Juniper Networks J-Series manual Web Diagnostic Tools Overview

J-series™ Services Router Administration Guide

Table 104: J-series Diagnostic Terms (continued)

Term	Definition
strict source routing	Option in the IP header used to route a packet based on information supplied by the source. A
	gateway or host must route the packet exactly as specified by this information.
time to live (TTL)	Value (octet) in the IP header that is (usually) decremented by 1 for each hop the packet passes
	through. If the field reaches zero, the packet is discarded and a corresponding error message is
	sent to the source of the packet.
type of service (TOS)	Value (octet) in the IP header that defines the service the source host requests, such as the
	packet's priority and the preferred delay, throughput, and reliability.

Diagnostic Tools Overview

Use the J-Web Diagnose options to diagnose a Services Router. J-Web results are displayed in the browser.

You can also diagnose the router with CLI operational mode commands. CLI command output appears on the screen of your console or management device, or you can filter the output to a file.

This section contains the following topics. To filter output to a file, see “Filtering

Command Output” on page 105.

■J-Web Diagnostic Tools Overview on page 210

■CLI Diagnostic Commands Overview on page 211

■MPLS Connection Checking on page 213

J-Web Diagnostic Tools Overview

The J-Web diagnostic tools consist of the options that appear when you select Diagnose and Manage in the task bar. Table 105 on page 210 describes the functions of the Diagnose and Manage options.

Table 105: J-Web Interface Diagnose and Manage Options

Option	Function
Diagnose Options
Ping Host	Allows you to ping a remote host. You can configure advanced options for the ping operation.
	For details, see “Using the J-Web Ping Host Tool” on page 216.
Ping MPLS	Allows you to ping an MPLS endpoint using various options.
	For details, see “MPLS Connection Checking” on page 213.

210■ Diagnostic Tools Overview