The Bridge Control Protocol (BCP) is primarily responsible for the bridge protocol parameters of the point-to-point link terminal. BCP and link control protocol use the same packet switching mechanism. When the PPP reaches the network layer protocol phase, the BCP packet can be exchanged, while the BCP packet received before this phase needs to be canceled.
PPP provides a standard method for the transmission of multi-protocol self-addressed packets based on point-to-point connection, which defines an extension link control protocol LCP, and proposes a set of network control protocols for the establishment and configuration of different network layer protocols. NCP. This file is also defined for the establishment and configuration of remote bridge technology in the PPP link.
BCP compares two equipment configurations and strives to negotiate a suitable crossbed net to enhance the correctness of interoperability in small configurations or different devices. When a primary configuration error is detected, the negotiation process cannot be implemented, and the result will cause the link to fail. If the bridge link occurs with inferior peer-to-peer structures, this will create a service refusal to attack by forwarding the multicast traffic, or by turning off the "probe or isolation" loop or providing inferior load, such a situation is completely possible. appeared.
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