All MIBs › Wellfleet-OSPF-MIB › wfOspfMulticastExtensions
wfOspfMulticastExtensions
Module: Wellfleet-OSPF-MIB
OID (symbolic): Wellfleet-OSPF-MIB::wfOspfMulticastExtensions
OID (numeric): 1.3.6.1.4.1.18.3.5.3.2.3.1.21
Node type: OBJECT-TYPE
Type: INTEGER
Access: read-write
Description: A Bit Mask indicating whether the router is forwarding IP multicast (Class D) datagrams based on the algorithms defined in the Multi- cast Extensions to OSPF.
Bit 0, if set, indicates that the router can forward IP multicast datagrams in the router's directly attached areas (called intra-area mul- ticast routing).
Bit 1, if set, indicates that the router can forward IP multicast datagrams between OSPF areas (called inter-area multicast routing).
Bit 2, if set, indicates that the router can forward IP multicast datagrams between Auto- nomous Systems (called inter-AS multicast rout- ing).
Only certain combinations of bit settings are allowed, namely: 0 (no multicast forwarding is enabled), 1 (intra-area multicasting only), 3 (intra-area and inter-area multicasting), 5 (intra-area and inter-AS multicasting) and 7 (multicasting everywhere). By default, no mul- ticast forwarding is enabled.
What is wfOspfMulticastExtensions?
A bitmask enabling Multicast OSPF (MOSPF) forwarding scopes: bit 0 for intra-area multicast routing, bit 1 for inter-area, and bit 2 for inter-AS multicast routing, with only certain combinations (0, 1, 3, 5, 7) valid. An admin deploying IP multicast over OSPF sets this to 7 to enable multicast forwarding everywhere, or leaves it at the default 0 (disabled) on routers that don't need MOSPF.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.18.3.5.3.2.3.1.21 snmpwalk -v2c -c public <target> Wellfleet-OSPF-MIB::wfOspfMulticastExtensions
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.18.3.5.3.2.3.1.21.1 snmpget -v2c -c public <target> Wellfleet-OSPF-MIB::wfOspfMulticastExtensions.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.4.1.18.3.5.3.2.3.1.21.1 i <value>
Start monitoring Wellfleet/Bay Networks routers (OSPF neighbor-adjacency/LSA-database status) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the Wellfleet-OSPF-MIB::wfOspfMulticastExtensions OID value, configure state conditions and alerts, and monitor any Wellfleet/Bay Networks routers (OSPF neighbor-adjacency/LSA-database status) from a single console.
OID Breakdown
Upper-level ancestors (13 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 |
| 1.3.6.1.4.1.18 | wellfleet | CMU-MIB |
| 1.3.6.1.4.1.18.3 | wfSwSeries7 | Wellfleet-COMMON-MIB |
| 1.3.6.1.4.1.18.3.5 | wfApplication | Wellfleet-COMMON-MIB |
| 1.3.6.1.4.1.18.3.5.3 | wfInternet | Wellfleet-COMMON-MIB |
| 1.3.6.1.4.1.18.3.5.3.2 | wfIpRouting | Wellfleet-COMMON-MIB |
| 1.3.6.1.4.1.18.3.5.3.2.3 | wfOspfGroup | Wellfleet-COMMON-MIB |
| 1.3.6.1.4.1.18.3.5.3.2.3.1 | wfOspfGeneralGroup | RFC7777-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.18.3.5.3.2.3.1.21 | wfOspfMulticastExtensions | Wellfleet-OSPF-MIB |