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20 FastIron Ethernet Switch Administration Guide
53-1002637-02
Network Time Protocol Version 4 (NTPv4)
2
Syntax: show logging
The first message (the one on the bottom) indicates that user “dg” logged in to the CLI User EXEC
level on October 15 at 5:38 PM and 3 seconds (Oct 15 17:38:03). The same user logged into the
Privileged EXEC level four seconds later.
The user remained in the Privileged EXEC mode until 5:59 PM and 22 seconds. (The user could
have used the CONFIG modes as well. Once you access the Privileged EXEC level, no further
authentication is required to access the CONFIG levels.) At 6:01 PM and 11 seconds, the user
ended the CLI session.
Disabling the Syslog messages and traps
Logging of CLI access is enabled by default. If you want to disable the logging, enter the following
commands.
Brocade(config)# no logging enable user-login
Brocade(config)# write memory
Brocade(config)# end
Brocade# reload
Syntax: [no] logging enable user-login
Cancelling an outbound Telnet session
If you want to cancel a Telnet session from the console to a remote Telnet server (for example, if the
connection is frozen), you can terminate the Telnet session by doing the following.
1. At the console, press Ctrl+^ (Ctrl+Shift-6).
2. Press the X key to terminate the Telnet session.
Pressing Ctrl+^ twice in a row causes a single Ctrl+^ character to be sent to the Telnet server. After
you press Ctrl+^, pressing any key other than X or Ctrl+^ returns you to the Telnet session.
Network Time Protocol Version 4 (NTPv4)
NTPv4 feature synchronizes the local system clock in the device with the UTC. The synchronization
is achieved by maintaining a loop-free timing topology computed as a shortest-path spanning tree
rooted on the primary server. NTP does not know about local time zones or daylight-saving time. A
time server located anywhere in the world can provide synchronization to a client located anywhere