Choose Tools→Route Analysis→IGP Topology→IGP_Administrative_Domain from the NFM-P main menu. The appropriate IGP topology map opens.

Right-click on the map and choose Highlight BGP/IPV4/VpnIpV4 Advertising Router. The Highlight BGP/IPV4/VpnIpV4 Advertising Router form opens.

Click on the Select button next to the BGP AS parameter, if necessary. The Select BGP AS form opens.

Specify a filter for the search, if required, and click on the Search button. A list of BGP AS numbers appears.

Choose an entry and click on the OK button. The Select BGP AS form closes and the Highlight BGP/IPV4/VpnIpV4 Advertising Router form refreshes with the BGP AS number.

Configure the parameters:

• IP Address

• Prefix Length

• Prefix Type

Click on the OK button. The Highlight BGP/IPV4/VpnIpV4 Advertising Router form closes and the routers that advertise the specified prefix are highlighted on the topology map.

Click on the Legend button at the top of the topology map and choose Highlight Sessions from the contextual menu. The Legend - IGP Topology form opens with the Highlight Sessions tab displayed. See To manage active highlights on a topology map for information about how to manage active highlights on a topology map.

Close the topology map.

End of steps