HP 6125XLG Ip Multicast Configuration Manual page 91

Although IGMP routers are partially compatible with hosts that run different IGMP versions, all
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routers on the same subnet must run the same IGMP version. Inconsistent IGMP versions running on
routers on the same subnet leads to inconsistency of IGMP memberships.
Solution
1. Use the display current-configuration command to verify the IGMP information on the interfaces.
2. Use the display igmp interface command on all routers on the same subnet to verify the
IGMP-related timer settings. Make sure the settings are consistent on all the routers.
3. Use the display igmp interface command to verify that all the routers on the same subnet are
running the same IGMP version.
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