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Cisco 6160
8-Port IDSL ITU-C Line Card Installation and Configuration

Cisco 6160
8-Port IDSL ITU-C Line Card Installation and Configuration

This publication contains instructions for installing and configuring the Cisco 8-port IDSL ITU-C line card on a Cisco 6160 Digital Subscriber Line Access Multiplexer (DSLAM). If you are not familiar with the Cisco 6160 DSLAM, refer to the documentation listed in the "Prerequisites and Preparation" section.

Contents

The following sections are included in this configuration guide:

Product Description

The 8-port IDSL ITU-C line card supports the following features:


Figure 1: 8-Port IDSL ITU-C Line Card


Prerequisites and Preparation

Before you perform any of the procedures in this guide, we recommend that you do the following:

Safety Guidelines

Before you begin the line card installation procedure, review the safety guidelines in this section to avoid injuring yourself or damaging the equipment. Before you install, configure, or perform maintenance on the IDSL line card, you should also review the safety warnings listed in the Cisco 6160 Hardware Installation and Troubleshooting Guide.

Safety Warnings

Safety warnings appear throughout this publication in procedures that, if performed incorrectly, may harm you. A warning symbol precedes each warning statement. The following warning is an example of a safety warning. It identifies the warning symbol and associates it with a bodily injury hazard.

Warning This warning symbol means danger. You are in a situation that could cause bodily injury. Before you work on any equipment, be aware of the hazards involved with electrical circuitry and be familiar with standard practices for preventing accidents. To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device.
Note   For a translation of the safety warning, see the Cisco 6160 Hardware Installation and Troubleshooting Guide.

Cautions

Cautions appear throughout this publication in procedures that, if performed incorrectly, could result in damaging the equipment or loosing data.

Caution Means reader be careful. You are capable of doing something that might result in equipment damage or loss of data.

Software Requirements

The 8-port IDSL ITU-C line card is compatible with any Cisco 6160 DSLAM operating with Cisco IOS Release 12.1(2)DA or later. Use the show version command to display the system software version that is currently loaded and running.

If the system software is a version earlier than Cisco IOS Release 12.1(2)DA, check the contents of Flash memory to determine if the required software images are available on your system. The show flash command displays a list of all files stored in Flash memory. If the correct software version is not installed, contact Cisco Customer Service (see the "Cisco Connection Online" section).

Installation Guidelines

The Cisco 6160 system is hot-swappable, which means you can remove and replace line cards while the system is operating. This feature allows you to add, remove, or replace line cards without affecting traffic on any of the other line cards.

You configure the 8-port IDSL ITU-C line card using the slot <slot> ITUC-1-8IDSL command. See the Configuration Guide for Cisco DSLAMs with NI-2 for additional information about the slot command. For information about configuring the Cisco 6160 for IDSL applications, refer to the "Configuring the 8-Port IDSL ITU-C Line Card" section.

Caution To avoid erroneous failure messages, remove or insert only one line card at a time.
Caution To prevent electrostatic discharge (ESD) damage, always use an antistatic wrist strap, and handle line cards by the faceplate or the card carrier edges only. Avoid touching the line card printed circuit board, components, or any connector pins.

Required Tools and Equipment

You need the following tools and equipment to install the 8-port IDSL ITU-C line card:

Installing the Line Card

Use this procedure to install the 8-port IDSL ITU-C line card into any of the line card slots available in the Cisco 6160 chassis.

Note   If you are replacing a 8-port IDSL ITU-C line card, see the "Removing a Line Card" section before you begin this procedure.
Step 1   Attach an antistatic wrist strap to your wrist and to the ESD socket on the chassis, or to a bare metal surface on the chassis or frame (Figure 2).


Figure 2: ESD Chassis Connection


Step 2   Carefully align the upper and lower edges of the line card with the upper and lower guides in the chassis, and slide the line card into the slot until you can feel it begin to seat in the backplane connectors (Figure 3). Ensure that:


Figure 3: Inserting the Line Card


Step 3   Press the ejector lever down to seat the line card in the backplane, and rotate its locking tab to the "locked" position (Figure 4).


Figure 4: Seating the Line Card


Step 4   Refer to the "Configuring the 8-Port IDSL ITU-C Line Card" section for information about configuring the line card.

Removing a Line Card

Use the following procedure to remove an 8-port IDSL ITU-C line card from the chassis:

Step 1   Attach an antistatic wrist strap to your wrist and to the ESD socket on the chassis, or to a bare metal surface on the chassis or frame (Figure 5).


Figure 5: ESD Chassis Connection


Step 2   Rotate the line card locking tab to the "unlocked" position, and lift the ejector lever to unseat the line card from the backplane (Figure 6).


Figure 6: Unseating the Line Card


Step 3   Slide the line card out of the slot and place it on an antistatic surface or in an antistatic bag (Figure 7).


Figure 7: Removing the Line Card


Step 4   See the "Installing the Line Card" section for instructions to install a new line card.

Warning Do not operate the system unless all slots contain a line card or a blank faceplate. Blank faceplates are necessary in empty slots to prevent exposure to hazardous voltages, to reduce electromagnetic interference (EMI) that may disrupt other equipment, and to direct the flow of cooling air through the chassis.

Troubleshooting the Installation

Refer to Figure 8 and Table 1 for descriptions of the LEDs on the line card. Refer to Table 2 for possible installation problems and the corrective action to take.


Figure 8: 8-Port IDSL ITU-C Line Card Front Panel



Table 1: 8-Port Line Card LED Descriptions
LED Status Description

Status

Green

Operational code is downloaded and the line card is operating properly.

Flashing green (fast)

The line card is downloading operational code.

Flashing green (slow)

The line card is up and waiting to download operational code.

Flashing red

The line card failed the POST.

Off

The line card is not operating properly.

Active

Green

The line card is communicating with the NI-2 module.

Off

No communication is taking place between the line card and the NI-2 module.

ITU-C1 through ITU-C8

Green

The loop is up.

Off

The loop is down or has stopped responding.


Table 2: 8-Port Line Card Installation Troubleshooting
Symptom Possible Cause Corrective Action

The status LED remains off, or none of the LEDs light when the line card is inserted

The line card is not properly seated.

Reinsert the line card. Be sure the ejector levers are fully closed and that the locking tab is in the "locked" position.

The status LED (red) and all other LEDs (green) remain on for more than 20 seconds during power on

Bad line card slot or backplane connector.

Bad line card.

Remove the line card and install it in another chassis slot.

Replace the line card.

Configuring the 8-Port IDSL ITU-C Line Card

After the 8-port IDSL ITU-C line card is successfully installed you can configure the card for your network use. This section describes the steps to configure the Cisco 6160 for IDSL applications.

The line card can terminate all standard bit rates from 56 to 144Kbit/sec, and supports the following Frame Relay or PPP encapsulations across multiple or all IDSL ports in the Cisco 6160 chassis:

This section contains examples describing of typical configurations on the 8-port IDSL ITU-C line card. For additional information about configuration commands, refer to the Configuration Guide for Cisco DSLAMs with NI-2 and the Command Reference for Cisco DSLAMs with NI-2. You can also find information in the Cisco IOS software documentation set that corresponds with the software release installed on your Cisco 6160 DSLAM hardware.

Example 1: Configuring a PPP IDSL Link Using PVCs

There are three basic steps to configure a PPP IDSL link using PVCs:

    1. Create a PPP profile

    2. Create an ATM traffic descriptor row

    3. Configure an IDSL interface

Creating a PPP Profile

The profile specifies the bit rate and the encapsulation you want to configure on the IDSL ports. You can create a new profile or use the default profile (named "default"). This example creates a new profile.

Step 1   Enter configuration mode from the terminal console:

6160# config terminal
Enter configuration commands, one per line.  End with CNTL/Z.
6160(config)#

Step 2   Enter the profile name:

6160(config)# dsl-profile ppp144

Step 3   Set the encapsulation (this example runs PPP over HDLC on the IDSL link using LLC PPPoATM as the ATM transport):

6160(cfg-dsl-profile)# idsl encapsulation llc-ppp
Note   You can also use PPPoATM MUX or Cisco PPPoATM ATM transport encapsulations.

Step 4   Set the bit rate:

6160(cfg-dsl-profile)# idsl bitrate 144

Step 5   Exit configuration mode:

6160(cfg-dsl-profile)# end

Use the show dsl profile command to display the contents of the newly created or modified profile:

6160# show dsl profile ppp144
 
dsl profile ppp144:
      Alarms Enabled: NO
      ATM Payload Scrambling: Enabled
 
 
 DMT profile parameters
      Maximum Bitrates:
Interleave Path:   downstream:   640 kb/s, upstream: 128 kb/s
      Minimum Bitrates:
         Interleave Path:   downstream:     0 kb/s,   upstream: 0 kb/s
      Margin:               downstream:     3 dB,     upstream: 3 dB
      Interleaving Delay:   downstream: 16000 usecs,  upstream: 16000 usecs
      Check Bytes (FEC):
         Interleave Path:   downstream:    16,        upstream:    16
      R-S Codeword Size:    downstream:  auto,        upstream:  auto
      Trellis Coding:         Disabled
      Overhead Framing:       Mode 1
      Operating Mode:         Automatic
      Training Mode:          Standard
 
 SDSL profile parameters
      Maximum Bitrates: 784 kbps
      Transmit Power:   0 dB
 
 CAP profile parameters
      Maximum Bitrates:     downstream:   640 kb/s,   upstream:    91 kb/s
      Minimum Bitrates:     downstream:     0 kb/s,   upstream:     0 kb/s
      Margin:               downstream:     3 dB,     upstream:     6 dB
      PSDM:                 downstream:   -37 dBm/Hz, upstream:   -38 dBm/Hz
      Interleaving Delay:     Short
      136K Baud DS Rates:     Enabled
      68K Baud US Rates:      Disabled
      17K Baud US Rates:      Disabled
      CPE Signature:          0    
 
 IDSL profile parameters
      Bitrate:              144 kbit/sec
      Encapsulation:        llc-ppp
      Frame Relay parameters:
         UPC intent:           pass
         Bc default:           32768 bytes
         LMI type:             cisco
         lmi-n392dce:          2 events
         lmi-n393dce:          2 events
         lmi-t392dce:          15 seconds
Note   The profile can contain parameters for other types of DSL interfaces, but the IDSL-specific content is listed at the end of the profile.

Creating an ATM Traffic Descriptor Row

The second step in configuring the PPP IDSL link is to specify the ATM connection traffic parameters. To do this, create a traffic descriptor row in the ATM connection traffic table.

Step 1   Enter configuration mode from the terminal console:

6160# config terminal
Enter configuration commands, one per line.  End with CNTL/Z.
6160(config)#

Step 2   Create a row in the ATM connection traffic table:

6160(config)# atm connection-traffic-table-row index 144 vbr-nrt 
pcr 238 scr 238
Note   The peak cell rate/sustainable cell rate (PCR/SCR) should always be set to the maximum to guarantee proper ATM bandwidth allocation through the Cisco 6160 and through the ATM network (Table 3).


Table 3: ATM Bandwidth Maximums
IDSL Bit Rate (Kbit/sec) Max ATM PCR/SCR (Kbit/sec)

56

93

64

106

128

212

144

238

Step 3   Exit configuration mode:

6160(config)# end

Use the show atm connection-traffic-table command to display the contents of the ATM connection traffic table row:

6160# show atm connection-traffic-table
Row      Service-category    pcr        scr/mcr       mbs         cdvt
1            ubr          7113539        none                     none
2            cbr              424                                 none
3            vbr-rt           424         424          50         none
4            vbr-nrt          424         424          50         none
5            abr              424           0                     none
6            ubr              424        none                     none
100          vbr-nrt          106        81-0          50         none
144          vbr-nrt          238         238        none         none
2147483640   vbr-nrt           81        81-0          50         none
2147483642   vbr-nrt           81        81-0          50         none
2147483643   vbr-nrt           81        81-0          50         none
2147483644   vbr-nrt          128       128-0        1024         none

Configuring a PPP IDSL Interface

The third step in configuring the PPP link is to configure a PPP IDSL interface.

Step 1   Enter configuration mode from the terminal console:

6160# config terminal
Enter configuration commands, one per line.  End with CNTL/Z.
6160(config)#

Step 2   Select the interface that you want to configure:

6160(config)# interface idsl 15/1

Step 3   Apply the profile (this example uses the profile created in the "Creating a PPP Profile" section):

6160(config)# dsl profile ppp144

Step 4   Create the ATM PVC linking this IDSL interface to the aggregator (this example uses the traffic descriptor row created in "Creating an ATM Traffic Descriptor Row" section):

6160(config)# ppp pvc interface atm 0/1 3 277 rx-cttr 144 tx-cttr 144
Note   This example assumes that the aggregator is attached directly or indirectly, through trunk port atm 0/1 on PVC 3/277.

Step 5   Set the circuit identifier (this step is optional):

6160(config)# dsl circuit bb-123

Step 6   Set the subscriber name (this step is optional):

6160(config)# dsl subscriber Ned_Network

Step 7   Repeat steps 2 through 6 for any additional IDSL interfaces you want to configure.

Step 8   Exit configuration mode:

6160(config)# end

Use the show running-config [interface IDSL slot/port] command to verify the configuration of the IDSL interface:

6160# show running-config interface IDSL 15/1
Building configuration...
 
Current configuration:
!
interface IDSL15/1
 no ip address
 no keepalive
 dsl subscriber Ned_Network
 dsl circuit bb-123
 dsl profile ppp144
 ppp pvc interface ATM0/1 3 277 rx-cttr 144 tx-cttr 144
end

Example 2: Configuring a PPP IDSL Link Using Soft-VCs

This example shows how to create the interface for soft-VCs using the profile and connection traffic table row created in "Example 1: Configuring a PPP IDSL Link Using PVCs" section.

Step 1   Enter configuration mode from the terminal console:

6160# config terminal
Enter configuration commands, one per line.  End with CNTL/Z.
6160(config)#

Step 2   Select the interface that you want to configure:

6160(config)# interface idsl 15/2

Step 3   Apply the profile (this example uses the profile created in the "Creating a PPP Profile" section):

6160(config)# dsl profile ppp144

Step 4   Create the ATM soft-VC linking this IDSL interface to the aggregator (this example uses the traffic descriptor row created in "Creating an ATM Traffic Descriptor Row" section):

Note   The aggregator 20-octet ATM NSAP and VPI/VCI must be known to create the soft-VC link.
6160(config)# ppp soft-vc dest-address 47.0091.8100.0000.0010.11bc.8a01.4000.0c80.0030.00 vc 5 411 
rx-cttr 144 tx-cttr 144

Step 5   Set the circuit identifier (this step is optional):

6160(config)# dsl circuit bb-124

Step 6   Set the subscriber name (this step is optional):

6160(config)# dsl subscriber Ned_Network

Step 7   Repeat steps 2 through 6 for any additional IDSL interfaces you want to configure.

Step 8   Exit configuration mode:

6160(config)# end

Use the show running-config [interface IDSL slot/port] command to verify the configuration of the IDSL interface:

6160# show running-config interface IDSL 15/2
Building configuration...
 
Current configuration:
!
interface IDSL15/2
 no ip address
 no keepalive
 dsl subscriber Ned_Network
 dsl circuit bb-124
 dsl profile ppp144
 ppp soft-vc dest-address 47.0091.8100.0000.0010.11bc.8a01.4000.0c80.0030.00 vc 5 411 rx-cttr 144 tx-cttr 144
end

Example 3: Configuring a Frame Relay IDSL Link Using PVCs

As with configuring PPP IDSL links, there are three basic steps to configure a Frame Relay IDSL link using PVCs:

    1. Create a Frame Relay profile

    2. Create a Frame Relay traffic descriptor row

    3. Configure an IDSL interface

Creating a Frame Relay Profile

The profile specifies the bit rate and the encapsulation you want to configure on the IDSL ports. You can create a new profile or use the default profile (named "default"). This example creates a new profile.

Step 1   Enter configuration mode from the terminal console:

6160# config terminal
Enter configuration commands, one per line.  End with CNTL/Z.
6160(config)#

Step 2   Enter the profile name:

6160(config)# dsl-profile fr128-lmi-cisco

Step 3   Set the encapsulation (this example runs Frame Relay over HDLC on the IDSL link):

6160(cfg-dsl-profile)# idsl encapsulation frame-relay

Step 4   Set the bit rate:

6160(cfg-dsl-profile)# idsl bitrate 128

Step 5   Set the link management type:

6160(cfg-dsl-profile)# idsl frame-relay lmi-type cisco

Step 6   Exit configuration mode:

6160(cfg-dsl-profile)# end

Creating a Frame Relay Traffic Descriptor Row

After you create a Frame Relay profile, you specify the Frame Relay connection traffic parameters. To do this, create a traffic descriptor row in the Frame Relay connection traffic table.

Step 1   Enter configuration mode from the terminal console:

6160# config terminal
Enter configuration commands, one per line.  End with CNTL/Z.
6160(config)#

Step 2   Create a row in the Frame Relay connection traffic table:

6160(config)#frame-relay connection-traffic-table-row index 128 128000 32768 128000 vbr-rt
Note   The Peak Info Rate (PIR) should always be set equal to the IDSL interface bit rate to ensure proper allocation of ATM bandwidth in the Cisco 6160, and throughout the ATM network.

Step 3   Exit configuration mode:

6160(config)# end

Configuring a Frame Relay IDSL Interface

After configuring the Frame Relay traffic descriptor row, you configure the IDSL interface.

Step 1   Enter configuration mode from the terminal console:

6160# config terminal
Enter configuration commands, one per line.  End with CNTL/Z.
6160(config)#

Step 2   Select the interface that you want to configure:

6160(config)# interface idsl 15/3

Step 3   Apply the profile (this example uses the profile created in the "Creating a Frame Relay Profile" section):

6160(config)# dsl profile fr128-lmi-cisco

Step 4   Create the ATM PVC linking this IDSL interface to the aggregator (this example uses the traffic descriptor row created in "Creating a Frame Relay Traffic Descriptor Row" section):

6160(config)# frame-relay pvc 153 rx-cttr 128 tx-cttr 128 service translation interface atm 0/1 1 234
Note   This example assumes that the aggregator is attached directly or indirectly, through trunk port atm 0/1 on PVC 1/234.

Step 5   Set the circuit identifier (this step is optional):

6160(config)# dsl circuit cc-225

Step 6   Set the subscriber name (this step is optional):

6160(config)# dsl subscriber Ned_Network

Step 7   Repeat steps 2 through 6 for any additional IDSL interfaces you want to configure.

Step 8   Exit configuration mode:

6160(config)# end

In this example, service translation (in Step 4) transports data across the ATM network using RFC1483 LLC mode. Alternatively, if you choose service ppp, this translates the PPP over Frame Relay data (RFC1973) and transports it across the network using RFC2364 PPPoATM LLC mode.

When you configure PVCs for IDSL interfaces operating in Frame Relay mode, you can map up to 4 DLCIs per IDSL interface to ATM PVCs. Mapping multiple DLCIs requires a Frame Relay connection traffic table row that does not consume the entire bandwidth. In other words, the aggregate allocated Frame Relay bandwidth cannot exceed the IDSL bit rate.

Use the show running-config [interface IDSL slot/port] command to verify the configuration of the IDSL interface:

6160# show running-config interface idsl 15/3
Building configuration...
 
Current configuration:
!
interface IDSL15/3
 no ip address
 dsl subscriber Ned_Network
 dsl circuit cc-225
 dsl profile fr128-lmi-cisco
 no arp frame-relay
 frame-relay pvc 153 rx-cttr 128 tx-cttr 128 service translation
 interface  ATM0/1 1 234 
end

Example 4: Configuring a Frame Relay IDSL Link Using Soft-VCs

This example shows how to create the interface for soft-VCs using the profile and connection traffic table row created in "Example 3: Configuring a Frame Relay IDSL Link Using PVCs" section.

Step 1   Enter configuration mode from the terminal console:

6160# config terminal
Enter configuration commands, one per line.  End with CNTL/Z.
6160(config)#

Step 2   Select the interface that you want to configure:

6160(config)# interface idsl 15/4

Step 3   Apply the profile (this example uses the profile created in the "Creating a Frame Relay Profile" section):

6160(config)# dsl profile fr128-lmi-cisco

Step 4   Create the Frame Relay soft-VC linking this IDSL interface to the aggregator (this example uses the traffic descriptor row created in "Creating a Frame Relay Traffic Descriptor Row" section):

Note   The aggregator 20-octet ATM NSAP and VPI/VCI must be known to create the soft-VC link.
6160(config)# frame-relay soft-vc 154 dest-address 47.0091.8100.0000.0010.11bc.8a01.4000.0c80.0030.00 vc 3 777 rx-cttr 128 tx-cttr 128 service translation

Step 5   Set the circuit identifier (this step is optional):

6160(config)# dsl circuit dd-497

Step 6   Set the subscriber name (this step is optional):

6160(config)# dsl subscriber Ned_Network

Step 7   Repeat steps 2 through 6 for any additional IDSL interfaces you want to configure.

Step 8   Exit configuration mode:

6160(config)# end

In this example, service translation (in Step 4) transports data across the ATM network using RFC1483 LLC mode. Alternatively, if you choose service ppp, this translates the PPP over Frame Relay data (RFC1973) and transports it across the network using RFC2364 PPPoATM LLC mode.

When you configure PVCs for IDSL interfaces operating in Frame Relay mode, you can map up to 4 DLCIs per IDSL interface to ATM PVCs. Mapping multiple DLCIs requires a Frame Relay connection traffic table row that does not consume the entire bandwidth. In other words, the aggregate allocated Frame Relay bandwidth cannot exceed the IDSL bit rate.

Use the show running-config [interface IDSL slot/port] command to verify the configuration of the IDSL interface:

6160# show running-config interface idsl 15/4
Building configuration...
 
Current configuration:
!
interface IDSL15/4
 no ip address
 dsl subscriber Ned_Network
 dsl circuit dd-497
 dsl profile fr128-lmi-cisco
 no arp frame-relay
 frame-relay soft-vc 154 dest-address 47.0091.8100.0000.0010.11bc.8a01.4000.0c80.0030.00 vc 3 777 rx-cttr 128 tx-cttr 128 
end

Example 5: Creating Multiple Frame Relay VCs-per-IDSL Interface

You can configure up to 4 Permanent Virtual Circuits (PVCs) or soft-VCs per IDSL interface when you operate using Frame Relay encapsulation. To do this, the total bandwidth of the IDSL link (the physical bit rate), must be divided among the VCs. You do this by dividing the Committed Info Rate (CIR).

Step 1   Enter configuration mode from the terminal console:

6160# config terminal
Enter configuration commands, one per line.  End with CNTL/Z.
6160(config)#

Step 2   Create a row in the Frame Relay connection traffic table:

6160(config)# frame-relay connection-traffic-table-row index 64 64000 32768 128000 vbr-rt
Note   Always set the Peak Info Rate (PIR) equal to the IDSL interface bit rate to ensure proper allocation of ATM bandwidth in the Cisco 6160, and throughout the ATM network. In this example the total PIR bandwidth of 128000 bits/sec is evenly divided to create 2 VCs: 1 PVC and 1 soft-VC.

Step 3   Select the interface that you want to configure:

6160(config)# interface idsl 15/5

Step 4   Create the ATM PVC linking this IDSL interface to the aggregator:

6160(config)# frame-relay pvc 155 rx-cttr 64 tx-cttr 64 service translation interface atm 0/1 2/345
Note   This example assumes that the aggregator is attached directly or indirectly, through trunk port atm 0/1 on PVC 1/345.

Step 5   Create the Frame Relay soft-VC linking this IDSL interface to the aggregator:

6160(config)# frame-relay soft-vc 156 dest-address 47.0091.8100.0000.0010.11bc.8a01.4000.0c80.0030.00vc 4 567 rx-cttr 64 tx cttr 64
Note   The aggregator 20-octet ATM NSAP and VPI/VCI must be known to create the soft-VC link.

Step 6   Exit configuration mode:

6160(config)# end

IDSL Maintenance

This section contains command information to monitor and test the line card. The 8-port IDSL ITU-C line card supports loopback testing of remote CPE and BERT line testing. For additional information about IDSL commands, refer to the Configuration Guide for Cisco DSLAMs with NI-2 and the Command Reference for Cisco DSLAMs with NI-2.

IDSL Port Statistics Support

IDSL statistics are available from both the CLI and from MIBs. Statistics are kept on both 15-minute and 24-hour intervals.

The show dsl interface IDSL <slot/port> command displays the following IDSL line card port statistics:

The statistics are displayed for:

The following MIBs for the DSLAM platform specifically support the 8-port IDSL ITU-C line card:

Use the show dsl [interface IDSL slot/port] command to display IDSL line card port statistics:

6160# show dsl interface idsl 15/5
Port Status:
 Subscriber Name:Ned_Network Circuit ID:dd-444
 IOS admin:UP     oper:UP     Card status:ITUC-1-8IDSL
 Last Change:00 days, 01 hrs, 08 min, 48 sec  No. of changes:1
 
 Loopback:none
 
 Firmware version:955396091
 
 BERT has not been executed on this interface
 
Configured:
 Profile Name:lmi-cisco
 
 IDSL profile parameters
      Bitrate:             128 kbit/sec
      Encapsulation:       frame-relay
      Frame Relay parameters:
         UPC intent:          pass
         Bc default:          32768 bytes
         LMI type:            cisco
         lmi-n392dce:         2 events
         lmi-n393dce:         2 events
         lmi-t392dce:         15 seconds
 
Performance Statistics:
 Physical layer
  Coding violations        :0
  Errored seconds          :1
  Severely errored seconds :1
 Physical layer (far end)
  Coding violations        :1
  Errored seconds          :1
  Severely errored seconds :0
 HDLC layer
  Coding violations        :0
  Aborts                   :0
  Aligns                   :0
  Shorts                   :0
  Longs                    :0
  Discards                 :0
 
6160#

Loopback Testing

The loopback test sends a command to CPE or repeaters with a request to loop the Tx traffic back towards the IDSL line card. Use the following command to start the loopback test:

6160# [no] loopback {diagnostic | remote [brite [1-6]] [crc]}
Note   The 8-port IDSL ITU-C line card provides no direct support for line-powered repeaters.

BERT Testing

The Bit Error Rate Test (BERT) command sends a BERT pattern towards the CPE interface to measure the quality of data transmission. The BERT pattern is a 2047 pseudo-random bit sequence that is applied to one port at a time. The BERT command can only be issued after the remote loopback at the selected CPE or repeater is configured on the port to be tested.

Use the following DSL command to start the BERT test:

6160# dsl test IDSL <slot>/<port> bert [interval 1-30] [abort]

The interval is specified in minutes (default = 1 minute).

Note   The loopback should be removed after the BERT test is completed.

Use the show dsl test bert IDSL <slot/port> command to display the results of the BERT test:

6160# show dsl test bert idsl 15/1
BERT is NOT currently active on this interface
 Last BERT executed  :00:01:59
 Test duration       :1 minute(s)
 Total bits received :7690716
 Bit errors          :0
 Sync count          :1
 Total sync time     :00:01:00

FCC Class A Compliance

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio-frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case users will be required to correct the interference at their own expense.

You can determine whether your equipment is causing interference by turning it off. If the interference stops, it was probably caused by the Cisco equipment or one of its peripheral devices. If the equipment causes interference to radio or television reception, try to correct the interference by using one or more of the following measures:

Modifying the equipment without authorization from Cisco Systems may result in the equipment no longer complying with FCC requirements for Class A or Class B digital devices. In that event, your right to use the equipment may be limited by FCC regulations, and you may be required to correct any interference to radio or television communications at your own expense.

Canadian Compliance

English: This Class A digital apparatus complies with Canadian ICES-003.

French: Cet appareil numérique de la classe A est conforme à la norme NMB-003 du Canada.

Cisco Connection Online

Cisco Connection Online (CCO) is Cisco Systems' primary, real-time support channel. Maintenance customers and partners can self-register on CCO to obtain additional information and services.

Available 24 hours a day, 7 days a week, CCO provides a wealth of standard and value-added services to Cisco's customers and business partners. CCO services include product information, product documentation, software updates, release notes, technical tips, the Bug Navigator, configuration notes, brochures, descriptions of service offerings, and download access to public and authorized files.

CCO serves a wide variety of users through two interfaces that are updated and enhanced simultaneously: a character-based version and a multimedia version that resides on the World Wide Web (WWW). The character-based CCO supports Zmodem, Kermit, Xmodem, FTP, and Internet e-mail, and it is excellent for quick access to information over lower bandwidths. The WWW version of CCO provides richly formatted documents with photographs, figures, graphics, and video, as well as hyperlinks to related information.

You can access CCO in the following ways:

For a copy of CCO's Frequently Asked Questions (FAQ), contact cco-help@cisco.com. For additional information, contact cco-team@cisco.com.

Note   If you are a network administrator and need personal technical assistance with a Cisco product that is under warranty or covered by a maintenance contract, contact the Cisco Technical Assistance Center (TAC) at 800 553-2447, 408 526-7209, or tac@cisco.com. To obtain general information about Cisco Systems, Cisco products, or upgrades, contact 800 553-6387, 408 526-7208, or cs-rep@cisco.com.

Documentation CD-ROM

Cisco documentation and additional literature are available in a CD-ROM package, which ships with your product. The Documentation CD-ROM, a member of the Cisco Connection Family, is updated monthly. Therefore, it might be more current than printed documentation. To order additional copies of the Documentation CD-ROM, contact your local sales representative or call customer service. The CD-ROM package is available as a single package or as an annual subscription. You can also access Cisco documentation on the World Wide Web at http://www.cisco.com, http://www-china.cisco.com, or http://www-europe.cisco.com.

If you are reading Cisco product documentation on the World Wide Web, you can submit comments electronically. Click Feedback in the toolbar and select Documentation. After you complete the form, click Submit to send it to Cisco. We appreciate your comments.

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Copyright © 2000, Cisco Systems, Inc.
All rights reserved.


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Posted: Wed Aug 9 12:43:09 PDT 2000
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