Nortel Networks OPTera Metro 3500 - Manual (Page 168)

2-130 Operation, administration, and maintenance (OAM) features
OPTera Metro 3500 Multiservice Platform NTRN10AN Rel 12.1 Standard Iss 1 Apr 2004
The existence of any blocking conditions on the shelf processor and/or the
network processor can block the Save and Restore application from executing
any further actions. Users are able to check for the existence of Save and
Restore blocking conditions.
A Save and Restore activity can be terminated at any point before the action is
complete. Users can also recommence the Save and Restore application after
the application has been arrested.
Application of TL1 commands from a TL1 script file
A TL1 script file is a collection of TL1 commands which by their nature
impact the configuration of a network element. These TL1 commands are
captured by logging the Data Base Changes commands for all individual
network elements and storing them on a remote database. During a TL1 Script
Load, a script file is created from the logged database TL1 commands,
downloaded from the remote location, and temporarily stored on the network
processor’s file system. Once the file is successfully stored, each TL1
command contained in the script file is issued on the target network element
following a ‘commit’.
The user is able to apply TL1 scripts to a single network element after the
Restore process by issuing a TL1 Script-specific set of commands to Load and
Commit TL1SCRPT to that specific network element. This process is similar
to the Restore and Commit Provisioning data applications. TL1 commands
issued to the targeted network element from the TL1 script that did not
complete successfully are logged onto that targeted network element.
Security levels
OPTera Metro 3500 network elements and network processors support
multiple security access levels. This feature reduces accidental or intrusive
interruption of service.
There are five UPC security levels that allow a range of task execution
capabilities:
Level 5
• Surveillance allows surveillance of all network elements in the network
processor span of control. A user account with a level 5 UPC can only be
used to log into a network processor using a local connection. A user
account with a level 5 UPC is valid only under the following
circumstances:
— a login to the network processor from Preside or a managed object
agent (MOA)
— a login to the network processor, if the network processor is the
gateway to the network