1. OSPF with BFD (bidirection forwarding dection)
The loss of a neighbor relationship was detected in a microsecond-level unit of time
Faster Hello and dead interval. (Dead Interval=1s)
2. OSPF Link State Database overload Protection
Prevent Lsdb from exceeding the size of the expected setting
3. MPLS LDP-IGP Synchronization and Autoconfiguration
Synchronization between LDP and IGP
Automatic configuration of LDP
4. Interface based OSPF Enable
You can activate OSPF in interface mode without having to configure the network command in the router mode
5. RFC 3623 OSPF Graceful Restart
RFC-defined OSPF graceful restart (using Grace LSA), formerly Cisco uses its own NSF
6. Quantum Based CPU Releasing
When a large number of OSPF packets or LSA is received, the CPU is not fully used on the SPF algorithm.
7. OSPF Hello Process Optimization
Let OSPF support more neighbor and faster timer (can support more than 700 neighbor,dead interval=1s)
8. tunable OSPF Queue Sizes
Adjustable OSPF queues enable OSPF to converge faster
9. Interface Scoped Debugging
More human-oriented debug
Debug Condition Interface fa0/0
Debug IP OSPF adjacency
OSPF and Multi-topology Routing
Multiple logical topologies can be defined in a physical topology (using the new Lsa,mtr-router LSA), each business can take a different link, and support backup topology
OSPF local RIB and Prefix prioritization
OSPF has its own local rib, and only when SPF is finished will the local rib be synchronized to global rib
You can set the priority for different prefix, the highest priority is inserted into the global rib, second time/32 prefix, and finally the other prefixes
OSPF Link and Prefix Attributes
Prefix has attributes, which means it's easier to do control, even if you can set which prefix first converge
Generalized TTL security mechanism
Routers will only accept ttl=254 OSPF packet, thus avoiding multiple hops attack
OSPF Prefix Suppression
The addresses of previously activated OSPF interfaces are bound to be published and can now be set to not publish these addresses.
OSPF Graceful Shutdown
Flexible shutdown to minimize disruption to the network
OSPFv3 Fast Convergence
V3 can also be like V2, the network oscillation will not immediately restart SPF calculation.
OSPF Event Logging
The OSPF event can also be recorded in the log.
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