Hi Woj and Satoru, Thanks for spending time to explain MAP to the ML. It really helps to understand it better. Thanks
I concur with Maoke's analysis. If the 1:1 mode means giving the CE a complete IPv4 address (or an IPv4 prefix) in the Rule IPv4 prefix (i.e. EA-bit=0 and r <= 32) , this is what MAP allows. If 1:1 means explicitly provisioning PSID in the BR for shared an IPv4 address and PSID isn't contained in the CE MAP address, AFAIK this is not MAP originally designed for. In the current version of the draft, I found two references: MAP can also be provisioned in 1:1 mode. In 1:1 mode the BR has a MAP domain per subscriber, and the CE is configured in hub and spoke mode, with only a DMR and no other mapping rules. This allows for a mode where the BR has one rule per subscriber and the provisioning of IPv4 address or prefix and port sets is independent of the End-User IPv6 prefix. In 1:1 mode, the MAP CE is provisioned with only a Default Mapping Rule, and the full IPv4 address/prefix and port range is provisioned using the DHCP option. When I read them, my interpretation is when EA-bit=0, port-set could be provisioned to CE. BR will also install the BMR+Port-set per CE. It seems to me the 1:1 is the second case rather than first case. Am I reading the draft wrong? I also have a question about routing the packet to CE. If EA-bit=0, does this require each CE will have a different Rule IPv6 prefix (i.e. Each sub is in its domain)? If not, how does routing work in BR? Thanks, Yiu
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