All MIBs › NSCRTV-FTTX-GPON-MIB › gponOnuIgmpDownstreamTagControl
gponOnuIgmpDownstreamTagControl
Module: NSCRTV-FTTX-GPON-MIB
OID (symbolic): NSCRTV-FTTX-GPON-MIB::gponOnuIgmpDownstreamTagControl
OID (numeric): 1.3.6.1.4.1.17409.2.8.6.4.1.1.17
Node type: OBJECT-TYPE
Type: INTEGER
Access: read-create
Description: G.988-201210: 9.3.27 Multicast operations profile, Attribute: Downstream IGMP and multicast TCI(first byte). This attribute controls the downstream tagging of both the IGMP/MLD and multicast frames. If this attribute is not 1, a possible extended VLAN tagging operation ME is ignored for downstream IGMP/MLD and multicast frames. Value Meaning 1 G.988 Value 0 Pass the downstream IGMP/MLD and multicast traffic transparently, neither stripping nor modifying tags that may be present. 2 G.988 Value 1 Strip the outer VLAN tag (including P bits) from the downstream IGMP/MLD and multicast traffic. 3 G.988 Value 2 Add a tag onto the downstream IGMP/MLD and multicast traffic. The new tag is specified by gponOnuIgmpDownstreamTagControl. 4 G.988 Value 3 Replace the tag on the downstream IGMP/MLD and multicast traffic. The new tag is specified by gponOnuIgmpDownstreamTagControl. 5 G.988 Value 4 Replace only the VLAN ID on the downstream IGMP/MLD and multicast traffic, retaining the original DEI and P bits. The new VLAN ID is specified by gponOnuIgmpDownstreamTagControl.
What is gponOnuIgmpDownstreamTagControl?
This controls how the ONU tags downstream IGMP/MLD and multicast traffic: pass-through, strip-vlan, add-vlan, replace-tci, or replace-vlan, per ITU-T G.988 9.3.27; if not pass-through (value 1), any extended VLAN tagging operation is bypassed for these frames specifically. Admins set it to control how multicast video is tagged as it leaves the ONU toward the subscriber. For example, setting this to strip-vlan removes an operator-side VLAN tag before delivering the stream to a set-top box that expects untagged traffic.
OID Breakdown
Upper-level ancestors (8 from the standard OID tree / other modules)
| Numeric OID | Name | Module |
|---|---|---|
| 1 | iso | LANART-AGENT |
| 1.3 | org | AirPair-MIB |
| 1.3.6 | dod | AirPair-MIB |
| 1.3.6.1 | internet | AirPair-MIB |
| 1.3.6.1.4 | private | AirPair-MIB |
| 1.3.6.1.4.1 | enterprises | AirPair-MIB |
| 1.3.6.1.4.1.17409 | nscrtvRoot | NSCRTV-EPONEOC-EPON-MIB |
| 1.3.6.1.4.1.17409.2 | nscrtvEponEocTree | NSCRTV-EPONEOC-EPON-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.17409.2.8 | gponTree | NSCRTV-FTTX-GPON-MIB |
| 1.3.6.1.4.1.17409.2.8.6 | gponIgmpManagementObjects | NSCRTV-FTTX-GPON-MIB |
| 1.3.6.1.4.1.17409.2.8.6.4 | gponOnuIgmpProfile | NSCRTV-FTTX-GPON-MIB |
| 1.3.6.1.4.1.17409.2.8.6.4.1 | gponOnuIgmpProfileTable | NSCRTV-FTTX-GPON-MIB |
| 1.3.6.1.4.1.17409.2.8.6.4.1.1 | gponOnuIgmpProfileEntry | NSCRTV-FTTX-GPON-MIB |
| 1.3.6.1.4.1.17409.2.8.6.4.1.1.17 | gponOnuIgmpDownstreamTagControl | NSCRTV-FTTX-GPON-MIB |