System and method for implementing label switch router (LSR) overload protection

摘要

A method and apparatus for implementing Label Information Base (LIB) overload protection for a respective Forwarding Equivalency Class (FEC) type associated with a Label Switched Path (LSP).

主权项

1. A method for implementing an overload protection mechanism at a Label Switch Router (LSR) supporting one or more Label Switched Paths (LSPs), the method comprising:
in response to a determination that an overload threshold parameter associated with any of a data plane resource or a LIB (Label Information Base) resource is indicative of an overload condition for at least one forwarding equivalency class (FEC) type associated with a corresponding LSP, propagating toward downstream LSRs of said one or more LSPs a Label Distribution Protocol (LDP) message adapted to stop new label transmissions associated with said data plane resource or LIB resource for the at least one FEC type.