Value,Name,Reference 0,Unspecific,[RFC Errata 4493] 1,Unsupported Version Number,[RFC4271] 2,Bad Peer AS,[RFC4271] 3,Bad BGP Identifier,[RFC4271] 4,Unsupported Optional Parameter,[RFC4271] 5,[Deprecated],[RFC4271] 6,Unacceptable Hold Time,[RFC4271] 7,Unsupported Capability,[RFC5492] 8,Deprecated,[RFC9234] 9,Deprecated,[RFC9234] 10,Deprecated,[RFC9234] 11,Role Mismatch,[RFC9234] 12-255,Unassigned,