hwRsvpTeSenderFrrHopLimit 1.3.6.1.4.1.2011.5.25.148.1.2.1.66

The maximum number of extra hops the backup path is allowed to take, from current node (a PLR) to an MP, with PLR and MP excluded from the count. For example, hop-limit of 0 means that only direct links between PLR and MP can be considered.