Table of Contents
Monitoring Status
The Cisco Digital Subscriber Line Manager (CDM) provides status details that can be retrieved for the following:
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Note The status of the particular object appears at the bottom of each window as PREPROVISIONED/NORMAL/ COMMISSIONED/DECOMMISSIONED or ERRORED. If the status is ERRORED, none of the values displayed can be queried. By default, the window is refreshed every 10 seconds displaying the status. |
The NI-2 Status window is used to view the system information for the selected NI-2 object. You can also Commission/Decommission an NI-2 object from this window.
To view the NI-2 Status window:
Step 1 From the pop-up menu available on a selected NI-2 object, select Status --\> NI-2.
The NI-2 Status Manager window appears (Figure 6-1).
Figure 6-1: NI-2 Status Manager Window
The System Info tab displays the following information:
- Description---Displays the textual description of the entity. This value includes the full name and version identification of the system hardware type, software operating system, and networking software.
- Services---Displays the number of potential services available.
- OID---The Object identifier displays the vendor's identification of the network management subsystem contained in the entity. This value is allocated within the SMI enterprise subtree (1.3.6.1.4.1) and provides an easy and unambiguous means for determining what kind of equipment is being managed.
- Up Time---Displays the Chassis up time since the system network management was last re-initialized. This time will be updated.
- COMMISSION---Click the Commission button or select Commission from the Actions menu to change the state of the object from Decommissioned (Not Managed) to Commissioned (Managed).
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Note If line cards are mounted and the Commission button is clicked, the status of the NI-2 card changes from the Decommissioned to Normal. |
- Decommission---Click the Decommission button or select Decommission from the Actions menu to change the status of the object from Normal to Decommissioned.
- Active management will stop
- All sub-objects will also be decommissioned
- Polling on the selected object will stop.
Subrack Discovery
The Subrack discovery process starts when a pre-provisioned CDM chassis has been created and the NI-2 commissioned.
Subrack discovery includes the following actions:
1. It discovers the line cards that are mounted or pre provisioned in the chassis
2. It creates objects that represent the cards discovered and that are going to be managed
3. It raises errors if any of the slots are in an errored state (mismatched card, invalid or failed)
4. It creates the appropriate number of port objects for each line card discovered
5. It discovers the interfaces associated with each of the ports
6. It creates corresponding objects on the system. This object represents the equipment status of the container.
The OC-3 Port Status window displays the current status of the OC-3, section, and line as well as the ATM Layer information.
To view the OC-3 port status information:
Step 1 From the pop-up menu available on a selected OC-3 object, select Status --\> OC-3 Port.
The OC-3 Port Status window appears with the Trunk Port (Figure 6-2) or Subtend Port tab highlighted. If you select OC-3 port 2, CDM displays the Subtend tab.
Figure 6-2: OC-3 Port Status Manager Window---Trunk Port Tab
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Note A green icon beside a parameter indicates there is no error associated with it. A red icon indicates an error is detected for the parameter. A grey icon indicates that evaluation of the parameter has been suppressed by a condition of higher precedence. |
The OC-3 Port Status window has two tabbed sections:
- Trunk Port/Subtend port (this changes depending on the port object selected)
- ATM (Asynchronous Transfer Mode)
This tab displays the SONET Line Current Status, SONET Section Current Status and the SONET Current Status.
This tab displays the ATM status information (Figure 6-3).
Figure 6-3: OC-3 Port Status Manager Window---ATM Tab
- Operation Status---Displays the current operational state of the interface. The possible values displayed are as follows:
- Up---Ready to pass packets
- Down---Down
- Testing---In test mode
- Unknown---Status can not be determined for some reason
- Dormant---Some component is missing
- NotPresent---Some component is missing.
- Admin Status---Displays the desired state of the interface. The possible values displayed are as follows:
- Up---Ready to pass packets
- Down---Down
- Testing---In test mode.
The DS3 Port Status window displays the current status of the DS3 port including the path, section, and line as well as the ATM Layer information.
To view the DS3 Port status information:
Step 1 From the pop-up menu available on a selected DS3 object, select Status --\> DS3 Port.
The DS3 Port Status window appears with the Trunk Port (Figure 6-4) or Subtend Port tab highlighted (selecting DS3 Port 2 displays the Subtend tab):
Figure 6-4: DS3 Port Status Manager Screen (Trunk Port Tab)
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Note A green icon beside a parameter indicates there is no error associated with it. A red icon indicates an error is detected for the parameter. A grey icon indicates that evaluation of the parameter has been suppressed by a condition of higher precedence. |
The DS3 Port Status window has two tabbed sections:
- Trunk Port/Subtend port (this changes depending on the port object selected)
- ATM (Asynchronous Transfer Mode)
This tab displays the SONET Line Current Status, SONET Section Current Status and the SONET Current Status.
This tab displays the ATM status information (Figure 6-5).
Figure 6-5: DS3 Port Status Manager Screen ---ATM Tab
This window displays the ADSL Line Status and Channel Status for both upstream (local end of the ADSL line) and downstream (remote end of the ADSL line) devices and the ATM Layer information.
To view the ADSL Line Card status information proceed as follows:
Step 1 From the pop-up menu available on a selected ADSL Line Card, select Status --\> ADSL.
Step 2 From the pop-up menu, select ADSL Line. The ADSL Line Status Manager window appears with the Line Status tab (Figure 6-6).
Figure 6-6: ADSL Line Status Manager Window---Line Status Tab
The ADSL Line Status window has three tabbed sections:
- Line Status
- Channel Status
- ATM
The Line Status tab is split into two sections:
- Downstream/Upstream
- Common
Downstream/Upstream
The upstream device (local end of the ADSL line) and downstream device (remote end of the ADSL line) section displays the following attributes:
- SNR Margin (tenth-dB)---Displays the Noise Margin as seen by this device with respect to its received signal in tenth dB.
- Attenuation (tenth-dB)---Displays the Measured difference in the total power transmitted by the peer device and the total power received by this device.
- Output Power (tenth-dB)---Displays the Measured total output power transmitted by this device. This is the measurement that was reported during the last activation sequence.
- Attainable Rate (bps)---Indicates the maximum currently attainable data rate by the device. This value will be equal or greater than the current line rate.
- DMT State---Indicates the current state of the DMT transceiver. The current state can change dynamically.
- The possible values displayed for an upstream device are:
- Other---Unknown or other state.
- PowerUp---DMT transceiver not yet configured.
- Configure---DMT transceiver being configured.
- Idle---Awaiting activation request from downstream device.
- Tone---Requesting downstream device to be silent.
- Activating---Activation in progress.
- Training---Transceiver training in progress.
- Analyzing---Channel analysis in progress.
- Exchange---Exchanging final operating parameters.
- SteadyState---Normal operating mode.
- NotResponding---DMT transceiver not responding.
- The possible values displayed for the downstream device are:
- Other---Unknown or other state.
- Activating---Activation in progress.
- Training---Transceiver training in progress.
- Analyzing---Channel analysis in progress.
- Exchange---Exchanging final operating parameters.
- Steady State---Normal operating mode.
- DMT Issue---Reports the issue number of the relevant standard to which the DMT ADSL transceiver at the upstream device is currently operating. The issue number will be fixed by the hardware and is transmitted by the upstream device in C-MSGS1 during initialization. For the downstream device, the issue number is transmitted in R-MSGS1 during initialization. The possible values displayed are:
- Other---Unknown or other
- t1413Issue1---ANSI T1.413 Issue 1
- t1413Issue2---ANSI T1.413 Issue 2
- t1413Issue3--- ANSI T1.413 Issue 3
- gdmtIssue1---ITU G.dmt Issue 1
- etsiIssue1---ETSI DMT Issue 1
One of three icons can appear beside each of the following parameters. A green icon indicates there is no error associated with it. A red icon indicates an error is detected for the parameter. A grey icon indicates that evaluation of the parameter has been suppressed by a condition of higher precedence.
- Loss of Signal Quality
- Loss of Frame
- Loss of Link
- Loss of Power
- Loss of Signal
- Initialization Failure
Common
The Common attribute values are displayed in this section as follows:
- Embedded Operations Channel Mode---Reports whether the embedded operations channel (eoc) can support autonomous data streaming mode or only transaction mode. After initialization, unknown is reported until sufficient autonomous eoc messages have been transmitted to determine the true capability of both upstream and downstream channels. The possible values displayed are as follows:
- Unknown---Embedded operations channel mode is unknown yet
- Transaction---Embedded operations channel only operates in original transaction mode
- Streaming---Embedded operations channel supports autonomous data streaming mode and original transaction mode
- Trellis Encoding ---This identifies if Trellis coding is used on the DMT Line. Use of trellis coding is determined at line initialization with C-MSGS1 and R-MSGS1 exchanges and will not change until the line is re-initialized. The possible values displayed are as follows:
- DMT Line Overhead Framing---This object represents the negotiated overhead framing structure being used by the upstream and downstream devices.
The Channel Status tab displays the ADSL Channel Status of the selected object (Figure 6-7).
Figure 6-7: ADSL Line Status Manager Window---Channel Status Tab
Downstream/Upstream
The Downstream/Upstream section of the Channel Status tab displays the following attributes:
- Current Transmission Rate (bps)---Displays the actual transmit rate on this channel.
- Interleave 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.
- Current FEC Size (bytes)---The possible values displayed are as follows:
- Upstream---Displays the number of forward error correction (FEC) redundancy bytes the upstream device appends to downstream messages on the corresponding channel
- Downstream---Displays the number of FEC redundancy bytes the downstream device appends to upstream messages on the corresponding channel
- Current Codeword Size (symbols)---This field specifies the actual number of symbols per codeword being used by the upstream device for downstream messages. The upstream and downstream devices negotiate this value during the training sequence. The possible values displayed are as follows:
- Upstream---Displays the actual number of symbols per codeword being used by the upstream device for downstream messages
- Downstream---Displays the actual number of symbols per codeword being used by the downstream device for upstream messages
The ATM tab displays ADSL ATM Layer information for the object selected (Figure 6-8).
Figure 6-8: ADSL Line Status Manager Window---ATM Tab
Posted: Wed May 17 12:02:17 PDT 2000
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