Recent disruptions to two undersea internet cables in the Baltic Sea have yet again...
2.3 BGP Data
BGP Data is delivered as an optional add-on to Noction Flow Analyzer.
NFA overcomes the limitation of BGP support in traditional NetFlow. It employs a collection of full BGP data from BGP tables of edge routers, extracting the required BGP attributes. NFA extracts BGP attributes such as AS_PATH and matches the obtained data with a corresponding flow record from Flow DB tables. This enables NFA to see and filter on the full BGP path, not just the next hop, first three or last three AS numbers.
Enabling BGP data will require you to establish a BGP session between at least one of your routers and NFA.
2.3.1 BGP Report #
Use the BGP Report section to see BGP data obtained from your devices. The BGP Route advertisements and withdrawals can now be visualized both in a graph and table mode.
Filter, group, and search data according to your needs. Create and add custom widgets to any of your dashboards.
BGP Route advertisements and withdrawals can be visualized both in a graph and table mode. BGP Routes representation helps provide a greater view of prefix reachability inconsistency details obtained from the connected devices. Users can analyze the effect of routing changes by reviewing all routes active in the selected time window or filter results down to a specific prefix.
2.3.2 BGP Sankey Diagram #
NFA offers a great way to visualize the Internet traffic routing criteria along with traffic volume using a Sankey type diagram. Its extensive filtering capabilities can provide you with a clear picture of the paths your traffic is taking, the countries regions or cities you traffic originates and terminates in, traffic volume distribution by different paths, best potential new peering candidates, and a lot more.
The list of available filters is listed below:
• Time
• Source and Destination Address
• Source and Destination Port
• Source and Destination VLAN
• Source and Destination Mask
• Source and Destination AS Number
• Source and Destination AS Path
• Source and Destination AS Path Length
• Source and Destination Country
• Source and Destination City
• Source and Destination L2 MAC Address
• MPLS Top Label to Top Label 9
• MPLS Top Label Type
• MPLS Top Label IPv4 Address
• MPLS Top Label IPv6 Address
• MPLS Top Label Prefix Length
• MPLS VPN Route Distinguisher
• MPLS Top Label TTL
• MPLS Label Stack Length
• MPLS Label Stack Depth
• MPLS Top Label Exp
• L3 IP TTL,
• L3 IP min TTL,
• L3 IP max TTL,
• L3 IP Total Length,
• L3 IP min Total Length
• L3 IP max Total Length
• BGP Community
• TOS – Type of Service
• Protocol
• Input Interface
• Output Interface
• Next Hop Address
• Pseudowire ID
• Pseudowire Type
• Pseudowire Control Word
• BGP Local Preference
• BGP MED
• Exporter Address
• Exporter ID
• TCP Flag
• Flow Role
• Source and Destination AS Path
• Source and Destination AS Path Length
• Exporter AS
• L2 Ethernet Type
• Application name
• Application Name Custom Group
• Application Name Length
• Source and Destination FQDN Address
| Click “Advanced Options” to increase/decrease the number of BGP paths visible on the diagram, show/hide the AS path prepends as well as the upstream/downstream ASNs info.
Another option allows you to select a specific unit prefix, ensuring that the data displayed in both the graph and table is consistently presented with your chosen unit prefix. By default, the unit prefix is set to “Auto.” However, you can choose from the following options: auto, kilo, mega, giga, tera, peta, and exa. |
 |