Bgp-4 Traps - Enterasys Security Router X-PeditionTM User Manual

BGP v4 MIB Tables
Table B-17 BGP-4 Received Path Attribute Table (continued)
Field
bgp4PathAttrASPathSegment
bgp4PathAttrNextHop
bgp4PathAttrMultiExitDisc
bgp4PathAttrLocalPref
bgp4PathAttrAtomicAggregate
bgp4PathAttrAggregatorAS
bgp4PathAttrAggregatorAddr
bgp4PathAttrCalcLocalPref
bgp4PathAttrBest
bgp4PathAttrUnknown

BGP-4 Traps

Table B-18 BGP-4 Traps
Field
bgpEstablished
bgpBackwardTransition
B-8 XSR SNMP Proprietary and Associated Standard MIBs
Description
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:
• AS_SET: unordered set of ASs a route in the UPDATE messages has traversed.
• AS_SEQUENCE: ordered set of ASs a route in the UPDATE messages 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 address of the border router that should be used for the destination network.
This metric discriminates between multiple exit points to an adjacent AS, ranging from 1
to 2147483647. A value of -1 indicates the absence of this attribute.
The originating BGP4 speaker's degree of preference for an advertised route, ranging
from 1 to 2147483647. A value of -1 indicates the absence of this attribute.
Whether or not the local system has selected a less specific route without selecting a
more specific route.
The AS number of the last BGP4 speaker that performed route aggregation, ranging
from 0 -65535. A value of zero (0) indicates the absence of this attribute.
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.
The degree of preference calculated by the receiving BGP4 speaker for an advertised
route, ranging from 1 to 2147483647. A value of -1 indicates the absence of this
attribute.
An indication of whether or not this route was chosen as the BGP4 route.
One or more path attributes not understood by this BGP4 speaker. Range: 0-255. Size
zero (0) indicates the absence of such attribute(s). Octets beyond the maximum size, if
any, are not recorded by this object.
Description
The BGP Established event is generated when the BGP FSM enters the ESTABLISHED state.
The BGPBackwardTransition Event is generated when the BGP FSM moves from a higher
numbered state to a lower number state.