metrotek ETS-1000, Руководство по эксплуатации

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50 Analysis. Typical tasks and solutions
• Press button ( LB up ). Loopback mode ( L2 ) is switched on on the
remote device (all the incoming traffic is being retransmitted backward
without changing MAC-addresses).
Press ( LB down ) button to switch Loopback mode off.
Figure 5.50. OAM menu
•
Port — select a port for OAM configuring.
•
Mode — available OAM states.
– Active — active mode. In active mode, the selected port can send
commands to locate remote device, to enable the Loopback mode
on the remote device, and to response Ethernet OAM commands
from the remote device.
– Passive — passive mode. In passive mode, the port can only re-
sponse to the Ethernet OAM commands from the remote device,
but cannot initiate the Loopback mode.
– Off — OAM disabled.
•
Discovery — state of locating the remote device. Available states:
– Fault — initial state, connection with remote device is not estab-
lished;
– Send local — transmission of OAMPDU with information about
supported operating modes;
– Passive wait — waiting for OAMPDU with information about sup-
ported operating modes from remote device that is configured in
active mode;
– Send loc/rem — transmission of OAMPDU with information about
supported operating mode of local and remote devices (with label
that means connection establishing possibility);
– Send loc/rem ok — receiving OAMPDU with information that op-
erating modes of local and remote devices are compatible;
ETS-1000. Operations manual