Cisco LS2020 User manual

CHAPTER
Operations and Management 1-1
1
Operations and Management
This chapter provides a list of activities you should complete before you attempt to operate your
network of LightStream 2020 multiservice ATM switches (LS2020 switches).
This chapter also lists the operations and management activities that you can perform on a network of
LS2020 ATM switches. It describes the tools and methods that you can use to manage your network,
depending on your hardware and software configuration.
Where to Begin
Before you attempt to operate your network, each LS2020 switch should be fully installed, powered on, and
configured. Thefollowingchecklistspecifiesthetasks thatshould becomplete beforeyoubeginoperatingand
managing your network. For information on these tasks, see the LightStream 2020 Installation Guide and
theLightStream 2020 Configuration Guide, orcheckwithyour networkadministrator.See theappropriate
setup procedures described in the LightStream 2020 Installation Guide. Depending on how you choose to
set up your network, you may not need to perform all of the setup procedures.
Things to Do Before Operating Your LS2020 Network
1Read the LightStream 2020 System Overview and become familiar with the LS2020 documentation set.
2Make sure that the installation is complete, the network is powered up, and basic configuration
information has been entered.
3Make sure that the appropriate setup procedures have been completed.
4Become familiar with the CLI and any other network management tools available to you.
Network Operation Tasks
You can perform a wide variety of tasks on your LS2020 network. You will perform some tasks every
day and others only occasionally. This section lists the many different types of tasks that you will
perform.

1-2 LightStream 2020 Network Operations Guide
Network Operation Tasks
Monitoring Tasks
•Display the status of hardware (chassis, cards, ports, and circuits)
•Display the operating parameters for the modem interface
•Display the status of system processes (such as the CLI, SNMP, the collector, global information
distribution, neighborhood discovery)
•Display the temperature or voltage of a particular card
•Display the physical topology of the network
•View per port and per circuit statistics
•Monitor MIB object values
•Display traps and alarms
Control Tasks •Configure a switch
•Change the existing network configuration
•Define and assign bridge, IP, and IPX filters
•Write command line interface (CLI) scripts
•Perform an orderly shutdown
•Isolate port problems
•Collect statistics
•Activate and deactivate cards, ports, and circuits
•Load diagnostics (to diagnose network problems)
•Verify the software installation
•Customize traps
•Change MIB attribute values
•Force a switch card to become the primary or secondary TCS hub
Administrative Tasks
•Create new user accounts
•Set or change account passwords
•Set or change the SNMP community
•Change the default modem password and init string
•Create a backup of the network configuration on floppy disks
•Copy files between switches
•Change the default trap delivery addresses

Operations and Management 1-3
Management Tools
Management Tools
You can use the following methods to manage an LS2020 network:
•LS2020 network management. Use the LS2020 StreamView network management application
to perform most management functions. You can, however, use the CLI on one of the network
processors (NPs) or on a Sun SPARCstation to perform some management tasks, if the
configurator or network management system (NMS) is unavailable. The CLI is also a monitoring
tool, but it is not graphical.
•Network management system. Use an external, SNMP-compatible NMS.
StreamView The LS2020 self-management tools include the StreamViewnetworkmanagement applications.These
applications provide configuration, monitoring, and topology mapping of the LS2020 network. The
following sections give a brief description of these tools.
LS2020 Configurator
The LS2020 configurator is a user-friendly graphical interface that reduces configuration tasks to the simple
clickofamouse button.As network administratoryoucanuse the LS2020 configurator to manage a network
ofLS2020multiservice ATMswitches.Formoreinformationontheconfigurator,seetheLightStream2020
Configuration Guide. If the configurator is unavailable to you, you can use the CLI commands in this
document to perform many management tasks.
LS2020 Monitor The LS2020 monitor provides graphical displays of individual LS2020 systems, cards, and ports. In
most instances you will want to use it to monitor the network. However, if the monitor is unavailable
to you, you can use the CLI commands in this document to perform many monitoring tasks. For
more information on the LS2020 monitor, see the Monitoring a LightStream 2020 Switch chapter.
LS2020 Topology Map
The LS2020 topology map provides a graphical display of the physical topology of an LS2020
network. You can modify the LS2020 map by moving nodes, changing node or trunk labels,
grouping nodes into submaps, or deleting nodes or trunks. For more information on the LS2020
topology manager, see the Monitoring a LightStream 2020 Switch chapter.
Command Line Interface
The CLI is a simple, line-based interface that runs on an LS2020 switch or a Sun SPARCstation. You
can access the CLI by connecting a terminal to the console port on the console/modem assembly on
an LS2020 switch, by using Telnet to access the NP, or by running the CLI on a Sun SPARCstation.
You can use the CLI to change and display the settings of configuration attributes on a local switch.
It also enables you to make those changes in the NP’s run-time memory only or to run-time memory
and the switch’s hard disk. For more information on the CLI, see the Command Line Interface
chapter.

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Network Management Scenarios
SNMP-Compatible Network Management Tools
You can use any industry standard SNMP-compatible NMS to monitor an LS2020 network. The
NMS can be connected to the LS2020 switch through the Ethernet interface on the NP or through
the Ethernet or FDDI interface on the packet line card (PLC).
The following three systems can be used with the LS2020 switch:
•OpenView, Release 3.0 from Hewlett-Packard
•SunNet Manager, Release 2.0 from SunConnect
•NetDirector Enterprise Network Management software from Ungermann-Bass
You cannot configure an LS2020 network using an NMS alone. LS2020 switches and networks are
configured with the LS2020 configurator. For information on the LS2020 configurator, see the
LightStream 2020 Configuration Guide.
You can manage an LS2020 network with StreamView or with an external SNMP-compatible NMS.
Regardless of which system you use, the management software communicates with the managed
devices using SNMP.
TheLS2020documentationsetdoes not provide instructionsonhowtouse an NMS. See the product
documentation for your NMS for specific instructions.
Network Management Scenarios
You can manage your network in a number of different ways, depending on your hardware and
software and whether you want traps to be interleaved with, or separated from, your general
monitoring and control functions. Table 1-1 lists the different network scenarios that you may
consider using to monitor and control the network.
The preferred method of network configuration, monitoring and control is with the LS2020
configurator and the LS2020 monitor running on a Sun SPARCstation as described in the first
scenario listed in Table 1-1. The user-friendly features of these programs reduce many tasks to the
click of a mouse button.
If you choose the last four scenarios listed in Table 1-1, you must configure the network using the
LS2020 configurator on a Sun SPARCstation before you can perform routine monitoring and control
tasks on any or all of the systems. LS2020 documentation and customer support provide only limited
support for the last three scenarios.
Note You can access traps from a single instance of CLI running on an NP or from one instance of
a third-party trap monitoring tool running on a workstation. If you attempt to display traps on a
second instance of either program running on another single processor (the NP or workstation), a
message displays indicating that traps have been intercepted by another user.

Operations and Management 1-5
Network Management Scenarios
Table 1-1 Network Management Scenarios
Scenario Description
Manage network from
a Sun SPARCstation
using the LS2020
configurator, monitor, and
the CLI.
Configure, monitor, and control the network on a Sun SPARCstation using
StreamView. If you cannot access the SPARCstation, you can use the CLI on an
NP to perform management tasks. (Optionally, other SNMP-compatible network
management software can be used.) The configurator, the monitor, and the CLI
run and display on the SPARCstation running SunOS 4.1.x. HP OpenView is
optional. This scenario is the preferred method for network management tasks.
Manage network from VT
100 terminal using the
CLI.1
1. Before you can follow this scenario, you need to configure the network using the LS2020 configurator on a Sun SPARCstation.
Monitor and control the network from the VT100 terminal. However, if you must
add or move hardware or add ports or VCs, you must use the Sun SPARCstation to
run the configurator. The CLI runs on an LS2020 network processor (NP) and displays
on the VT100.
Managenetwork from aSun
SPARCstation
using the CLI and a
third-party trap monitoring
tool.1
Monitor and control the network from the Sun SPARCstation using the CLI and a
third-party NMS. The configurator, the CLI, and the third-party NMS trap
monitoring tool run and display on the SPARCstation.
Manage network from a
non-Sun workstation
using the CLI only.1
Monitor and control the network from the non-Sun workstation using the CLI.
However, if you must add or move hardware or add ports or VCs, you must use
the Sun SPARCstation to run the configurator to complete these tasks. By way of a
Telnet connection, the CLI runs on an LS2020 NP and displays on the workstation.
Manage network from a
non-Sun workstation using
the CLI and a third-party
trap monitoring tool.1
Monitor and control the network from the non-Sun workstation using the CLI
and a third-party trap monitoring tool. However, if you must add or move
hardware or add ports or VCs, you must access the Sun SPARCstation to run the
configurator to complete these tasks. By way of a Telnet connection, the CLI runs on
an LS2020 NP and displays on the workstation. The third-party NMS trap monitoring
tool runs and displays on the workstation.

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Network Management Scenarios