Case 1—Enable Tag Switching Incrementally in a Network
In the first case, assume that you want to deploy Tag Switching incrementally throughout a network of routers, but that you do not want to restrict which destination prefixes are tag switched. For a description of the commands listed in these cases, see Chapter 11, "Tag Switching Commands."
To enable Tag Switching incrementally in a network, perform these steps and enter the commands in router configuration mode (refer to Figure 10-1):
Router# configuration terminal Router(config)# ip cef distributed Router(config)# tag-switching advertise-tags Router(config)# interface e0/1 Router(config-if)# tag-switching ip Router(config-if)# exitAt R3: