Configuring 6PE Route Reflector on Cisco IOS
Deploying a BGP route reflector for MPLS 6PE or L3VPN services requires IPv6 routing on Cisco IOS, even though it only handles control-plane activities, due to configuration issues with labeled IPv6 and VPNv4/VPNv6 address families.
MAIN POINTS
- MPLS 6PE and L3VPN services use IPv4 BGP sessions and next hops.
- IPv6 routing is unexpectedly required on Cisco IOS for control-plane activities.
- Configuration issues arose from missing route-reflector-client settings in address families.
- IOS-based devices failed tests without toolchain configuration error notifications.
TAKEAWAYS
- Ensure IPv6 routing is configured on Cisco IOS for BGP route reflectors.
- Verify route-reflector-client settings in labeled IPv6 and VPNv4/VPNv6 address families.
- Test configurations thoroughly to identify unexpected requirements.
- Be aware that toolchains might not flag all configuration issues.