Avaya Configuring BOOTP Services Bedienungsanleitung PDF herunterladen (Seite 42)

Configuring SNMP, BootP, and DHCP Services

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308644-15.1 Rev 00

Memory Considerations

Polling statistics to determine whether they have reached a threshold and reporting

events when variables exceed thresholds require router processing capacity. When

you set many thresholds and use shorter polling intervals, the router performance

will probably decline.

BootP Relay Agent Overview

BootP is built on the client-server model and allows a diskless client to boot

remotely from a server on the same network or on a different physical network.

The client broadcasts a request to boot from a remote server. When a suitable

server receives the BOOTREQUEST packet, it responds to the client by issuing a

BOOTREPLY packet, which includes the client’s IP address, the address of the

gateway, and the address of a server. The server then transmits the boot file to the

client via a transfer protocol, such as Trivial File Transfer Protocol (TFTP).

Figure 2-2

illustrates how BootP works when the client and the server are on the

same network. The client transmits a BOOTREQUEST packet to the IP broadcast

address (255.255.255.255). The server sends a BOOTREPLY packet to the client.

Depending on the server’s implementation, the server addresses the packet to

either the broadcast address or the client’s IP address.

Figure 2-2. BootP Client and Server on the Same Physical Network

Server sends acknowledgment

to the client (BOOTREPLY).

Client broadcasts a request

to boot from a remote server

(BOOTREQUEST).

Client Server

SNM0002A

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Avaya Configuring BOOTP Services Bedienungsanleitung Seite 42