CIENA-CES-OAM-MIB Table View

Statistics for the OAM function on a particular Ethernet-like
interface.

This table records a history of the events that have occurred
at the Ethernet OAM level. These events can include locally
detected events, which may result in locally generated
OAMPDUs, and remotely detected events, which are detected by
the OAM peer entity and signaled to the local entity via
Ethernet OAM. Ethernet OAM events can be signaled by Event
Notification OAMPDUs or by the flags field in any OAMPDU.

Primary controls and status for the OAM capabilities of an
Ethernet like interface.  There is one row in this table
for each Ethernet like interface in the system that supports
the Ethernet OAM functions defined in [802.3ah].

Information about the OAM peer for a particular Ethernet like
interface. OAM entities communicate with a single OAM peer
entity on full-duplex Ethernet links on which OAM is enabled
and operating properly.  
          
In certain states, the OAM peer information is not available.
Whether peer information is available is communicated via the
cienaCesOamPeerStatus object.  When this object is inactive, all
other information in the row is considered invalid.

This table contains methods to control the loopback state of
the local link as well as indicating the status of the
loopback function.
           
Loopback can be used to place the remote OAM entity in a state
where every received frame (except OAMPDUs) are echoed back
over the same interface on which they were received.   In this
state, at the remote entity, 'normal' traffic is disabled as
only the looped back frames are transmitted on the interface.
Loopback is thus an intrusive operation that prohibits normal
data flow and should be used accordingly.

Ethernet OAM includes the ability to generate and receive
event notifications to indicate various link problems.  This
table contains the mechanisms to configure the thresholds to
generate the standard Ethernet OAM Event.
These events are:
   - Errored Symbol Period Event.  Generated when the number of
     symbol errors exceeds a threshold within a given window
     defined by a number of symbols (e.g. 1,000 symbols out of
     1,000,000 had errors).
   - Errored Frame Period Event.  Generated when the number of
     frame errors exceeds a threshold within a given window
     defined by a number of frames (e.g. 10 frames out of 1000
     had errors).
   - Errored Frame Event.  Generated when the number of frame
     errors exceeds a threshold within a given window defined
     by a period of time (e.g. 10 frames in 1 second had
     errors).
   - Errored Frame Seconds Summary Event.  Generated when the
     number of errored frame seconds exceeds a threshold within
     a given time period (e.g. 10 errored frame seconds within
     the last 100 seconds).  An errored frame second is defined
     as a 1 second interval that had >0 frame errors.