In this video we will install and configure Cisco IOS XRv 9000 Router and Nexus 9000v 9300 Switch on GNS3
A router basically connect computers to the internet and chooses the best route for your data to travel. On the other hand a layer 3 switch function like layer 2 switch, which basically connect network devices within a Local Area Network and makes forwarding decisions based on Layer 2 information, mac addresses and also uses layer 3 information, ip addresses, to make its forwarding decisions within a Wide Area network.
Router
Routers connect computers and other devices to the Internet. A router acts as a dispatcher, choosing the best route for your information to travel. It connects your business to the world, protects information from security threats, and can even decide which computers get priority over others.
Cisco IOS XRv 9000 RouterThe Cisco IOS® XRv 9000 Router implements the feature set of Cisco IOS XR Software. Running on virtualizedgeneral x86 compute platforms, it complements existing physical Cisco® router platforms that rely on Cisco IOS XRSoftware, such as Cisco Network Convergence System routers, Cisco ASR 9000 Series Routers, and Cisco Carrier Routing System (CRS) platforms. Now, service providers can enhance their operational excellence and offerings based on physical routers - and move them easily to a virtual form factor. The Cisco IOS XRv 9000 Router offers greater agility, improved network efficiency, lower capital and operational expenditures, and the ability to efficiently scale network capacity up and down, based on demand.
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Switch
Switches building blocks for any network. They connect multiple devices, such as computers, wireless access points, printers, servers and other Networking devices.
L2
A layer 2 switch forward frames using only layer 2 information (forwarding according to destination MAC address). A layer 2 switch is aware of VLANs and builds a forwarding table based only on layer 2 information (MAC addresses) which allows it to forward within a VLAN.
L3
A layer 3 switch includes the functionality of a layer 2 switch and also is able to use layer 3 information (IP addresses) to make its forwarding decisions. So a layer 3 switch is aware of subnets and networks in addition to being aware of VLANs. A layer 3 switch builds a layer 2 forwarding table to be able to forward within a VLAN. And it also builds a layer 3 forwarding table (IP routing table) to be able to forward between VLANs and between subnets and networks.
Cisco Nexus 9000v (9300, 9500) Platform Family
The Cisco Nexus 9000v is a virtual platform family that is designed to simulate control plane aspects of a standalone switch running Cisco Nexus 9000 software. This platform family uses the same software image that runs the Cisco Nexus 9000 hardware platforms. Although the virtual platforms don't attempt to simulate any specific ASICs or hardware SKUs, they are aligned with their hardware counterparts. An optimized Cisco software data plane handles the traffic across the line card interfaces. The Cisco Nexus 9000v virtual platform family consists of two virtual platforms: Nexus 9300v and Nexus 9500v. The following sections describe the capabilities of these two platforms.
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