Switch 7700 Configuration Guide

16 CHAPTER 11: SYSTEM MANAGEMENT
You can perform the following operations in all views.
Testing Tools for
Network Connection
ping
The ping command can be used to check the network connection and to verify if
the host is reachable.
Perform the following operation in user view.
The output of the command includes:
■ The response to each ping message. If no response packet is received when
time is out, ”Request time out” information appears. Otherwise, the data
bytes, the packet sequence number, TTL, and the round-trip time of the
response packet will be displayed.
■ The final statistics, including the number of the packets the switch sent out and
received, the packet loss ratio, the round-trip time in its minimum value, mean
value and maximum value.
Tracert (trace route) command
Tracert is used for testing the gateways from the source host to the destination. It
is used for checking if the network is connected and analyzing where faults occur
in the network.
The execution process of tracert is described as follows: Send a packet with TTL
value as 1 and the first hop sends back an ICMP error message indicating that the
packet cannot be sent, for the TTL is timeout. Re-send the packet with TTL value
as 2 and the second hop returns the TTL timeout message. The process is carried
over and over until the packet reaches the destination. The purpose to carry out
the process is to record the source address of each ICMP TTL timeout message, so
as to provide the route of an IP packet to the destination.
Perform the following operation in user view.
Logging Function The Syslog is an indispensable part of the Switch 7700. It serves as an information
center of the system software modules. The logging system is responsible for
most of the information outputs, and it also makes detailed classification to filter
Tab le 30 Display Diagnostic Information
Operation Command
display diagnostic information display diagnostic-information
Tab le 31 The Ping Command
Operation Command
Support IP ping ping [ -a ip-address ] [-c count ] [ -d ] [ -i {interface-type
interface-num | interface-name } ][ ip ] [ -n ] [ - p pattern ]
[ -q ] [ -r ][ -s packetsize ] [ -t timeout ] [ -v ] host
Tab le 32 The Tracert Command
Operation Command
Trace route tracert [ -f first-TTL ] [ -m max-TTL ] [ -p port ] [ -q
nqueries ] [ -w timeout ] host