Novel scheme for packet forwarding without header modifications in optical networks

Abstract

Abstract-We present a novel scheme for packet forwarding in optical packet-switched networks and we further demonstrate its good scalability through simulations. The scheme requires neither header modification nor any label distribution protocol, thus reducing component cost while simplifying network management.

Flowtable-Free Routing for Data Center Networks: A Software-Defined Approach

“…References [1], [10] are most related to our work. In [10], the proposed scheme does not require header modification in each router.…”

“…In [10], the proposed scheme does not require header modification in each router. A label is computed by the Chinese Remainder Theorem and appended to each packet.…”

“…A). Based on [10], reference [1] further shows how to replace the MAC address by the label. So no extra header is needed.…”

“…References [1], [10] exploits CRT for flowtable-free routing. The basic idea is to encode forwarding information of a packet into a label (i.e., ) and replace the MAC address of a packet with the label.…”

“…We consider a SDN network domain consisting of a controller and a set of switches, where [10], in order to make the CRT congruence system solvable, integers 1 , 2 , ⋅ ⋅ ⋅ , are needed to be pairwise relatively primes for these switches. We make the following observations on [1], [10]:…”