G Server Load-Balancing Switch Wire-Speed Firewall and Server

Load-Balancing, Layer-3 Switching

THE CATALYST

4840G SWITCH IS A COMPACT, HIGH-PERFORMANCE, SERVER LOAD-BALANCING (SLB)

SWITCH FEATURING WIRE-SPEED LOAD-BALANCING BETWEEN FIREWALL OR WEB SERVERS.PACKING AN

INCREDIBLE

9 MILLION PACKETS PER SECOND OF SYSTEM THROUGHPUT IN A COMPACT TWO RACK UNITS (RU),

THIS NEW CATALYST SWITCH PROVIDES THE HIGH PERFORMANCE THAT IS REQUIRED FOR ENTERPRISE OR

INTERNET SERVICE PROVIDER (ISP) SOLUTIONS SUCH AS SECURITY OR WEB HOSTING.AS INTERNET AND

DATA

-CENTER TRAFFIC DOUBLES EVERY THREE-TO-FOUR MONTHS, THE CATALYST 4840G HANDLES THE

HEAVIEST TRAFFIC LOADS AND ENABLES

FIREWALL FARMS AND WEB SITE SERVER FARMS TO SCALE TO THEIR

FULL POTENTIAL

.WITH THE CATALYST 4840G, THE NETWORK IS NEVER THE PERFORMANCE BOTTLENECK.

As an integral part of the Cisco ContentFlow architecture, the

Catalyst 4840G is optimized for ﬁrewall and server farm

deployments. Catalyst 4840G features include:

• Best-in-class port density in a tight package—Dedicated 40 ports

of 10/100-Mbps Ethernet and two ports of 1000BaseX Gigabit

Ethernet with gigabit interface converter (GBIC) support for

interface ﬂexibility. All ports provide server load balancing and

IP Layer 3 switching capability

• Best-in-class performance—Firewall and server load balancing

and L-3 switching at more than 9 Mpps

• High system capacity—22-Gbps non-blocking switch fabric

• Multi-processor architecture— Cisco IOS

software provides

rich SLB algorithms and services as well as L-3 switching

support, hardware application-speciﬁc integrated circuits

(ASICs) for switching

• Flexible network topology options—Dispatch and directed

modes allow servers to be either L-2 directly connected or

located behind additional L-3 hops

• Unmatched resiliency features deliver a non-stop network

infrastructure—Support for switch generated Firewall health

checks, Hypertext Transfer Protocol (HTTP) health checks,

Dynamic Feedback Protocol (DFP), and stateful redundancy

between Catalyst 4840Gs. Also supports Hot Standby Router

Protocol (HSRP) for SLB and L-3 redundancy. Optional

redundant external power supply.

• Quality of service (QoS)—Multiple queues with Weighted

Round Robin (WRR) scheduling

• Comprehensive management tools based on CiscoWorks2000

Content Flow Monitor application

• Proven load-balancing algorithms—Several years ago, Cisco

invented and pioneered this technology with Cisco IOS and the

Local Director appliances. This experience and continuous

innovation ensures that Cisco delivers the “latest and greatest”

in load-balancing technology.

• Unmatched scalability—Provides non-blocking, server

load-balancing for 1024 real servers and unlimited

virtual servers; up to 40 ﬁrewalls.

Figure 1 Catalyst 4840G Wire-Speed Server Load-Balancing Switch

1 2 3 4 5 6

Inhaltsverzeichnis

Seite 1 - DATA SHEET

Technical InformationDATA SHEETCatalyst 4840G Server Load-Balancing Switch Wire-Speed Firewall and ServerLoad-Balancing, Layer-3 SwitchingTHE CATALYST

Seite 2 - L-3 Switching Features

Introducing the Catalyst 4840G SLB SwitchThe Catalyst 4840G is a ﬁxed-conﬁguration SLB switch with 40RJ-45 10/100 ports and two Gigabit Ethernet uplin

Seite 3

Advanced Load BalancingThe Catalyst 4840G is a fixed-configuration SLB switch that isbased on industry-standard Cisco IOS software and, therefore,gain

Seite 4 - Standards

4840G, LocalDirector, or Catalyst 6000 switches, is crucial indelivering mission-critical applications and services. Content FlowMonitor takes a signi

Seite 5

• IEEE 802.3z 1000BaseX speciﬁcation• 1000BaseX (GBIC)• 1000BaseSX/LX/LH/ZX• IEEE 802.3u 100BaseTX speciﬁcation• IEEE 802.3 10BaseT speciﬁcationY2K• Y

Seite 6

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Inhaltsverzeichnis

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