Does ZebOS support DiffServ extensions?
A. Yes, to provide Quality of Service (QoS) in today’s networks, many QoS methods and models have been proposed, such as Integrated Services (Intserv) and Differentiated Services (Diffserv). ZebOS provides two methods to take advantage of DiffServ: 1) RSVPTE-DS – ZebOS implementation of RFC 3270 provides a flexible solution for support of Differentiated Services over MPLS networks. The extensions enable RSVP-TE to set up a DiffServ LSP using RSVP signaling. The DiffServ Object is added into the RSVP Path message, and passed on into the next node. ZebOS supports both the EXP-Inferred PHB Scheduling Class LSP (E-LSP) and Label-Only-Inferred PHB Scheduling Class LSP (L-LSP). 2) RSVPTE-DSTE – ZebOS implementation of draft-ietf-tewg-diff-te-proto-04.txt allows achieving a finer-grained optimization of transmission resources and further enhanced network performance and efficiency; it is desirable to perform traffic engineering at a per-diffserv-class level, instead of at an aggregate level,
