Tag Archives: eBGP

ISP ASN 65100 provides Internet services to router CE-1 and receives customer prefix 198.18.18.0/24 via eBGP. An administrator for the ISP is now provisioning RTBH services to provide on-demand data-plane security for the customer’s IP space. Which route-map configuration must the administrator apply to router RTBH-1 to complete the implementation of RTBH services to CE-1?

Refer to the exhibit. ISP ASN 65100 provides Internet services to router CE-1 and receives customer prefix 198.18.18.0/24 via eBGP. An administrator for the ISP is now provisioning RTBH services to provide on-demand data-plane security for the customer’s IP space. Which route-map configuration must the administrator apply to router RTBH-1 to complete the implementation of RTBH services to… Read More »

Which configuration establishes EBGP neighborship between these two directly connected neighbors and exchanges the loopback network of the two routers through BGP?

Refer to the exhibit. Which configuration establishes EBGP neighborship between these two directly connected neighbors and exchanges the loopback network of the two routers through BGP? A. R1(config)#router bgp 1 R1(config-router)#neighbor 192.168.10.2 remote-as 2 R1(config-router)#network 10.1.1.0 mask 255.255.255.0 R2(config)#router bgp 2 R2(config-router)#neighbor 192.168.10.1 remote-as 1 R2(config-router)#network 10.2.2.0 mask 255.255.255.0 B. R1(config)#router bgp 1 R1(config-router)#neighbor 10.2.2.2 remote-as 2 R1(config-router)#network… Read More »

An engineer must establish eBGP peering between router R3 and router R4. Both routers should use their loopback interfaces as the BGP router ID. Which configuration set accomplishes this task?

Refer to the exhibit. An engineer must establish eBGP peering between router R3 and router R4. Both routers should use their loopback interfaces as the BGP router ID. Which configuration set accomplishes this task? A. R3(config)#router bgp 200 R3(config-router)#neighbor 10.4.4.4 remote-as 100 R3(config-router)# neighbor 10.4.4.4 update-source Loopback0 R4(config)#router bgp 100 R4(config-router)#neighbor 10.3.3.3 remote-as 200 R4(config-router)#network 10.3.3.3 update-source Loopback0… Read More »

Which configuration establishes EBGP neighbor ship between these two directly connected neighbors and exchanges the loopback network of the two routers through BGP?

Refer to the exhibit. Which configuration establishes EBGP neighbor ship between these two directly connected neighbors and exchanges the loopback network of the two routers through BGP? A. R1(config)#router bgp 1 R1(config-router)#neighbor 192.168.10.2 remote-as 2 R1(config-router)#network 10.1.1.0 mask 255.255.255.0 R2(config)#router bgp 2 R2(config-router)#neighbor 192.168.10.1 remote-as 1 R2(config-router)#network 10.2.2.0 mask 255.255.255.0 B. R1(config)#router bgp 1 R1(config-router)#neighbor 10.2.2.2 remote-as 2… Read More »

What is the correct EBGP path attribute list, ordered from most preferred to least preferred, that the BGP best-path algorithm uses?

A. local preference, weight, AS path, MED B. weight, local preference, AS path, MED C. weight, AS path, local preference, MED D. local preference, weight, MED, AS path Answer: Option B. Explanation:  No answer description available for this question Show AnswerDiscussion The post What is the correct EBGP path attribute list, ordered from most preferred to least preferred,… Read More »

An engineer has successfully fixed BGP peering issue. R1 has an established eBGP peering with R2 and R3. Which mechanism should the engineer apply in order to steer the traffic correctly?

Refer to the exhibit. An engineer has successfully fixed BGP peering issue. R1 has an established eBGP peering with R2 and R3. Which mechanism should the engineer apply in order to steer the traffic correctly? A. The MED attribute can be applied on R2 to influence R1 to use it as the primary path. B. The local preference… Read More »

A network engineer sets up a multihoming eBGP topology where multiple Autonomous Systems connect to ASN 64501. The engineer wants to block all the routes coming from ASN 64502 but allow all the others. For that purpose, the following AS Path prefix list is being used: (config)#ip as-path access-list 10 deny _64502$ What must be fixed to achieve this result?

Refer to the exhibit. A network engineer sets up a multihoming eBGP topology where multiple Autonomous Systems connect to ASN 64501. The engineer wants to block all the routes coming from ASN 64502 but allow all the others. For that purpose, the following AS Path prefix list is being used: (config)#ip as-path access-list 10 deny _64502$ What must… Read More »

Which two BGP features will result in successful route exchanges between eBGP neighbors sharing the same AS number? (Choose two.)

A. advertise-best-external B. bestpath as-path ignore C. client-to-client reflection D. as-override E. allow-as-in Answer: Option D, E. Explanation:  No answer description available for this question. Show AnswerDiscussion The post Which two BGP features will result in successful route exchanges between eBGP neighbors sharing the same AS number? (Choose two.) appeared first on Majanto.

An engineer is bringing up a new circuit to the MPLS provider on the Gi0/1 interface of Router 1. The new circuit uses eBGP and learns the route to VLAN25 from the BGP path. What is the expected behavior for the traffic flow for route 10.10.13.0/25?

Refer to the exhibit. An engineer is bringing up a new circuit to the MPLS provider on the Gi0/1 interface of Router 1. The new circuit uses eBGP and learns the route to VLAN25 from the BGP path. What is the expected behavior for the traffic flow for route 10.10.13.0/25? A. Traffic to 10.10.13.0/25 is load balanced out… Read More »