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The second is patch to add or skip RD 0:0 label for the next_hop address in MP_REACH_NLRI attribute. According to RFC, next_hop address seems to be required to contain RD of 0 when advertise VPN prefix. This is defined in RFC 4659(3.2.1.1. BGP Speaker Requesting IPv6 Transport) for VPN-IPv6 and in RFC 4364(4.3.2. Route Distribution Among PEs by BGP) for VPN-IPv4. Signed-off-by: Hiroshi Yokoi <yokoi.hiroshi@po.ntts.co.jp> Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>