Sub-option 6: Subscriber ID
The Subscriber ID (SID) is a unique identification number that enables an Internet Service Provider (ISP) to perform the following actions:
- Identify a subscriber
- Assign specific attributes to that subscriber (for example, host IP address, subnet mask, and domain name server.
- Trigger accounting
The following figure illustrates the SID packet format.
The second byte (N in the figure) is the length of the ASCII string that follows. The ICX switch supports up to 50 ASCII characters.