No relevant resource is found in the selected language.

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. Read our privacy policy>Search

Reminder

To have a better experience, please upgrade your IE browser.

upgrade

NE40E-M2 V800R010C10SPC500 Configuration Guide - WAN Access 01

This is NE40E-M2 V800R010C10SPC500 Configuration Guide - WAN Access
Rate and give feedback:
Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Configuring a CPOS Interface

Configuring a CPOS Interface

Before you configure a channelized packet over SONET/SDH (CPOS) interface, familiarize yourself with the usage scenario, complete the pre-configuration tasks, and obtain the configuration procedure for the configuration. Here, SDH stands for synchronous digital hierarchy.

Usage Scenario

Before you use the serial interfaces formed by the E1 channels of a CPOS interface to transmit packets, configure the physical attributes and E1 channels of the CPOS interface.

Pre-configuration Tasks

Before configuring a CPOS interface, power on the device and ensure that it is working properly.

Configuration Procedure

Perform one or more of the following configurations as required.

Configuring the Working Mode of a CPOS Interface

A CPOS interface can work in either clear channel mode or channelized mode. Synchronous serial interfaces with different transmission rates can be generated in the two modes to meet different bandwidth requirements of services.

Context

If a CPOS interface works in clear channel mode, synchronous serial interfaces with higher transmission rates can be generated, so that the CPOS interface can provide sufficient bandwidth for service bearer.

If a CPOS interface works in channelized mode, the E1 channels of the CPOS interface can generate synchronous serial interfaces with different transmission rates when they work in different modes:
  • In clear channel mode, an E1 channel functions as a synchronous serial interface without timeslot division and with a transmission rate of 2.048 Mbit/s.

  • In channelized mode, an E1 channel is divided into 32 timeslots numbered from 0 to 31. Timeslots 1 to 31 can be randomly bundled to generate logical channels with transmission rates of N x 64 kbit/s.

Procedure

  • Configure a CPOS interface to work in channelized mode.
    • Configure an E1 channel of the CPOS interface to work in clear channel mode so that a trunk serial interface is generated.

      1. Run system-view

        The system view is displayed.

      2. Run controller cpos cpos-number

        The CPOS interface view is displayed.

      3. Run e1 e1-number unframed

        The specified E1 channel is configured to work in clear channel mode, and a serial interface with a transmission rate of 2.048 Mbit/s is created.

        By default, an E1 channel works in channelized mode.

        This command is supported only on the Admin-VS.

        After the serial interface is created, you can run the interface serial cpos-number/e1-number:0 command to enter the serial interface view.

      4. Run commit

        The configuration is committed.

    • Configure an E1 channel of a CPOS interface to work in channelized mode so that a trunk serial interface in channelized mode can be generated.

      1. Run system-view

        The system view is displayed.

      2. Run controller cpos cpos-number

        The CPOS interface view is displayed.

      3. Run e1 e1-number channel-set set-number timeslot-list

        The specified timeslots of the specified E1 channel are bundled to generate a serial interface with a transmission rate of N x 64 kbit/s. N indicates the number of bundled timeslots.

        This command is supported only on the Admin-VS.

        After the serial interface is configured, you can run the interface serial cpos-number/e1-number:set-number command to enter the serial interface view.

      4. Run commit

        The configuration is committed.

  • Configure a CPOS interface to work in clear channel mode.
    1. Run system-view

      The system view is displayed.

    2. Run controller cpos cpos-number

      The CPOS interface view is displayed.

    3. Run using vc4

      The CPOS interface is configured to work in clear channel mode, and a synchronous serial interface is created on the CPOS interface. The synchronous serial interface transmits data at 150.336 Mbit/s, without timeslot division.

      After the synchronous serial interface is created, you can run the interface serial cpos-number/0:0 command to enter the serial interface view.

    4. Run commit

      The configuration is committed.

Configuring the Clock Mode for a CPOS Interface

A CPOS interface works in either master clock mode or slave clock mode. You can configure the clock mode for a CPOS interface.

Context

A CPOS interface supports the following clock modes:

  • Master clock mode: uses internal clock signals.

  • Slave clock mode: uses line clock signals.

When a CPOS interface is connected to an SDH device, configure the CPOS interface to work in slave clock mode because the precision of the clock in the SDH network is higher than the precision of the internal clock source of the CPOS interface.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run controller cpos cpos-number

    The CPOS interface view is displayed.

  3. Run clock { master | slave }

    A clock mode is configured for the CPOS interface.

  4. Run commit

    The configuration is committed.

Configuring the Working Modes for the E1 Channels of a CPOS Interface

This section describes how to configure the working modes for the E1 channels of a channelized packet over SONET/SDH (CPOS) interface. Here, SONET stands for synchronous optical network, and SDH stands for synchronous digital hierarchy.

Context

The E1 channels of a CPOS interface can form serial interfaces with different transmission rates when they work in different modes:
  • In clear channel mode, an E1 channel functions as a serial interface without timeslot division and with a transmission rate of 2.048 Mbit/s.

  • In channelized mode, an E1 channel is divided into 32 timeslots numbered from 0 to 31. Timeslots 1 to 31 can be randomly bundled to form logical channels with transmission rates of N x 64 kbit/s.

Procedure

  • Create a serial interface in clear channel mode.

    1. Run system-view

      The system view is displayed.

    2. Run controller cpos cpos-number

      The CPOS interface view is displayed.

    3. Run e1 e1-number unframed

      The specified E1 channel is configured to work in clear channel mode, and a serial interface with a transmission rate of 2.048 Mbit/s is created.

      By default, an E1 channel works in channelized mode.

      After the serial interface is created, you can run the interface serial cpos-number/e1-number:0 command to enter the serial interface view.

    4. Run commit

      The configuration is committed.

  • Create a serial interface in channelized mode.

    1. Run system-view

      The system view is displayed.

    2. Run controller cpos cpos-number

      The CPOS interface view is displayed.

    3. Run e1 e1-number channel-set set-number timeslot-list

      The specified timeslots of the specified E1 channel are bundled to form a serial interface with a transmission rate of N x 64 kbit/s. N indicates the number of bundled timeslots.

      After the serial interface is configured, you can run the interface serial cpos-number/e1-number:set-number command to enter the serial interface view.

    4. Run commit

      The configuration is committed.

Configuring Overhead Bytes for a CPOS Interface

SDH provides a variety of overhead bytes. You can configure overhead bytes for CPOS interfaces to implement monitoring at different levels.

Context

SDH provides a variety of overhead bytes, which perform the monitoring function of different levels.

  • C2, the path signal label byte, is contained in the higher-order path overhead. C2 is used to specify the multiplexing structure and the attributes of the information payload in a VC frame.
  • J0, the regenerator section trace byte, is contained in the section overhead. J0 is used to check the continuity between two ports at the section layer.
  • J1, the higher-order VC-N path trace byte, is used to check the continuity between two ports at the path layer.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run controller cpos cpos-number

    The CPOS interface view is displayed.

  3. Perform the following commands as required.

    • To configure the regenerator section trace byte J0, run:

      flag j0 sdh j0
    • To configure the path trace byte J1, run:

      flag j1 j1
    • To configure path signal label byte C2, run:

      flag c2 c2

    C2, J0, and J1 of the receiver must be the same as those of the transmitter; otherwise, an alarm is generated.

  4. Run commit

    The configuration is committed.

Configuring the Mapping Mode for the E1 Channels of a CPOS Interface

CPOS interfaces support three E1 channel mapping modes: a-mode, h-mode, and l-mode.

Context

Different vendors' devices have different number calculation formulas for multiplexing CPOS E1 to STM-1.

To enable a device to interwork with other vendors' devices using CPOS interfaces, you must ensure that the E1 channel mapping mode on the device is the same as that on other vendors' devices.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run controller cpos cpos-number

    The CPOS interface view is displayed.

  3. Run mapping-mode { a-mode | h-mode | l-mode }

    An E1 channel mapping mode is configured for the CPOS interface.

    Before configuring the E1 channel mapping mode of a CPOS interface, ensure that no E1 channel is created on the CPOS interface.

    • a-mode:

      Configures the Alcatel mode (a-mode) as the E1 channel mapping mode of a CPOS interface. This mode applies when the E1 channel mapping mode of the interconnected device is the Alcatel mode. In this mode, E1 channel number = (TUG-3 number – 1) x 21 + TUG-2 number + (TU-12 number – 1) x 7.

    • h-mode:

      Configures the Huawei mode (h-mode) as the E1 channel mapping mode of a CPOS interface. This mode applies when the E1 channel mapping mode of the interconnected device is the Huawei mode. In this mode, E1 channel number = TUG-3 number + (TUG-2 number – 1) x 3 + (TU-12 number – 1) x 21.

    • l-mode:

      Configures the Lucent mode (l-mode) as the E1 channel mapping mode of a CPOS interface. This mode applies when the E1 channel mapping mode of the interconnected device is the Lucent mode. In this mode, E1 channel number = (TUG-3 number – 1) × 21 + (TUG-2 number – 1) x 3 + TU-12 number

    NOTE:
    The numbers listed in the preceding formula stand for the positions in a VC-4 frame. The TUG-3 number ranges from 1 to 3; the TUG-2 number ranges from 1 to 7; the TU-12 number ranges from 1 to 3.

  4. Run commit

    The configuration is committed.

Configuring the Clock Mode for the E1 Channels of a CPOS Interface

An E1 channel works in either master clock mode or slave clock mode.

Context

The clock modes of different E1 channels on the same CPOS interface are independent of each other.

When CPOS interfaces on two devices are directly connected, one E1 channel must be configured to work in master clock mode and use internal clock signals, and the other E1 channel must be configured to work in slave clock mode and use line clock signals.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run controller cpos cpos-number

    The CPOS interface view is displayed.

  3. Run e1 e1-number set clock { master | slave }

    A clock mode is configured for the E1 channel.

  4. Run commit

    The configuration is committed.

Configuring the Frame Format for the E1 Channels of a CPOS Interface

E1 channels support the frame format with a 4-bit CRC code.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run controller cpos cpos-number

    The CPOS interface view is displayed.

  3. Run e1 e1-number set frame-format { crc4 | no-crc4 }

    A frame format is configured for the E1 channel.

    The frame format of the E1 channel must be the same on the local and remote devices.

  4. Run commit

    The configuration is committed.

Configuring the Loopback Function for the E1 Channels of a CPOS Interface

You can enable the loopback function on an interface to check whether the interface or the link works properly.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run controller cpos cpos-number

    The CPOS interface view is displayed.

  3. Run e1 e1-number set loopback { local | remote } [ autoclear period hold-time ]

    A loopback mode is configured for the E1 channel.

    NOTE:
    • To enable local loopback for an E1 channel, the channel must work in master clock mode.
    • To enable remote loopback for an E1 channel, the channel must work in slave clock mode.

  4. Run commit

    The configuration is committed.

Configuring the Loopback Function for a CPOS Interface

This section describes how to configure the loopback function on a channelized packet over SONET/SDH (CPOS) interface. Here, SONET stands for synchronous optical network, and SDH stands for synchronous digital hierarchy. The loopback function is used to check interface or cable status when devices are malfunctioning and must be disabled when devices are working properly.

Context

The loopback function has two types:
  • Local loopback: is used to locate a system fault.
  • Remote loopback: is used to locate a link fault or test the quality of a link.
NOTE:
  • To enable local loopback on a CPOS interface, ensure that the clock of the CPOS interface works in master mode.

This configuration process is supported only on the Admin-VS.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run controller cpos cpos-number

    The CPOS interface view is displayed.

  3. Run loopback { local | remote } [ autoclear period hold-time ]

    The loopback function is enabled on the CPOS interface.

    To enable the CPOS interface to delete the loopback configuration after a specified period, specify autoclear period hold-time in the command. This function takes effect when loopback is enabled. After the time specified by hold-time elapses, the loopback configuration is automatically deleted.

    By default, the loopback function is disabled on a CPOS interface.

  4. Run commit

    The configuration is committed.

Verifying the CPOS Interface Configuration

After you configure a channelized packet over SONET/SDH (CPOS) interface, you can check the clock mode, frame format, overhead byte, and administrative unit group (AUG) multiplexing path of the interface and the clock mode and frame format of its E1 channels. Here, SONET stands for synchronous optical network, and SDH stands for synchronous digital hierarchy.

Prerequisites

A CPOS interface has been configured.

Procedure

  • Run the display interface serial [ interface-number ] command to check the status and statistics of a serial interface.
  • Run the display controller cpos [ cpos-number ] command to check the status and configurations of a CPOS interface.

Example

Run the display interface serial command. The command output displays the status and statistics of a specified serial interface.
<HUAWEI> display interface serial 0/1/0:2
Serial0/1/0:2 current state : UP (ifindex: 292)
Line protocol current state : UP 
Description:
Route Port,The Maximum Transmit Unit is 1500, Hold timer is 10(sec)
Derived from E1 0/1/0, Timeslot(s) Used: 1-31, baudrate is 1984000 bps
Internet protocol processing : disabled
Link layer protocol is PPP
LCP opened, MP opened
CRC: CRC-32
Scramble disabled
Current system time: 2013-08-07 10:09:12
Statistics last cleared:2013-08-07 09:41:29
  Traffic statistics:
    Last 300 seconds input rate 61 bits/sec, 0 packets/sec            
    Last 300 seconds output rate 61 bits/sec, 0 packets/sec           
    Input: 332 packets, 12764 bytes                                   
    Input error: 0 shortpackets, 0 longpackets, 0 CRC, 0 lostpackets  
    Output: 332 packets, 12800 bytes                                  
    Output error: 0 lostpackets                                       
    Output error: 0 overrunpackets, 0 underrunpackets   
    Last 300 seconds input utility rate:  0.01%                       
    Last 300 seconds output utility rate: 0.01%              
Run the display controller cpos command. The command output shows the status and configurations of the specified CPOS interface.
HUAWEI> display controller cpos 0/1/0
Cpos0/1/0 current state : UP (ifindex: 40)
Description:
The Vendor PN is FTLF8519P2BNL-HW
The Vendor Name is FINISAR CORP.
Port BW: 155M, Transceiver max BW: 1G, Transceiver Mode: MultiMode
WaveLength: 850nm, Transmission Distance: 500m
Rx Optical Power:  -6.02dBm, normal range: [-16.989,  0.000]dBm
Tx Optical Power:  -5.49dBm, normal range: [-9.500,  0.000]dBm
Physical layer is Packet Over SDH
clock master, Multiplex AU-4, loopback none
TX:Flag J0: "NetEngine       ",
   Flag J1: "NetEngine       ",
   Flag C2: 2(0x2)
RX:Flag J0: "NetEngine       ",
   Flag J1: "NetEngine       ",
   Flag C2: 2(0x2)
section layer:
    alarm: none
    error: B1 0
line layer:
    alarm: none
    error: B2 0 REI 0
path layer:
    alarm: none
    error: B3 0 REI 0
Download
Updated: 2019-01-02

Document ID: EDOC1100058399

Views: 13507

Downloads: 37

Average rating:
This Document Applies to these Products
Related Version
Related Documents
Share
Previous Next