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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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Overview of iPCA

Overview of iPCA


Packet Conservation Algorithm for Internet (iPCA) is a performance measurement technology for IP networks based on IP Flow Performance Monitor (FPM). It directly marks service packets to measure the packet loss rate and delay of IP networks, helping network administrators quickly and accurately locate network faults.


In the all-IP era, many services sensitive to packet loss, such as voice and video services, are transmitted through an IP network. Therefore, end-to-end performance diagnosis and high-performance quality measurement are required. The widely used technologies, such as Network Quality Analysis (NQA) and Y.1731, can meet network monitoring and measurement requirements, but bring the following problems:

  • Y.1731 applies to only Layer 2 Ethernet networks, so it does not support performance statistics collection on Layer 3 networks.
  • NQA collects statistics on service packets by simulating or inserting detection flows into service flows. The detection flows increase loads on devices and cannot reflect the real status of user services.
  • Y.1731 and NQA cannot collect performance statistics on multipoint-to-multipoint networks or the end-to-end network between different network layers. They cannot measure performance of the multi-path IP networks.

iPCA is a universal IP network performance measurement solution. It effectively addresses the preceding problems. iPCA is important for network fault diagnosis and service statistics collection.

iPCA has the following advantages:
  • Applies to both Layer 2 and Layer 3 networks.
  • Directly measures service packets. The measurement data reflects actual performance of IP networks.
  • Monitors service changes on the IP network (point-to-point, point-to-multipoint, multipoint-to-multipoint, dual homing, and load balancing scenarios) and reflects service running status.
Updated: 2019-04-20

Document ID: EDOC1100075365

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