Cisco Systems 78-16356-01 System Hardware Features, Front Panel Features Rear Panel Features

Chapter 1 Introduction

System Hardware Features

The GSS is the cornerstone of disaster recovery in such distributed deployments and enables businesses to confidently deploy global Internet and intranet applications with the knowledge that users will be quickly routed to standby data centers should problems occur.

The GSS is deployed at strategic locations within your network. The GSS performs two major functions when deployed with other SLBs by:

•Taking an active role in the domain name server (DNS) infrastructure, connecting clients to SLBs that support the requested website.

•Continuously monitoring the load and availability of SLBs in its network, selecting the SLB that is most able to answer each client request.

By off-loading DNS resolution from traditional DNS servers, the GSS optimizes global site selection and increases DNS responsiveness. The GSS increases the fault tolerance and scalability of large websites and data centers through its monitoring of load and availability.

System Hardware Features

The GSS is designed for AC-input power and has a single AC-input power supply. The GSS includes:

•An integrated dual-port Ethernet controller that provides an interface for connecting to 10-Mbps,100-Mbps,or 1000-Mbps networks.

•Two 10BASE-T/100BASE-TX/1000BASE-TX Ethernet ports with RJ-45 receptacles.

Both Ethernet ports support autonegotitate, full-duplex, or half-duplex operation on an Ethernet LAN.

This section includes the following topics:

•Front Panel Features

•Rear Panel Features

	Cisco Global Site Selector 4491 Hardware Installation Guide
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