Contents
- 1 What is SD-access fabric?
- 2 Which protocol does an SD-access Wireless Access Point use for its fabric data plane?
- 3 Which two SD-access elements are outside the fabric?
- 4 What is SD WAN used for?
- 5 What are two main components of SD-Access choose two?
- 6 What is the data plan technology used in SD-access?
- 7 What is SD-WAN in simple terms?
- 8 What are the key building blocks of SD-access overlay network?
What is SD-access fabric?
SD-Access automates user and device policy for any application across the wireless and wired network via a single network fabric. And SD-Access is a transformational shift. It allows IT to set network access in minutes for any user, device, or application, without compromising on security.
Which protocol does an SD-access Wireless Access Point use for its fabric data plane?
The CAPWAP control plane goes to the WLC using fabric as the transport. Fabric is enabled per service set identifier (SSID): For a fabric-enabled SSID, the AP converts 802.11 traffic to 802.3 and encapsulates it into VXLAN, encoding the VNI and SGT information of the client.
Which two SD-access elements are outside the fabric?
Common network services such as DNS, DHCP, WLCs, and Cisco DNA Center are generally deployed outside the fabric site. To connect the SD-Access network to these services, extend your existing enterprise network to the border nodes as shown in later procedures.
How does the Sgt information carried within the SD-access fabric?
Within the SD-Access fabric, information identifying the virtual network is carried in the VXLAN Network Identifier (VNI) field within the VXLAN header as seen in Figure 1.
What is difference between SD Wan and SD-access?
SD-Access as name suggested Software defined Access for changing the architecture of the LAN networks while SD-WAN as software defined WAN which can automate and may be next generation networks over the MPLS/VPLS.
What is SD WAN used for?
A Software-defined Wide Area Network (SD-WAN) is a virtual WAN architecture that allows enterprises to leverage any combination of transport services – including MPLS, LTE and broadband internet services – to securely connect users to applications.
What are two main components of SD-Access choose two?
SD-Access consists of 3 categories of components: Network fabric – Switches, routers, wireless LAN controllers and access points.
What is the data plan technology used in SD-access?
SD-access uses a modified version of VXLAN on the data plane, one of the reasons is that VXLAN supports L2 encapsulation. On the policy plane we use Cisco TrustSec, Scalable Group Tags (SGT), and the SGT Exchange Protocol (SXP).
What is the purpose of an SD-access fabric control plane node?
The Cisco SD-Access Border node is responsible for connecting fabric to rest of the world and hence we will focus on the different connectivity models that will be provided by the border node and discuss the various designs along with scale and platform support.
Is SD-WAN better than MPLS?
Compared to Multiprotocol Label Switching (MPLS), Software-defined Wide Area Networks (SD-WAN) can be less expensive, more secure, and provide higher performance. MPLS can have steep bandwidth costs, while SD-WAN protects your network from vulnerabilities that MPLS cannot.
What is SD-WAN in simple terms?
SD-WAN stands for software-defined wide area network (or networking). A WAN is a connection between local area networks (LANs) separated by a substantial distance—anything from a few miles to thousands of miles. The term software-defined implies the WAN is programmatically configured and managed.
What are the key building blocks of SD-access overlay network?
The building blocks of an SD-Access network include a border node, a control plane, and a fabric edge. The border node serves as a gateway between an SD-Access fabric domain and the network outside the fabric.