Re:mboned: RE: suggestion for simplifying IGMPV3/MLDV2 to discard EXCLUDEmode

Hi all:

According to the previous discussions on the list the draft is updated to
version01:

The key points of the simplification operations are:
1 On the host side, TO_EX(x) is not needed and IS_EX(NULL) is used to
represents an ASM join.
2 Filter mode is not maintained in the router. Group timer identifies the
switching between ASM and SSM groups. 
3 When source timer expires, its source record should be deleted without
waiting for the  expiration of group timer. And do not remove source records
when IS_EX(NULL) is received.

The state table is simplified as much as possible with the above rules
introduced.
  
Any comments are welcomed.

Thanks,

Hui liu