Abstract:
Traditional per-flow routing increases communication complexity of both control and data planes because it requires a direct interaction between each node that is included in traffic paths and controller. Segment Routing (SR) only maintains per-flow states at the ingress node and no needs to install flow rules at the intermediate devices. Therefore, SR has been popular as an alternative traffic engineering (TE) solution in the software defined network. This paper implements SR-TE in ONOS controller and also demonstrates fine gained TE by using SR’s tunnels and policies in the software defined network. Moreover, we discuss SR without policies and tunnels and SR-TE with delay variation of ICMP packet.
