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This chapter explains how to configure cards and lines for service delivery.
Card parameters control the operational characteristics of the card as a whole. The MGX 8260 Media Gateway supports the following cards:
See the following sections for card configuration tasks.
This sections describes how to view and set card-level parameters.
To list information for a single card, enter the lscd command, specifying the card location by a slot number in the MGX 8260 chassis. Slots are numbered from 1 through 16, starting at the left.
The system displays the card information.
=======================================================================
Physical Card Entry (lscd)
=======================================================================
Physical Card Number : 11
Logical Card Number : 11
Front Card Type : bsc
Back Card Type : dmcBsc6T3
Daughter Card 1 Type : bim4T3E3
Daughter Card 2 Type : *
Card State : active
Card Service : 0
Hardware Revision : 1
Firmware Revision : BSC_B_r01.01.b1
Software Revision : BSC_r01.01.b1
Front Card Serial # : bsc-093
Back Card Serial # : t3e3-141
Fab Version :
Failure Reason : failResonNone
Reset Reason : watchDogReset
Mismatch Reason : noMismatch
Integrated line alarm state : Clear
Line performance alarm state : Clear
EMM temperature alarm state : Clear
EMM voltage alarm state : Clear
SW error alarm state : Clear
Component failure alarm state : Clear
ATM Queue Profile # : 1
RAM Backup : disabled
Interface Mode : bkcd
| Displayed Information | Description |
|---|---|
Physical Card Number | The physical slot number of the card |
Logical Card Number | The logical slot number of the card |
Front Card Type | The front card type:
|
Back Card Type | The back card type:
|
Daughter Card1 Type | The type of daughter card installed on the card:
|
Daughter Card 2 Type | The type of secondary daughter card installed on the card. See Daughter Card 1 Types. |
Card State | The status of the card:
|
Card Service | A bitmap of the services offered by the card. When set, the card offers the service:
For more information, see the "Understanding Bitmaps" section. |
Hardware Revision | The hardware revision of the card. |
Firmware Revision | The firmware revision of the card. |
Software Revision | The software revision of the card. |
Front Card Serial # | The serial number of the front card. |
Back Card Serial # | The serial number of the back card. |
Fab Version | The fab version of the card. |
Failure Reason | The reason of the last card failure:
|
Reset Reason | The reason the card was last reset:
|
Mismatch Reason | The reason for the mismatch for the card:
|
Integrated line alarm state | The state of the integrated line alarm for the card:
|
Line performance alarm state | The state of the line performance alarm for the card:
|
EMM temperature alarm state | The state of the EMM temperature alarm for the card:
|
EMM voltage alarm state | The state of the EMM voltage alarm for the card:
|
SW error alarm state | The state of the software error alarm for the card:
|
Component failure alarm state | The state of the component alarm for the card:
|
ATM Queue Profile
| The queue profile for ATM traffic. Valid profile numbers are 1 - 10. |
RAM Backup
| The status of RAM backup facility:
|
Interface Mode
| The interface mode:
For more information, see the "Choosing the NSC Interface Mode" section. |
To list summary information for all cards, enter the lscds command.
The system displays information for all cards:
=====================================================================
Physical Card Entries (lscds)
=====================================================================
PhyCd LogCd FC BC Dgtr Cd1 Dgtr Cd2 Card State SW Rev
===== ===== ==== ========= ========== ======== ========== ==========
1 1 nsc nmc16T1E1 msmDSPV msmDSPV active NSC_r01.01.b1
2 2 nsc nmc16T1E1 msmDSPV msmDSPV active NSC_r01.01.b1
3 3 nsc nmc16T1E1 msmDSPV msmDSPV active NSC_r01.01.b1
4 4 nsc rnd16T1E1 msmDSPV msmDSPV standby NSC_r01.01.b1
5 5 nsc nmc16T1E1 msmDSPV msmDSPV active NSC_r01.01.b1
6 6 nsc nmc16T1E1 msmDSPV msmDSPV active NSC_r01.01.b1
7 7 * * * * empty Unknown
8 8 * * * * empty Unknown
9 9 scc scc4FE bim4FE * standby SCC_r01.01.b1
10 9 scc scc4FE bim4FE * active SCC_r01.01.b1
11 11 bsc dmcBsc6T3 bim4T3E3 * active BSC_r01.01.b1
12 12 bsc dmcBsc6T3 bim4T3E3 * active BSC_r01.01.b1
13 13 bsc dmcBsc6T3 bim4T3E3 * active BSC_r01.01.b1
14 14 bsc dmcBsc6T3 bim4T3E3 * active BSC_r01.01.b1
15 15 bsc dmcBsc6T3 bim4T3E3 * active BSC_r01.01.b1
16 16 * * * * empty Unknown
| Displayed Information | Description |
|---|---|
PhyCd | The physical slot number of the card |
LogCd | The logical slot number of the card |
FC | The front card type |
BC | The back card type |
Dgtr Cd1 | The type of daughter card installed on the NSC or SCC card |
Dgtr Cd2 | The type of secondary daughter card installed on the NSC card |
Card State | The status of the card |
FW Rev | The firmware revision that is running on the card |
To view DSP information, enter the lsdsps command.
The system lists current DSP information:
======================================================================
MultiService Module (DSP) Entries (lsdsps)
======================================================================
Slot Number DSP MSM Number DSP Number DSP Status
=============== ================== ================ ================
2 1 1 active
2 1 2 active
2 1 3 active
2 1 4 active
2 1 5 active
2 1 6 active
2 1 7 active
2 1 8 active
| Displayed Information | Description |
|---|---|
Slot Number | The slot number of the multi-service module |
DSP MSM Number | The multi-service module number |
DSP Number | The DSP number on the multi-service module |
DSP Status | The status of the DSP |
To view MSM information, enter the lsmsms command.
The system lists current MSM information:
====================================================================
MultiService Module (MSM) Entries (lsmsms)
====================================================================
Slot Number MSM Number MSM Type MSM Status
=============== ================ =============== ================
2 1 msmDSPV active
2 2 msmDSPV offline
6 1 msmDSPV active
6 2 msmDSPV offline
| Displayed Information | Description |
|---|---|
Slot Number | The slot number of the multi-service module |
MSM Number | The multi-service module number |
MSM Type | The type of multi-service module |
MSM Status | The multi-service module status |
The interface mode controls the signal source for the T1 interface of an NSC card. There are three modes (see Figure 7-1)
All sixteen T1 lines operate in the same mode. The system ignores this setting for cards other than the NSC.

In the back card mode, the NSC transmits and receives traffic through the back card and its T1/E1 interface. The normal signal flow in this case is:
NSC-BC -> NSC-FC -> Bus -> SCC-FC -> SCC-BC where BC = Back Card and FC = Front Card
Choose the back card mode when you are using the NSC card with a T1/E1 back card.
In the back plane mode, the NSC transmits and receives traffic from the DMC front card. The normal signal flow when using a DMC card is:
DMC-BC -> DMC-FC -> Bus -> NSC-FC -> Bus -> SCC-FC -> SCC-BC where BC = Back Card and FC = Front Card
Use the back plane mode when you use the NSC card in conjunction with a DMC card and DS3 lines.
In the no back card mode, the NSC transmits and receives traffic from a SCC front card. The normal signal flow in this case is:
NSC-FC -> Bus -> SCC-FC -> SCC-BC where BC = Back Card and FC = Front Card
Use the no back card mode when using the NSC in conjunction with the SCC Fast Ethernet.
The following table shows the response of the interface mode command for each card type and operating state:
| State | SCC slots 9/10 and BSC slots 11-16 | DMC slots 7/8 | NSC slots 1-8, 11-16 |
|---|---|---|---|
active | Illegal slot number for these states | Illegal slot number for these states | OK |
standby | Illegal | ||
empty | Illegal | ||
inBoot | OK | ||
mismatch | OK | ||
failed | OK | ||
unknown | N/A | N/A |
To set the NSC interface mode, enter the chcdif command, specifying the card number and NSC interface mode. Valid NSC interface mode settings are:
1: back card (default)
2: back plane
3. no back card
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Note Configuring the back card mode with out a back card installed results in a card mismatch. |
The system sets the specified interface mode on the target NSC card. The following example sets the interface mode of card 13 to back plane:
chcdif 13 2
The card resets and reboots into backplane mode.
The ATM queue profile defines the queue behavior for the SCC card. The following table shows the response of ATM profile command for different card types and operating states:
| State | SCC slots 9/10 | DMC slots 7/8 | NSC slots 1-6, 9-16 |
|---|---|---|---|
active | OK | Illegal slot number for these states | Illegal slot number for these states |
standby | Not allowed by standby SCC | ||
empty | Card does not exist | ||
inBoot | Not allowed by standby SCC | ||
mismatch | Not allowed by standby SCC | ||
failed | Not allowed by standby SCC | ||
unknown | Card does not exist | N/A |
To set the ATM queue profile, enter the chqprf command, specifying the slot number of the SCC card, either 9 or 10, and the queue profile, a number from 1 to 10. Profile 1 is the default.
The system sets the specified queue profile on the target SCC card.
The resetcd command restarts a card and restores its stored configuration. The following table shows response of the reset command for different card types and operating states:
| State | SCC slots 9/10 | DMC slots 7/8 | NSC slots 1-8, 11-16 and BSC slots 11-16 |
|---|---|---|---|
active | OK | Service not available on DMC | OK |
standby | OK | ||
empty | Card does not exist. | Card does not exist | |
inBoot | OK | OK | |
mismatch | OK | ||
failed | OK | ||
unknown | Card does not exist | N/A | N/A |
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Warning Resetting a card interrupts service. Perform this operation during light traffic periods or in a pre-arranged maintenance window. |
To reset a card, enter the resetcd command, specifying the card to reset.
The following example resets card 13:
resetcd 13
The MGX 8260 Media Gateway supports both redundant and non-redundant operation for all cards. The SCC and DMC don't require user setup for redundant operation. To configure redundancy for the NSC or BSC, you define protection pairs. The Cisco MGX 8260 uses 1:N protection for NSCs and 1:1 protection for BSCs. With protection, the system switches to a protection card if an active card fails.
Cards configured for redundancy may have logical numbers that are different than physical slot numbers. The physical slot number always represents the physical location of the card in the chassis. The logical slot number is an abstract concept that helps the system keep track of primary and secondary cards.
With 1:1 redundancy, the primary and secondary cards both have the same logical slot number. As such, the system treats them as a single entity for configuration operations. With 1:N redundancy, the secondary card uses logical slot number 0. During switchover, the secondary card assumes the logical number of the card it protects.
A single secondary card can support multiple primary cards. In this configuration, a failure of any of the primary cards causes a switchover to the designated secondary.
For example, a 1:2 redundancy configuration with slot 3 covering slot 1 and slot 5 actually has two redundancy pairs (see Figure 7-2).

Slot 1 is paired with slot 3, with slot 1 as the primary. Slot 5 is also paired with slot 3 with slot 5 as the primary. You can continue to add redundancy pairs to build other ratios of protection. However, you can only have one secondary slot per MGX 8260 chassis. That single secondary slot protects all primary NSC cards in the chassis.
If the primary card in slot one fails, the system switches to the secondary NSC, and the secondary NSC assumes the logical slot number of the card that failed (see Figure 7-3).

The logical slot number of the secondary card changes to 1, even though its physical slot number is 3. Had the slot 5 failed rather than slot 1, the logical slot number of the secondary card would have changed to 5.
You configure BSC protection using a pair of cards configured for 1:1 redundancy. After you configure a redundant pair of BSCs, both cards reboot and return to operation with the same logical slot number. The card LED displays green for the active card and yellow for the standby card.
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Warning Adding BSC redundancy interrupts service. Perform this operation during light traffic periods or in a pre-arranged maintenance window. |
The following example shows how to configure cards 15 and 16 for redundancy (see Figure 7-4).

A failure of the active card causes a switchover to the backup card. During the switchover, the active and standby roles are reversed (see Figure 7-5). The card that failed reboots, and the Card LED changes to either yellow or red, depending on the type of problem.

After repair of the failure, you restore normal operation by invoking a switchback. The system does not automatically restore the protection pair to its original state.
This section describes the process for configuring redundancy for BSC and NSC cards.
To view all redundancy pairs, enter the lsreds command.
The system displays all redundancy pairs:
=======================================================================
Card Redundancy Table (lsreds)
=======================================================================
Primary Slot Secondary Slot
=============== ================
1 3
5 3
| Displayed Information | Description |
|---|---|
Primary Slot | The physical slot for the primary card of the redundancy pair |
Secondary Slot | The physical slot for the secondary card of the redundancy pair |
There are two possible NSC redundancy scenarios: with and without DMC.
Both scenarios require assignment of primary and secondary slot numbers in pairs. The MGX 8260 chassis only supports one secondary slot.
To configure NSC redundancy without DMC, follow these steps:
Step 2 Verify that each primary, active NSC is in the back card mode and is in the active state. List the operational status of all cards using the lscds command.
Step 3 Add a redundancy pair using the addreds command, specifying the slots of the primary and secondary slots.
The primary slot is active during normal operation. The secondary slot is in standby during normal operation and protects the primary slot in the event of a primary failure.
The following example creates a redundancy pair with slot 1 as primary and slot 3 as secondary:
addreds 1 3
Step 4 Repeat the previous step to assign additional primary slots to the designated secondary slot. Each MGX 8260 chassis can have only one secondary slot.
To configure NSC redundancy with DMC, follow these steps:
lscds
Step 2 Verify that the redundant NSC does not have a redundancy back card installed and is in the standby state. See "Viewing Summary Information for Cards" section.
Step 3 Verify that each primary NSC does not have a back card installed and is in the active state.
Step 4 Add a redundancy pair using the addreds command.
Step 5 Repeat the previous step to assign additional primary slots to the designated secondary slot. Each MGX 8260 chassis can have only one secondary slot for NSC cards.
In order to successfully configure a redundant pair, the following conditions must be true:
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Warning Adding BSC redundancy interrupts service. Perform this operation during light traffic periods or in a pre-arranged maintenance window. |
To configure BSC redundancy, follow these steps:
Step 2 Add a redundant "Y" cable between all ports on the two cards.
Step 3 From a telnet session, add a redundancy pair using the addreds command.
Both cards reboot and return to operation with the same logical slot number.
To delete a redundancy pair, enter the delreds command specifying the primary and secondary slots. The following example deletes the redundancy pair where slot 1 is primary and slot 3 is secondary:
delreds 1 3
The redundant card continues to protect other primary cards with which it is paired.
The switchover from primary to secondary cards is automatic when a primary card fails. Switching back is a manual task. The following table shows the response of the switchback command as a function of card type and operational state:
| State | SCC slots 9/10 | DMC slots 7/8 | NSC slots 1-8, 11-16 and BSC slots 11-16 |
|---|---|---|---|
active | OK | Service not available on DMC | Switchback from secondary to primary only. |
standby | Illegal slot number for this state. | ||
empty | Card does not exist. | ||
inBoot | Illegal slot number for this state. | ||
mismatch | |||
failed | |||
unknown | N/A | N/A |
To force a switchback, enter the swcd command specifying the physical number of the primary card in a protection pair.
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Note To force a switchover, rather than a switch back, reset the primary card using resetcd. |
See the following sections for line configuration tasks.
The MGX 8260 Media Gateway has the following types of lines:
You can view all existing MGX 8260 lines in a single report. From this report, you see a list of lines and their logical slot and line type. Based on the line type, you proceed with line-specific commands to configure the line or obtain more information.
To view the common line listing, enter the lslns command.
The system displays the common line entries:
=====================================================================
Common Line Entries (lslns)
=====================================================================
Line Number (Slot.Line) Line Type
================================= ==================================
2.1 dsx1-t1
6.1 dsx1-t1
11.1 dsx1-t1
11.2 dsx1-t1
11.501 dsx3-t3
| Displayed Information | Description |
|---|---|
Line Number | The logical slot and line number, expressed as Slot.Line |
Line Type | The type of line:
|
From the command line interface, you can add, change, delete, and view DS1 lines. Use caution when changing DS1 configurations because you may interrupt service.
To view detail information for a single DS1, enter the lsds1ln command, specifying the logical number of the slot in the MGX 8260 chassis and the number of the DS1 line (expressed as slot.line).
The system displays the following DS1 details:
=======================================================================
DS1 Line Entry (lsds1ln)
=======================================================================
DS1 Line : 6.1
Line Type : dsx1ESF
Line Coding : dsx1B8ZS
Send Code : dsx1SendNoCode
Line Signal Mode : none
Line Signal Bits : 1
Time Elapsed in Interval : 704
Line Valid Intervals : 0
Line Loopback Config : dsx1NoLoop
Transmit Clock Source : localTiming
Circuit Identifier : 5
Alarm : Yes
Rcv FE LOF : No
Transmit FE LOF : Yes
Rcv AIS : No
Transmit AIS : No
Loss of Frame : Yes
Loss of Signal : No
Loopback State : No
T16 AIS : No
Rcv FE LOMF : No
Transmit FE LOMF : No
Line Status : UP
Other Failure : No
| Displayed Information | Description |
|---|---|
DS1 Line | The logical slot number and line number. |
Line Type | The type of circuit:
|
Line Coding | The method of zero code suppression: 2---dsx1B8ZS 5---dsx1AMI |
Send Code | The type of code being sent across the DS1 interface by the device. Values are 1 - 8 and have the following names:
|
Line Signal Mode | The signal mode for the transmit direction. In the receive direction, it is always set to robbed bit.
|
Line Signal Bits | The 4-bit signaling pattern, represented by an integer: 1---0000 2---0001 3---0010 4---0011 5---0100 6---0101 |
Time Elapsed in Interval | The number of seconds since the start of the near end error measurement period. |
Line Valid Intervals | The number of 15 minute intervals during which the system collected valid data for the near end. |
Line Loopback Config | The loopback configuration of this interface.
|
Transmit Clock Source | The clock source for the transmit signal.
|
Circuit Identifier | The Cisco equipment circuit identifier, displayed as a text string. |
Alarm | Alarm state, yes or no. |
Rcv FE LOF | Far end LOF (Yellow Alarm), yes or no. |
Transmit FE LOF | Far end sending LOF Indication, yes or no. |
Rcv AIS | Far end sending AIS, yes or no. |
Transmit AIS | Near end sending AIS, yes or no. |
Loss of Frame | Near end LOF (Red Alarm), yes or no. |
Loss of Signal | Near end LOS, yes or no. |
Loopback State | Near end is looped, yes or no. |
T16 AIS | E1 TS16 AIS, yes or no. |
Rcv FE LOMF | Far end sending TS16 LOMF, yes or no. |
Transmit FE LOMF | Near end sending TS16 LOMF, yes or no. |
Line Status | Line status, yes or no. |
Other Failure | Other failure, yes or no. |
To list summary DS1 information for all lines, enter the lsds1lns command.
The system displays summary information for all DS1 lines:
==================================================================
DS1 Lines (lsds1lns)
==================================================================
Slot.Line Line Type Line Coding Line Status SignalMode
========= =========== ============= ============= ==========
2.1 dsx1ESF dsx1B8ZS 2074 none
6.1 dsx1ESF dsx1AMI 2074 none
11.1 dsx1ESF dsx1AMI 80a4 none
11.2 dsx1ESF dsx1AMI 2024 none
| Displayed Information | Description |
|---|---|
Slot.Line | The logical slot number and line number for the NSC or BSC |
Line Type | The type of DS1 line implemented in this circuit. The type of circuit affects the maximum bit rate for the circuit, as well as the interpretation of usage and error statistics |
Line Coding | The coding used for zero code suppression on the DS1 line |
Line Status | The DS1 line status expressed as a hex number. Interpret the bits from right to left as follows:
|
Signal Mode | The signal mode for the transmit direction |
This procedure explains how to add DS1 lines to BSC or NSC cards. DS1 lines within a DS3 line have the following mapping:
| DS 3 Line Number | DS1 Line Number |
|---|---|
501 | 1-28 |
502 | 29-56 |
503 | 57-84 |
504 | 85-112 |
505 | 113-140 |
506 | 141-168 |
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Note Before adding DS1 channels to a DS3 line, ensure the corresponding DS3 line exists. |
To add a DS1 line, follow these steps:
The following example adds two DS1 lines with AMI line coding at slot 11 lines 6 and 7:
addds1ln 11.6 2 # 5
This example assumes DS3 line number 501 already exists in slot 11.
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Note The system stops adding lines on the first failure, even if later additions are valid. |
Step 2 Add other DS1 lines, as required.
Step 3 Verify the configuration for the new lines using the lsds1ln command, specifying the logical number of the slot in the MGX 8260 chassis and the number of the DS1 line on the NSC, delimited by a period (slot.line).
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Warning Changing a DS1 line interrupts service. Perform this operation during light traffic periods or in a pre-arranged maintenance window. |
To change the configuration of a DS1 line, enter the chds1ln command and optional parameters. Unspecified parameters, designated by a # symbol, retain their current settings.
For example, the following command activates a local diagnosis loopback on line 6 of logical slot 11:
chds1ln 11.6 # # # # 4
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Warning Deleting a DS1 line interrupts service. Perform this operation during light traffic periods or in a pre-arranged maintenance window. |
To delete a DS1 line type, enter the delds1ln command, specifying the slot.line and number of lines.
The system deactivates the DS1 line and removes its configuration from the database.
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Note The MGX 8260 inhibits deletion of a line with an active connection. |
The following example deletes 2 DS1 lines beginning at line 6 of slot 11:
delds1ln 11.6 2
From the command line interface, you can add, change, delete, and view DS3 lines. These procedures apply to all DS3 lines, regardless of the card type.
To view detail information for a single DS3 line, enter the lsds3ln command, specifying the location (slot.line) of the DS3 line. Valid slot values: 7 or 8 for the DMC card; 11 -16 for the BSC card. Valid line values are 1-6.
The system displays all DS3 settings for the specified line:
=======================================================================
DS3 Line Entry (lsds3ln)
=======================================================================
DS3 Line : 11.501
Line Type : dsx3M23
Line Coding : dsx3B3ZS
Send Code : dsx3SendNoCode
Line Status : 464
Time Elapsed : 559
Valid Intervals : 0
Cable Length : 1
Transmit Clock Source : localTiming
Circuit Identifier : 0
Alarm : Yes
Rcv RAI Failure : No
Xmit RAI Failure : Yes
Rcv AIS : No
Transmit AIS : No
Loss of Frame : Yes
Loss of Signal : Yes
Loopback State : No
Rcv Test Code : No
Other Failure : No
| Displayed Information | Description |
|---|---|
DS3 Line | The slot and line number of the specified DS3 line |
Line Type | The DS3 C-bit usage:
|
Line Coding | The zero code suppression for this interface, fixed at dsx3B3ZS. |
Send Code | The type of code sent across the DS3 interface
|
Time Elapsed | The number of elapsed seconds since the start of the near end error measurement period |
Valid Intervals | The number of 15 minute intervals during which the system collected valid data for the near end |
Transmit Clock Source | The source for the transmit signal clock
|
Circuit Identifier | The Cisco equipment circuit identifier, expressed as a text string |
Alarm | Alarm active, yes or no |
Rcv RAI Failure | Receive RAI (Yellow), yes or no |
Xmit RAI Failure | Transmit RAI (Yellow), yes or no |
Rcv AIS | Receiving AIS, yes or no |
Transmit AIS | Transmitting AIS, yes or no |
Loss of Frame | Loss of Frame, yes or no |
Loss of Signal | Loss of Signal, yes or no |
Loopback State | Loopback active, yes or no |
Rcv Test Code | Receiving a test code, yes or no |
Other Failure | Other failure, yes or no |
To view summary information for all DS3 lines, enter the lsds3lns command.
The system displays summary information for all DS3 lines:
=====================================================
DS3 Lines (lsds3lns)
=====================================================
Slot.Line Line Type Line Coding Line Status
========= ========== ============ =============
11.501 dsx3M23 dsx3B3ZS 464
11.502 dsx3M23 dsx3B3ZS 424
11.503 dsx3M23 dsx3B3ZS 424
| Displayed Information | Description |
|---|---|
Slot.Line | The slot and line number of the specified DS3 line. |
Line Type | The DS3 C-bit usage or E3 application. |
Line Coding | The zero code suppression for this interface. |
Line Status | The DS3 line status expressed as a hex number. Interpret the bits from right to left as follows:
|
When adding DS3 lines that contain DS1 channels, add the DS3 lines first.
To add DS3 lines, follow these steps:
The following example adds two new DS3 lines with default settings to slot 11 lines 501 and 502:
addds3ln 11.501 2
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Note The system stops adding lines on the first failure. |
Step 2 Add other DS3 lines, as necessary.
Step 3 Check the configuration, using the lsds3ln command, specifying the location (slot.line) of the new line.
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Warning Changing a DS3 line interrupts service. Perform this operation during light traffic periods or in a pre-arranged maintenance window. |
To change the settings of a DS3 line, enter the chds3ln command as described in the "chds3ln" section.
For example, to activate a line loopback on DS3 line 501 in logical slot 11:
chds3ln 11.501 # # # # 3
To delete a DS3 line, enter the delds3ln command, specifying the logical number slot and line number (slot.line), and the number of lines to delete. Valid slot values: 7 or 8 for the DMC card; 11 -16 for the BSC card. Valid line values are 1-6.
The system deactivates the DS3 line and removes its configuration from the database.
The following example deletes two DS3 lines beginning at line 501 in slot 11:
delds3ln 11.501 2
The DMC maps source DS1 channels from the DS3 interface to destination DS1 channels on the NSC. The mapping is one-to-one and can connect any source DS1 to any destination DS1 (see Figure 7-6).

A single DS3 can map to multiple NSCs or multiple DS3s can map to a single NSC. Map definitions can be organized or arbitrary, but often occur in contiguous groups because you can define a range of mappings with a single command. The MGX 8260 Media Gateway stores map definitions in a map table, as follows:
| Source DS3 Line | Source DS1 Line | Destination NSC Slot | Destination DS1 Line |
|---|---|---|---|
1 | 1 | 1 | 16 |
1 | 2 | 1 | 1 |
1 | 3 | 1 | 2 |
1 | 4 | 1 | 3 |
1 | 28 | 5 | 1 |
You can initialize or alter the map table from any of the management interfaces or from the command line. This section describes how to add, change, or delete entries from the command line.
You can add map entries individually or within a range. When adding individual map entries, the following restrictions apply:
You simplify the process of mapping DS3 to DS1 lines by mapping a range of DS1s rather than individual lines. A map range is added in a sequential and contiguous manner, and can cross either source or destination boundaries.
The entire range of source and destination lines must be contiguous. The system stops mapping lines if it encounters a source or destination that is already assigned, leaving map pairs before the contiguous break assigned and the rest unassigned.
To add map table entries, enter the addm13 command as described in the "addm13" section.
For example, in an MGX 8260 Media Gateway without any existing mapping, specify the maximum number of mappings as follows:
addm13 1 1 1 1 168
To add three map entries, enter the following command:
addm13 1 3 1 1 3
This example creates the following map table:
| Source DS3 Line | Source DS1 Line | Destination NSC Slot | Destination DS1 Line |
|---|---|---|---|
1 | 3 | 1 | 1 |
1 | 4 | 1 | 2 |
1 | 5 | 1 | 3 |
You change map table entries one at a time. A change removes an existing mapping and replaces it with a map between the old source and new destination. To apply a change, the following must be true:
Changing a map entry interrupts service to a large number of subscribers. Perform this task on inactive lines or during light traffic periods.
To change an existing map entry, enter the chm13 command. For example the following command sequence adds three map table entries and then changes one of them:
addm13 1 3 1 1 3 chm13 1 3 1 4
The example creates the following map table:
| Source DS3 Line | Source DS1 Line | Destination NSC Slot | Destination DS1 Line |
|---|---|---|---|
1 | 3 | 1 | 4 |
1 | 4 | 1 | 2 |
1 | 5 | 1 | 3 |
You can delete map table entries individually or in a range. When deleting a range of entries, the entire number of source and destination lines should be contiguous. The system stops deleting lines if it encounters a break in source range, deleting only those lines before the break.
Deleting map entries discontinues or interrupts service to a large number of subscribers. Perform this task only on lines that are out of service.
To delete map table entries, enter the delm13 command. The following example deletes three sequential map table entries, starting at DS3 line 1, DS1 line 1:
delm13 1 1 3
You can view the map table for the system as a whole or for individual source DS1 lines.
To view map tables for a single source DS1, enter the lsm13 command, specifying the number of the source DS3 line and number of the DS1 line within the DS3 line. Valid entries are 1 through 6 for the DS3 and 1 through 28 for the DS1.The system lists map table entries for the specified line.
To view all DS3 to DS1 mappings, enter the lsm13s command. The system lists all map table entries:
==================================================================
DMC T3-T1 Mapping Entries (lsm13s)
==================================================================
Src T3 Line Src T1 Line Dst Slot Dst T1 Line
============= ============= ============= ================
1 3 1 1
1 4 1 4
1 5 1 3
The SCC has four Fast Ethernet lines. This section explains how to configure and manage these lines.
To view information for a single Fast Ethernet line, enter the lsethln command, specifying the slot and line number of the SCC (slot.line).
The system displays detail information for the Fast Ethernet:
=======================================================================
Ether Line Entry (lsethln)
=======================================================================
Ether Line : 9.1
MAC Address : 00.00.00.00.00.20
IP Address : 10.15.26.98
Subnet Mask : 255.255.255.0
Primary Gateway : 10.15.26.1
Router Discovery Protocol: enabled
Target State : active
Operational Status : active
Duplex Mode : full
| Displayed Information | Description |
|---|---|
Ether Line | The slot number and line number of the Fast Ethernet |
MAC Addr | The physical address of the line |
IP Addr | The IP address for this host |
Subnet Mask | The IP subnet mask for this host |
Primary Gateway | The primary gateway for this line |
RDP | The Router Discovery Protocol status
|
Target State | The desired line state:
|
Operational Status | The operational status for the line:
|
Duplex Mode | The duplex mode for this line
|
To view the information for all Fast Ethernet lines, enter the lsethlns command. The system lists summary information for all Fast Ethernet lines:
=======================================================================
Ether Lines (lsethlns)
=======================================================================
Line IP Address Subnet Mask Status Gateway Addr
====== =============== =============== ================ ===============
9.1 10.15.26.97 255.255.255.0 active 10.15.26.1
9.2 10.15.26.98 255.255.255.0 active 10.15.26.1
9.3 10.15.26.99 255.255.255.0 active 10.15.26.1
| Displayed Information | Description |
|---|---|
Line | The slot and line number for the Fast Ethernet line |
IP Address | The IP address for the Fast Ethernet line |
Subnet Mask | The IP address mask for the Fast Ethernet line |
Status | The operational status for the line:
|
Gateway Addr | The primary IP gateway for this line |
To add a Fast Ethernet line, follow these steps:
The following example adds a Fast Ethernet line to slot 9 line 2 with an IP address of 10.15.26.98, a gateway of 10.15.26.1, a target state of active, RDP disabled, a subnet mask of 255.255.255.0, and full duplex mode:
addethln 9.2 10.15.26.98 10.15.26.1 1 1 255.255.255.0 2
Step 2 Add other Fast Ethernet lines, as necessary.
Step 3 Verify the configuration using the lsethlns command.
The system displays the line configuration.
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Warning Changing a Fast Ethernet line interrupts service to a large number of users. Perform this operation during light traffic periods or in a pre-arranged maintenance window. |
To change the configuration of a Fast Ethernet line, enter the chethln command as described in the "chethln" section. For example, the following command enables RDP but leaves other parameters unchanged on Fast Ethernet line 1 in slot 9:
chethln 9.1 # 2
The system enables RDP on the specified line.
To delete Fast Ethernet lines, enter the delethln command, specifying the slot and line number of the SCC. Valid values for the slot number of the SCC are either 9 or 10. Valid values for the Fast Ethernet line is a number from 1 to 4.
The system deletes the specified line. The following example deletes Fast Ethernet line 1 in slot 9:
delethln 9.1
To enable a Fast Ethernet, enter the upethln command, specifying the slot and line number of the SCC (slot.line). The system enables the Ethernet line. The corresponding front panel ACT LED changes to green.
The following example enables Fast Ethernet line 1 in slot 9:
upethln 9.1
To disable the a Fast Ethernet, enter the dnethln command, specifying the slot and line number of the SCC (slot.line). The system disables the Ethernet line. The corresponding front panel ACT LED changes to red.
The following example disables Fast Ethernet line 1 in slot 9:
dnethln 9.1
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Posted: Tue May 23 21:36:07 PDT 2000
Copyright 1989 - 2000©Cisco Systems Inc.