# BGP4 Received Paths - Attributes

The BGP4 Received Paths Attributes dialog box displays the attributes of the BGP4 received paths.

## Procedure

For CiscoView versions earlier than 5.2:

1. Right-click the device. Then select Configure, or double-click the device. The Device Configuration dialog box appears.

2. Select Protocols from the Category list.

3. Select BGP4 from the SelectProtocol list and click the Details button. The BGP4 Configuration dialog box appears.

4. Select BGP4 Received Paths - Attributes from the Category list.

For CiscoView version 5.2 and later:

1. Right-click the device, then select Configure, or double-click the device.

2. Select Protocols from the Category list.

3. Select BGP4 in the Selectprotocol list and click the Details button. The BGP4 Configuration dialog box appears.

   Note: The left frame in the dialog box displays the categories and the right frame displays the category details, or a table. If a table is displayed, the variable on which the table is indexed and the key values of the index are listed below the category. Double-click the category to view the table and double-click a key value to view details of a particular row in the table.

   Multiple indexes for a table, if any, are listed below the category in a nested manner. Select a key value to view the rows of the table about that value. Select a key value of the lowest indexing variable to view the details of that particular row.

4. Select BGP4 Received Paths - Attributes from the left pane.

The following information appears:

IP Address Prefix (bgp4PathAttrIpAddrPrefix)

IP Address Prefix Length (bgp4PathAttrIpAddrPrefixLen)

Peer 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)

## Related Topics

BGP4 General Information

BGP4 Peer Information

### IP Address Prefix (bgp4PathAttrIpAddrPrefix)

IP address prefix in the network layer reachability information field. This object is an IP address containing the prefix. The length of the prefix is specified by bgp4PathAttrIpAddrPrefixLen. Bits beyond the length specified by bgp4PathAttrIpAddrPrefixLen, if any, are converted to zeroes.

### IP Address Prefix Length (bgp4PathAttrIpAddrPrefixLen)

Length, in bits, of the IP address prefix in the network layer reachability information field.

### Peer IP Address (bgp4PathAttrPeer)

IP address of the peer where the router learnt the path information.

### Origin of Path Information (bgp4PathAttrOrigin)

origin of the path information. Origin can be:

Code | Description
igp (1) | Internal networks
egp (2) | Networks learnt via EGP
incomplete (3) | Undetermined

### AS Path Segment Sequence (bgp4PathAttrASPathSegment)

Number of the remote autonomous system.

### Border Router Address (bgp4PathAttrNextHop)

Address of the border router that is used for the destination network.

### Metrics to Disc. Multi. Exit Points (bgp4PathAttrMultiExitDisc)

Metric that is used to discriminate between multiple exit points to an adjacent autonomous system. A value of -1 means that this attribute is not present.

### Degree of Preference (bgp4PathAttrLocalPref)

Originating BGP4 speaker's degree of preference for an advertised route. A value of -1 means that this attribute is not present.

### Route Selection (bgp4PathAttrAtomicAggregate)

Indicates if the local system has selected a less specific route rather than a more specific route.

### Route Aggregator AS No. (bgp4PathAttrAggregatorAS)

Autonomous system number of the last BGP4 speaker that performed route aggregation. A value of 0 means that this attribute is not present.

### Route Aggregator IP Address (bgp4PathAttrAggregatorAddr)

IP address of the last BGP4 speaker that performed route aggregation. A value of 0.0.0.0 means that this attribute is not present.

### Calculated Degree of Preference (bgp4PathAttrCalcLocalPref)

Degree of preference for an advertised route. This is as calculated by the receiving BGP4 speaker. A value of -1 means that this attribute is not present.

### Best BGP4 Route (bgp4PathAttrBest)

Indicates if the route was chosen as the best BGP4 route. A value of false (1) means the route was not chosen as the best route and a value of true (2) means that it was chosen as the best route.

### Attribute Unknown (bgp4PathAttrUnknown)

Octet string of size 0 to 255 that shows the path attributes not understood by the BGP4 speaker. If the size of the object is zero, it means that there were no attributes that were not understood. Octets beyond the maximum size, if any, are not recorded by the object.