Home > EVN & VRF Questions 2

EVN & VRF Questions 2

July 21st, 2019 in ROUTE 300-101 Go to comments

Question 1


Route replication allows shared services because routes are replicated between virtual networks and clients who reside in one virtual network can reach prefixes that exist in another virtual network.

Reference: http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/evn/configuration/xe-3s/evn-xe-3s-book/evn-shared-svcs.html

Question 2

Question 3


Path isolation can be achieved by using a unique tag for each Virtual Network (VN) -> Answer A is correct.

Instead of adding a new field to carry the VNET tag in a packet, the VLAN ID field in 802.1q is repurposed to carry a VNET tag. The VNET tag uses the same position in the packet as a VLAN ID. On a trunk interface, the packet gets re-encapsulated with a VNET tag. Untagged packets carrying the VLAN ID are not EVN packets and could be transported over the same trunk interfaces -> Answer E is correct.

Reference: http://www.cisco.com/c/en/us/products/collateral/ios-nx-os-software/layer-3-vpns-l3vpn/whitepaper_c11-638769.html

Question 4


We are trying to ping the in vrf Yellow but the Serial0/0 interfaces of both routers do not belong to this VRF so the ping fails. We need to configure S0/0 interfaces with the “ip vrf forwarding Yellow” (under interface S0/0) in order to put these interfaces into VRF Yellow.

Question 5

Question 6

Question 7


In the link http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst4500/12-2/25ew/configuration/guide/conf/vrf.html there is a notice about route-target command: “Note: This command is effective only if BGP is running.” -> C is correct.

Answer A & F are not correct as only route distinguisher (RD) identifies the customer routing table and “allows customers to be assigned overlapping addresses”.

Answer E is not correct as “When BGP is configured, route targets are transmitted as BGP extended communities”

Question 8


With VRF-Lite, if you want to send traffic for multiple virtual networks (that is, multiple VRFs) between two routers you need to create a subinterface for each VRF on each router -> VRF-Lite requires subinterfaces. However, with Cisco EVN, you instead create a trunk (called a Virtual Network (VNET) trunk) between the routers. Then, traffic for multiple virtual networks can travel over that single trunk interface, which uses tags to identify the virtual networks to which packets belong.

Note: Both Cisco EVN and VRF-Lite allow a single physical router to run multiple virtual router instances, and both technologies allow routes from one VRF to be selectively leaked to other VRFs. However, a major difference is the way that two physical routers interconnect. With VRF-Lite, a router is configured with multiple subinterfaces, one for each VRF. However, with Cisco EVN, routers interconnect using a VNET trunk, which simplifies configuration.

Reference: CCNP Routing and Switching ROUTE 300-101 Official Cert Guide

All EVNs within a trunk interface share the same IP infrastructure as they are on the same physical interface -> Answer C is correct.

With EVNs, a trunk interface is shared among VRFs so each command configured under this trunk is applied by all EVNs -> Answer E is correct.

Question 9

Question 10

  1. Anonymous
    June 8th, 2018

    Why there are no questions ?!!?!?

  2. Because
    November 30th, 2018

    you are to dumb to find the dump

  3. gigo
    December 5th, 2018

    how find the question

  4. Raj
    December 17th, 2018

    Can you please any one share the Latest CCNP route 300-101 valid dump.

  5. José
    January 7th, 2019

    .Route replication is not supported with BGP.
    .An EVN interface uses two types of interfaces: edge interfaces and trunk interfaces. An interface can be an edge or trunk interface, but not both.
    For me the best answer is A.

  6. dude
    January 14th, 2019

    key word on Q1 is “shared services”

    At the bottom of your link:

    Configuring Easy Virtual Network shared services and route replication

    Q9: To me it seems like it should actually read:

    What value identifies VRFs in a EVN?

    C: virtual network tag

    R2# sh ip vrf detail
    VRF blue (VRF Id = 1); default RD ; default VPNID
    Et0/0.1003 Et0/1.1003
    Tag 1003

  7. Cisco
    March 20th, 2019

    Had taken route exam last week…didn’t go well. Planning a retake in 5 days later. Key questions included several multiple choice and drag and drop from Most popular questions that I won’t find under the list on right side of this material. Sim came from PBR and Redistribution, running show command for OSPF (show ip ospf database).

  8. Rocco
    February 2nd, 2020
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