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NE20E-S2 V800R010C10SPC500 Configuration Guide - System Management 01

This is NE20E-S2 V800R010C10SPC500 Configuration Guide - System Management
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Licensing Requirements and Limitations for 1588 ACR--S2E

Licensing Requirements and Limitations for 1588 ACR--S2E

Licensing Requirements

This feature is a basic feature and is not under license control.

Restrictions and Guidelines

Restrictions

Guidelines

Impact

1588v2 ACR has the following requirements for the intermediate network:
  • The PDV of the intermediate network does not exceed 16 ms.
  • When the intermediate network is a PSN, G.8261-defined scenarios are supported, the PLR must be less than 0.5 percent, the QoS must have the highest priority, the number of hops must be less than 10 (10 NEs), and the proportion of long-term traffic must be less than 80 percent.
  • When the intermediate network is an SDH, VC4 instead of VC12 and VC3 encapsulation is required. The 1588v2 ACR packets can go through the SDH network only once.
  • When the intermediate network is a microwave network, packet microwave is required, TDM microwave is similar to SDH, QoS has the highest priority, the microwave bandwidth must be greater than 100M, the number of hops must be 2 or less (3 NEs), and the proportion of long-term traffic must be less than 80 percent.

Properly plan the 1588 ACR clock synchronization network.

1588 ACR frequency synchronization performance is affected.

1588ACR server and 1588v2 Layer 2 unicast encapsulation cannot be used in mix. When the local IP address of 1588 ACR is consistent with that for 15882 DIP, 1588 ACR packets are incorrectly identified as 1588v2 packets for processing.

Properly plan service configuration. Do not deploy the 1588 ACR server and 1588v2 Layer 3 unicast encapsulation at the same time.

If 1588 ACR packets go through an interface configured with 1588v2 Layer 3 unicast, the 1588 ACR packets may be incorrectly identified as 1588v2 packets. As a result, the 1588 ACR client and server cannot establish negotiation.

1588 ACR is not supported in virtual access scenarios.

None

1588 ACR is not supported.

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Updated: 2019-01-02

Document ID: EDOC1100055400

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