SIP The Simple Internet Protocol
SIP is one of the main forerunners of IPng and a lot of the SIP features
are maintained in IPng.
The changes from IP to SIP fall into three main
categories:
Summary
The specific improvements of SIP over IP can be summarised as follows:
- Larger more hierarchical addresses
- "Cluster addresses"
- Scoped multicast
- More efficient packet processing
- Less stringent limits on the use of options
- Improved functionality for introducing new options