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418
System Management
•
ip-address —
One of the device’s interface addresses to use as a source address for the probes. The
device normally selects what it feels is the best source address to use.
•
tos —
The
Type-Of-Service byte in the IP Header of the packet. (Range: 0 - 255)
Default Configuration
•
The default number of bytes in a packet is 40.
•
The default maximum TTL value is 30.
•
The default number of probes to be sent at each TTL level is 3.
•
The default timeout interval in seconds is 3.
Command Mode
User EXEC mode.
User Guidelines
•
The
traceroute
command takes advantage of the error messages generated by the routers when a
datagram exceeds its time-to-live (TTL) value.
•
The
traceroute
command starts by sending probe datagrams with a TTL value of one. This causes the
first router to discard the probe datagram and send back an error message. The
traceroute
command
sends several probes at each TTL level and displays the round-trip time for each.
•
The
traceroute
command sends out one probe at a time. Each outgoing packet may result in one or
two error messages. A "time exceeded" error message indicates that an intermediate router has seen
and discarded the probe. A "destination unreachable" error message indicates that the destination
node has received the probe and discarded it because it could not deliver the packet. If the timer goes
off before a response comes in, the
traceroute
command prints an asterisk (*).
•
The
traceroute
command terminates when the destination responds, when the maximum TTL is
exceeded or when the user interrupts the trace by pressing
Esc
.
book.book Page 418 Thursday, December 18, 2008 7:40 PM
Содержание PowerConnect 3500 Series
Страница 62: ...62 Command Groups book book Page 62 Thursday December 18 2008 7 40 PM ...
Страница 80: ...80 Command Modes book book Page 80 Thursday December 18 2008 7 40 PM ...
Страница 124: ...124 Address Table Commands book book Page 124 Thursday December 18 2008 7 40 PM ...
Страница 162: ...162 DHCP Snooping book book Page 162 Thursday December 18 2008 7 40 PM ...
Страница 244: ...244 Line Commands book book Page 244 Thursday December 18 2008 7 40 PM ...
Страница 266: ...266 LLDP Commands book book Page 266 Thursday December 18 2008 7 40 PM ...
Страница 276: ...276 Login Banner book book Page 276 Thursday December 18 2008 7 40 PM ...
Страница 280: ...280 PHY Diagnostics Commands book book Page 280 Thursday December 18 2008 7 40 PM ...
Страница 290: ...290 Power over Ethernet Commands book book Page 290 Thursday December 18 2008 7 40 PM ...
Страница 294: ...294 Port Channel Commands book book Page 294 Thursday December 18 2008 7 40 PM ...
Страница 298: ...298 Port Monitor Commands book book Page 298 Thursday December 18 2008 7 40 PM ...
Страница 310: ...310 QoS Commands book book Page 310 Thursday December 18 2008 7 40 PM ...
Страница 318: ...318 RADIUS Commands book book Page 318 Thursday December 18 2008 7 40 PM ...
Страница 414: ...414 Syslog Commands book book Page 414 Thursday December 18 2008 7 40 PM ...
Страница 440: ...440 TACACS Commands book book Page 440 Thursday December 18 2008 7 40 PM ...
Страница 452: ...452 TIC Commands book book Page 452 Thursday December 18 2008 7 40 PM ...
Страница 460: ...460 Tunnel book book Page 460 Thursday December 18 2008 7 40 PM ...
Страница 492: ...492 VLAN Commands book book Page 492 Thursday December 18 2008 7 40 PM ...
Страница 500: ...500 Voice VLAN book book Page 500 Thursday December 18 2008 7 40 PM ...
Страница 514: ...514 Web Server book book Page 514 Thursday December 18 2008 7 40 PM ...