diff options
| author | Jay Vosburgh <fubar@us.ibm.com> | 2007-02-28 17:03:37 -0800 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2007-03-06 06:08:11 -0500 |
| commit | a816c7c712ff9f6770168b91facb9bfa9f0acd48 (patch) | |
| tree | aa47edb0c1e23be76d0fff783b9665221f2a84ef /include | |
| parent | e245cb71d490e5e516c0ca0688fad7de6c22943d (diff) | |
| download | linux-a816c7c712ff9f6770168b91facb9bfa9f0acd48.tar.gz | |
bonding: Improve IGMP join processing
In active-backup mode, the current bonding code duplicates IGMP traffic to all slaves, so that switches are up to date in case of a failover from an active to a backup interface. If bonding then fails back to the original active interface, it is likely that the "active slave" switch's IGMP forwarding for the port will be out of date until some event occurs to refresh the switch (e.g., a membership query). This patch alters the behavior of bonding to no longer flood IGMP to all ports, and to issue IGMP JOINs to the newly active port at the time of a failover. This insures that switches are kept up to date for all cases. "GOELLESCH Niels" <niels.goellesch@eurocontrol.int> originally reported this problem, and included a patch. His original patch was modified by Jay Vosburgh to additionally remove the existing IGMP flood behavior, use RCU, streamline code paths, fix trailing white space, and adjust for style. Signed-off-by: Jay Vosburgh <fubar@us.ibm.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/igmp.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/igmp.h b/include/linux/igmp.h index 9dbb525c5178..a113fe68d8a1 100644 --- a/include/linux/igmp.h +++ b/include/linux/igmp.h @@ -218,5 +218,7 @@ extern void ip_mc_up(struct in_device *); extern void ip_mc_down(struct in_device *); extern void ip_mc_dec_group(struct in_device *in_dev, __be32 addr); extern void ip_mc_inc_group(struct in_device *in_dev, __be32 addr); +extern void ip_mc_rejoin_group(struct ip_mc_list *im); + #endif #endif |