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RFC 4276

BGP-4 Implementation Report

Pages: 97
Informational
Part 3 of 4 – Pages 30 to 67
First   Prev   Next

 Top   ToC   RFC4276 - Page 30   prevText 
3.14.  LOCAL_PREF / Section 5.1.5 [RFC4271]



   3.14.69.  LOCAL_PREF


       Functionality/Description: Included in all UPDATE messages that
       a given BGP speaker sends to the other internal peers

       RFC2119: SHALL

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



   3.14.70.  Degree of Preference


       Functionality/Description: Calculated for each external route
       based on the locally configured policy, and included when
       advertising a route to its internal peers

       RFC2119: SHALL

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



   3.14.71.  LOCAL_PREF


       Functionality/Description: Higher degree of preference MUST be
       preferred

       RFC2119: MUST

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y
 Top   ToC   RFC4276 - Page 31 
   3.14.72.  LOCAL_PREF


       Functionality/Description: Not included in UPDATE messages sent
       to external peers, except for the case of BGP Confederations
       [RFC3065]

       RFC2119: MUST NOT

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y


   3.14.73.  LOCAL_PREF


       Functionality/Description: Ignored if received from an external
       peer, except for the case of BGP Confederations [RFC3065]

       RFC2119: MUST

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



3.15.  ATOMIC_AGGREGATE / Section 5.1.6 [RFC4271]



   3.15.74.  ATOMIC_AGGREGATE


       Functionality/Description: Included if an aggregate excludes at
       least some of the AS numbers present in the AS_PATH of the
       routes that are aggregated as a result of dropping the AS_SET

       RFC2119: SHOULD

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y
 Top   ToC   RFC4276 - Page 32 
   3.15.75.  Received ATOMIC_AGGREGATE


       Functionality/Description: BGP speaker SHOULD NOT remove the
       attribute from the route when propagating it to other speakers

       RFC2119: SHOULD NOT

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



   3.15.76.  Received ATOMIC_AGGREGATE


       Functionality/Description: BGP speaker MUST NOT make any NLRI of
       that route more specific (as defined in 9.1.4)

       RFC2119: MUST NOT

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



3.16.  AGGREGATOR / Section 5.1.7 [RFC4271]



   3.16.77.  AGGREGATOR


       Functionality/Description: Included in updates which are formed
       by aggregation (see Section 9.2.2.2)

       RFC2119: MAY

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y
 Top   ToC   RFC4276 - Page 33 
   3.16.78.  AGGREGATOR


       Functionality/Description: Added by the BGP speaker performing
       route aggregation

       RFC2119: MAY

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



   3.16.79.  AGGREGATOR


       Functionality/Description: Contain local AS number and IP
       address

       RFC2119: SHALL

       Alcatel Y/N/O/Comments: Y    Default behavior.  Can be configured
                                    different from BGP ID.
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



   3.16.80.  AGGREGATOR IP Address


       Functionality/Description: The same as the BGP Identifier of the
       speaker

       RFC2119: SHOULD

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y
 Top   ToC   RFC4276 - Page 34 
3.17.  BGP Error Handling / Section 6 [RFC4271]



   3.17.81.  Error Handling


       Functionality/Description: Is your implementation compatible
       with the error handling procedures described in this section?

       RFC2119: N/A

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



   3.17.82.  Error Subcode


       Functionality/Description: Zero, if it is not specified

       RFC2119: MUST

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



3.18.  Message Header Error Handling / Section 6.1 [RFC4271]



   3.18.83.  Message Header Errors


       Functionality/Description: Indicated by sending the NOTIFICATION
       message with Error Code Message Header Error

       RFC2119: MUST

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y
 Top   ToC   RFC4276 - Page 35 
   3.18.84.  Synchronization Error


       Functionality/Description: Error Subcode MUST be set to
       Connection Not Synchronized

       RFC2119: MUST

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



   3.18.85.  Message Length


       Functionality/Description: Use the Bad Message Length Error
       Subcode to indicate an incorrect message length

       RFC2119: MUST

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



   3.18.86.  Bad Message Length


       Functionality/Description: The Data field MUST contain the
       erroneous Length field

       RFC2119: MUST

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y
 Top   ToC   RFC4276 - Page 36 
   3.18.87.  Type Field


       Functionality/Description: If the Type field of the message
       header is not recognized, then the Error Subcode MUST be set to

       Bad Message Type

       RFC2119: MUST

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



   3.18.88.  Bad Message Type


       Functionality/Description: The Data field MUST contain the
       erroneous Type field

       RFC2119: MUST

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



3.19.  OPEN Message Error Handling / Section 6.2 [RFC4271]



   3.19.89.  OPEN Message Errors


       Functionality/Description: Indicated by sending the NOTIFICATION
       message with Error Code OPEN Message Error

       RFC2119: MUST

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y
 Top   ToC   RFC4276 - Page 37 
   3.19.90.  Version Number Not Supported


       Functionality/Description: The Error Subcode MUST be set to
       Unsupported Version Number

       RFC2119: MUST

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



   3.19.91.  Unacceptable Autonomous System Field


       Functionality/Description: The Error Subcode MUST be set to Bad
       Peer AS

       RFC2119: MUST

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



   3.19.92.  Unacceptable Hold Time Error Subcode


       Functionality/Description: Used if the Hold Time field of the
       OPEN message is unacceptable

       RFC2119: MUST

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y
 Top   ToC   RFC4276 - Page 38 
   3.19.93.  Hold Time Rejection


       Functionality/Description: Values of one or two seconds

       RFC2119: MUST

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



   3.19.94.  Hold Time Rejection


       Functionality/Description: An implementation may reject any
       proposed Hold Time

       RFC2119: MAY

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: N
       NextHop Y/N/O/Comments: Y



   3.19.95.  Hold Time


       Functionality/Description: If accepted, then the negotiated
       value MUST be used

       RFC2119: MUST

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y
 Top   ToC   RFC4276 - Page 39 
   3.19.96.  Syntactically Incorrect BGP Identifier


       Functionality/Description: The Error Subcode MUST be set to Bad
       BGP Identifier

       RFC2119: MUST

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



   3.19.97.  Not Recognized Optional Parameters


       Functionality/Description: The Error Subcode MUST be set to
       Unsupported Optional Parameters

       RFC2119: MUST

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: N    We may fix this.
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



   3.19.98.  Recognized but Malformed Optional Parameters


       Functionality/Description: The Error Subcode MUST be set to 0
       (Unspecific)

       RFC2119: MUST

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: N
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y
 Top   ToC   RFC4276 - Page 40 
3.20.  UPDATE Message Error Handling / Section 6.3 [RFC4271]



   3.20.99.  UPDATE Message Errors


      Functionality/Description: Indicated by sending the
      NOTIFICATION message with Error Code UPDATE Message Error

      RFC2119: MUST

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



   3.20.100.  Too Large


       Functionality/Description: If the Withdrawn Routes Length or
       Total Attribute Length is too large, then the Error Subcode MUST
       be set to Malformed Attribute List

       RFC2119: MUST

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



   3.20.101.  Conflicting Flags


       Functionality/Description: If any recognized attribute has
       Attribute Flags that conflict with the Attribute Type Code, then
       the Error Subcode MUST be set to Attribute Flags Error

       RFC2119: MUST

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y
 Top   ToC   RFC4276 - Page 41 
   3.20.102.  Conflicting Flags


       Functionality/Description: The Data field MUST contain the
       erroneous attribute

       RFC2119: MUST

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



   3.20.103.  Conflicting Length


       Functionality/Description: If any recognized attribute has
       Attribute Length that conflicts with the expected length, then
       the Error Subcode MUST be set to Attribute Length Error

       RFC2119: MUST

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



   3.20.104.  Conflicting Length


       Functionality/Description: The Data field MUST contain the
       erroneous attribute

       RFC2119: MUST

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y
 Top   ToC   RFC4276 - Page 42 
   3.20.105.  Missing Mandatory Well-Known Attributes


       Functionality/Description: The Error Subcode MUST be set to
       Missing Well-known Attribute

       RFC2119: MUST

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



   3.20.106.  Missing Mandatory Well-Known Attributes


       Functionality/Description: The Data field MUST contain the
       Attribute Type Code of the missing well-known attribute

       RFC2119: MUST

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: N    We plan to fix this in future.
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y


   3.20.107.  Unrecognized Mandatory Well-Known Attributes


       Functionality/Description: The Error Subcode MUST be set to
       Unrecognized Well-known Attribute

       RFC2119: MUST

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: N    We set error subcode to Attribute
                                    Flags Error, but we intend to
                                    correct this soon.
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y
 Top   ToC   RFC4276 - Page 43 
   3.20.108.  Unrecognized Mandatory Well-Known Attributes


       Functionality/Description: The Data field MUST contain the
       unrecognized attribute

       RFC2119: MUST

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



   3.20.109.  Undefined ORIGIN


       Functionality/Description: The Error Sub-code MUST be set to
       Invalid Origin Attribute

       RFC2119: MUST

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



   3.20.110.  Undefined ORIGIN


       Functionality/Description: The Data field MUST contain the
       unrecognized attribute

       RFC2119: MUST

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y
 Top   ToC   RFC4276 - Page 44 
   3.20.111.  Syntactically Incorrect NEXT_HOP


       Functionality/Description: The Error Subcode MUST be set to
       Invalid NEXT_HOP Attribute

       RFC2119: MUST

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: N    Ignores the prefix in case of
                                    martian nexthop, and in case of
                                    length not equal to IPv4
                                    address-length, we send
                                    NOTIFICATION with error subcode
                                    Attribute Length error.
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



   3.20.112.  Syntactically Incorrect NEXT_HOP


       Functionality/Description: The Data field MUST contain the
       incorrect attribute

       RFC2119: MUST

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



   3.20.113.  NEXT_HOP Semantic Correctness


       Functionality/Description: NEXT_HOP is checked for semantic
       correctness against the criteria in this section

       RFC2119: MUST

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y
 Top   ToC   RFC4276 - Page 45 
   3.20.114.  NEXT_HOP Semantic Correctness


       Functionality/Description: Not be the IP address of the
       receiving speaker

       RFC2119: MUST NOT

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



   3.20.115.  NEXT_HOP Semantic Correctness


       Functionality/Description: In the case of an EBGP where the
       sender and receiver are one IP hop away from each other, either
       the IP address in the NEXT_HOP MUST be the sender's IP address
       (that is used to establish the BGP connection), or the interface
       associated with the NEXT_HOP IP address MUST share a common
       subnet with the receiving BGP speaker

       RFC2119: MUST

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



   3.20.116.  Semantically Incorrect NEXT_HOP


       Functionality/Description: Error logged

       RFC2119: SHOULD

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y
 Top   ToC   RFC4276 - Page 46 
   3.20.117.  Semantically Incorrect NEXT_HOP


       Functionality/Description: Route Ignored

       RFC2119: SHOULD

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: N
       NextHop Y/N/O/Comments: Y



   3.20.118.  Semantically Incorrect NEXT_HOP


       Functionality/Description: NOTIFICATION not sent

       RFC2119: SHOULD NOT

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



   3.20.119.  Semantically Incorrect NEXT_HOP


       Functionality/Description: Connection not closed

       RFC2119: SHOULD NOT

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



   3.20.120.  Syntactically Incorrect AS_PATH


       Functionality/Description: The Error Subcode MUST be set to
       Malformed AS_PATH

       RFC2119: MUST

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y
 Top   ToC   RFC4276 - Page 47 
   3.20.121.  First Neighbor in AS_PATH Check


       Functionality/Description: If the UPDATE message is received
       from an external peer, the local system MAY check whether the
       leftmost AS in the AS_PATH attribute is equal to the autonomous
       system number of the peer that sent the message

       RFC2119: MAY

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: N
       NextHop Y/N/O/Comments: Y



   3.20.122.  First Neighbor in AS_PATH Check


       Functionality/Description: If the check determines that this is
       not the case, the Error Subcode MUST be set to Malformed AS_PATH

       RFC2119: MUST

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: n/a
       NextHop Y/N/O/Comments: Y



   3.20.123.  Optional Attributes


       Functionality/Description: Value MUST be checked if the
       attribute is recognized

       RFC2119: MUST

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y
 Top   ToC   RFC4276 - Page 48 
   3.20.124.  Optional Attribute Error


       Functionality/Description: The attribute MUST be discarded

       RFC2119: MUST

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



   3.20.125.  Optional Attribute Error


       Functionality/Description: The Error Subcode MUST be set to
       Optional Attribute Error

       RFC2119: MUST

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: N   What exactly is optional attribute
                                   e.g., If error is flag related, we
                                   send update flag error subcode, if it
                                   is length related, we send update
                                   length error subcode.  These granular
                                   subcodes are better in terms of
                                   debugging than optional attribute
                                   error.
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y   Only optional attribute error that
                                   doesn't have a more specific error,
                                   is the version 3 to version 4 error
                                   for the atomic aggregate.  All others
                                   default to more specific error codes
                                   if implementation.



   3.20.126.  Optional Attribute Error


       Functionality/Description: The Data field MUST contain the
       attribute

       RFC2119: MUST

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y
 Top   ToC   RFC4276 - Page 49 
   3.20.127.  Duplicate Attributes


       Functionality/Description: If any attribute appears more than
       once in the UPDATE message, then the Error Subcode MUST be set
       to Malformed Attribute List

       RFC2119: MUST

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



   3.20.128.  Syntactically Incorrect NLRI Field


       Functionality/Description: The Error Subcode MUST be set to
       Invalid Network Field

       RFC2119: MUST

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



   3.20.129.  Semantically Incorrect NLRI Field


       Functionality/Description: An error SHOULD be logged locally

       RFC2119: SHOULD

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y
 Top   ToC   RFC4276 - Page 50 
   3.20.130.  Semantically Incorrect NLRI Field


       Functionality/Description: The prefix SHOULD be ignored

       RFC2119: SHOULD

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



   3.20.131.  UPDATE with no NLRI


       Functionality/Description: An UPDATE message that contains
       correct path attributes, but no NLRI, SHALL be treated as a
       valid UPDATE message

       RFC2119: SHALL

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



3.21.  NOTIFICATION Message Error Handling / Section 6.4 [RFC4271]



   3.21.132.  Error in NOTIFICATION Message


       Functionality/Description: Noticed, logged locally, and brought
       to the attention of the administration of the peer

       RFC2119: SHOULD

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: N
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y
 Top   ToC   RFC4276 - Page 51 
3.22.  Hold Timer Expired Error Handling / Section 6.5 [RFC4271]



   3.22.133.  Hold Timer Expired


       Functionality/Description: Is your implementation compatible
       with the error handling procedures described in this section?

       RFC2119: N/A

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



3.23.  Finite State Machine Error Handling / Section 6.6 [RFC4271]



   3.23.134.  Finite State Machine Errors


       Functionality/Description: Is your implementation compatible
       with the error handling procedures described in this section?

       RFC2119: N/A

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: N
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



3.24.  Cease / Section 6.7 [RFC4271]



   3.24.135.  Cease NOTIFICATION


       Functionality/Description: Used in absence of any fatal errors
       if a BGP peer chooses at any given time to close its BGP
       connection

       RFC2119: MAY

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: N    We close the TCP session without
                                    CEASE NOTIFICATION.
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y
 Top   ToC   RFC4276 - Page 52 
   3.24.136.  Cease NOTIFICATION


       Functionality/Description: Not used for specified fatal errors

       RFC2119: MUST NOT

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



   3.24.137.  Upper bound on the number of address prefixes the speaker
              is willing to accept from a neighbor


       Functionality/Description: Support by local configuration

       RFC2119: MAY

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



   3.24.138.  Upper bound on the number of address prefixes the speaker
              is willing to accept from a neighbor


       Functionality/Description: If exceeded and the BGP speaker
       decides to terminate its BGP connection, the Cease NOTIFICATION
       MUST be used

       RFC2119: MUST

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: N    We don't send CEASE but we plan to
                                    correct that soon.
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y    No termination of peers is supported
                                    We are considering support with the
                                    maximum prefix document for later
                                    releases.
 Top   ToC   RFC4276 - Page 53 
   3.24.139.  Upper bound on the number of address prefixes the speaker
              is willing to accept from a neighbor


       Functionality/Description: Log locally

       RFC2119: MAY

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



3.25.  BGP Connection Collision Detection / Section 6.8 [RFC4271]



   3.25.140.  Connection Collision


       Functionality/Description: One of the connections MUST be closed

       RFC2119: MUST

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



   3.25.141.  Receipt of an OPEN Message


       Functionality/Description: The local system MUST examine all of
       its connections that are in the OpenConfirm state

       RFC2119: MUST

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: O    We detect collision through some
                                    other implementation specific way
                                    and resolve by method specified in
                                    the document.
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y
 Top   ToC   RFC4276 - Page 54 
   3.25.142.  Receipt of an OPEN Message


       Functionality/Description: Examine connections in an OpenSent
       state if it knows the BGP Identifier of the peer by means
       outside of the protocol

       RFC2119: MAY

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



3.26.  BGP Version Negotiation / Section 7 [RFC4271]



   3.26.143.  Version Negotiation


       Functionality/Description: Multiple attempts to open a BGP
       connection, starting with the highest version number each
       supports

       RFC2119: MAY

       Alcatel Y/N/O/Comments: N    Supports only version 4
       Cisco   Y/N/O/Comments: O    We resolve it through config. If
                                    Config is for version 3, and we get
                                    version 4, OPEN will always fail.
                                    Similarly, if configed (default) is
                                    version 4 and peers configured is 3,
                                    we don't try to negotiate version 3
                                    unless we have configured it.
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: N    Supports only version 4.



   3.26.144.  Future Versions of BGP


       Functionality/Description: MUST retain the format of the OPEN
       and NOTIFICATION messages

       RFC2119: MUST

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y
 Top   ToC   RFC4276 - Page 55 
3.27.  BGP Finite State Machine (FSM) / Section 8 [RFC4271]



   3.27.145.  FSM


       Functionality/Description: Is your implementation compatible
       with the conceptual FSM described in this section?

       RFC2119: N/A

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



3.28.  Administrative Events / Section 8.1.2 [RFC4271]



   3.28.146.  Optional Session Attribute Settings


       Functionality/Description: Each event has an indication of what
       optional session attributes SHOULD be set at each stage

       RFC2119: SHOULD

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: O    Its rather vague.  We have an option
                                    Of manually starting or stopping
                                    sessions but not an option for all
                                    optional session attributes that are
                                    listed in the document.
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y    The following optional attributes
                                    are implied in this implementation:
                                    1) Automatic start, 2) Automatic
                                    Stop, 3)



   3.28.147.  Event1: ManualStart


       Functionality/Description: The PassiveTcpEstablishment attribute
       SHOULD be set to FALSE

       RFC2119: SHOULD

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y
 Top   ToC   RFC4276 - Page 56 
   3.28.148.  Event3: AutomaticStart


       Functionality/Description: The AllowAutomaticStart attribute
       SHOULD be set to TRUE

       RFC2119: SHOULD

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



   3.28.149.  Event3: AutomaticStart


       Functionality/Description: The PassiveTcpEstablishment optional
       session attribute SHOULD be set to FALSE

       RFC2119: SHOULD

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



   3.28.150.  Event3: AutomaticStart


       Functionality/Description: DampPeerOscillations SHOULD be set to
       FALSE

       RFC2119: SHOULD

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y    Don't support DampPeerOscillations
                                    attribute, so it is always FALSE.
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y
 Top   ToC   RFC4276 - Page 57 
   3.28.151.  Event4: ManualStart_with_PassiveTcpEstablishment


       Functionality/Description: The PassiveTcpEstablishment attribute
       SHOULD be set to TRUE

       RFC2119: SHOULD

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y    We wait for some fixed time before
                                    initiating OPEN.
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



   3.28.152.  Event4: ManualStart_with_PassiveTcpEstablishment


       Functionality/Description: The DampPeerOscillations attribute
       SHOULD be set to FALSE

       RFC2119: SHOULD

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y    Don't support DampPeerOscillations
                                    attribute so it is FALSE.
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: O    We don't support DampPeerOscilation
                                    attribute with a setting of off, and
                                    hence Event 4.  Future version will
                                    support Event 4



   3.28.153.  Event5: AutomaticStart_with_PassiveTcpEstablishment


       Functionality/Description: The AllowAutomaticStart attribute
       SHOULD be set to TRUE

       RFC2119: SHOULD

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y
 Top   ToC   RFC4276 - Page 58 
   3.28.154.  Event5: AutomaticStart_with_PassiveTcpEstablishment


       Functionality/Description: The PassiveTcpEstablishment attribute
       SHOULD be set to TRUE

       RFC2119: SHOULD

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



   3.28.155.  Event5: AutomaticStart_with_PassiveTcpEstablishment


       Functionality/Description: The DampPeerOscillations SHOULD be
       set to FALSE

       RFC2119: SHOULD

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y    Don't support DampPeerOscillations
                                    attribute, so always FALSE.
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: O    We don't support DampPeerOscilation
                                    attribute with a setting of off, and
                                    hence Event 5.  Future version will
                                    support Event 5



   3.28.156.  Event6: AutomaticStart_with_DampPeerOscillations


       Functionality/Description: The AllowAutomaticStart attribute
       SHOULD be set to TRUE

       RFC2119: SHOULD

       Alcatel Y/N/O/Comments: N
       Cisco   Y/N/O/Comments: O    Don't support DampPeerOscillations
                                    attribute.
       Laurel  Y/N/O/Comments: Y

       NextHop Y/N/O/Comments: Y
 Top   ToC   RFC4276 - Page 59 
   3.28.157.  Event6: AutomaticStart_with_DampPeerOscillations


       Functionality/Description: The DampPeerOscillations attribute
       SHOULD be set to TRUE

       RFC2119: SHOULD

       Alcatel Y/N/O/Comments: N
       Cisco   Y/N/O/Comments: N    Don't support DampPeerOscillations
                                    attribute.
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



   3.28.158.  Event6: AutomaticStart_with_DampPeerOscillations


       Functionality/Description: The PassiveTcpEstablishment attribute
       SHOULD be set to FALSE

       RFC2119: SHOULD

       Alcatel Y/N/O/Comments: N
       Cisco   Y/N/O/Comments: O    Don't support DampPeerOscillations
                                    attribute and hence Event6.
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



   3.28.159.  Event7:
   AutomaticStart_with_DampPeerOscillations_and_PassiveTcpEstablishment


       Functionality/Description: The AllowAutomaticStart attribute
       SHOULD be set to TRUE

       RFC2119: SHOULD

       Alcatel Y/N/O/Comments: N
       Cisco   Y/N/O/Comments: O    Don't support DampPeerOscillations
                                    attribute and hence Event7
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y
 Top   ToC   RFC4276 - Page 60 
   3.28.160.  Event7:
   AutomaticStart_with_DampPeerOscillations_and_PassiveTcpEstablishment


       Functionality/Description: The DampPeerOscillations attribute
       SHOULD be set to TRUE

       RFC2119: SHOULD

       Alcatel Y/N/O/Comments: N
       Cisco   Y/N/O/Comments: O    Don't support DampPeerOscillations
                                    attribute and hence Event7
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



   3.28.161.  Event7:
   AutomaticStart_with_DampPeerOscillations_and_PassiveTcpEstablishment


       Functionality/Description: The PassiveTcpEstablishment attribute
       SHOULD be set to TRUE

       RFC2119: SHOULD

       Alcatel Y/N/O/Comments: N
       Cisco   Y/N/O/Comments: O    Don't support DampPeerOscillations
                                    attribute and hence Event7
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



   3.28.162.  Event8: AutomaticStop


       Functionality/Description: The AllowAutomaticStop attribute
       SHOULD be TRUE

       RFC2119: SHOULD

       Alcatel Y/N/O/Comments: N
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y
 Top   ToC   RFC4276 - Page 61 
3.29.  Timer Events / Section 8.1.3 [RFC4271]



   3.29.163.  Event12: DelayOpenTimer_Expires


       Functionality/Description: DelayOpen attribute SHOULD be set to
       TRUE

       RFC2119: SHOULD

       Alcatel Y/N/O/Comments: N
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: n/a
       NextHop Y/N/O/Comments: Y



   3.29.164.  Event12: DelayOpenTimer_Expires


       Functionality/Description: DelayOpenTime attribute SHOULD be
       supported

       RFC2119: SHOULD

       Alcatel Y/N/O/Comments: N
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: n/a
       NextHop Y/N/O/Comments: Y



   3.29.165.  Event12: DelayOpenTimer_Expires


       Functionality/Description: DelayOpenTimer SHOULD be supported

       RFC2119: SHOULD

       Alcatel Y/N/O/Comments: N
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: n/a
       NextHop Y/N/O/Comments: Y
 Top   ToC   RFC4276 - Page 62 
   3.29.166.  Event13: IdleHoldTimer_Expires


       Functionality/Description: DampPeerOscillations attribute SHOULD
       be set to TRUE

       RFC2119: SHOULD

       Alcatel Y/N/O/Comments: N
       Cisco   Y/N/O/Comments: O    Don't support DampPeerOscillations
                                    attribute and hence Event13
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



   3.29.167.  Event13: IdleHoldTimer_Expires


       Functionality/Description: IdleHoldTimer SHOULD have just
       expired

       RFC2119: SHOULD

       Alcatel Y/N/O/Comments: N
       Cisco   Y/N/O/Comments: O    Don't support DampPeerOscillations
                                    attribute and hence Event13
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



3.30.  TCP Connection-Based Events / Section 8.1.4 [RFC4271]



   3.30.168.  Event14: TcpConnection_Valid


       Functionality/Description: BGP's destination port SHOULD be port
       179

       RFC2119: SHOULD

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y
 Top   ToC   RFC4276 - Page 63 
   3.30.169.  Event14: TcpConnection_Valid


       Functionality/Description: The TrackTcpState attribute SHOULD be
       set to TRUE

       RFC2119: SHOULD

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: O    GateD NGC 2.0  provides hooks for
                                    the TCP state tracking, but use of
                                    this option depends OS support.
                                    Future versions will have additional
                                    hooks.



   3.30.170.  Event15: Tcp_CR_Invalid


       Functionality/Description: BGP destination port number SHOULD be
       179

       RFC2119: SHOULD

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: O    GateD NGC 2.0  provides hooks for
                                    the TCP state tracking, but use of
                                    this option depends OS support.
                                    Future versions will have additional
                                    hooks.



3.31.  BGP Messages-Based Events / Section 8.1.5 [RFC4271]



   3.31.171.  Event19: BGPOpen


       Functionality/Description: The DelayOpen optional attribute
       SHOULD be set to FALSE

       RFC2119: SHOULD

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: n/a
       NextHop Y/N/O/Comments: Y
 Top   ToC   RFC4276 - Page 64 
   3.31.172.  Event19: BGPOpen


       Functionality/Description: The DelayOpenTimer SHOULD not be
       running

       RFC2119: SHOULD

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



   3.31.173.  Event20: BGPOpen with DelayOpenTimer Running


       Functionality/Description: The DelayOpen attribute SHOULD be set
       to TRUE

       RFC2119: SHOULD

       Alcatel Y/N/O/Comments: N    Not applicable
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: n/a
       NextHop Y/N/O/Comments: Y



   3.31.174.  Event20: BGPOpen with DelayOpenTimer Running


       Functionality/Description: The DelayOpenTimer SHOULD be running

       RFC2119: SHOULD

       Alcatel Y/N/O/Comments: N
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: n/a
       NextHop Y/N/O/Comments: Y
 Top   ToC   RFC4276 - Page 65 
   3.31.175.  Event23: OpenCollisionDump


       Functionality/Description: If the state machine is to process
       this event in Established state, the
       CollisionDetectEstablishedState optional attribute SHOULD be set
       to TRUE

       RFC2119: SHOULD

       Alcatel Y/N/O/Comments: Y    Collision detection event is logged.
       Cisco   Y/N/O/Comments: O    We always detect collision before we
                                    go to established state.
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: O    GateD NGC 2.0 does not support
                                    Collision Detection in Established
                                    state.  This option attribute  is
                                    always set to FALSE.



3.32.  FSM Definition / Section 8.2.1 [RFC4271]



   3.32.176.  FSM


       Functionality/Description: Separate FSM for each configured peer

       RFC2119: MUST

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



   3.32.177.  TCP Port 179



       Functionality/Description: A BGP implementation MUST connect to
       and listen on TCP port 179 for incoming connections in addition
       to trying to connect to peers

       RFC2119: MUST

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y
 Top   ToC   RFC4276 - Page 66 
   3.32.178.  Incoming Connections


       Functionality/Description: A state machine MUST be instantiated

       RFC2119: MUST

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



3.33.  FSM and Collision Detection / Section 8.2.1.2 [RFC4271]



   3.33.179.  Connection Collision


       Functionality/Description: The corresponding FSM for the
       connection that is closed SHOULD be disposed of

       RFC2119: SHOULD

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



3.34.  FSM Event numbers / Section 8.2.1.4 [RFC4271]



   3.34.180.  Event Numbers


       Functionality/Description: Used to provide network management
       information

       RFC2119: MAY

       Alcatel Y/N/O/Comments: Y    Not visible to operator.
       Cisco   Y/N/O/Comments: N
       Laurel  Y/N/O/Comments: N
       NextHop Y/N/O/Comments: N    Future Release of GateD NGC may
                                    support event numbers.
 Top   ToC   RFC4276 - Page 67 
3.35.  Finite State Machine / Section 8.2.2 [RFC4271]



   3.35.181.  ConnectRetryTimer


      Functionality/Description: Sufficiently large to allow TCP
      initialization

      RFC2119: SHOULD

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y



   3.35.182.  Second Connection Tracking


       Functionality/Description: In response to a TCP connection
       succeeds [Event 16 or Event 17], the 2nd connection SHALL be
       tracked until it sends an OPEN message

       RFC2119: SHALL

       Alcatel Y/N/O/Comments: Y
       Cisco   Y/N/O/Comments: Y
       Laurel  Y/N/O/Comments: Y
       NextHop Y/N/O/Comments: Y


(page 67 continued on part 4)

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