User`s manual

DT-6061 User's Manual - Platform (Build 16.0)
11/12/04 Datatek Applications Inc. 32
7 DIAGNOSTICS
7.1 PING
Syntax: ping <IP Address>
The ping command verifies connections to remote computer or computers, by sending 3 ICMP
echo packets, one second apart, to the remote computer and listening for echo reply packets.
The IP address can use a domain-style address, providing the dns and/or hosts configuration
has been properly entered.
7.2 TRTE ( OR TRACERT)
Syntax: trte <IP Address>
The trte command determines the route taken to a destination by sending Internet Control
Message Protocol (ICMP) echo packets with varying Time-To-Live (TTL) values to the
destination. Each router along the path is required to decrement the TTL on a packet by at least 1
before forwarding it, so the TTL is effectively a hop count. When the TTL on a packet reaches 0,
the router is supposed to send back an ICMP Time Exceeded message to the source system.
Tracert determines the route by sending the first echo packet with a TTL of 1 and incrementing
the TTL by 1 on each subsequent transmission until the target responds or the maximum TTL is
reached. The route is determined by examining the ICMP Time Exceeded messages sent back
by intermediate routers.
The IP address can use a domain-style address, providing the dns and/or hosts configuration
has been properly entered.
7.3 DIAG COMMAND
Syntax: diag <subcommand> <parameters>
The diag command reports a variety of reports and statistics from the DT-6061 console and can
aid in network monitoring and troubleshooting. Diag is provided at the <DT-6061> prompt, but is
not currently displayed with the help command. Using the diag command with no recognized
suboptions results in the message:
diag: Invalid command
Here are the various subcommands of diag:
7.3.1 ADDRESS
Syntax: diag addr <IP Address> <port>
The addr subcommand reports the instance associated with the supplied IP address and port. If
the <port> parameter is 0, all instances with ports associated with the supplied IP address are
reported.
7.3.2 CPU
Syntax: diag cpu
The cpu subcommand reports CPU utilization by process. Processes may be associated with
instance numbers as reported by the vfyapp command.
Sample Output
diag cpu
0: 398711 99%
1: 5014 1%