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PSAMP MIB Status

PSAMP MIB Status. Managed Objects for Packet Sampling A Status Report Thomas Dietz dietz@netlab.nec.de Benoit Claise bclaise@cisco.com. Changes from Previous Version. Changed serveral sampling method parameters to improve the alignment with the sample tech draft

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PSAMP MIB Status

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  1. PSAMP MIB Status Managed Objects forPacket SamplingA Status Report Thomas Dietz dietz@netlab.nec.de Benoit Claise bclaise@cisco.com

  2. Changes from Previous Version • Changed serveral sampling method parameters to improve the alignment with the sample tech draft • Improved several sampling/filtering methods (some of them are still placeholders) • Created new table to link instance with sampling/filtering methods • Restricted MIB names to 32 characters

  3. MIB Structure • Currently there are 4 groups of objects • The sampling methods group • Defines all sampling methods and their parameters • The filtering methods group • Defines all filtering methods and their parameters • The reporting group • Defines the collectors the device reports the packets to • The instance group • Links sampling/filtering methods, their parameters and the collectors together

  4. The sampling/filtering group • Each sampling/filtering method is represented by its capabilities and a parameter table • Currently there are 7 sampling methods and 3 filtering methods defined • The parameter table contains all parameter sets currenly used on the device • The MIB tree for a method must only be implemented if the method is supported by the device

  5. The Reporting Group • Contains the addresses of the collectors the device reports to in the collector table • Groups collectors together in the collector group table • The device can report the same sampled packets to multiple collectors • Must be present in every device

  6. The Instance Group • Contains the 2 tables that are vital for the MIB • The instance table contains the basic information for all the sampling processes applied to the device • The method chain table links the instance to the sampling/filtering methods and their parameter sets • These 2 tables must be present on any device

  7. Table Summary

  8. Linking Everything Together psampSampCountBasedParamSetTableEntry.4 psampMethodChainEntry.2.5.1 = 1 (second index) psampMethodChainEntry.2.5.2 = 2 (second index) psampMethodChainEntry.3.5.1 = 1.3.6.1.2.1.XXX.1.1.2.3.1.10 psampMethodChainEntry.3.5.2 = 1.3.6.1.2.1.XXX.1.1.1.3.1.4 psampSampTimeBasedParamSetTableEntry.10 psampCollectorGroupEntry.1.7.5 = 7 (index) Order in which themethods are applied psampInstanceEntry.1.5 = 1 (index) psampInstanceEntry.x.5 ... psampInstanceEntry.6.5 = 7 (index of collector group)

  9. Open Issues • Some parameters for sampling/filtering methods still need to be defined • Template table must be completed and linked to instances and collectors • Observation point must be modeled • Row status objects in writable tables

  10. The End Thank you for your attention

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