How do I collect statistics?
Purpose
NSP can collect LSP, LSP path, IP interface, and MPLS interface statistics. This is accomplished using GRPC from the node. NSP calculates a rolling average over a number of periods and uses data such as rising/falling thresholds and number of periods to determine when to trigger potential LSP reroute actions.
Note: For RSVP and SR-TE LSPs that originate on 7250 IXR nodes, the NSP deployment requires the Flow Collector function for statistics collection. The Estimated Bitrate parameter for flow collection in this case must be set to a value of '5 min'.
Note: When collecting LSP statistics on 7705 nodes, a 15 minute averaging period will be in effect. 7705 nodes only support the collection of RSVP LSP statistics. SR-TE LSP statistics collection is not supported.
Steps
1 |
Using the PATCH /sdn/api/v4/nsp/configuration/traffic-data-collection API call, set 'enabled' to true. |
2 |
If collecting statistics on 7705 nodes - which do not support GRPC - you must perform one of more of the following to enable MIB entry policies, which will allow for statistics collection using SNMP:
Note: Enabling MIB entry policies for other nodes - even those that support GRPC - will allow them to have their statistics collected using SNMP. |
3 |
If collecting LSP statistics, perform the following:
End of steps |
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