6rd Prefix and Delegated Prefix

Traffic that belongs to a 6rd domain can be identified by the 6rd prefix. The 6rd prefix consists of a unique value for the high order (leftmost) bits in the IPv6 addresses of 6rd clients. All clients that have a given 6rd prefix belong to the same 6rd domain. In FIGURE 28   , the 6rd prefix is 2001:db8::/32.

When you configure 6rd on the ACOS device, one of the parameters you provide is the 6rd prefix value. Each 6rd domain can have one 6rd prefix. You can configure multiple 6rd domains on the ACOS device, but each domain must have its own unique 6rd prefix.

NOTE:                            You can have a maximum of eight 6rd domains.