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Configuration Guide - Reliability

S1720, S2700, S5700, and S6720 V200R010C00

This document describes the configuration of BFD, DLDP, VRRP, SmartLink, CFM, EFM, Y.1731 and MAC swap loopback to ensure reliability on the device.
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Configuring Two-way Frame Delay Measurement

Configuring Two-way Frame Delay Measurement

Context

  • To measure the two-way frame delay at a time or a specific number of times, use the on-demand mode.

  • To measure the two-way frame delay periodically, use the proactive mode.

NOTE:

By default, the S2750, S2720, S5700LI, S5700S-LI, S5720LI, S5720S-LI, S1720GW-E, S1720GWR-E, S1720GW, S1720GWR, S5710-X-LI, S5720SI, and S5720S-SI do not trust any packet priorities. Before running the packet-priority command to configure the 802.1p priority of 802.1ag packets in the MA, run the trust command to configure the priority to be trusted.

Procedure

  • Configure on-demand two-way frame delay measurement.

    1. Perform the following operations on the MEP and RMEP.

      1. Run:

        system-view

        The system view is displayed.

      2. Run:

        cfm md md-name

        The MD view is displayed.

      3. Run:

        ma ma-name

        The MA view is displayed.

      4. Run:

        map vlan vlan-id

        The MA is bound to a VLAN.

      5. Run:

        mep mep-id mep-id interface interface-type interface-number { inward | outward }

        The MEP is configured.

      6. Run:

        remote-mep mep-id mep-id

        The remote MEP ID is configured.

      7. Run:

        mep ccm-send enable

        The CCM transmission function is enabled.

      8. Run:

        remote-mep ccm-receive [ mep-id mep-id ] enable

        The CCM reception function is enabled.

      9. (Optional) Run:

        delay-measure two-way threshold threshold-value

        The alarm threshold for two-way frame delay measurement is set.

    2. On the receiver RMEP, run:

      delay-measure two-way receive mep mep-id

      The RMEP is enabled to receive DMMs.

      By default, the RMEP in an MA is not enabled to receive DMMs.

    3. On the initiator MEP, run:

      delay-measure two-way send mep mep-id { mac mac-address | remote-mep mep-id } interval { 1000 | 10000 } count count-value

      On-demand two-way frame delay measurement is configured.

      By default, on-demand two-way frame delay measurement is not configured in an MA.

      VLAN-specific two-way frame delay measurement is implemented based on an RMEP ID or destination MAC address:
      • If the local MEP has not learnt the MAC address of the RMEP, specify the RMEP destination MAC address before implementing two-way frame delay measurement.

      • If the local MEP has learnt the MAC address of the RMEP, specify the RMEP ID before implementing two-way frame delay measurement.

  • Configure proactive two-way frame delay measurement.

    1. Perform the following operations on the MEP and RMEP.

      1. Run:

        system-view

        The system view is displayed.

      2. Run:

        cfm md md-name

        The MD view is displayed.

      3. Run:

        ma ma-name

        The MA view is displayed.

      4. Run:

        map vlan vlan-id

        The MA is bound to a VLAN.

      5. Run:

        mep mep-id

        The MEP is configured.

      6. Run:

        remote-mep mep-id mep-id

        The remote MEP ID is configured.

      7. Run:

        mep ccm-send enable

        The CCM transmission function is enabled.

      8. Run:

        remote-mep ccm-receive [ mep-id mep-id ] enable

        The CCM reception function is enabled.

      9. (Optional) Run:

        delay-measure two-way threshold threshold-value

        The alarm threshold for two-way frame delay measurement is set.

    2. On the receiver RMEP, run:

      delay-measure two-way receive mep mep-id

      The RMEP is enabled to receive DMMs.

      By default, the RMEP in an MA is not enabled to receive DMMs.

    3. On the initiator MEP, run:

      delay-measure two-way continual send mep mep-id { mac mac-address | remote-mep mep-id } interval 30000

      Proactive two-way frame delay measurement is configured.

      By default, proactive two-way frame delay measurement is not configured in an MA.

      VLAN-specific two-way frame delay measurement is implemented based on an RMEP ID or destination MAC address:
      • If the local MEP has not learnt the MAC address of the RMEP, specify the RMEP destination MAC address before implementing two-way frame delay measurement.

      • If the local MEP has learnt the MAC address of the RMEP, specify the RMEP ID before implementing two-way frame delay measurement.

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Updated: 2019-08-21

Document ID: EDOC1000141941

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