Cisco PIX 525 Specifikace stáhnout pdf (Strana 314)

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Cisco PIX Firewall and VPN Configuration Guide

78-15033-01

Chapter 9 Accessing and Monitoring PIX Firewall

Using Network Time Protocol

Viewing NTP Status and Configuration

This section describes the information available about NTP status and associations. To view information

about NTP status and configuration, use any of the following commands:

• show ntp associations—displays information about the configured time servers.

• show ntp associations detail—provides detailed information.

• show ntp status—displays information about the NTP clock.

The following examples show sample output for each command and the following tables define the

meaning of the values in each column of the output.

Example 9-1 shows sample output from the show ntp associations command.

Example 9-1 Sample Output from show ntp association Command

PIX> show ntp associations

address ref clock st when poll reach delay offset disp

~172.31.32.2 172.31.32.1 5 29 1024 377 4.2 -8.59 1.6

+~192.168.13.33 192.168.1.111 3 69 128 377 4.1 3.48 2.3

*~192.168.13.57 192.168.1.111 3 32 128 377 7.9 11.18 3.6

* master (synced), # master (unsynced), + selected, - candidate, ~ configured

The first characters in a display line can be one or more of the following characters:

• * —Synchronized to this peer

• # —Almost synchronized to this peer

• + —Peer selected for possible synchronization

• - —Peer is a candidate for selection

• ~ —Peer is statically configured

Table 9-1 describes the meaning of the values in each column:

Ta b l e 9-1 Output Description from ntp association Command

Output Column Heading Description

address Address of peer.

ref clock Address of reference clock of peer.

st Stratum of peer.

when Time since last NTP packet was received from peer.

poll Polling interval (in seconds).

reach Peer reachability (bit string, in octal).

delay Round-trip delay to peer (in milliseconds).

offset Relative time of peer clock to local clock (in milliseconds).

disp Dispersion.

1 2 ... 309 310 311 312 313 314 315 316 317 318 319 ... 465 466

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Cisco PIX 525 Specifikace Strana 314