CANOGA PERKINS 9145E Standard NID Software Version 1.0 User Manual

Page 93

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802.3AH OAM

9145E NID Software User’s Manual

OAM Control

83

OAM function supported - The following list all the features that are support by the OAM
implementation. The following functions are also communicated to the peer. The following functions
are supported in the 9145E OAM application.

Unidirectional - Indicates that the 9145E supports the transmission of OAM PDU on links that are
operating in unidirectional mode.

LoopBack - Indicates that the 9145E can initiate and respond to loopback commands.

Link Events - Indicated that the 9145E can send and receive event notification OAMPDU.

OAM Loopback Status - Returns the status and states. There are four states available: No Loopback,
initiating Loopback, remote loopback, Terminating loopback.

OAM remote Fault - Indicates if a remote fault OAM PDU was sent by the peer to the 9145E.

The bottom of the screen shows configuration parameters. The user will select which parameter to
configure. The table below shows the standard configuration parameters and their corresponding MIB
objects.

User interface MIB Object -

•OAM Admin State dot3OamAdminState (dot3oam.my)

•OAM Mode dot3OamMode (dot3oam.my)

•OAM Loopback Command dot3OamLoopbackStatus (dot3oam.my)

•Process Rx Loopback OAMPDU dot3OamloopbackIgnoreRx (dot3oam.my)

•Process Rx Link Fault Flag cpDot3OamProcessRxLinkFault (cpdot3oam.my)

•FWD Critical Event cpDot3OamForwardCriticalEvent (cpdot3oam.my)

OAM Admin State - This administrative state is what enable or disable OAM in the 9145E.

OAM Mode - There are two modes that can be configured in every port of the 9145E. The passive
mode will able to participate to the OAM but not the capability to initiate any functions such as
Loopback or generate critical Event.

OAM Loopback Command - This command in the 9145E allows you to start or terminate an existing
remote loopback

Process Rx Loopback OAM PDU - This command allows you to control whether to process or ignore
incoming OAMPDU.

Process Rx Link Fault Flag - This setting controls the actions taken upon reception of a Link Fault
message from a connected partner. If this object is set to Yes, the Link Fault will be processed the
same as Remote Fault and could trigger LLF.

FWD Critical Event - This setting controls whether or not to send critical event when the other port
Link goes down. Information concerning operational status, maximum OAM Protected Data Units
(PDU) size, OAM revision, functions supported, loopback status, and remote link fault. The following
parameters can also be configured from the OAM Control screen.

Depending on the configuration, Operational Status can be showing Locally Rejected, Send Local
Remote OK
, Active Send Local, Passive Wait, and Link Fault, and Disabled when OAM Admin state is
disabled.
OAM Revision is incremented whenever OAM Mode is changed from Active to Passive and Passive to
Active. Functions Supported will show loopback, Link Events if set to UTP port. If the port is set to SFP
port, it will show Unidirectional, loopback, LinkEvents. Depending on the configuration, Loopback
Status may show Local Loopback, Remote Loopback, and No Loopback.

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