| Description | A conceptual row for this table.
Entries are created by either management operations or
other M-CMTS applications or interfaces (e.g., ERMI), the
persistence of an entry is indicated in
docsIfMCmtsDepiSessionConfigStorage.
The DEPI connection mechanism using L2TPv3 is initiated
when an entry in this table is set to active. The
following conditions apply:
o If the M-CMTS L2TPv3 Control Connection with the remote
EQAM Host IP in docsIfMCmtsDepiSessionConfigRemoteAddr
does not exist, a DEPI L2TPv3 control Connection is
created.
o There may be cases where the control plane with the EQAM
IP host exists or is in progress, (e.g., a previously
created entry with same EQAM IP host), thus the M-CMTS
MUST avoid multiple L2TP Control Connection State
machines.
o DEPI L2TPv3 sessions are created based on the TSID
value. Only the first entry with row status 'active'
with a particular TSID value will try to establish a
L2TPv3 session. Other entries with same TSID value
return state of 'depiSessionError' in
docsIfMCmtsDepiSessionInfoState.
Relationships with the DOCSIS MAC domain IfStackTable:
This control considers the ability of the M-CMTS to use a
manager-specified Downstream interface value
for the configuration of the DOCSIS MAC domain downstream
interfaces of the M-CMTS architecture.
o When docsIfMCmtsDepiSessionConfigCableDownstreamIfIndex
is a non-zero value the value of
docsIfMCmtsDepiSessionConfigCableMacLayerIfIndex MUST be
an existing DOCSIS MAC layer interface.
o If an entry in this table already exists for the specified
docsIfMCmtsDepiSessionConfigCableDownstreamIfIndex,
or corresponds to an ifIndex signaled as
'integrated' in docsIfMCmtsDownstreamType a
newly created entry set to active is rejected and
reported in docsIfMCmtsDepiSessionInfoState as
'invalidDSInterfaceValue'.
o The M-CMTS accepts or rejects the creation of a new
table entry based on the possibility of adding a new
Downstream interface to the MAC domain. On success it
is reported in docsIfMCmtsDownstreamType as
'depiSession'.
Relationship with M-CMTS Downstream Interface tables:
Setting an entry to active creates or updates (when
docsIfMCmtsDepiSessionConfigCableMCmtsDownIfIndex is
provided in the row creation; see the object description
for details) the corresponding entry in the following
tables:
ifTable,
docsIfDownstreamChannelTable,
docsIfMCmtsCoreDownstreamTable/
docsIfMCmtsEqamDownstreamTable,
docsIfMCmtsCoreDownstreamTable,
docsIfMCmtsDepiSessionInfoTable, and
docsIfMCmtsDepiSessionStatsTable
In the EQAM device this table is normally created by the
M-CMTS Core initiated DEPI session, although manual
configuration may be supported, with the difference that
EQAM devices are not required to initiate DEPI sessions.
EQAM device Operation of configured entries is not
detailed in this MIB module. |