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Don't Get BECN-ed or FECN-ed: Understand Frame Relay Protocols for your Cisco CCNA/CCNP Exam


Are you getting ready to take the Cisco CCNA or CCNP Certification Exam? One important concept to understand is frame relay protocols, such as BECN and FECN. These are essential topics to know when it comes to passing the exam. In this blog post, we'll discuss what BECN and FECN are and why they are important to understand for the CCNA/CCNP exam. So don't get BECN-ed or FECN-ed - learn the basics of frame relay protocols today!



What is a BECN?

BECN stands for Backward Explicit Congestion Notification. It is a signal sent from the far end of a Frame Relay network to the near end, indicating that congestion has been detected and that data should be slowed down or halted. In other words, when the remote side of a Frame Relay connection detects that its outbound queues are becoming full, it sends a BECN signal back to the sender telling them to reduce their transmission rate. This ensures that data can still move through the network at a steady rate, avoiding bottlenecks. The BECN signal is a key part of the Frame Relay protocol and must be understood by anyone taking the Cisco CCNA or CCNP certification exams.


How do BECNs and FECNs work together?

Frame Relay BECNs and FECNs are important concepts to understand when preparing for your Cisco CCNA/CCNP exam. BECNs (Backward Explicit Congestion Notifications) and FECNs (Forward Explicit Congestion Notifications) help ensure that network traffic is flowing smoothly by responding to congestion in the Frame Relay network. When a router receives a BECN, it will reduce its transmission rate and when it receives an FECN, it will increase its transmission rate. By working together, these two features can help improve network performance.


What is the significance of BECNs and FECNs in the Cisco CCNA/CCNP Exam?

BECN (Backward Explicit Congestion Notification) and FECN (Forward Explicit Congestion Notification) are two important concepts that you need to understand for your Cisco CCNA/CCNP exam. BECN is a mechanism by which routers in the same Frame Relay network can communicate with each other about network congestion. The router sending the BECN can let the other routers know that it has experienced delays due to congested links. FECN is similar, but it operates in the opposite direction; it notifies the sending router that its packets are experiencing delays due to congested links. These protocols allow the routers to adjust the speed of their connections, thereby ensuring optimal throughput and performance.

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