3Com 3C63100-AC-C - PathBuilder S600 Bridge/router Reference Manual page 139

FE Rx State—Far-end transmit state in the interworking link state machine.
Table 29 lists the possible link states.
.
Table 29 Possible IMA Link States
State Tx Condition
not in group This link is not part of the IMA
group.
unusable This is caused by LOS, which
blocked would result in back clock from
the framer if the port is in
looped timing.
usable This link is ready to pass data.
active This link is passing data.
FE Rx Failure—Far-end Rx failure status in the interworking link state machine.
Table 30 lists the possible IMA link failure status conditions.
NE Rx Failure—Near-end Rx failure status in the interworking link state machine.
Table 30 lists the possible IMA link failure status conditions.
Table 30 Possible IMA Link Failure Status Conditions
Failure Description
link failure This is caused by LOS, AIS, OOF, or LCD
LIF failure This is caused by LIF
LODS failure This is caused by LODS.
Misconnected This is caused by bad IMA ID, bad link ID, or bad SCCI.
blocked This is caused by AFA, excessive delay, or mismatched
protocol.
fault This is caused by bad M value, bad symmetry, bad offset,
or duplicate link ID.
far end Tx link This is caused by the far end reporting Tx unusable in the
unusable ICP cells.
far end Rx link This is caused by the far end reporting Rx unusable in the
unusable ICP cells.
no failure The link has no failure.
Tx LID—Transmit logical link ID: 0-31. This number reflects the local IMA ID.
Rx LID—Receive logical link ID: 0-31. This number reflects the remote IMA ID.
Operation LInk Delay—The differential link delay referenced to the fastest link in
the same group.
Rx Test Pattern—The received test pattern received: 0-254; 255 indicates that no
pattern has been received.
Test Procedure—The status of the test procedure: disabled, operating, or link
failed.
Configuring the DS1 (or E1) UNI with IMA Modules
Rx Condition
This link is not part of the IMA
group.
This is caused by AFA,
excessive delay, or mismatched
protocol.
This link is ready to pass data.
This link is passing data.
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