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Addressing ECMP Loadsharing
IP PW Packets need to follow the same path with PW OAM ones
OAM Packets directed based on Labels and I/f
Disambiguate the PW packets from an IP flow by using a CW
CW’s 0000 instead of IPv4
VC Label
Control Word
Tunnel Label
OAM Payload VCCV Ping, BFD
Local Header
PPP DLL Protocol Number | reserved | 0 0 0 1
4 Bytes (OAM) PID
VC Label
Control Word
Tunnel Label
Native Service (IP) Payload
Local Header
Sequence | Length | FRG | Flags | 0 0 0 0
4 Bytes CW
MUST use CW to avoid that OAM and PW IP payload take different path
PPT Version