VPRN Service Configuration Commands
Page 964 7750 SR OS Services Guide
Parameters seconds — The time frequency, in seconds, that the router transmits general host-query messages.
Values 2 — 1024
query-last-member-interval
Syntax query-last-member-interval seconds
Context config>service>vprn>igmp
Description This command configures the frequency at which the querier sends group-specific query messages
including messages sent in response to leave-group messages. The lower the interval, the faster the
detection of the loss of the last member of a group.
Default 1
Parameters seconds — Specifies the frequency, in seconds, at which query messages are sent.
Values 1 — 1024
query-response-interval
Syntax query-response-interval seconds
Context config>service>vprn>igmp
Description This command specifies how long the querier router waits to receive a response to a host-query
message from a host.
Default 10
Parameters seconds — Specifies the the length of time to wait to receive a response to the host-query message
from the host.
Values 1 — 1023
robust-count
Syntax robust-count robust-count
no robust-count
Context config>service>vprn>igmp
Description This command configures the robust count. The robust-count variable allows tuning for the expected
packet loss on a subnet. If a subnet anticipates losses, the robust-count variable can be increased.
Default 2
Parameters robust-count — Specifies the robust count value.
Values 2 — 10
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