Overview ULPP and Monitor Link

The dual-uplink networking mode is one common networking mode of the core network. The networking mode improves the network reliability via the redundant link. The common solution of removing the redundant link is to use STP, but the convergence time of STP cannot meet the carrier-class Ethernet requirement. In this case, ULPP (Uplink Protect Protocol) comes into being.

ULPP meets the performance requirement of the user for the link fast convergence and realizes the redundant backup of the active/standby link and the fast switchover of the traffic, but also simplifies the configuration efficiently. This makes the deployment and maintenance become more convenient and improves the work efficiency of the deploying and maintaining staff.

Monitor Link provides one linkage management technology of the link status change. The ports in the Monitor Link group include one uplink port and multiple downlink ports. The uplink port is monitored in real time. When the uplink port status changes, set the downlink ports at the same time, so as to synchronously inform the uplink device port status to the downlink device fast. This is helpful for STP and ULPP modules to respond the network change and switch the traffic.