Bidirectional Forwarding Detection Management Information Base draft-ietf-bfd-mib-00.txt

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Bidirectional Forwarding Detection Management
Information Basedraft-ietf-bfd-mib-00.txt
Thomas D. Nadeau Zafar Ali
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History of Changes

• Submitted individual submission based on
  draft-katz-ward-bfd-01.txt.
• Revised submission based on draft-katz-ward-bfd-02
  .txt
• Published revised submission as a WG document

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BFD MIB Structure

• General Variables
• The General Variables are used to identify
  parameters that are global to the BFD process.
• Session Table
• The session table is used to identify a BFD
  session between a pair of nodes.
• Session Performance Table
• The session performance table is used for
  collecting BFD performance counts on a per
  session basis.
• Session Mapping Table
• Session Mapping Table maps the complex indexing
  of the BFD sessions to the flat BFD Index used
  in the BFD Session Table

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BFD Scalar Variables

• BFD Admin Status object
• BFD Operational Status object
• BFD Version Number object

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BFD Session Table Entry

• Describes BFD session configuration for entire
  box
• Includes applications using BFD (I.e. MPLS)
• Provides a simple, flat indexing that can be
  reverse indexed using mapping table.

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Session Performance Table

• Per Session
• Packet In Count
• Packet Out Count
• Number of times session flapped
• Session down time
• Diag code for last session down event
• Other Misc. session stats

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Session Mapping Table

• Session Mapping Index, providing mapping between
  indexes and the BfdSessTable.
• Supports indexing using
• bfdSessApplicationId
• bfdSessDiscriminator
• bfdSessAddrType
• bfdSessAddr.

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Notifications

• Ability to enable/ disable Session Notifications
• Notifications for up and down state
  transition

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Next Steps

• Revise MIB to make it consistent with
  draft-ietf-bfd-base-00.txt.
• Evaluate impact of other WG documents and update
  MIB accordingly.
• Will request for WG last call on next revised
  version (published after this meeting).
• Need early MIB doctor review.
• Working towards WG Goal
• Submit BFD MIB to the IESG to be considered as
  Proposed Standard by November 2004.