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To prevent a telnet user from locking the command line shell, establish a command line connection to
the SNC 6101 and enter:
shellLock 1
To unlock the shell enter:
shellLock 0
Using Telnet
When opening a telnet connection to the SNC 6101, you must ensure that:
•
A valid user account and password exists
•
ShellLock is set to 0
•
No other administrator is accessing the SNC 6101 through telnet
To open a session to the SNC 6101, start telnet and enter open x.x.x.x where x.x.x.x is the IP
address of the SNC 6101. You could also type telnet x.x.x.x.
Once a session is opened, the connection will remain locked until the telnet session is closed or the SNC
6101 is rebooted.
Once a telnet session is open, no other user may administer the SNC
CAUTION
6101 from the command line. This includes both telnet and serial port
connections. This is a function of the VxWorks operating system to
prevent simultaneous updates by multiple users.
Even when the shell is locked, the ADIC Management Console will be able to
Note
manage the SNC 6101.
Removal and Replacement Procedures
The following describes the removal and replacement procedures for the SNC 6101 in its entirety or for one
or more of its SFPs.
Handling Electrostatic Discharge-Sensitive Parts
Ensure that you follow established industry procedures when handling Electrostatic Discharge (ESD)
Sensitive Parts.
•
Keep the ESD-sensitive part in a static-protective bag until it's ready to install.
•
Minimize body movements to prevent static electricity being generated from clothing, fibers,
carpets, and furniture.
•
Prior to touching an ESD-sensitive part, first discharge your body by touching the metal frame or
cover of the equipment. If possible, keep one hand on the frame when you install or remove an
ESD-sensitive part.
•
Wearing an ESD wrist strap is always recommended.
•
Do not place any ESD-sensitive parts on the equipment cover or on a metal table. Large metal
objects can become discharge paths if not grounded.
•
If you must set aside an ESD-sensitive part, first place it into the ESD static-protective bag.
•
Prevent ESD-sensitive parts from being accidentally touched by other personnel.
SNC 6101 User's Guide
35
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