Examples of Extended Communities

The following are examples of valid extended communities:
  • rt:10.203.134.56:400
  • soo:64500:1600
  • rt:64511:2345678
  • soo:172.168.45.10:500
  • rt:1.15:20000
  • soo:65551L:50000
The following are examples of invalid extended communities:
  • rt:10.45.87.0:600: Invalid because the IP address is NOT a valid host IP address
  • rt:239.1.1.1:400: Invalid because IP address belongs to class-D
  • rt:100.200.300.400:200: Invalid because the IP address is invalid
  • soo:12345678:500: Invalid because the AS number 12345678 is out of the 2-byte AS number range, 1 to 65535