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The Cisco Digital Subscriber Line Manager (CDM) is a highly scalable, multiprotocol management software package designed specifically for configuring networks of Cisco IOS software-based Digital Subscriber Line Access Multiplexers (DSLAMs). It provides service management and process automation to simplify the management of even the most complex networks. CDM allows you to configure devices, provision connections, detect faults, and track network statistics. The Cisco Element Management Framework (Cisco EMF), on which the CDM is based, delivers a consistent element management solution across the Cisco Service Provider line of business, to provide standards-based interfaces to customer operations support systems.
This chapter describes the basic parts of the CDM and Cisco EMF software and how they interoperate. Topics include:
You can do all of the following with the CDM:
The CDM offers the following benefits:
Release 3.0 of the CDM software provides the following additional features:
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Note Subtending functionality is no longer supported in this version of CDM. |
CDM Release 3.0 supports the Cisco 6260 and Cisco 6130 DSLAM chassis, which are physically similar. The primary difference is that the Cisco 6130 chassis contains a total of 38 slots and the Cisco 6260 chassis contains a total of 32 slots. Table 1-1 indicates the differences between the two chassis.
| Cisco 6260 DSLAM Chassis Includes: | Cisco 6130 DSLAM Chassis Includes: |
|---|---|
2 NI-2 card slots | 2 NI-2 card slots |
30 line card slots | 32 line card slots |
2 DS3 Subtend Host Module (STM) slots | |
2 System Controller Module (SCM) slots |
This user guide describes how to use the CDM software to manage features and components on Cisco DSLAMs.
This section describes the concepts of network and service management associated with the Cisco Digital Subscriber Line Manager (CDM) using the Cisco Element Manager Framework (Cisco EMF). It describes the basic concepts of Cisco EMF (for further information, refer to the Cisco Element Management Framework User Guide). This chapter describes the Cisco EMF commands, icons, and menus that access services on the CDM and provides examples of the available views.
It is important to understand how the CDM, Cisco DSLAM chassis, and Cisco EMF work together or are related. The CDM is software that allows you to monitor the Cisco DSLAM hardware or chassis. Cisco EMF is the software interface that allows you to view this information. The CDM is essentially invisible; you do not see this software at work when you are monitoring Cisco DSLAMs within Cisco EMF.
Figure 1-1 shows a typical deployment and interconnection example for the Cisco DSLAM, in which it is connected to a Cisco 6400 Universal Access Concentrator (UAC) system.
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Note Figure 1-1 shows connections between the Cisco DSLAM and the Cisco 6400 UAC as direct connections. It is also possible for these connections to be indirect (that is, occurring through a switched network). |
Cisco EMF is an open carrier class management system, designed to integrate with third-party products and proprietary operational support systems.
Several different management protocols, both standards-based and proprietary, are supported by
Cisco EMF in a transparent manner. You can manage new network devices instantly and develop new management applications quickly to meet new requirements.
Map Viewer is the primary entry point into the CDM. When you launch Map Viewer, a map is displayed corresponding to the highlighted map icon in the hierarchy pane. You can monitor the status of all network elements, or abstractions of elements, contained within the network and you can launch any available applications.
Refer to the Cisco Element Management Framework User Guide for more information on using Cisco EMF.
Additionally, multiple event browsers and map managers can be run on separate client workstations, allowing a number of users to simultaneously monitor the same or distinct portions of the managed network.
All of a user's applications can be run on client workstations that are remote from the server. This means that the traffic volume on the server depends only on the quantity of data you request from the server. Therefore, the number of users is not limited by the resources required by the applications, all of which run on the client.
You can open multiple user sessions in Cisco EMF. Each user session has access to the tools displayed in the Launchpad. Any changes made in a user session are reflected immediately in all other user sessions.
The Cisco EMF login window restricts user access to the CDM based on a pre-set name/password combination defined by the system administrator.
Cisco EMF maintains a log-in record of users who access the Element Manager windows. This information is provided as ASCII text files, namely ciscoIFMan.audit and ciscoPlatformMan.audit. These files are found in <CEMFROOT>/logs (replace <CEMFROOT> with the directory where Cisco EMF is installed on your machine.)
A map is a graphical representation of related objects being managed. You can define maps in a hierarchy in which each node on a map has a submap. You can view different levels of complexity in the managed network by looking at high level maps or by navigating to submaps which represent lower levels of detail in the managed network.
Nodes and links on a map are graphical symbols representing managed or abstracted objects in the network. A node has an iconic representation, while a link has a vector representation. Links can only exist as a connection between two nodes.
Nodes and links can have submaps, creating a hierarchy of browsable maps. Top-level maps display administrative or physical network domains; submaps display more detail until actual managed elements are represented.
Network nodes display the current alarm status of a represented object. The alarm status of an object reflects the most severe alarm currently active on an object.
A submap relays the most severe alarm status of all its nodes to the corresponding node on the parent map. The node on the parent map then displays the combined severity of its submap and the node it represents.
This means that you can view a top level map and see the overall status of the entire network. When a node on the map shows a condition or alarm, you can view successive submaps until the source of the condition or alarm appears.
The toolbar at the top of each window contains icons that invoke various tools and menu options. The icons displayed in the toolbar vary depending on which window you are viewing. You can disable the toolbar so that it is not displayed in the window. Figure 1-2 shows the toolbar.
The tooltips option displays a brief description of each icon. This description appears when the cursor is left over the icon. Tooltips is enabled by default.
If you want to view which windows you have open, select the Windows menu option. All currently open windows are listed.
Throughout Cisco EMF, you can access menus from map objects, events listed in the Event Browser, and objects listed in any view. To access these pop-up menus, right click the desired object.
Throughout Cisco EMF, you can select either individual or multiple items from lists in the various windows.
The CDM is the carrier class management software for Cisco DSLAMs. The CDM "plugs into" Cisco EMF. You must start a Cisco EMF user session before you can launch the CDM application. The CDM launches when you start Cisco EMF. All CDM information can be accessed through Cisco EMF. Refer to Starting Cisco EMF for further details.
Telecom Graphical Objects (TGO) display additional information icons on top of the existing object icons displayed in Map Viewer. The additional information icons indicate a variety of information, for example, information on the state of the object or event status information. Figure 1-3 provides an example of a Telecom Graphical Object.
Each object can display the following information about its associated network element:
Refer to the Cisco Element Management Framework User Guide for further information.
The Cisco EMF MapViewer (Viewer) application provides flexibility in viewing, building, and monitoring your network using graphical representations of network elements.
To view the chassis map for a selected site:
Step 2 Click the Viewer icon (shown in Figure 1-4) to launch the Map Viewer application or select Map Viewer from a pop-up menu when using other Cisco EMF applications. (To access the menu, right-click on an object.)
A window similar to Figure 1-4 appears.
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Note If you have not yet created background maps, they do not exist. The background appears gray. |
You can resize the Hierarchy area and Map area by positioning your cursor over the boundary; left click with the mouse, then drag the boundary. You can view all information in the left and right areas by using the scroll bars.
You can select one or more object and right-click. This displays the list of services available on an object in a pop-up menu. The services available depend on the class of the object and are enabled or disabled according to the access of the user.
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Note If multiple objects are selected, only the services common to all of the objects are available. |
Step 3 To display objects within a view, click the + sign to the left of the CDM Manager view.
Step 4 To view a chassis map (Figure 1-5), click a shelf object. You can only display the chassis map by clicking on a shelf object.
To launch menus for specific cards or chassis, right-click any cards within the chassis or on the chassis itself.
Each card in the chassis has a color-coded border and label that identify the state the object is in and its current alarm status.
Figure 1-6 shows an example of typical line card menus displayed when you right-click a specific line card.
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Note The most frequently used menu is the Cisco DSL Manager menu. |
The CDM supports a number of alarm sources, including SNMP traps and SNMP alarm tables for Cisco DSLAMs. Additionally, CDM can derive a number of different types of events.
For detailed information on CDM alarms, refer to "Viewing Alarms."
Event Browser is an application that allows you to view events flagged by the system. Figure 1-7 represents a typical launchpad that includes the Event Browser button.
Event Browser displays the following information:
This information appears in a table format. All events are saved within the Event Browser, which displays both current and historical data. You can navigate directly from a single event to the affected object to perform specific configuration or management tasks.
To view the Event Browser window, follow these steps:
Step 2 Select the Cisco EMF Tools > Open Event Browser option.
The Event Browser window appears (Figure 1-8).
The Event Browser window identifies the Severity of the alarm, Object Name, and the Time the alarm occurred.
Step 3 Double-click a selected event to view further details on the event in the Full Event Description window (Figure 1-9).
When the event is not cleared, the Event State displays Active and the Clearing Method, User Responsible for Clearing, and Clearing Time and Date sections are disabled. The information displayed cannot be altered. When an event is cleared, you can view the method used to clear it by clicking the Clearing Event button.
Step 4 Click Close to exit the Full Event Description window.
Step 5 Click Close to exit the Event Browser window.
Refer to the Cisco EMF User Guide for further information on Event Browser.
Full Event Description Window
The Full Event description window displays the following information:
Object name---Displays the name of the managed object for which the event was reported
Severity---Displays the severity of the reported event
Time and Date---Displays the time and date when the event was reported
Event State---Displays the status of the identified event.
Management Domain---Identifies the management domain that reported the event
Communication Domain---Identifies the communications domain that reported the event.
Event Description---Provides a brief description of the reported event
Acknowledgement Details
Acknowledgement User---Displays the name of the user who acknowledged the alarm.
Acknowledgement Time and Date---Displays the time and date when the alarm was acknowledged.
Acknowledgement Comment---Displays comments entered by the acknowledging user.
Clearing Method---Indicates how the event was cleared (by the network or by a user).
User Responsible for Clearing---Identifies who cleared the event (by user name).
Clearing Time and Date---Indicates the time and date when the event was cleared.
You can add the Cisco EMF Event Manager application to the CDM. This optional application enables you to set parameter thresholds and to monitor any supported CDM MIB variable (that is, those that appear in the CDM windows). Contact your Cisco representative for further details on Event Manager.
Views depict hierarchical relationships between objects, both physical and logical. Objects are organized into different views and can exist in multiple views simultaneously by reference. Each object can have a number of "parent" and "child" objects. You can access CDM objects by navigating through one of the views to find the object. Each view represents a different way of containing and grouping objects.
Figure 1-10 shows the CDM Views window.
The views listed in Figure 1-10 are either specific to Cisco EMF or to the CDM. The standard Cisco EMF views are the Network and Physical views. All other views are specific to the CDM.
You can perform most CDM-specific tasks using the cdmManager view. In this view, you can look at physical maps of each Cisco DSLAM chassis. You can access menus on objects by right-clicking on any object.
The CDM includes six different views:
1. Component Managed view
2. Network view
3. Physical view
4. UpLoadView
5. cdmManager view
6. Generic Objects view
The Component Managed view holds all the CDM managed objects in the network. This view shows management relationships between objects. Generally speaking, lower objects in the view are managed by higher objects. Figure 1-11 shows the Component Managed view.
The Network view displays all IP devices under their parent network. This view provides a logical layout of the network structure. It does not provide topology information. Figure 1-12 shows the Network view.
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Note You are not likely to need to use the Network view. |
The Physical view (see Figure 1-13) reflects the physical relationship of objects and provides relevant information to draw maps. The Physical view holds location information for all equipment in the network. Relationships are defined by each object's position in the physical view. Figure 1-13 shows the Physical view.
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Note The Physical view is the only view that displays interfaces of any kind. |
The CDM Manager view is the only view that defines the exact event propagation path. It reflects relationships between maps and displays a chassis front area representation of the contents of the chassis. This view is likely to be the one you work within most. Figure 1-14 shows the CDM Manager view.
The Generic Objects view contains all deployed generic objects, such as Regions, Networks, Sites, and Bays. Figure 1-15 shows the Generic Objects view.
Posted: Mon Jul 31 05:49:46 PDT 2000
Copyright 1989-2000©Cisco Systems Inc.