The actions to be taken for a given layer 2 control protocol
service frames that matches cevcSIL2ControlProtocolType,
including:
'discard'
The MEN must discard all ingress service frames
carrying the layer 2 control protocol service frames
on the EVC and the MEN must not generate any egress
service frames carrying the layer 2 control protocol
frames on the EVC.
'tunnel'
Forward the layer 2 control protocol service frames
with the MAC address changed as defined by the
individual layer 2 control protocol. The EVC does not
process the layer 2 protocol service frames. If a
layer 2 control protocol service frame is to be
tunneled, all the UNIs in the EVC must be configured to
pass the layer 2 control protocol service frames to the
EVC, cevcPortL2ControlProtocolAction column has the
value of 'passToEvc' or 'peerAndPassToEvc'.
'forward'
Forward the layer 2 conrol protocol service frames as
data; similar to tunnel but layer 2 control protocol
service frames are forwarded without changing the MAC
address.