Next we create the socket and begin configuring it, first by setting its read timeout to a short value. We then set the TTL value used by outbound packets to 1. This goes in the IPv4 header Time To Live field (9.1 The IPv4 Header); this means that no downstream routers will ever forward the packet. This is exactly what we want; RIP uses multicast only to send to immediate neighbors.
A destination group is also attached to the subscription. Destination ip and port are generated dynamically. Data is encoded using self-describing-gpb. As collector initialized the session, the transport being used in this case is Dial In. State tells us about the state of the subscription, No TLS says that transport layer security is disabled. Total bytes sent and Total packets sent gives us stats about amount of data collected. Collection groups are also attached to the subscription. This group tells us about the some of the statistics related to the subscription. The Sysdb Path gives us the path from which data is being collected internally. 2b1af7f3a8