Cisco PIX 525 Spezifikationen PDF herunterladen (Seite 316)

9-14

Cisco PIX Firewall and VPN Configuration Guide

78-15033-01

Chapter 9 Accessing and Monitoring PIX Firewall

Using Network Time Protocol

Example 9-3 provides sample output for the show ntp status command:

Example 9-3 Output of the show ntp status Command

pixfirewall(config)# show ntp status

Clock is synchronized, stratum 5, reference is 172.23.56.249

nominal freq is 99.9984 Hz, actual freq is 100.0266 Hz, precision is 2**6

reference time is c02128a9.73c1954b (20:29:29.452 UTC Fri Feb 22 2002)

clock offset is -0.2403 msec, root delay is 42.51 msec

root dispersion is 135.01 msec, peer dispersion is 125.21 msec

Table 9-3 describes the meaning of the values in each column:

peer poll intvl Peer's poll interval to us.

root delay Delay along path to root (ultimate stratum 1 time source).

root disp Dispersion of path to root.

reach Peer reachability (bit string in octal).

sync dist Peer synchronization distance.

delay Round-trip delay to peer.

offset Offset of peer clock relative to our clock.

dispersion Dispersion of peer clock.

precision Precision of peer clock in hertz.

version NTP version number that peer is using.

org time Originate time stamp.

rcv time Receive time stamp.

xmt time Transmit time stamp.

filtdelay Round-trip delay (in milliseconds) of each sample.

filtoffset Clock offset (in milliseconds) of each sample.

filterror Approximate error of each sample.

Table 9-2 Output Description from ntp association detail Command (continued)

Output Column Heading Description

Ta b l e 9-3 Output Description from ntp status Command

Output Column Heading Description

synchronized System is synchronized to an NTP peer.

unsynchronized System is not synchronized to any NTP peer.

stratum NTP stratum of this system.

reference Address of peer to which the system is synchronized.

nominal freq Nominal frequency of system hardware clock.

actual freq Measured frequency of system hardware clock.

precision Precision of the clock of this system (in hertz).

reference time Reference time stamp.

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Cisco PIX 525 Spezifikationen Seite 316