Black Box LPB2910A, User Manual

Page: 133 / 367

Publication date: Sept, 2015
Revision A1
121
Define the IPv4 address as source address used in IP header for IGMP Querier election.
When the Querier address is not set, the system uses the IPv4 management address of the IP
interface associated with this VLAN.
When the IPv4 management address is not set, the system uses the first available IPv4
management address.
Otherwise, the system uses a pre-­‐defined value. By default, this value will be 192.0.2.1.
 Compatibility:
Compatibility is maintained by hosts and routers taking appropriate actions depending on the
versions of IGMP operating on hosts and routers within a network. The allowed selection is
IGMP-­‐Auto, Forced IGMPv1, Forced IGMPv2, Forced IGMPv3, and the default compatibility value is
IGMP-­‐Auto.

PRI:
Priority of Interface.
This indicates the IGMP control frame priority level generated by the system. These values can be
used to prioritize different classes of traffic.
The allowed range is 0 (best effort) to 7 (highest), and the default interface priority value is 0.

Rv:
Robustness Variable. The Robustness Variable allows tuning for the expected packet loss on a
network. The allowed range is 1 to 255; the default robustness variable value is 2.

QI:
Query Interval. The Query Interval is the interval between General Queries sent by the Querier.
The allowed range is 1 to 31744 seconds; the default query interval is 125 seconds.

QRI:
Query Response Interval. The Max Response Time used to calculate the Max Resp Code inserted
into the periodic General Queries. The allowed range is 0 to 31744 in tenths of seconds; the default
query response interval is 100 in tenths of seconds (10 seconds).

LLQI (LMQI for IGMP):
Last Member Query Interval. The Last Member Query Time is the time value represented by the
Last Member Query Interval, multiplied by the Last Member Query Count. The allowed range is 0
to 31744 in tenths of seconds; the default last member query interval is 10 in tenths of seconds (1
second).

URI:
Unsolicited Report Interval. The Unsolicited Report Interval is the time between repetitions of a
host's initial report of membership in a group. The allowed range is 0 to 31744 seconds, the default
unsolicited report interval is 1 second.

Buttons:
Apply – Click to save changes.
Reset-­‐ Click to undo any changes made locally and revert to previously saved values.

Upper right icon (Refresh, |<<, >>):
Click to Refresh the displayed table starting from the "VLAN" input fields. Or click “|<<” to update
the table starting from the first entry in the VLAN table, i.e., the entry with the lowest VLAN ID.
Otherwise, click “>> “ to update the table, starting with the entry after the last entry currently
displayed.