# BGP4 Received Paths - Attributes

To access this dialog box:

1. Select Device > Configure > Protocols.
2. With BGP4 selected in the Select Protocol field, click Details. A confirmation message appears.
3. Click OK to proceed and launch the main BGP4 dialog box.
4. From the left contents pane, click BGP4 Received Paths - Attributes.

The following information is displayed:

- IP Address Prefix (bgp4PathAttrIpAddrPrefix)
- IP Address Prefix Length (bits) (bgp4PathAttrIpAddrPrefixLen)
- IP Address (bgp4PathAttrPeer)
- Origin of Path Information (bgp4PathAttrOrigin)
- AS Path Segment Sequence (bgp4PathAttrASPathSegment)
- Border Router Address (bgp4PathAttrNextHop)
- Metrics to Disc. Multi. Exit Points (bgp4PathAttrMultiExitDisc)
- Degree of Preference (bgp4PathAttrLocalPref)
- Route Selection (bgp4PathAttrAtomicAggregate)
- Route Aggregator AS No. (bgp4PathAttrAggregatorAS)
- Route Aggregator IP Address (bgp4PathAttrAggregatorAddr)
- Calculated Degree of Preference (bgp4PathAttrCalcLocalPref)
- Best BGP4 Route (bgp4PathAttrBest)
- Attribute Unknown (bgp4PathAttrUnknown)

The following list specifies buttons in this dialog box, as well as their function:

- Click OK to continue.

- Click Apply to save the changes in the dialog box.

- Click Cancel to close the dialog box.

- Click Refresh to update the contents of the dialog box.

- Click Print to print the contents of the dialog box.

- Click Help to access online help.

IP Address Prefix (bgp4PathAttrIpAddrPrefix)

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

IP Address Prefix Length (bits) (bgp4PathAttrIpAddrPrefixLen)

Length, in bits, of the IP address prefix in the Network Layer Reachability Information field.

IP Address (bgp4PathAttrPeer)

IP address of the peer from which the path information was learned.

Origin of Path Information (bgp4PathAttrOrigin)

Origin of the path information.

AS Path Segment Sequence (bgp4PathAttrASPathSegment)

Indicates the sequence of AS path segments.

Border Router Address (bgp4PathAttrNextHop)

Address of the border router that should be used for the destination network.

Metrics to Disc. Multi. Exit Points (bgp4PathAttrMultiExitDisc)

Metric used to decide between multiple exit points to an adjacent autonomous system. The value "-1" indicates the absence of this attribute.

Degree of Preference (bgp4PathAttrLocalPref)

Originating BGP4 speaker's degree of preference for an advertised route. The value "-1" indicates the absence of this attribute.

Route Selection (bgp4PathAttrAtomicAggregate)

Indicates whether the local system has selected a less specific route.

Route Aggregator AS No. (bgp4PathAttrAggregatorAS)

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

Route Aggregator IP Address (bgp4PathAttrAggregatorAddr)

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

Calculated Degree of Preference (bgp4PathAttrCalcLocalPref)

Degree of preference calculated by the receiving BGP4 speaker for an advertised route. The value "-1" indicates the absence of this attribute.

Best BGP4 Route (bgp4PathAttrBest)

Indicates whether this route was chosen as the best BGP4 route.

Attribute Unknown (bgp4PathAttrUnknown)

One or more path attributes not understood by this BGP4 speaker. Zero-length octets indicate the absence of such attributes. Octets beyond the maximum size are not recorded by this object.