VPRN Features
Page 1088 7750 SR OS Services Guide
For example, if auto-discovery is disabled, the c-mcast-signaling bgp command will fail with an
error message stating:
C-multicast signaling in BGP requires auto-discovery to be enabled
If c-mcast-signaling is set to bgp then no auto-discovery will fail with an error message stating
C-multicast signaling in BGP requires auto-discovery to be enabled
When c-mcast-signaling is set to bgp, S-PMSI A-D is always enabled (its configuration is
ignored);
When auto-discovery is disabled, S-PMSI A-D is always disabled (its configuration is ignored).
When auto-discovery is enabled and c-multicast-signaling is set to pim, S-PMSI A-D
configuration value is used.
PE-PE Transmission of C-Multicast Routing using BGP
MVPN c-multicast routing information is exchanged between PEs by using c-multicast routes that
are carried using MCAST-VPN NLRI.
Table 25: Supported Configuration Combinations
Auto-Discovery C-Mcast-Signaling s-PMSI A-D Action
Yes BGP Ignored Allowed
Yes PIM Yes Allowed
Yes PIM No Allowed
No BGP Ignored Not Allowed
No PIM Ignored Allowed
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