A fleet-garage PE is at risk of exhausting memory because one chatty CE floods excessive prefixes into its VRF. What control best protects the PE while keeping the L3VPN design intact?
Select an answer to reveal the explanation.
Short Explanation
A chatty CE is a firehose aimed at PE memory. A maximum-prefix limit is the shutoff valve — keep the VRF, keep the VPN, just refuse the flood. Collapsing into the global table or killing MP-BGP "solves" nothing useful for the garage design.
Full Explanation
PE memory and control-plane stability depend on bounding how many routes a VRF accepts from a CE or into the VRF RIB. VRF or PE-CE maximum-prefix features reject or tear down when limits are exceeded, which is the appropriate guardrail for a noisy fleet CE. Moving to the global table, disabling MP-BGP, or forcing identical RDs does not provide controlled protection and harms isolation or uniqueness. Apply prefix limits as standard PE-CE hygiene.