博文

目前显示的是 五月, 2022的博文

Asterfusion SONiC based EVPN-VXLAN Cloud Switch

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  With the development of the Internet, the number and scale of data centers have exploded. With the increasing of data center services and the demands of users, the functions of data centers become increasingly complex , while the operation and maintenance management become more and more difficult as well. Due to the the consideration of data disaster recovery, enterprise branches establishment, and resource utilization, a large enterprise’s information system may be deployed in multiple regions.  Then,interconnecting these data center sites to reduce management costs and flexibly expand services has become an important task for enterprises. What is EVPN-VXLAN? Ethernet VPN -Virtual Extensible LAN (EVPN-VXLAN) offers a common protocol for large corporations to manage their campus and data center networks. The EVPN-VXLAN architecture supports Layer 2/ 3 networking with simplicity, scalability, security and agility while effectively reducing OpEx. EVPN or Ethernet VPN is a VPN ...

Why VXlan is Crucial for Cloud Data Centers?

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VxLAN (  Vitual eXtensible Local Area Network ) is essentially a tunnel encapsulation technology. It uses the common tactic of the TCP/IP stack – encapsulation/decapsulation technology, which encapsulates Layer2 Ethernet frames into Layer4 UDP datagrams and then transmitted in the Layer3 network. The effect is like Layer 2 Ethernet frames being transmitted in one broadcast domain, which actually crossing the Layer3 network , but does not perceive the L3 network’s presence. With the development of network technology, cloud computing has become a new trend in IT construction , in terms of its advantages in system utilization, low management costs, and flexibility/scalability.As one of the core technologies of cloud computing – server virtualization has been applied widely , which greatly enhances the computing density of the data centers. At the same time, the demand for unlimited migration of VMS on layer 2 networks is becoming increasingly urgent . In order to cope with the challen...