In the VDC embedding problem, a request can be formulated as a set of Virtual machines, a set of virtual switches and a set of virtual links. From the literature, i understand how embedding the virtual machines and the virtual links. But,the embedding of virtual switches into physical switches is not clear. Did you have a better explanation for that '"embedding virtual switches onto physical switches ?
Dear Rym,
the idea of "embedding virtual switches onto physical switches" is currently very important and future-oriented. This idea is used to build the virtual Ethernet networks according to the concepts VPLS (Virtual Private LAN Service) and EVPN (Ethernet Virtual Private Network). A VPLS or an EVPN can form a virtual and worldwide Ethernet.
An "embedded virtual switch onto physical switch" forms:
- an instance EVI (EVPN Instance) at EVPN,
- an instance VSI (Virtual Switch Instance) at VPLS.
At EVPN, EVIs are embedded in the Provider Edges (L2 / L3-Switsches) and connected to each other via MPLS Connections. The contents of Forwarding Tables are exchanged between EVIs using centrally located Router Reflectors. As a result, all EVIs of an EVPN behave as a single virtual distributed Ethernet switch. Such networking of EVIs forms an EVPN. In fact, an EVPN can be considered as a virtual distributed Ethernet switch.
A similar idea, as a networking of VSIs, is realized at VPLS.
These ideas briefly explained here show the figures in my articles:
- EVPN Ethernet Virtual Private Network
https://www.researchgate.net/publication/307976458_EVPN_Ethernet_Virtual_Private_Network
See the figures: 07711, 07712, 07714, 07715 and 07716
- VPLS Virtual Private LAN Service
https://www.researchgate.net/publication/305330857_VPLS_Virtual_Private_LAN_Service
See the figures: 007621, 007623, 007624, 007625 and 007626
A lot of success and best regards
Anatol Badach
https://communities.vmware.com/thread/571543
http://searchservervirtualization.techtarget.com/definition/virtual-switch