Click the Exhibit button.
CE-1 and CE-2 are part of a VPLS called Customer1. No connectivity exists between CE-1 and CE-2. In the process of troubleshooting, you notice PE-1 is not learning any routes for this VPLS from PE-2, and PE-2 is not learning any routes for this VPLS from PE-1.
Referring to the exhibit, which statement is correct?
The most likely cause of the connectivity issue between CE-1 and CE-2 is that the route target must match on both PE-1 and PE-2. The route target is a BGP extended community attribute used to control the import and export of routes in VPN routing. If the route targets do not match, PE-1 and PE-2 will not import each other’s routes, leading to the lack of connectivity observed. In the given exhibit, the route target is set as target:65000:1 on both PE-1 and PE-2, which should ensure connectivity. However, this verification step is critical in diagnosing issues in VPLS scenarios.
A is correct.