Multicast Management - THOMSON ViBE VS7000 User Manual

Appendix F 'Network Settings (6RU and 10RU Devices)' — Multicast Management

Multicast Management

IGMP snooping is enabled on the two Flex10, with the default time-out of
260 seconds.
IGMP snooping must not be disabled as it is mandatory on the
Internal data network. If disabled, the system will not be operational.
To ensure a proper multicast management, the network must contain an
IGMP Querier. You must thus ensure that one of your switches acts as
such (the Flex10 cannot have this role).
External LANs are configured as private networks, which forbids any
traffic between blades. In an IP TV environment, this prevents from
flooding a multicast stream in output of a blade towards all the other
blades.
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