Common network name abbreviation and introduction study summary

IDC: "Internet data Center (Internet Data Center) referred to as IDC means that telecommunications departments make use of existing Internet communication lines and bandwidth resources to establish a standardized environment for professional telecom computer rooms to provide enterprises and governments with a full range of server management, rental and related value-added services."

ASW (access layer switch) data exchange module accesses the switch, accesses the cloud server, and upstream interconnects the core switch DSW.

DSW (Distribution layer switch): core switch used to connect individual ASW access switches.

CSW (private network access switch): access to the backbone of the private network of users to achieve routing and distribution interaction between inside and outside the cloud network, including VPC Direct Connect access. CSW can implement VxLAN encapsulation from direct connect side to XGW.

LSW (Integrated access switch) integrated access module, cloud product service access switch, mainly provides VPC and SLB services. Various kinds of cloud product servers (XGW/SLB/OPS) are respectively interconnected with two LSW to exchange routing information through OSPF; the two LSW exchange routing information through iBGP; and LSW, DSW and CSW exchange routing information through eBGP.