BEETEL 450TC3 - OAM Loopback

6.7.3 OAM loopback
OAM Loopback allows you to verify the connectivity between VP/VC endpoints, as well as
segment endpoints within the VP/VC. ATM uses two cell flows: F4 used in VPs and F5 used in
VCs.
Go to Maintenance->Diagnostics->OAM Loopback page, you can perform the loopback function
to check the connectivity of the VCC.