Alcatel-Lucent OmniAccess 700, Руководство по настройке CLI

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System Configuration and Monitoring
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54
Beta Beta
CLI Configuration Guide
Alcatel-Lucent
T
RACEROUTE
The traceroute utility displays the route used by IP packets on their way to a
specified network/host, across a TCP/IP network. It displays the IP number and
host name of the machines along that route. It is used as a network debugging
tool. If there are network connectivity problems, it will show the origin of the
trouble along the route.
Traceroute is also a troubleshooting utility like ping, which gives you the
information about the exact hops taken by a packet to reach its destination.
E
XAMPLE
ALU> traceroute 10.91.10.178
traceroute to (10.91.10.178), 30 hops max, 38 byte packets.
1 10.91.0.1 (10.91.0.1) 0.700 ms 0.703 ms 0.621 ms
2 10.91.10.178 (10.91.10.178) 0.951 ms 0.961 ms 0.960 ms
E
XTENDED
T
RACEROUTE
The extended traceroute command is a variation of the traceroute command. An
extended traceroute command can be used to see what path packets take in
order to get to a destination. The command can also be used to check routing at
the same time. This is helpful for troubleshooting routing loops, or to determine
where packets are getting lost. You can use the extended ping command in order
to determine the type of connectivity problem, and then use the extended
traceroute command in order to narrow down where the problem occurs.
A "time exceeded" error message indicates that an intermediate communication
server has seen and discarded the packet. 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, trace prints an asterisk(*). The command terminates when
any of these happens:
•
the destination responds
•
the maximum TTL is exceeded
•
the user interrupts the trace with the escape sequence.
Command (in UM) Description
traceroute [ vrf <vrf-name> ]
{< ip-address> |< hostname> }
This command displays the route taken
by IP packets.