PM7340 S/UNI-IMA-8
PRELIMINARY
INVERSE MULTIPLEXING OVER ATM
DATA SHEET
PMC-2001723
ISSUE 3
INVERSE MULTIPLEXING OVER ATM
Delete_link
Remove one or more links from the group. If
the group configuration is symmetric, links
should be deleted in both the Tx and RX
directions.
When a Tx link is deleted, user traffic is no
longer sent on the link and it’s state is reported
as “Not in Group”, but IMA frames are still
generated. When either a timeout expires or
the FE Rx is detected to be no longer active,
the deleted links stop generating IMA frames
and start generating idle cells until the link is
reused.
When an Rx link is deleted, it’s state is reported
as “Not in Group”, but traffic is still received and
passed to the ATM layer, until the either a
timeout expires or FE Tx state is detected to be
no longer active. Data received after this point
will no longer be forwarded to the ATM layer.
The RX link is available for reuse after all the
data accumulated in the DCB has been
forwarded to the ATM layer.
No data will be lost in the link deletion
procedure unless the timeout occurs prior to the
FE state change detection.
Set_rx_phy_defect
Indicate to S/UNI-IMA-8 that the given link(s)
have/have not physical defects (such as
LOS/LOF/OOF/AIS) which are not detectable
internally. This causes the S/UNI-IMA-8 to start
reporting physical layer defects in the RX
Defect Indication field in the ICP field for the
affected links.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
72
PMC [ PMC-SIERRA, INC ]
