Configuring the DS1 (or E1) UNI with IMA Modules
141
The IMA Group Status screen lists the following information pertaining to the IMA
status of the group as a whole.
Operation Port(s)
—The port numbers of the active links in the group.
NE State
—The status of the near end group state machine:
not configured
,
startup
,
startupAck
,
unsupported M
,
incompatible symmetry
,
other config abort
,
insufficient links
,
blocked
, or
operational
.
FE State
—The status of the far end group state machine:
not configured
,
startup
,
startupAck
,
unsupported M
,
incompatible symmetry
,
other config abort
,
insufficient links
,
blocked
, or
operational
.
Failure Status
—Failure status of the near end interworking group state machine.
Table 31 lists the possible IMA group failure status conditions.
FE Tx Clocking
—Far-end transmit clocking mode: common or independent.
Tx Timing Ref. Link
—The near end transmitting timing reference port for cell
clock recovery:
1 to N
.
Rx Timing Ref. Link
—The near end received timing reference port for cell clock
recovery:
1 to N
.
Rx IMA ID
—The IMA receive group ID:
0-255
. This number reflects the remote
IMA ID.
NE State Last Changed
—The date and time at which the near-end state last
changed.
Rx Framer Length
—Receive M value:
32
,
64
,
128
, or
256
. The frame length of
the first link that can communicate with the far end is chosen as the frame length
of the far end group.
Table 31
Possible IMA Group Failure Status Conditions
Failure
Description
Near End Asymmetric
Near end rejected asymmetrical configuration or operation
chosen by the far end.
Far End Invalid M
Far end rejected the M value chosen by the user on the
near end.
Other Failures
The near end group detected multiple IMA ID, multiple M,
or multiple symmetry, or the group has duplicated IMA ID,
or the far end reported configuration abort without any
reason.
Near End Insufficient
Links
This is a normal transitional state when the near end group
is coming up. If it persists, it indicates that the group
indeed does not have enough links to come up and pass
data.
Far End Insufficient
Links
This is a normal transitional state when the far end group
is coming up. If it persists, it indicates that the group
indeed does not have enough links to come up and pass
data.
Near End Blocked
The near end group cannot pass data due to LODS.
Far End Blocked
The far end group has enough links, but cannot pass data
for some other reason.
Near End Startup
This is a normal transitional state when the near end group
is coming up.
Far End Startup
This is a normal transitional state when the far end group
is coming up.
No Failure
The group has no failure.
Summary of Contents for 3C63100-AC-C - PathBuilder S600...
Page 8: ...INDEX 3COM CORPORATION LIMITED WARRANTY ...
Page 14: ...xiv CHAPTER SUPPLEMENTARY REGULATORY INFORMATION ...
Page 18: ...18 ABOUT THIS GUIDE ...
Page 28: ...28 CHAPTER 1 SYSTEM DESCRIPTION ...
Page 74: ...74 CHAPTER 3 GETTING STARTED ...
Page 230: ...230 INDEX ...
