Update RFC references

 * stale routes after reestablishment of BGP session during graceful restart.

 *

 * Supported standards:

 * <itemize>

 * <item> <rfc id="4271"> - Border Gateway Protocol 4 (BGP)

 * <item> <rfc id="1997"> - BGP Communities Attribute

 * <item> <rfc id="2385"> - Protection of BGP Sessions via TCP MD5 Signature

 * <item> <rfc id="2545"> - Use of BGP Multiprotocol Extensions for IPv6

 * <item> <rfc id="2918"> - Route Refresh Capability

 * <item> <rfc id="3107"> - Carrying Label Information in BGP

 * <item> <rfc id="4360"> - BGP Extended Communities Attribute

 * <item> <rfc id="4364"> - BGP/MPLS IPv4 Virtual Private Networks

 * <item> <rfc id="4456"> - BGP Route Reflection

 * <item> <rfc id="4486"> - Subcodes for BGP Cease Notification Message

 * <item> <rfc id="4659"> - BGP/MPLS IPv6 Virtual Private Networks

 * <item> <rfc id="4724"> - Graceful Restart Mechanism for BGP

 * <item> <rfc id="4760"> - Multiprotocol extensions for BGP

 * <item> <rfc id="4798"> - Connecting IPv6 Islands over IPv4 MPLS

 * <item> <rfc id="5065"> - AS confederations for BGP

 * <item> <rfc id="5082"> - Generalized TTL Security Mechanism

 * <item> <rfc id="5492"> - Capabilities Advertisement with BGP

 * <item> <rfc id="5549"> - Advertising IPv4 NLRI with an IPv6 Next Hop

 * <item> <rfc id="5575"> - Dissemination of Flow Specification Rules

 * <item> <rfc id="5668"> - 4-Octet AS Specific BGP Extended Community

 * <item> <rfc id="6286"> - AS-Wide Unique BGP Identifier

 * <item> <rfc id="6608"> - Subcodes for BGP Finite State Machine Error

 * <item> <rfc id="6793"> - BGP Support for 4-Octet AS Numbers

 * <item> <rfc id="7313"> - Enhanced Route Refresh Capability for BGP

 * <item> <rfc id="7606"> - Revised Error Handling for BGP UPDATE Messages

 * <item> <rfc id="7911"> - Advertisement of Multiple Paths in BGP

 * <item> <rfc id="7947"> - Internet Exchange BGP Route Server

 * <item> <rfc id="8092"> - BGP Large Communities Attribute

 * <item> <rfc id="8203"> - BGP Administrative Shutdown Communication

 * <item> <rfc id="8212"> - Default EBGP Route Propagation Behavior without Policies

 * </itemize>

 * RFC 4271 - Border Gateway Protocol 4 (BGP)

 * RFC 1997 - BGP Communities Attribute

 * RFC 2385 - Protection of BGP Sessions via TCP MD5 Signature

 * RFC 2545 - Use of BGP Multiprotocol Extensions for IPv6

 * RFC 2918 - Route Refresh Capability

 * RFC 3107 - Carrying Label Information in BGP

 * RFC 4360 - BGP Extended Communities Attribute

 * RFC 4364 - BGP/MPLS IPv4 Virtual Private Networks

 * RFC 4456 - BGP Route Reflection

 * RFC 4486 - Subcodes for BGP Cease Notification Message

 * RFC 4659 - BGP/MPLS IPv6 Virtual Private Networks

 * RFC 4724 - Graceful Restart Mechanism for BGP

 * RFC 4760 - Multiprotocol extensions for BGP

 * RFC 4798 - Connecting IPv6 Islands over IPv4 MPLS

 * RFC 5065 - AS confederations for BGP

 * RFC 5082 - Generalized TTL Security Mechanism

 * RFC 5492 - Capabilities Advertisement with BGP

 * RFC 5549 - Advertising IPv4 NLRI with an IPv6 Next Hop

 * RFC 5575 - Dissemination of Flow Specification Rules

 * RFC 5668 - 4-Octet AS Specific BGP Extended Community

 * RFC 6286 - AS-Wide Unique BGP Identifier

 * RFC 6608 - Subcodes for BGP Finite State Machine Error

 * RFC 6793 - BGP Support for 4-Octet AS Numbers

 * RFC 7313 - Enhanced Route Refresh Capability for BGP

 * RFC 7606 - Revised Error Handling for BGP UPDATE Messages

 * RFC 7911 - Advertisement of Multiple Paths in BGP

 * RFC 7947 - Internet Exchange BGP Route Server

 * RFC 8092 - BGP Large Communities Attribute

 * RFC 8203 - BGP Administrative Shutdown Communication

 * RFC 8212 - Default EBGP Route Propagation Behavior without Policies

 * draft-ietf-idr-bgp-extended-messages-27

 * draft-uttaro-idr-bgp-persistence-04

 */

#undef LOCAL_DEBUG

 * - RFC 5838 - OSPFv3 Support of Address Families

 * - RFC 6549 - OSPFv2 Multi-Instance Extensions

 * - RFC 6987 - OSPF Stub Router Advertisement

 * - RFC 7166 - OSPFv3 Authentication Trailer

 */

#include <stdlib.h>