300-515 · Question #172
Refer to the exhibit. A customer with locations in New York and London uses multiple service providers to connect between its offices and to the data center where its servers are located The PE…
The correct answer is D. Implement an RT Import of 202:202 and 303:303 on PE1. E. Implement an RT Import of 101:101 on PE2 and PE3. The data center routes behind PE1 are exported with route-target 101:101, so PE2 and PE3 must import this RT to learn and advertise those server prefixes toward CE2 and CE3. Conversely, the branch VRFs behind PE2 and PE3 use RTs 202:202 and 303:303 for their prefixes, so PE1…
Question
Refer to the exhibit. A customer with locations in New York and London uses multiple service providers to connect between its offices and to the data center where its servers are located The PE routers are participating in an MLDP, and each PE creates the same VRF to support the customer offices. PE1 is connected to the data centers. A network engineer must update the implementation so that new hosts connected to CE2 and CE3 can reach the servers connected to the data center. Which two actions must the engineer take to support this communication? (Choose two.)
Exhibit
Options
- AImplement an RT export of 101:101 on PE2 and PE3.
- BImplement an RT export of 202:202 and 303:303 on CE2 and CE3.
- CImplement an RT Import of 101:101 on CE2 and CE3.
- DImplement an RT Import of 202:202 and 303:303 on PE1.
- EImplement an RT Import of 101:101 on PE2 and PE3.
How the community answered
(31 responses)- A26% (8)
- B6% (2)
- C13% (4)
- D55% (17)
Explanation
The data center routes behind PE1 are exported with route-target 101:101, so PE2 and PE3 must import this RT to learn and advertise those server prefixes toward CE2 and CE3. Conversely, the branch VRFs behind PE2 and PE3 use RTs 202:202 and 303:303 for their prefixes, so PE1 must import both of these RTs in its data center VRF to receive and advertise the branch host routes toward the servers. This mutual RT import ensures full reachability between hosts at CE2/CE3 and the servers behind PE1.
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