Technical Tip: How to view the BGP connection information also known as Transmission Control Block (TCB)

[Rajneesh]

Description	This article describes how to view BGP connection information, such as Local IP and Port and foreign IP and Port. It is also known as the Transmission Control Block (TCB) refers to the data structure used to manage TCP connections associated with BGP sessions.
Scope	FortiGate.
Solution	In the attached image, it can be seen that there is neighborship between the FGT-1 and FGT-2. It is possible to use the following command to view the connection information, also known as Transmission Control Block: FGT-1 # get router info bgp neighbors 6.6.6.1 | grep -A8 Connections Connections established 1; dropped 0 External BGP neighbor may be up to 255 hops away. Local host: 5.5.5.1, Local port: 179 Foreign host: 6.6.6.1, Foreign port: 11058 Nexthop: 5.5.5.1 Nexthop interface: port2 Nexthop global: :: Nexthop local: :: BGP connection: non shared network