Symptom, Analysis, Solution – H3C Technologies H3C S12500 Series Switches User Manual
Page 384
368
Inconsistent memberships on routers on the same subnet
Symptom
Different memberships are maintained on different MLD routers on the same subnet.
Analysis
•
A router running MLD maintains multiple parameters for each interface, and these parameters
influence one another, forming very complicated relationships. Inconsistent MLD interface
parameter configurations for routers on the same subnet will surely result in inconsistent MLD
memberships.
•
Two MLD versions are available. Although routers running different MLD versions are compatible
with hosts, all routers on the same subnet must run the same MLD version. Inconsistent MLD versions
running on routers on the same subnet will also lead to inconsistent MLD memberships.
Solution
1.
Use the display current-configuration command to verify the MLD configuration information on the
interface.
2.
Use the display mld interface command on all routers on the same subnet to check the MLD timers
for inconsistent configurations.
3.
Use the display mld interface command to verify that the routers are running the same MLD
version.