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Nortel Networks WEB OS 212777 User Manual

Page 220

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Web OS 10.0 Application Guide

220

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Chapter 10: Health Checking

212777-A, February 2002

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“FTP Server Health Checks” on page 234

. This section describes how the File Trans-

fer Protocol (FTP) server is used to perform health checks and explains how to con-
figure the switch to perform FTP health checks.

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“POP3 Server Health Checks” on page 235

. This section explains how to use Post

Office Protocol Version 3 (POP3) mail server to perform health checks between a cli-
ent system and a mail server and how to configure the switch for POP3 health checks.

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“SMTP Server Health Checks” on page 236

. This section explains how to use Simple

Mail Transfer Protocol (SMTP) mail server to perform health checks between a client
system and a mail server and how to configure the switch for SMTP health checks.

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“IMAP Server Health Checks” on page 237

. This section describes how the mail

server Internet Message Access Protocol (IMAP) protocol is used to perform health
checks between a client system and a mail server.

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“NNTP Server Health Checks” on page 238

. This section explains how to use Net-

work News Transfer Protocol (NNTP) server to perform health checks between a cli-
ent system and a mail server and how to configure the switch for NNTP health checks

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“RADIUS Server Health Checks” on page 239

. This section explains how the

RADIUS protocol is used to authenticate dial-up users to Remote Access Servers
(RASs).

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“HTTPS/SSL Server Health Checks” on page 240

. This section explains how the

switch queries the health of the SSL servers by sending an SSL client “Hello” packet
and then verifies the contents of the server’s “Hello” response.

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“WAP Gateway Health Checks” on page 240

. This section discusses how the Web

switch provides a connectionless WSP health check for WAP gateways.

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“LDAP Health Checks” on page 243

. This section describes how to configure the

switch to perform Lightweight Directory Access Protocol (LDAP) health checks for
the switch to determine whether or not the LDAP server is running.

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“ARP Health Checks” on page 245

. This section describes how to perform health checks

on Intrusion Detection Servers (IDS) that do not have full TCP/IP stack support.

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“Failure Types” on page 246

. This section explains the service failed and server failed

states.