Specifications
hg-c.fm
A31003-H3580-M103-2-76A9, 01-2009
HiPath 3000/5000 V8 - HG 1500 V8, Administrator Documentation
C-1
Nur für den internen Gebrauch
WAN/LAN Management
Utility Programs for TCP/IP Diagnostics
C WAN/LAN Management
The administration of linked networks in WAN/LAN is a highly technical procedure. When per-
forming this task, configuration problems will always crop up which need to be corrected quickly
and efficiently. The information provided in the following sections is intended to help you in such
cases.
C.1 Utility Programs for TCP/IP Diagnostics
Any operating system provides tools designed for finding faults in a TCP/IP environment which
do not have an obvious explanation. As each operating system includes its own tools and cor-
responding command parameters, only the main Microsoft operating system functions are de-
scribed here. Other tools for UNIX-based operating systems are described in detail in RFC
1147. Special parameters are contained in the Help for the corresponding operating system
and can normally be queried by entering <Command> -?
C.1.1 ping
The tool most often used is probably the ping command. This command allows you to check
whether a computer in the network can be reached, that is whether communication with that
computer is possible. An ICMP ECHO message is sent to the computer and then returned to
the sender. If the answer reaches the sending computer, communication with the specified
computer is possible. Most variants of the PING command produce connection statistics.
Syntax for Windows operating systems:
:
ping <Host> [<Parameter>]
The following entries are possible for <Parameter>:
<Host> Contains the destination address or the host name of the destination com-
puter
-t Uninterrupted transfer of test packets to the computer. Normally only 4 test
packets are transferred.
-a IP addresses are resolved to host names.
-n <number> Sends <Number> test packets to the computer.
-l <size> Sends test packets with <Size> bytes
-I <TTL> Number of router hops allowed for one packet. The counter is set to a start-
ing value by the sender and decremented by each router that forwards the
packet.