The switch mixes Ethernet and Synchronous Optical Network (Sonet) traffic on the same fiber and is thus targeted at metro service providers ... protected lambdas per ring and add/drop any lambda ...

If one switch is the root of the spanning tree ... but provides a way to limit spanning tree and optimize it for Metro Ethernet ring topologies. REP is designed to give 50 ms. convergence times ...

offering a rich set of advanced enterprise and metro ethernet features for both next-generation enterprise networks and service provider solutions. The Alcatel-Lucent OmniSwitch® 6570M Gigabit ...