Taken from http://www.openbsd.org/47.html
OpenBGPD, OpenOSPFD and other routing daemon improvements:

* Update capability code in bgpd(8) to follow RFC 5492.
* BGP MPLS VPN (RFC 4364) support added to the bgpd RIB.
* In bgpd(8), implement the RFC4486 BGP Cease Notification Message subcodes.
* It is now possible to enable/disable specific BGP capabilities.
* Update bgpctl(8) irrfilter to support IPv6 and 4-byte AS numbers.
* Minimal router-dead-time of 1 second and sub-second hello intervals added to ospfd(8). Additionally it is now possible to specify sub-second SPF timers for faster route fail-over.
* ospf6d(8) is now installed by default. The RIB can be synced with the kernel routing table now. Support for AS-ext LSA has been added. This is still work-in-progress but testing is highly appreciated.
* ldpd — the MPLS label distribution protocol daemon — is now installed by default. A custom kernel with option MPLS is needed to use it.

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