![Example: Configuring a Filter to Block TCP Access to a Port Except from Specified BGP Peers | Junos OS | Juniper Networks Example: Configuring a Filter to Block TCP Access to a Port Except from Specified BGP Peers | Junos OS | Juniper Networks](https://www.juniper.net/documentation/us/en/software/junos/routing-policy/images/g040870.gif)
Example: Configuring a Filter to Block TCP Access to a Port Except from Specified BGP Peers | Junos OS | Juniper Networks
![BGP Basics BGP uses TCP (port 179) BGP Established unicast-based connection to each of its BGP- speaking peers. BGP allowing the TCP layer to handle such. - ppt download BGP Basics BGP uses TCP (port 179) BGP Established unicast-based connection to each of its BGP- speaking peers. BGP allowing the TCP layer to handle such. - ppt download](https://slideplayer.com/9816578/32/images/slide_1.jpg)
BGP Basics BGP uses TCP (port 179) BGP Established unicast-based connection to each of its BGP- speaking peers. BGP allowing the TCP layer to handle such. - ppt download
![During the establishment of a BGP peer relationship, what is the status of the BGP peer if the TCP connection fails to be established? During the establishment of a BGP peer relationship, what is the status of the BGP peer if the TCP connection fails to be established?](https://forum.huawei.com/enterprise/api/file/v1/small/thread/667313723007700992.png?appid=esc_en)