Which protocol do multichassis link aggregation group (MC-LAG) devices use to exchange the control information between two MC-LAG network devices?
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A. B. C. D.D
The correct answer is D. Inter-chassis Control Protocol (ICCP).
Multichassis Link Aggregation Group (MC-LAG) is a technology used to provide redundancy and high availability in network architectures. It allows a pair of network devices to be configured as a single logical device to provide redundancy and load-balancing capabilities.
When MC-LAG is implemented, one device acts as the active (forwarding) device while the other acts as the standby device. Both devices share the same MAC address and IP address, so that the network sees them as a single logical device.
The MC-LAG devices need to communicate with each other to exchange control information, such as state and status information, to ensure the proper functioning of the logical device. This communication is facilitated by the Inter-chassis Control Protocol (ICCP).
ICCP is a protocol used to exchange control information between two MC-LAG network devices. It is responsible for synchronizing the state and status information between the active and standby devices, detecting and recovering from failures, and managing the distribution of traffic across the link aggregation group.
ICCP uses a standardized messaging format to exchange information between the two devices. The protocol defines a set of messages, including hello messages, keepalive messages, and state synchronization messages, that are used to maintain the communication between the two devices.
In summary, the correct answer to the question is D. Inter-chassis Control Protocol (ICCP) is the protocol used by MC-LAG devices to exchange control information between the two MC-LAG network devices.