All MIBs › FSM7326-ROUTING-MIB › agentRouterOspfRFC1583CompatibilityMode
agentRouterOspfRFC1583CompatibilityMode
Module: FSM7326-ROUTING-MIB
OID (symbolic): FSM7326-ROUTING-MIB::agentRouterOspfRFC1583CompatibilityMode
OID (numeric): 1.3.6.1.4.1.4526.1.9.2.4.11
Node type: OBJECT-TYPE
Type: INTEGER
Access: read-write
Description: From RFC2328: Controls the preference rules used in Section 16.4 when choosing among multiple AS-external-LSAs advertising the same destination. When set to 'enabled', the preference rules remain those specified by RFC 1583 ([Ref9]). When set to 'disabled', the preference rules are those stated in
Section 16.4.1, which prevent routing loops when AS- external-LSAs for the same destination have been originated from different areas. Set to 'enabled' by default.
In order to minimize the chance of routing loops, all OSPF routers in an OSPF routing domain should have RFC1583Compatibility set identically. When there are routers present that have not been updated with the functionality specified in Section 16.4.1 of this memo, all routers should have RFC1583Compatibility set to 'enabled'. Otherwise, all routers should have RFC1583Compatibility set to 'disabled', preventing all routing loops.
What is agentRouterOspfRFC1583CompatibilityMode?
Controls whether this router uses the older RFC 1583 tie-breaking rules (enable, the default) or the RFC 2328 Section 16.4.1 rules (disable) when choosing among multiple external routes to the same destination, which affects routing-loop prevention across areas. Per RFC 2328's own guidance, an admin should set this identically on every OSPF router in the domain, only switching all of them to disable(2) once none of the routers still lack the newer loop-prevention logic.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.4526.1.9.2.4.11 snmpwalk -v2c -c public <target> FSM7326-ROUTING-MIB::agentRouterOspfRFC1583CompatibilityMode
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.4526.1.9.2.4.11.1 snmpget -v2c -c public <target> FSM7326-ROUTING-MIB::agentRouterOspfRFC1583CompatibilityMode.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.4.1.4526.1.9.2.4.11.1 i <value>
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OID Breakdown
Upper-level ancestors (9 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 |
| 1.3.6.1.4.1.4526 | netgear | FSM726S-MIB |
| 1.3.6.1.4.1.4526.1 | snmpManagedSwitch | FSM726S-MIB |
| 1.3.6.1.4.1.4526.1.9 | fsm7326 | FSM7326-REF-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.4526.1.9.2 | fsm7326Routing | FSM7326-ROUTING-MIB |
| 1.3.6.1.4.1.4526.1.9.2.4 | agentRouterOspfConfigGroup | FSM7326-ROUTING-MIB |
| 1.3.6.1.4.1.4526.1.9.2.4.11 | agentRouterOspfRFC1583CompatibilityMode | FSM7326-ROUTING-MIB |