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NE40E V800R010C00 Configuration Guide - System Monitor 01

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NetStream Precautions

NetStream Precautions


Preventive Measures


SR TE supports only upstream sampling for an ingress PE and downstream sampling for an egress PE. P device sampling is not supported.


In the case of downstream sampling for an ingress PE and upstream sampling for an egress PE, outbound interface information fails to be collected, or a sampling error occurs.

IPv4 private network routes and IPv6 private network routes support multi-PE load balancing. Route information is missing in the data sampled.


Route information is missing in the data sampled in multi-PE load balancing scenarios.

During the ISSU, NetStream flows are forcibly aged before the switchover, and new flows are established after the switchover. Therefore, NetStream does not take effect within a certain period of time.


Sampling flows are re-established during the ISSU, causing the NetStream function to be ineffective.

If the NetStream feature needs to be configured on a board, but the board does not support sampling data processing, you can configure a centralized sampling board that supports centralized service processing to process data.

Configure centralized sampling on a board that supports this function.

The function does not take effect.

Updated: 2018-07-12

Document ID: EDOC1100028538

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