Information Technology Reference
In-Depth Information
Figure15-6 All-Zeros 1500-Byte ping Test
yowzers#
ping
Protocol [ip]:
Target IP address:
192.169.51.22
Repeat count [5]:
100
Datagram size [100]:
1500
Timeout in seconds [2]:
Extended commands [n]:
y
Source address:
192.169.51.14
Type of service [0]:
Set DF bit in IP header? [no]:
Validate reply data? [no]:
Data pattern [0xABCD]:
0x0000
Loose, Strict, Record, Timestamp, Verbose[none]:
Sweep range of sizes [n]:
Type escape sequence to abort.
Sending 100, 1500-byte ICMP Echos to 192.169.51.22, timeout is 2 seconds:
Packet has data pattern 0x0000
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Success rate is 100 percent (100/100), round-trip min/avg/max = 4/6/8 ms
yowzers#
1500 byte
packet size
All zeros
ping
Figure15-7 All-Ones 1500-Byte ping Test
zounds#
ping
Protocol [ip]:
Target IP address:
192.169.51.22
Repeat count [5]:
100
Datagram size [100]:
1500
Timeout in seconds [2]:
Extended commands [n]:
y
Source address:
192.169.51.14
Type of service [0]:
Set DF bit in IP header? [no]:
Validate reply data? [no]:
Data pattern [0xABCD]:
0xffff
Loose, Strict, Record, Timestamp, Verbose[none]:
Sweep range of sizes [n]:
Type escape sequence to abort.
Sending 100, 1500-byte ICMP Echos to 192.169.51.22, timeout is 2 seconds:
Packet has data pattern 0xFFFF
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Success rate is 100 percent (100/100), round-trip min/avg/max = 4/6/8 ms
zounds#
1500 byte
packet size
All ones
ping
Troubleshooting Clocking Problems
Clocking conflicts in serial connections can lead either to chronic loss of connection service or to
degraded performance. This section discusses the important aspects of clocking problems: clocking
problem causes, how to detect clocking problems, how to isolate clocking problems, and clocking
problem solutions.
