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Solution Overview (3) AF Access Islands can be single or dual-stack AFBR may support more than one softwire type ex. egress AFBR-2 may support GRE and L2TPv3 encaps and will tell other AFBRs about this along with which one AFBR-2 would prefer to be used. No new AF/SAF needed to define IPv4 and IPv6 addresses for transport in MP-BGP |