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CLI-based Configuration Guide - Reliability

AR100, AR120, AR160, AR1200, AR2200, AR3200, and AR3600 V300R003

This document provides guidance for configuring reliability services, including interface backup, BFD, VRRP, and EFM.
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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).
Creating an HSB Service

Creating an HSB Service

Context

An HSB service establishes an HSB channel for transmitting packets of other services and maintains the link status by notifying the HSB group of the faulty link.

An HSB service provides the following functions:
  • Establishing an HSB channel: A TCP channel is established for sending HSB packets by setting the IP addresses and port numbers of the local and peer devices. The HSB service provides packet sending and receiving for other services and notifies link status changes.
  • Maintaining the link status of the HSB channel: HSB packets are sent and retransmitted to prevent long TCP interruption that is not detected by the protocol stack. If a device does not receive an HSB packet from the peer device within the period (retransmission interval x retransmission times), the local device receives a message indicating the exception and then re-establishes a channel to the peer.

After the HSB service configuration is complete, HSB channel parameters cannot be modified directly. To modify these parameters, delete the HSB service first and then reconfigure these parameters. The configured parameters take effect only after the HSB function is enabled.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run hsb-service service-index

    An HSB service is created and the HSB service view is displayed.

    By default, no HSB service is created.

  3. (Optional) Run key cipher key-string

    The key used by the HSB devices is configured.

    By default, the key used by HSB devices is not configured.
    NOTE:
    • Configuring a shared key for HSB devices is not recommended in a secure network environment, as this configuration will degrade the HSB performance.
    • The key command must be configured before the service-ip-port command. Otherwise, the key configuration will fail.
    • The two HSB devices must be configured with the same shared key. Inconsistent keys on two ends will cause frequent interruption of the HSB channel.

  4. Run service-ip-port local-ip local-ip-address peer-ip peer-ip-address local-data-port local-port peer-data-port peer-port

    An HSB channel is established.

    By default, no IP address or port number is configured for an HSB service.

    The channel parameters must be set at the local device and the peer device. The destination IP address and port number of the local device must be the same as the IP address and port number of the peer device.

  5. (Optional) Run service-keep-alive detect retransmit retransmit-times interval interval-value

    The retransmission times and interval of HSB packets are set.

    The default number of retransmission times is 5, and the default retransmission interval is 3 seconds.

    NOTE:
    • By default, the HSB packet retransmission interval is 3 seconds and retransmission times is 5.
    • The HSB packet parameters, including retransmission interval and retransmission times, must be set the same on both ends.

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Updated: 2019-03-06

Document ID: EDOC1100069338

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