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This chapter describes how to add subscribers and apply profiles to a subscriber using the Cisco Digital Subscriber Line Manager (CDM).
Profiles enable you to apply a set of existing parameters to several objects of the same type, which eliminates the need to enter the same data many times. After you have created a profile, you can apply it to other ADSL lines, as applicable.
The CDM enables you to perform several types of configurations:
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Note ATM QoS Profiles are also known as ATM Traffic Descriptors. |
Adding a subscriber involves creating and applying a profile to a subscriber line; creating and applying a permanent virtual circuit (PVC) or soft permanent virtual circuit (SPVC); then configuring two virtual channel links (VCLs), which are endpoints of the connection (one outgoing port and one incoming port). A "subscriber" in CDM is made up of a subscriber line, which has a PVC (or SPVC) connection with two VCLs at each end.
You can create and apply profiles and connections in the Map Viewer application. Once you are in the Map Viewer application, within the CDM Manager view, you can right-click on a chassis object to display the relevant menus. When you are ready to add a subscriber, perform the following steps, in the order described:
Step 2 Create a profile.
Step 3 Apply the profile to the subscriber line.
Step 4 Create a PVC or SPVC object.
Step 5 Apply a QoS profile to the PVC or SPVC.
Step 6 Create the PVC or SPVC connection to the device.
Step 7 (Optional) Start performance polling on the connection.
If connections and profiles are already configured on a device, and you want to put those connections or profiles into CDM, you can upload them. You can upload the following connections and profiles:
Before you can upload any connections or profiles, make sure your Telnet passwords are configured in CDM.
To check Telnet passwords:
The Management Information window appears (Figure 4-1).
Step 2 Click the IOS Security tab (Figure 4-1).
Step 3 Enter your User Name, Exec Password, and Login Password.
Step 4 Click the Save Locally button to save your passwords locally on the device or chassis.
When you upload existing ATM connections and ATM QoS profiles, any existing ATM connections are discovered and placed into the Normal state so that management of these connections begins automatically. After these connections and profiles are uploaded, you can view and adjust them in CDM.
The ATM Connection Upload window appears (Figure 4-2).
Step 2 The chassis you selected appears at left. Click Upload. All ATM connections and ATM QoS profiles currently configured on the selected device are uploaded into CDM.
Uploaded ATM connections and ATM QoS profiles are named according to the following formats:
ATM connections---PVC_(index of incoming port.VPI value.VCI value.index of outgoing port.
VPI value.VCI value)
ATM QoS Profiles---QoSProfile_(assigned number)
When you upload existing ADSL and DMT profiles, any existing ADSL and DMT profiles are created in CDM. After these profiles are uploaded, you can view and modify them in CDM.
The ADSL or DMT Upload Profile window appears (Figure 4-3).
Step 2 The chassis you selected appears at left. Click Upload, and all DMT (or ADSL, depending upon which window you are in) profiles currently configured on the selected device are uploaded into CDM.
Uploaded ADSL and DMT profiles are named according to the following formats:
ADSL profiles---ADSLManager_(assigned number)
DMT profiles---DMTManager_(assigned number)
You can create DMT profiles to apply to DMT interfaces. One DMT profile can be applied to multiple DMT interfaces on a card.
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Note After you create a DMT profile, you can edit that profile only if it is not being used. If any connections are using that profile, you are not allowed to alter the profile. You can view and identify the connections that are using a certain profile by running a Cisco EMF query against the profile name (refer to the Cisco Element Management Framework User Guide for details). |
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Note DMT profiles are saved and stored in CDM. |
To begin creating DMT profiles, open the DMT Profiles window.
The DMT Interface Profile window appears (Figure 4-4).
The DMT Interface Profile window contains one tab, Profile. The Profile tab contains four areas: Profile Information, Common, Downstream/Upstream, and Actions.
Step 2 Create a profile.
You can create a new profile by typing information in the required fields, or by copying the parameters from an existing profile.
DMT Interface Profile Field Definitions---Profile Information Area
The Profile Information area contains the following fields:
Profile Type---Enter the type of profile you are creating (in this instance, a DMT interface profile.)
Profile Description---Enter a description for this profile. Use the horizontal and vertical scroll tools to view text not displayed in the window.
DMT Interface Profile Field Definitions---Common Area
The Common area contains the following fields:
Bit Swap---Indicates whether or not the ATU-C performs bit swapping. Bit swapping can maximize error performance by attempting to maintain an acceptable margin for each bin by equalizing the margin across all bins through bit reallocation.
Bit Swap Margin From---The ATU-C marks a bin as a "from" bin if the bin's margin falls below a specified target value and the difference between the margin and target exceeds a specified threshold value. Valid values are in the range from 1 through 9.
If this value is too low, the ATU-C may toggle the bit allocation on bins frequently. If impulse noise is present, the frequent toggling of bit allocation can cause errors. If this value is too high, the ATU-C may not identify an adequate number of bins from which it can swap bits, which decreases the ATU-C's ability to equalize the margin across all bins.
Bit Swap Margin To---The ATU-C marks a bin as a "to" bin if the bin's margin exceeds a specified target value and the difference between the margin and target exceeds a specified threshold value. Valid values are in the range 1 through 9.
If this value is too low, the ATU-C may toggle bit allocation on bins frequently. If impulse noise is present, the frequent toggling of bit allocation can cause errors. If this value is too high, the ATU-C may not identify an adequate number of bins to which it can swap bits, which decreases the ATU-C's ability to equalize the margin across all bins.
Training Mode---Displays the mode employed by the downstream device and upstream device when the devices are training against each other. One of two training modes can be employed. Standard is the default training mode for ADSL modems.
Trellis Coding---Indicates whether or not trellis coding is used on the DMT line.
Operating Mode---Displays the line-operating mode being employed by the ADSL line. An ADSL line uses of one of two operating modes.
Overhead Framing---Displays the negotiated overhead framing structure being used by the downstream device and upstream device. Possible framing structures are outlined as follows:
DMT Interface Profile Field Definitions---Downstream/Upstream Area
The Downstream/Upstream area contains the following fields:
Check Bytes---Specifies the initial number of FEC redundancy bytes transmitted by the downstream device frames over the interleaved channel during the training sequence. The downstream device can fall back from this value depending on the aggregate data rate achieved during training. The value of this object must be an integral multiple of the value displayed in the Codeword Size.
Codeword Size---Displays the number of symbols per codeword being used by the downstream for downstream messages on an interleaved channel during the training sequence. The downstream can fall back from this value, based on the aggregate data rate achieved during training.
To delete an existing DMT profile, right-click the profile name you want to delete in the list box and select Deployment > Delete Objects. The delete wizard appears. Click Finish to delete the selected object. A prompt confirms successful deletion.
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Note You cannot delete a profile that is currently in use. If you want to view the connections that are using a specific profile, you can run a Cisco EMF query against the profile name (refer to the Cisco Element Management Framework User Guide for details). |
QoS Profile windows allow you to create and save ATM QoS profiles (also known as ATM traffic descriptors). CDM stores ATM QoS profiles and creates the parameters when it creates the connection (PVC or SPVC) on the device.
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Note After you create an ATM QoS profile, you can only edit that profile if the profile is not being used. If any connections are using that profile, you are not allowed to alter the profile. You can view which specific connections are using a certain profile by running a Cisco EMF query against the profile name (refer to the Cisco Element Management Framework User Guide for details.) |
To open the ATM QoS Profile Configuration window, proceed as follows:
The ATM QoS Profiles Configuration window appears (Figure 4-5).
The ATM QoS Profiles window contains two tabs: Profile and RxTx Parameters. The Profile tab appears by default when you open the ATM QoS Profiles window.
Step 2 Create a profile.
You can create a new profile by typing information in the required fields, or copy the parameters from an existing profile.
ATM QoS Profiles Field Definitions---Profile Tab
The Profile tab contains the following fields:
Profile Type---Enter the type of profile you are creating (in this instance, an ATM QoS profile.)
Profile Description---Enter a description for this profile. Use the horizontal and vertical scroll tools to view text not displayed in the window.
The RxTx Parameters tab contains the receive and transmit parameters for the selected ATM QoS profile (Figure 4-6).
ATM QoS Profiles Field Definitions---RxTx Parameters Tab
The RxTx Parameters tab contains two areas: Receive and Transmit Parameters. Both areas contain the same fields, as follows:
QoS Category---Indicates the current QoS category of the selected profile.
CLP (cell loss priority)---Indicates the value in the ATM cell header that determines the probability of a cell being dropped if the network becomes congested. Cells that have 0 (zero) in the CLP field have insured priority and are unlikely to be dropped. Cells with 1 in the CLP field have best-effort priority and might be dropped during periods of congestion so that resources are free to handle insured traffic.
SCR (sustainable cell rate)---Indicates the maximum sustained-cell-rate (scr) traffic parameter that is allowed for connections.
PCR (peak cell rate)---Indicates the maximum transmission rate of cells.
MCR (minimum cell rate)---Indicates the lowest acceptable transmission rate (specified in cells per second) for connections.
MBCS (maximum burst cell size)---Indicates the maximum burst cell size permitted for cells received for connections on this interface.
CDVT (cell delay variation tolerance)---Indicates the cell delay variation estimated to be experienced by cells for connections received on this interface.
To delete an existing ATM QoS Profile, right-click the profile name you want to delete in the list box and select Deployment > Delete Objects. The delete wizard appears. Click Finish to delete the selected object. A message appears to confirm successful deletion.
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Note You cannot delete a profile that is currently in use. To view the connections that use a specific profile, you can run a Cisco EMF query against the profile name (refer to the Cisco Element Management Framework User Guide for details.) |
You can create ADSL profiles to apply to DMT interfaces. One ADSL profile can be applied to multiple DMT interfaces on a card.
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Note After you create an ADSL profile, you can edit that profile only if it is not being used. If any connections are using that profile, you are not allowed to alter the profile. You can view the connections that are using a certain profile by running a Cisco EMF query against the profile name (refer to the Cisco Element Management Framework User Guide for details). |
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Note ADSL Profiles are saved and stored in CDM. |
To view the ADSL Profiles window:
The ADSL Interface Profile window appears (Figure 4-7).
The ADSL Interface Profile window contains one tab, Profile.
Step 2 Create a profile.
You can create a new profile by typing information in the required fields, or copy the parameters from an existing profile.
ADSL Profile Field Definitions---ADSL Parameters Area
The ADSL Parameters area includes the following parameters:
Target Signal/Noise Margin (tenth dB)---This is the Noise Margin the modem must achieve with a BER of 10-7 or better to successfully complete initialization.
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Note Configured allocation ratios of excess transmit bandwidth between fast and interleaved channels only apply when two-channel mode and RADSL are supported. |
Interleave Channel Delay (ms)---Interleave delay for this channel. Interleave delay applies only to the interleave channel and defines the mapping (relative spacing) between subsequent input bytes at the interleaver input and their placement in the bit stream at the interleaver output.
Interleave Minimum Transmit Rate (bps)---Configured minimum transmit rate for "Interleave" channels, in bps.
Interleave Maximum Transmit Rate (bps)---Configured maximum transmit rate for "Interleave" channels, in bps.
To delete an existing ADSL profile, in the list box, right-click the profile name you want to delete and select Deployment > Delete Objects. The delete wizard appears. Click Finish to delete the selected object. A prompt confirms successful deletion.
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Note You cannot delete a profile that is currently in use. If you want to view the connections that are using a specific profile, you can run a Cisco EMF query against the profile name (refer to the Cisco Element Management Framework User Guide for details.) |
After you create a DMT profile, you can apply that profile to a DMT interface. One DMT profile can be applied to multiple DMT interfaces on a card.
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Note DMT profiles are saved and stored in CDM. |
To view the DMT Interface Configuration window:
The DMT Interface Configuration window appears (Figure 4-8).
Step 2 From the list boxes at left, select the chassis, card, and DMT interface to which you want to apply the DMT Profile. Any current profiles applied to the selected DMT interface appear in the tab at right.
Step 3 From the toolbar, select Edit >Apply Profile. A list of DMT profiles appear.
Step 4 Click the named DMT profile you want to apply. After you apply the profile, a status line appears briefly in the lower left corner of the window, which indicates whether or not the profile is applied successfully. The information for the selected profile appears in the tab at right.
After you create an ADSL profile, you can apply that profile to an ADSL (DMT) interface. One ADSL Profile can be applied to multiple ADSL (DMT) interfaces on a card.
Four "DMT" interfaces are created automatically when you deploy a DMT line card. These "DMT" interfaces are actually ATM over ADSL over DMT interfaces. This means that three technologies are supported by one interface.
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Note ADSL profiles are saved and stored in CDM. |
To view the ADSL Interface Configuration window:
The ADSL Interface Configuration window appears (Figure 4-9).
Step 2 From the list box at left, select the chassis, card, and ADSL (DMT) interface to which you want to apply the ADSL profile. Any current ADSL profiles applied to the selected DMT interface appear in the tab at right.
Step 3 From the toolbar, select Edit > Apply Profile. A list of ADSL profiles appear.
Step 4 Click the named ADSL profile you want to apply. After you apply the profile, a status line appears briefly in the lower left corner of the window, which indicates whether or not the profile is applied successfully. The information for the selected new profile appears in the tab at right.
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Note The ADSL Interface Configuration tab contains three areas, as follows: Profile Details, ADSL Parameters, and Actions. For detailed information about these field parameters, refer to the "Creating an ADSL Profile" section . |
A PVC is a permanent logical connection that must be configured from source to destination. PVCs save bandwidth associated with establishing a circuit when a virtual circuit must exist all the time. You can deploy a PVC or SPVC (which creates the PVC/SPVC within Cisco EMF), apply an ATM traffic descriptor to the PVC or SPVC, then create the connection on the device. Deploying and creating a PVC creates a cross-connection within one device; deploying and creating an SPVC creates a connection between the incoming port on one device and the outgoing port on another device.
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Note After you create a PVC or an SPVC, the circuit can be viewed only within the Component Managed view. The circuit does not appear in the CDM Manager view. |
To view the Deployment Wizard window:
The Deployment Wizard---Object Parameters window appears (Figure 4-10).
Step 2 Enter the number of PVCs or SPVCs you wish to create. Click Forward.
The Deployment Wizard---Object Parameters window appears (Figure 4-11).
Step 3 Enter the PVC name. Ensure this name is unique. Enter your subscriber ID if desired, or you can leave the value Undefined. Click Forward.
The Deployment Wizard---Views window appears (Figure 4-12).
Step 4 Click the first Select button to choose an incoming port for the PVC or SPVC connection.
For a PVC or SPVC, select a DMT interface for the incoming port.
Your selection populates both fields. However, you must use a different selection for your outgoing port.
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Note If you are creating an SPVC with a non-CDM endpoint, you must make only one selection on this window for the incoming port. An extra window appears after this window that prompts you to enter an NSAP (Network Service Access Point) address for the outgoing port. |
Step 5 Click the second Select button to choose an outgoing port.
If you are creating a PVC, select an OC-3 or DS3 interface on the NI-2 management card for the outgoing port. If you are creating an SPVC, select the destination ATM end point of the connection.
The Deployment Wizard---Summary window appears (Figure 4-13).
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Note If you do not select the correct ports in this window, your PVC or SPVC deployment fails. |
Step 6 Click Finish to complete the deployment.
This window (Figure 4-13) summarizes your deployment. When you create a PVC or SPVC, two virtual channel links (VCLs) are also created, representing the two incoming and outgoing endpoints.
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Note If you are creating an SPVC with a non-CDM endpoint, only one Virtual Channel Link (VCL) is created. |
You can configure and view status and performance for these VCLs (refer to the "Managing VCLs" section for details.)
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Note If you deploy a PVC or SPVC, this does not create the connection on the device. |
After you create a PVC or SPVC, you can apply the ATM QoS Profile to the PVC or SPVC.
To view the ATM Connection QoS Configuration window:
The ATM Connection QoS Configuration window appears (Figure 4-14).
Step 2 From the list box at left, select the related chassis, card, interface, and connection (PVC or SPVC). This connection should be the PVC or SPVC to which you want to apply the ATM QoS profile. Any current ATM QoS profiles applied to the selected PVC or SPVC appear in the tabs at right.
Step 3 From the toolbar, select the option Edit > Apply Profile. A list of ATM QoS profiles appears.
Step 4 Click the named ATM QoS profile you want to apply. After you apply the profile, a status line appears briefly in the lower left corner of the window, which indicates whether or not the profile is applied successfully. The information for the selected new profile appears in the tabs at right.
After you create a PVC or SPVC and apply an ATM QoS profile to the PVC or SPVC, you must create the PVC or SPVC (connection) on the device. This activates the connection.
The ATM Connections Management window appears (Figure 4-15).
Step 2 Select the related chassis, card, interface, and connection you want to create. Within the Configuration tab, type the desired information in the Subscriber Info, Source, and Destination areas.
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Note If you are creating an SPVC, the NSAP Address for the outgoing port is also displayed. |
Step 3 Click the Connect button in the Action area. You are prompted to confirm this action. The Connect button creates the subscriber's connection on the device. The connection object changes to the Normal state. If you want to disconnect the subscriber's connection, click the Disconnect button.
In the second Actions area, you can click the Decommission button, which stops management of the connection. When you decommission a connection, alarms are no longer reported against it, and performance polling is no longer performed on the connection.
Subscriber Info
The Subscriber Info area contains only one parameter: Subscriber ID. Type your subscriber ID.
Source
The Source area has the following parameters:
Source VPI---VPI value of the source VCL.
Source VCI---VCI value of the source VCL.
Auto Allocation---The source VPI and source VCI values are provided automatically if you select the Auto Allocation button on each side (Source and Destination.)
The Source Port button displays the ATM Configuration window for the selected PVC or SPVC. The Source VCL button displays the VCL Configuration window for the selected PVC or SPVC. These buttons allow you to view and perform more detailed configuration on both VCLs.
Destination
The Destination area contains the following parameters:
Destination VPI---VPI value of the destination VCL.
Destination VCI---VCI value of the destination VCL.
Auto Allocation---The source VPI and source VCI values are provided automatically if you select the Auto Allocation button on each side (Source and Destination.)
NSAP Address---(network service access point) The ATM address you must provide if you are configuring an SPVC. When you have subtended chassis, you must provide the NSAP address for the destination ATM end point of the connection. (This field is only applicable to SPVCs, not PVCs.)
The Destination Port button displays the ATM Configuration window for the selected PVC or SPVC. The Destination VCL button displays the VCL Configuration window for the selected PVC or SPVC. These buttons allow you to view and perform more detailed configuration on both VCLs.
When you create an ATM connection (PVC or SPVC), two Virtual Channel Links (VCLs) are created automatically. One VCL represents the source or incoming port, and the other VCL represents the destination or outgoing port. You can view or modify the configuration, performance, and status of VCLs through the VCL Management windows.
To open the VCL Management window:
The ATM VCL Configuration window appears (Figure 4-16).
Step 2 Select a VCL from the list box at left. The configuration information for the selected VCL appears in the tab at right. You can view or modify this information.
The Configuration tab contains four areas: VCL Parameters, Traffic Information, Encapsulation Parameters, and OAM Information.
VCL Parameters
The VCL Parameters area contains the following parameters:
VPI---Displays the current VPI values for either the source VCL or the destination VCL, depending upon the type of VCL selected.
VCI---Displays the current VCI values for either the source VCL or the destination VCL, depending upon the type of VCL selected.
Traffic Information
The Traffic Information area contains the following parameters:
EPD Mode---Indicates whether the Early Packet Discard operation is enabled or disabled at this specific connection.
UPC Mode---Displays the details of the Usage Parameter Control Mode, the operations for which are pass, tag, drop, or local shaping on the established connection.
OAM Information
The OAM Information area contains the following parameters:
AIS Mode---Indicates whether Enable Alarm Indication Signal OAM cell generation is enabled or disabled if the interface fails on a cross connect virtual channel.
RDI Mode---Displays details on the Enable Remote Defect Indication OAM cell generation. In ATM, if the physical layer detects loss of signal or cell synchronization, RDI cells report a VPC/VCC failure. RDI cells are sent upstream by a VPC/VCC endpoint to notify the source VPC/VCC end point of the downstream failure.
Encapsulation Parameters
The Encapsulation Parameters area contains the following parameters:
Encapsulation Flag---Allows you to specify the encapsulation type for terminating VC. The options available are: other, aal5Snap, aal5Nlpid, aal5FrNlpid, aal5Mux, aal34Smds, aalQsAal, aal5Ilmi, aal5Lane, and aal5Pnni.
Encapsulation Protocol---Allows you to specify the Protocol for terminating VC if Encapsulation Flag is aal5Mux. The options available are: other, ip, xns, appletalk, clns, decnet, novell, apollo, and vines.
AAL User Type---Allows you to specify the user types if the Encapsulation flag is aal5Lane. The options available are:
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Note The Layer 3 Configuration tab in the ATM VCL Configuration window does not apply to CDM 3.0 and is inoperable. |
Within the VCL Performance window, you can start performance logging for a selected connection to gather performance data for that connection, which can be viewed in either the Performance menus or Performance Manager.
To begin performance logging on a VCL:
The ATM VCL Performance window appears (Figure 4-17).
Step 2 From the list box, select a VCL. Click the Start button to begin performance polling on the selected VCL.
The Performance tab contains three areas: Bandwidth Utilization, VC Statistics, and Performance Monitoring.
Bandwidth Utilization
The Bandwidth Utilization area contains the following parameters:
Receive---Percentage of available bandwidth used when receiving information on the connection.
Transmit---Percentage of available bandwidth used when transmitting information on the connection.
VC Statistics
The VC Statistics area contains the following parameters:
In Cells---Total number of cells received on this VCL.
Out Cells---Total number of cells transmitted on this VCL.
UPC Violations---Total number UPC Violations on this VCL.
Packets In---Total number of packets received on this VCL.
Cell Drops---Total number of cells dropped on this VCL.
Packet Drops---Total number of packets dropped on this VCL.
Performance Monitoring
The Performance Monitoring area contains one button, Start. Click the Start button to begin Performance Polling on the selected VCL. Performance polling collects and displays data on the object, either in the Performance windows or the Performance Manager (refer to "Viewing Current Performance Data," and "Viewing Historical Performance Data," for further details.
To view VCL status:
The ATM VCL Status window appears (Figure 4-18).
Step 2 From the list box at left, select a VCL. The status information for the selected VCL appears in the tab at right.
The Status tab contains four areas: VCL Status, Characteristics, Soft PVC Details, and OAM Details.
VCL Status
The VCL Status area contains the following parameters:
Operational State---Status of the VCL connection.
Last Change---Time elapsed since the last status change.
Install Time---Time elapsed since the last installation.
Characteristics
The Characteristics area contains the following parameters:
Span Type---VCL span type.
Connection Type---VC configuration type.
Cast Type---VC cast type.
Soft PVC Details
The Soft PVC Details area contains the following parameters:
Location---Indicates the calling or called side of a soft PVC.
Number of Attempts---Indicates the number of retries made to install this soft PVC.
Last Release Cause---Indicates the cause of the last connection release.
OAM Details
The OAM Details area contains the following parameters:
Segment Loopback---Indicates whether the segment loopback is enabled or disable on the virtual channel selected.
Loopback Interval---Indicates the frequency with which the OAM loopback cells are generated.
Posted: Sat Jul 29 07:09:53 PDT 2000
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