User Manual
UMN:CLI
V5824G
331
9.1.1.1
IGMP Version
By default, the V5824G runs IGMP version 3. To change the IGMP protocol version on a
current interface, use the following command.
Command
Mode
Description
ip igmp version
<1-3>
Interface
Sets an IGMP version on a current interface.
1-3: IGMP version (default: 3)
no ip igmp version
Sets to the default setting.
Routers running different versions of IGMP negotiate the lowest common version of IGMP
that is supported by hosts on their subnet and operate in that version.
9.1.1.2
Querier
’s Robustness Variable
You can statically configure the Querier
’s Robustness Variable (QRV) field in the
membership query message for IGMP version 2 and 3. The QRV allows tuning for the
expected packet loss on a network. If a network is expected to be lossy, the QRV value
may be increased. When receiving the query message that contains a certain QRV value
from a querier, a host returns the report message as many as the specified QRV value.
To configure the QRV value on an interface, use the following command.
Command
Mode
Description
ip igmp robustness-variable
<2-7>
Interface
Configures the Querier
’s Robustness Variable (QRV)
value on an interface. (default: 2)
no ip igmp robustness-variable
Deletes a specified QRV value.
9.1.1.3
Clearing IGMP Entry
To clear IGMP entries, use the following command.
Command
Mode
Description
clear ip igmp
Enable
Global
Deletes all IGMP entries.
clear
ip
igmp
interface
INTERFACE
Deletes the IGMP entries learned from a specified
interface.
INTERFACE: interface name
clear ip igmp group
{
*
|
A.B.C.D
[
INTERFACE
]}
Deletes IGMP entries in a specified IGMP group.
*: all IGMP group
A.B.C.D: IGMP group address
To clear IGMP statistics on an interface, use the following command.
Command
Mode
Description
ip igmp clear-statistics
Interface
Deletes the IGMP statistics
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