Extreme Networks Summit WM Series Dokumentacja Pobierz pdf (Strona 15)

HWC_GSG_Chapter 1_Overview.fm

Summit WM-Series WLAN Switch Software Solution

Conceptual model

120385-00 Rev 01, March 2007

Summit WM, Getting Started Guide 15

• DHCP Server (Dynamic Host Configuration Protocol) – A server that

assigns the IP addresses, gateways, and subnet masks dynamically. The

external DHCP server depicted in Figure 2-1 is primarily utilized to provide

addresses to infrastructure equipment such as APs. The IP addresses to the

mobile devices are provided by the built-in DHCP server of Summit WM

Switch. You can also configure the Summit WM Switch to relay DHCP

requests to the external DHCP server.

• SLP (Service Location Protocol) – A service discovery protocol that allows

computers and other devices to find services in a local area network without

prior configuration. The client applications are user agents and services that

are advertised by a service agent. In larger installations, a directory agent

collects information from service agents and creates a central repository. SLP

is one of the several modes that the Summit WM Switch uses to discover the

Altitude APs.

• Domain Name Server – A server that translates the domain names into IP

addresses. The DNS is used as an alternative mechanism for the automatic

discovery process. The Summit WM Switch, its software, and the APs rely on

the DNS for Layer 3 deployments. In addition, DNS is utilized for the static

configuration of APs. The Summit WM Switch can be registered in DNS to

provide DNS assisted AP discovery.

2.1.4 Discovery mechanism in Summit WM-Series

WLAN Solution

The Summit WM-Series WLAN Solution provides auto-discovery capabilities

between the following components:

• Altitude APs and Summit WM Switch

• Mobility manager and mobility agents (For more information, see Chapter 9,

“Availability and Mobility configuration”.)

2.1.4.1 Discovery mechanism between Altitude AP and

Summit WM Switch

The Altitude APs discover the Summit WM Switch by one of the following modes:

• SLP (Multicast and Unicast) – For more information, see SLP’s description in

Section 2.1.4, “Discovery mechanism in Summit WM-Series WLAN Solution”,

on page 15.

• DNS – For more information, see Domain Name Server’s description in

Section 2.1.4, “Discovery mechanism in Summit WM-Series WLAN Solution”,

on page 15.

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Extreme Networks Summit WM Series Dokumentacja Strona 15