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Configuration Guide - Network Management and Monitoring

CloudEngine 8800, 7800, 6800, and 5800 V200R005C10

This document describes the configurations of Network Management and Monitoring, including SNMP, RMON, NETCONF, OpenFlow, LLDP, NQA, Mirroring, Packet Capture, Packet Trace, Path and Connectivity Detection Configuration, NetStream, sFlow, and iPCA.
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Establishing the Configuration Task

Establishing the Configuration Task

Usage Scenario

Based on IP FPM, iPCA can measure the performance of IP networks.

The iPCA end-to-end performance measurement function supported by the switch includes the continual and on-demand modes. The two modes have the following difference:
  • Continual measurement: To detect network performance degradation in a timely manner, use this mode. This mode displays continual network running status.
  • On-demand measurement: If you detect that network performance degrades or you want to monitor the performance of a specified service flow, use this mode. This mode displays detailed performance statistics in recent time.

The packet loss and delay statistics obtained from iPCA end-to-end measurement are the basis for network operation and maintenance. You can diagnose network faults based on the statistics and adjust services in real time, to ensure network reliability and improve network use experience.


Before configuring iPCA end-to-end performance measurement, complete the following tasks:
  • Configuring static routes or routing protocols to ensure network connectivity between devices
  • Configuring the Network Time Protocol (NTP) or 1588v2 to synchronize all clocks on networks
    • Most switches support the NTP protocol. An iPCA measurement interval is usually several seconds. The precision of NTP, 50 ms, can ensure the accuracy of measurement result. For details about NTP, see NTP Configuration.

    • 1588v2 is a precise network clock synchronization protocol. It implements submicrosecond-level time synchronization, but has a high cost. For details about 1588v2, see 1588v2 (PTP) Configuration.

    • If 1588v2 has been deployed on a network, it is the best choice for periodic time synchronization in iPCA.

    • To implement unidirectional delay measurement, configure the precise time synchronization protocol, 1588v2.

Data Plan

Before configuring iPCA end-to-end performance measurement, prepare the data in Table 16-6.
Table 16-6 Data preparation




MCP ID, (optional) UDP port number, (optional) authentication mode and password, measurement instance, (optional) instance description, DCP ID included in the measurement instance


DCP ID, (optional) color bit for packet loss measurement, (optional) color bit for delay measurement, (optional) measurement interval, target flow characteristics, target flow direction, TLP ID and role, measurement duration

Configuration Process

Configuring the MCP and Configuring the DCP can be performed in any sequence. The parameter settings on MCP and DCPs must be the same.

Updated: 2019-04-20

Document ID: EDOC1100075365

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