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Question 1

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Exhibit Referring to the exhibit, a working L3VPN exists that connects VPN-A sites CoS is configured correctly to match on the MPLS EXP bits of the LSP, but when traffic is sent from Site-1 to Si

Question 2

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Exhibit You want to implement the BGP Generalized TTL Security Mechanism (GTSM) on the network Which three statements are correct in this scenario? (Choose three)

Question 3

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Which two statements are correct about a sham link? (Choose two.)

Question 4

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Exhibit R1 and R8 are not receiving each other's routes Referring to the exhibit, what are three configuration commands that would solve this problem? (Choose three.)

Question 5

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You are a network architect for a service provider and want to offer Layer 2 services to your customers You want to use EVPN for Layer 2 services in your existing MPLS network. Which two statements

Question 6

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After a recent power outage, your manager asks you to investigate ways to automatically reduce the impact caused by suboptimal routing in your OSPF and OSPFv3 network after devices reboot. Which th

Question 7

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Exhibit You are running a service provider network and must transport a customer's IPv6 traffic across your IPv4-based MPLS network using BGP You have already configured mpis ipv6-tunneling on yo

Question 8

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You want to ensure that L1 IS-IS routers have only the most specific routes available from L2 IS-IS routers. Which action accomplishes this task?

Question 9

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Your organization manages a Layer 3 VPN for multiple customers To support advanced route than one BGP community on advertised VPN routes to remote PE routers. Which routing-instance configuration p

Question 10

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Exhibit A network designer would like to create a summary route as shown in the exhibit, but the configuration is not working. Which three configuration changes will create a summary route? (Cho

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Related questions

Exhibit R1 and R8 are not receiving each other's routes Referring to the exhibit, what are three configuration commands that would solve this problem? (Choose three.)

Exhibit A network designer would like to create a summary route as shown in the exhibit, but the configuration is not working. Which three configuration changes will create a summary route? (Choose three.)

Refer to the exhibit. Click the Exhibit button. Referring to the exhibit, you must provide VRF Internet access over a single connection for VPN-A Site 1, which connects to PE-1. Which two statements are correct in this scenario? (Choose two.)

Your organization manages a Layer 3 VPN for multiple customers To support advanced route than one BGP community on advertised VPN routes to remote PE routers. Which routing-instance configuration parameter would support this requirement?

Exhibit You want to implement the BGP Generalized TTL Security Mechanism (GTSM) on the network Which three statements are correct in this scenario? (Choose three)

Exhibit. Referring to the exhib.t, what must be changed to establish a Level 1 adjacency between routers R1 and R2?

Exhibit You are running a service provider network and must transport a customer's IPv6 traffic across your IPv4-based MPLS network using BGP You have already configured mpis ipv6-tunneling on your PE routers. Which two statements are correct about the BGP configuration in this scenario? (Choose two.)

Exhibit Referring to the exhibit, a working L3VPN exists that connects VPN-A sites CoS is configured correctly to match on the MPLS EXP bits of the LSP, but when traffic is sent from Site-1 to Site-2, PE-2 is not classifying the traffic correctly What should you do to solve the problem?

A router running IS-IS is configured with an ISO address of 49.0001.00a0.c96b.c490.00. Which part of this address is the system ID?

Your network is receiving the 203.0.113.0/24 network using EBGP from AS 64500 and AS 64501. Both of these advertisements have identical local-preference values, AS-path lengths, and BGP origin codes. You want to influence the way your AS sends traffic to the 203.0.113.0/24 network. In this scenario, which attribute would you consider next when selecting the best path?

Question 27 - JN0-664 discussion

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Exhibit

Which two statements about the output shown in the exhibit are correct? (Choose two.)

A.

The PE is attached to a single local site.

B.

The connection has not flapped since it was initiated.

C.

There has been a VLAN ID mismatch.

D.

The PE router has the capability to pop flow labels

Suggested answer: A, D

Explanation:

According to1and2, BGP Layer 2 VPNs use BGP to distribute endpoint provisioning information and set up pseudowires between PE devices. BGP uses the Layer 2 VPN (L2VPN) Routing Information Base (RIB) to store endpoint provisioning information, which is updated each time any Layer 2 virtual forwarding instance (VFI) is configured. The prefix and path information is stored in the L2VPN database, which allows BGP to make decisions about the best path.

In the output shown in the exhibit, we can see some information about the L2VPN RIB and the pseudowire state. Based on this information, we can infer the following statements:

The PE is attached to a single local site. This is correct because the output shows only one local site ID (1) under the L2VPN RIB section. A local site ID is a unique identifier for a site within a VPLS domain. If there were multiple local sites attached to the PE, we would see multiple local site IDs with different prefixes.

The connection has not flapped since it was initiated. This is correct because the output shows that the uptime of the pseudowire is equal to its total uptime (1w6d). This means that the pseudowire has been up for one week and six days without any interruption or flap.

There has been a VLAN ID mismatch. This is not correct because the output shows that the remote and local VLAN IDs are both 0 under the pseudowire state section. A VLAN ID mismatch occurs when the remote and local VLAN IDs are different, which can cause traffic loss or misdelivery. If there was a VLAN ID mismatch, we would see different values for the remote and local VLAN IDs.

The PE router has the capability to pop flow labels. This is correct because the output shows that the flow label pop bit is set under the pseudowire state section. The flow label pop bit indicates that the PE router can pop (remove) the MPLS flow label from the packet before forwarding it to the CE device. The flow label is an optional MPLS label that can be used for load balancing or traffic engineering purposes.

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asked 18/09/2024

Grip op IT

40 questions

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Your answer: A B C D

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