What is Cisco EVN?

Cisco R&S. Easy Virtual Network (EVN) is an IP-based network virtualization solution that helps enable network administrators to provide traffic separation and path isolation on a shared network infrastructure. EVN uses existing Virtual Route Forwarding (VRF)-Lite technology to: Simplify Layer 3 network virtualization.

Which three Protocols are supported with EVN?

Routing Protocols Supported by EVN EVN supports static routes, OSPFv2, and EIGRP for unicast routing, and PIM, MSDP, and IGMP for multicast routing.

What is vnet trunk?

When you have many VRFs it might be a bit annoying to have many sub-interfaces. To simplify the configuration, EVN uses something called a VNET Trunk: Instead of using sub-interfaces, we define the interfaces between the two ISP routers as a VNET Trunk.

What is l3 VPN?

A Layer 3 VPN links customer-edge routers (CE routers) to routers on the edge of the service provider network (PE routers). A Layer 3 VPN uses a peer routing model between local PE and CE routers that directly connect. That is, without needing multiple hops on the provider backbone to connect PE and CE router pairs.

What is RD and RT in MPLS?

The Route-Distinguisher (RD) & Route-Target (RT) are two different concepts that are both used in an MPLS VPN. The RD is used to keep all prefixes in the BGP table unique, and the RT is used to transfer routes between VRF’s/VPNS.

What is the difference between l2 VPN and l3 VPN?

Layer 2 VPNs virtualize the datalink layer (Layer 2) so as to make geographically remote sites look as if they were operating in the same LAN network. Layer 3 VPNs virtualize the network layer (Layer 3) so as to route your customer networks over a public infrastructure like Internet or Service provider backbone.

What is the use of VRRP?

VRRP is an IP routing redundancy protocol designed to allow for transparent failover at the first-hop IP router. VRRP enables a group of routers to form a single virtual router . The LAN clients can then be configured with the virtual router as their default gateway.

Why we use BGP in MPLS?

If you have specified the VPN-IPv4 address family, you can configure virtual private networks across an IP backbone. BGP carries routing information for the network and MPLS labels, whereas MPLS transports the data traffic.

What is VRF In MPLS?

VRF Definition Virtual routing and forwarding (VRF) is an IP-based computer network technology that enables the simultaneous co-existence of multiple virtual routers (VRs) as instances or virtual router instances (VRIs) within the same router.

What is RD and RT in VRF?

What is the EVN network setup?

This network setup is used in order to illustrate the EVN configuration and show commands: Here are some important notes about this setup: Two VRFs are defined ( CUST-A and CUST-B) that are carried out from the core of the network through VNET trunks.

Is there a free version of Cisco configuration professional?

The actual developer of the free software is Cisco Systems. The program’s installer is commonly called CiscoCP.exe or prelaunch.exe etc. Cisco Configuration Professional is developed for Windows XP/Vista/7/8/10 environment, 32-bit version. The program relates to Internet & Network Tools.

What are the features of Cisco configuration professional?

Cisco Configuration Professional offers smart wizards and advanced configuration support for LAN and WAN interfaces, Network Address Translation (NAT), stateful and application firewall policy, IPS, IPSec and SSL VPN, QoS, and Cisco Network Admission Control policy features.

What is the EVN VNET trunk?

To simplify the configuration, EVN uses something called a VNET Trunk: Instead of using sub-interfaces, we define the interfaces between the two ISP routers as a VNET Trunk. EVN will automatically create sub-interfaces for each VRF for us, I’ll show you this in a bit.