DnD – match sonet to sdh (i.e. section, line, path, payload, etc)
just like the last example
you OC12 on left and STM4 on right you have path on left and i matched it with path on right (i think that was correct) section on left and you had to match it with the correct sdh term on right for sonet they had – section, line, path, oc12, and somthing else
http://www.cisco.com/c/en/us/support/docs/optical/synchronous-optical-network-sonet/16180-sonet-sdh.html
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