VPLS Service Configuration Commands
Page 534 7750 SR OS Services Guide
VPLS Multicast Commands
fast-leave
Syntax [no] fast-leave
Context config>service>vpls>sap>snooping
config>service>vpls>spoke-sdp>snooping
config>service>vpls>mesh-sdp>snooping
Description This command enables fast leave.
When IGMP fast leave processing is enabled, the SR-Series will immediately remove a SAP or SDP
from the IP multicast group when it detects an IGMP 'leave' on that SAP or SDP. Fast leave
processing allows the switch to remove a SAP or SDP that sends a 'leave' from the forwarding table
without first sending out group-specific queries to the SAP or SDP, and thus speeds up the process of
changing channels ('zapping').
Fast leave should only be enabled when there is a single receiver present on the SAP or SDP.
When fast leave is enabled, the configured last-member-query-interval value is ignored.
Default no fast-leave
from-vpls
Syntax from-vpls vpls-id
no from-vpls
Context config>service>vpls>sap>snooping>mvr
Description This command configures the VPLS from which multicast traffic is copied upon receipt of an IGMP
join request.
IGMP snooping must be enabled on the MVR VPLS.
Default no from-vpls
Parameters vpls-id — Specifies the MVR VPLS from which multicast channels should be copied into this SAP.
group
Syntax [no] group grp-address
Context config>service>vpls>sap>snooping>static
config>service>vpls>spoke-sdp>snooping>static
config>service>vpls>mesh-sdp>snooping>static
Description This command adds a static multicast group either as a (*, g) or as one or more (s,g) records. When a
static IGMP group is added, multicast data for that (*,g) or (s,g) is forwarded to the specific SAP or
SDP without receiving any membership report from a host.
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