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MIB Reference

S12700 V200R010C00

This document provides the function overview, relationships between tables, description of single objects, description of MIB tables, and description of alarm objects.
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bgp4PathAttrTable

bgp4PathAttrTable

The table describes the information about the routes to obtain the entire peer destination network. The value depends on the following two points:

  • The table has values only when the peer imports BGP routes.

  • The table has values only when the peer is not in the idle state. That is, the value of bgpPeerAdminStatu in bgpPeerTable must be start (2).

The indexes of this table are bgp4PathAttrPeer, bgp4PathAttrIpAddrPrefixLen, and bgp4PathAttrIpAddrPrefix.

OID

Object Name

Syntax

Max Access

Description

Implemented Specifications

1.3.6.1.2.1.15.6.1.1

bgp4PathAttrPeer

IpAddress

Read-only

The IP address of the peer where the path information was learned.

This object is implemented as defined in the corresponding MIB files.

1.3.6.1.2.1.15.6.1.2

bgp4PathAttrIpAddrPrefixLen

INTEGER (0..32)

Read-only

Length in bits of the IP address prefix in the Network Layer Reachability Information field. The value ranges from 0 to 32.

This object is implemented as defined in the corresponding MIB files.

1.3.6.1.2.1.15.6.1.3

bgp4PathAttrIpAddrPrefix

IpAddress

Read-only

An IP address prefix in the Network Layer Reachability Information field. This object is an IP address containing the prefix with length specified by bgp4PathAttrIpAddrPrefixLen. Any bits beyond the length specified by bgp4PathAttrIpAddrPrefixLen are zeroed.

This object is implemented as defined in the corresponding MIB files.

1.3.6.1.2.1.15.6.1.4

bgp4PathAttrOrigin

INTEGER{igp(1),egp(2),incomplete(3)}

Read-only

The ultimate origin of the path information. Values are as follows:
  • igp (1)
  • egp (2)
  • incomplete (3)

This object is implemented as defined in the corresponding MIB files.

1.3.6.1.2.1.15.6.1.5

bgp4PathAttrASPathSegment

OCTET STRING (SIZE (2..255))

Read-only

The sequence of AS path segments. Each AS path segment is represented by a triple <type, length, value>.The type is a 1-octet field which has two possible values:1 AS_SET: unordered set of ASs a route in the UPDATE message has traversed.2 AS_SEQUENCE: ordered set of ASs a route in the UPDATE message has traversed.The length is a 1-octet field containing the number of ASs in the value field.The value field contains one or more AS numbers, each AS is represented in the octet string as a pair of octets according to the following algorithm:first-byte-of-pair = ASNumber / 256;second-byte-of-pair = ASNumber & 255;The value ranges from 2 to 255.

The value ranges from 2 to 255 in the MIB, but from 0 to 255 in the command line. If the value specified in the command line is greater than 255, the value displayed in the MIB is 255.

1.3.6.1.2.1.15.6.1.6

bgp4PathAttrNextHop

IpAddress

Read-only

The address of the border device that should be used for the destination network.

This object is implemented as defined in the corresponding MIB files.

1.3.6.1.2.1.15.6.1.7

bgp4PathAttrMultiExitDisc

INTEGER (-1..2147483647)

Read-only

This metric is used to discriminate between multiple exit points to an adjacent autonomous system. A value of -1 indicates the absence of this attribute. The value ranges from -1 to 2147483647.

The value ranges from -1 to 2147483647 in the MIB, but from 0 to 4294967295 in the command line. If the value specified in the command line is greater than 2147483647, the value displayed in the MIB is 2147483647.

1.3.6.1.2.1.15.6.1.8

bgp4PathAttrLocalPref

INTEGER (-1..2147483647)

Read-only

The originating BGP4 speaker's degree of preference for an advertised route. A value of -1 indicates the absence of this attribute. The value ranges from -1 to 2147483647.

The value ranges from -1 to 2147483647 in the MIB, but from 0 to 4294967295 in the command line. If the value specified in the command line is greater than 2147483647, the value displayed in the MIB is 2147483647.

1.3.6.1.2.1.15.6.1.9

bgp4PathAttrAtomicAggregate

INTEGER{lessSpecificRrouteNotSelected(1),lessSpecificRouteSelected(2)}

Read-only

Whether or not the local system has selected a less specific route without selecting a more specific route. Values are as follows:
  • lessSpecificRouteNotSelected(1)
  • lessSpecificRouteSelected(2)

This object is implemented as defined in the corresponding MIB files.

1.3.6.1.2.1.15.6.1.10

Bgp4PathAttrAggregatorAS

INTEGER (0..65535)

Read-only

The AS number of the last BGP4 speaker that performed route aggregation. A value of zero (0) indicates the absence of this attribute.

To support 4-byte AS numbers, the value ranges from 0 to 4294967295. When the AS number is greater than 2147483647, the value obtained by the MIB is a negative value.

1.3.6.1.2.1.15.6.1.11

bgp4PathAttrAggregatorAddr

IpAddress

Read-only

The IP address of the last BGP4 speaker that performed route aggregation. A value of 0.0.0.0 indicates the absence of this attribute.

This object is implemented as defined in the corresponding MIB files.

1.3.6.1.2.1.15.6.1.12

bgp4PathAttrCalcLocalPref

INTEGER (-1..2147483647)

Read-only

The degree of preference calculated by the receiving BGP4 speaker for an advertised route. A value of -1 indicates the absence of this attribute. The value scope is from -1 to 2147483647.

The value ranges from -1 to 2147483647 in the MIB, but from 0 to 4294967295 in the command line. If the value specified in the command line is greater than 2147483647, the value displayed in the MIB is 2147483647.

1.3.6.1.2.1.15.6.1.13

bgp4PathAttrBest

INTEGER{false(1),true(2)}

Read-only

An indication of whether or not this route was chosen as the best BGP4 route. Values are as follows:
  • False (1)
  • true (2)

This object is implemented as defined in the corresponding MIB files.

1.3.6.1.2.1.15.6.1.14

bgp4PathAttrUnknown

OCTET STRING (SIZE(0..255))

Read-only

One or more path attributes that are not understood by this BGP4 speaker. Size zero (0) indicates the absence of such attribute(s). Octets beyond the maximum size, if any, are not recorded by this object. The value ranges from 0 to 255.

This object is implemented as defined in the corresponding MIB files.

Creation Restriction

The table cannot be created.

Modification Restriction

Objects in this table cannot be modified.

Deletion Restriction

Objects in this table cannot be deleted.

Access Restriction

The table can be read only if there is a BGP route and the field value of bgpPeerAdminStatu in the bgpPeerTable is start (2).bgp4PathAttrMultiExitDisc and bgp4PathAttrLocalPref, bgp4PathAttrCalcLocalPref: The values of the three objects range from -1 to 2147483647. However, the value scope defined by command lines is from 0 to 4294967295. If the value that the MIB reads through the command lines exceeds the defined maximum value, the MIB can read the value 2147483647.

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Updated: 2019-08-21

Document ID: EDOC1000142096

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