OID value: 1.3.6.1.2.1.6.3
OID description:
tcpRtoMax OBJECT-TYPE SYNTAX INTEGER ACCESS read-only STATUS mandatory DESCRIPTION "The maximum value permitted by a TCP implementation for the retransmission timeout, measured in milliseconds. More refined semantics for objects of this type depend upon the algorithm used to determine the retransmission timeout. In particular, when the timeout algorithm is rsre(3), an object of this type has the semantics of the UBOUND quantity described in RFC 793." ::= { tcp 3 }
See also the OID Repository website reference for 1.3.6.1.2.1.6.3