Selecting a link of a link group based on contents of a concealed header

摘要

Methods, devices, and systems for selecting a link of a link group based on contents of a concealed header are disclosed. A network node operating method includes a first network node receiving a packet and concluding that a link group connecting the first network node to a second network node will forward the packet to the second network node. The method further includes determining that the packet includes a tunnel header and an original header concealed by the tunnel header, selecting one link from among a set of parallel links of the link group based at least on one or more fields of the concealed original header, and forwarding the packet to the second network node via the selected link.

主权项

1. A network node operating method comprising:
a source node receiving a packet having an original header including a destination node address, the source node forwarding the packet to a first tunnel node; the first tunnel node adding a tunnel header to the packet, the tunnel header including a destination node tunnel address different from the destination node address; a first network node receiving the packet from the first tunnel node; the first network node concluding that a link group connecting the first network node to a second network node will forward the packet to the second network node; the first network node determining that the packet comprises the tunnel header and the original header concealed by the tunnel header; first selecting a first link from among a set of parallel links of the link group based at least on one or more fields of the tunnel header; determining that a current capacity consumption of the selected first link is approximately at a maximum capacity; second selecting a second link from among the set of parallel links of the link group based on one or more fields of the concealed original header, the selected second link being different than the selected first link; and forwarding the packet to the second network node via the selected second link.