[mpls-linux-general] Route Alert Option

[Rajesh P J. <rp...@sa...>]

"Hi",
                I have 2 questions on IP Route Alert Options (and , Of
course corresponding to the MPLS Route Alert Label (LABEL Value 1)).

1.    When a  LSR receives a Labelled packet with a value of 1, what is
the treatment given to that labelled packet. (In the diagram LSR).

2.     When an Ingress Node (In the Diagram LER A), when an IP Packet
comes with IP Route Alert Option, How is the MPLS labels that packet ??
I mean, does it label it with a value of 1 or does it look into the LIB
for the corresponding destination address of the packet ???

                        Please throw light on these questions and
clarify how does source-forge linux MPLS forwarding Engine (JRL's
Implementation) treats the above 2 cases.

LER A --------- LSR ------------- LER B

TIA
        Rajesh P Jain