| 摘要 |
Disclosed are a method and system for information interaction between systems in a same portal in a distributed resilient network interconnection, wherein the method is applied to each system in an portal in a link aggregation group, including: sending a distributed relay control protocol (DRCP) message through an intra-portal interface, wherein at least system information of a present system is carried; after receiving a DRCP message sent by an adjacent system, if it is determined that the present system and the adjacent system can form one portal in the distributed resilient network interconnection, determining an operational Key value of the present system. The system includes: a sending state machine, a receiving state machine, a negotiating state machine, a synchronizing state machine and a periodic sending state machine. The embodiments of the present invention can be used to realize control communication between a plurality of systems in one portal in a distributed link aggregation group, and can effectively realize protection on the interconnected interface, not only protection on the link but also protection at the level of node, after the plurality of systems are aggregated into one aggregation group. |
