Alcatel-Lucent 7750 SR OS Service Manual page 541

robust-count
Syntax robust-count robust-count
no robust-count
Context config>service>vpls>snooping
config>service>vpls>sap>snooping
config>service>vpls>spoke-sdp>snooping
config>service>vpls>mesh-sdp>snooping
Description
If the send-queries command is enabled, this parameter allows tuning for the expected packet loss on
a SAP or SDP. The robust-count variable allows tuning for the expected packet loss on a subnet and is
comparable to a retry count. If this SAP or SDP is expected to be 'lossy', this parameter may be
increased. IGMP snooping on this SAP or SDP is robust to (robust-count-1) packet losses.
If send-queries is not enabled, this parameter will be ignored.
Default
2
Parameters
robust-count — Specifies the robust count for the SAP or SDP.
send-queries
Syntax [no] send-queries
Context config>service>vpls>sap>snooping
config>service>vpls>spoke-sdp>snooping
config>service>vpls>mesh-sdp>snooping
Description
This command specifies whether to send IGMP general query messages on the SAP or SDP.
When send-queries is configured, all type of queries generate ourselves are of the configured version.
If a report of a version higher than the configured version is received, the report will get dropped and
a new wrong version counter will get incremented.
If send-queries is not configured, the version command has no effect. The version used on that SAP/
SDP will be the version of the querier. This implies that, for example, when we have a v2 querier, we
will never send out a v3 group or group-source specific query when a host wants to leave a certain
group.
Default
no send-queries
source
Syntax [no] source ip-address
Context config>service>vpls>sap>snooping>static>group
config>service>vpls>spoke-sdp>snooping>static>group
config>service>vpls>mesh-sdp>snooping>static>group
Description
This command adds a static (s,g) entry to allow multicast traffic for the corresponding multicast
group from that specific source. For the same multicast group, more than one source can be specified.
7750 SR OS Services Guide
Values
2 — 7
Virtual Private LAN Services
Page 541