The SD-Access fabric uses the VXLAN data plane to provide transport of the full original Layer 2 frame and additionally uses LISP as the control plane to resolve endpoint-to-location (EID-to-RLOC) mappings. The SD-Access fabric replaces sixteen (16) of the reserved bits in the VXLAN header to transport up to 64,000 SGTs using a modified VXLAN-GPO (sometimes called VXLAN-GBP) format described in https://tools.ietf.org/html/draft-smith-vxlan-group-policy-04 . The access layer represents the network edge where traffic enters or exits the campus network towards users, devices, and endpoints. The primary function of an access layer switch is to provide network access to the users and endpoint devices such as PCs, printers, access points, telepresence units, and IP phones.

An RP can be active for multiple multicast groups, or multiple RPs can be deployed to each cover individual groups. The information on which RP is handling which group must be known by all the routers in the multicast domain. For this group-to-RP-mapping to occur, multicast infrastructure devices must be able to locate the Rendezvous Point in the network. In traditional multicast networks, this can be accomplished through static RPs, BSR (Boot Strap Router), Auto-RP, or Anycast-RP. What is the strategy for integrating new overlays with common services (for example: Internet, DNS/DHCP, data center applications)?Increased bandwidth needs—Bandwidth needs are doubling potentially multiple times over the lifetime of a network, resulting in the need for new networks to aggregate using 10 Gbps Ethernet to 40 Gbps to 100 Gbps capacities over time. For hard surfaces, you can scrape the glue off and use some rubbing alcohol instead of nail polish remover. A little time and a little elbow grease are all you need. Some Final Words Unless it is really strong fabric glue it should not take a long time to scrape it off and get the material looking like new again. You do not want to sue a sharp object as you could damage the fabric and waste all your efforts. What Will Remove Fabric Glue? The liquid stitch option is a permanent fabric glue that will not go away. One of the more positive aspects of a liquid stitch is that it will work on anything. It is a tough glue that has very strong holding power.

The Q’nique 21X Elite quilting machine gives you the furthest reach, the most advanced and intuitive features, and the most impressive quilting experience that the Q’nique machines have ever offered. The incredible power, smooth motion, and smart technology of this longarm will amaze you! SGTs tag endpoint traffic based on a role or function within the network such that the traffic is subject to role-based policies or SGACLs centrally defined within ISE which references Active Directory, for example, as the identity store for user accounts, credentials, and group membership information. Endpoints can be classified based on that identity store information and can be assigned to an appropriate scalable group. These scalable groups can then be used to create segmentation policies and virtual network assignment rules. Platform—Allows programmatic access to the network and system integration with third-party systems via APIs by using feature set bundles, configurations, a runtime dashboard, and a developer toolkit.

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Where an RP is placed in a network does not have to be a complex decision. To aid in this decision process, it can be helpful to compare PIM-ASM and PIM-SSM and understand the multicast tree building. The underlay network is defined by the physical switches and routers that are used to deploy the SD-Access network. All network elements of the underlay must establish IP connectivity via the use of a routing protocol. Instead of using arbitrary network topologies and protocols, the underlay implementation for SD-Access uses a well-designed Layer 3 foundation inclusive of the campus edge switches which is known as a Layer 3 Routed Access design. This ensures performance, scalability, and resiliency, and deterministic convergence of the network. The dedicated control plane node can be deployed completely out of band ( off-path) through virtualization. Virtualization technologies have been widely used in enterprise data centers as a reliable technology that can be extended and deployed onto critical and highly available network infrastructure. A virtualized control plane node also follows the NFV (Network Function Virtualization) concepts of Software-Defined Networking (SDN) which calls for separating network functions from specialized hardware through virtualization. SD-Access Extended Nodes capabilities are supported on the Cisco Catalyst IE-3300, Catalyst IE-3400, Catalyst IE-3400H, IE-4000 Series, IE-5000, Catalyst Digital Building, and Catalyst 3560-CX Compact Series switches. In current versions of Cisco DNA Center, Extended Nodes support AAA configuration on their host-connected ports which allows endpoints to be authenticated and authorized with ISE. Dynamic VLAN assignment places the endpoints into specific VLANs based on the credentials supplied by the user. This VLAN is being forwarded for a VRF instance on the upstream edge node creating the first layer of segmentation. SGT assignment, the second layer of segmentation, is provided within Cisco DNA Center through VLAN to SGT mappings.