PLANET WGSW-50040 - Manual (Page 254)

35-25
of the Traceroute6 under IPv6 is the same as that under IPv4, which adopts the hop limit field of the ICMPv6
and IPv6 header. First, Traceroute6 sends an IPv6 datagram (including source address, destination address
and packet sent time) whose HOPLIMIT is set to 1. When first route on the path receives this datagram, it
minus the HOPLIMIT by 1 and the HOPLIMIT is now 0. So the router will discard this datagram and returns
with a 「ICMPv6 time exceeded」 message (including the source address of the IPv6 packet, all content in the
IPv6 packet and the IPv6 address of the router). Upon receiving this message, the Traceroute6 sends another
datagram of which the HOPLIMIT is increased to 2 so to discover the second router. Plus 1 to the HOPLIMIT
every time to discover another router, the Traceroute6 repeat this action till certain datagram reaches the
destination.
Traceroute6 Options and explanations of the parameters of the Traceroute6 command please refer to
traceroute6 command chapter in the command manual.
35.5 Show
show command is used to display information about the system , port and protocol operation. This part
introduces the show command that displays system information, other show commands will be discussed in
other chapters.
Admin Mode
show debugging Display the debugging state.
show flash Display the files and the sizes saved in the flash.
show history Display the recent user input history command.
show memory Display content in specified memory area.
show running-config
Display the switch parameter configuration
validating at current operation state.
show startup-config
Display the switch parameter configuration
written in the Flash Memory at current operation
state, which is normally the configuration file
applied in next time the switch starts up.
show switchport interface [ethernet
]
Display the VLAN port mode and the belonging
VLAN number of the switch as well as the Trunk
port information.
show tcp
Display the TCP connection status established
currently on the switch.
show udp
Display the UDP connection status established
currently on the switch.
show telnet login
Display the information of the Telnet client which
currently establishes a Telnet connection with
the switch.