Currently we have an OC-12 Packet Over Sonet link from one 6506 to another 6506 across the country. The provider offered us to use GigE access option to their Cisco ONS MSPP to bring down monthly recurring cost .
My question is, how do you do loopback test/troubleshoot Ethernet type of network across SONET? If the provider give you a loop from their network, are you able to see it? Also, can Ethernet OAM be configured on 6506 Sup720 to perform end to end Ethernet montoring in case the provider's network is having problem?