RE: Issue:SSM snooping implementation in switch

Refer RFC 3376: Section 6.4.

Old State       Report Rcvd        New State

INCLUDE (A)       IS_EX (B) ==> EXCLUDE (A*B,B-A)

and also

INCLUDE (A)       TO_EX (B)  ==>EXCLUDE (A*B,B-A) 


Note: Replace, "B" with "A" and you'll get the solution!


Regards,
Prashant Jhingran

Huawei Technologies
+91-80-41117676 Ext -5129
Mobile:+91-9448927814

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  _____  

From: Ramrao Deshpande [mailto:[email protected]]

Sent: Monday, April 02, 2007 3:06 PM
To: [email protected]
Subject: [magma] Issue:SSM snooping implementation in switch



Hi All, 

Here i have some issue in implementing ssm-snooping in  the
switch 

                                                 Upstream
Router 
                                                           |

                                                           |

 
---------------- 
                                                |  switch
|        Snooping Enabled for IGMPV3 
                                                |
| 
 
------------------ 
                                                          |

 
------------------------------------------------ 
                                 |
| 
                                 |
| 
                          -----------
----------- 
                         |    H1    |
|    H2    | 
                         ------------
----------- 

In above diagram if Host H1/H2 sends following request to
upstream router 

H1 --------> (S,G,F)   (135.0.0.1,232.0.0.1,INCLUDE) 

H2--------->(S,G,F)   (135.0.0.1,232.0.0.1,EXCLUDE) 

In this scenario how the switch and router should maintain
snooping and membership information. 

Thanks, 

Regards, 

Ramrao G Deshpande

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