Procedure: When a connection to a host in a distant network is established, the subnet sees that the destination is remote, and builds a virtual circuit to the router nearest the destination network.
{"Image DocumentName": "Concatenated Virtual Circuits", "Image ImageDescription": "Procedure: When a connection to a host in a distant network is established, the subnet sees that the destination is remote, and builds a virtual circuit to the router nearest the destination network. Then it constructs a virtual circuit from that router to an external gateway . The gateway records the existence of the virtual circuit in its tables and proceeds to build another virtual circuit to a router in the next subnet. This process continues until the destination host has been reached. Once Data packets begin flowing along the path, each gateway relays incoming packets, converting between packets formats and virtual circuit numbers as needed. Clearly, all data packets must traverse the same sequence of gateways, and thus arrive in order.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}