Command Manual – Multicast
H3C S7500E Series Ethernet Switches
Chapter 3 IGMP Configuration Commands
3-21
[Sysname-igmp] require-router-alert
3.1.22 reset igmp group
Syntax
reset igmp group
{
all
|
interface
interface-type interface-number
{
all
|
group-address
[
mask
{
mask
|
mask-length
} ] [
source-address
[
mask
{
mask
|
mask-length
} ] ] } }
View
User view
Parameters
all
: Specifies to clear all IGMP forwarding entries.
interface
interface-type interface-number
: Clears the IGMP forwarding entries on the
specified interface.
group-address
: Multicast group address, in the range of 224.0.1.0 to 239.255.255.255.
source-address
: Multicast source address.
mask
: Subnet mask of the multicast group/source address, 255.255.255.255 by
default.
mask-length
: Subnet mask length of the multicast group/source address. For a
multicast group address, this argument has an effective value range of 4 to 32; for a
multicast source address, this argument has an effective value range of 0 to 32. The
system default is 32 in both cases.
Description
Use the
reset igmp group
command to clear IGMP forwarding entries.
Note that:
When clearing the IGMP forwarding entries of a VLAN interface, this command also
clears the IGMP Snooping forwarding entries for that VLAN.
Related commands:
display igmp group
.
Examples
# Clear all the IGMP and IGMP Snooping entries on all interfaces.
<Sysname> reset igmp group all
# Clear all IGMP forwarding entries on VLAN-interface 100 and all IGMP Snooping
forwarding entries in VLAN 100.
<Sysname> reset igmp group interface vlan-interface 100 all
# Clear the IGMP forwarding entries of multicast group 225.0.0.1 on VLAN-interface
100 and all the IGMP Snooping forwarding entries of this multicast group in VLAN 100.
