HP 6125XLG Installation manual

HP 6125XLG Blade Switch
IP Multicast
Command Reference
Part number: 5998-3735
Software version: Release 2306
Document version: 6W100-20130912

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i
Contents
IGMP snooping commands········································································································································· 1
display igmp-snooping·············································································································································1
display igmp-snooping group ·································································································································2
display igmp-snooping router-port··························································································································3
display igmp-snooping static-group························································································································4
display igmp-snooping static-router-port ················································································································5
display igmp-snooping statistics ·····························································································································6
display l2-multicast forwarding-table······················································································································7
display l2-multicast mac-forwarding-table··············································································································8
entry-limit (IGMP-snooping view) ····························································································································9
fast-leave (IGMP-snooping view)·····························································································································9
group-policy (IGMP-snooping view) ···················································································································· 10
host-aging-time (IGMP-snooping view)················································································································ 11
igmp-snooping ······················································································································································· 12
igmp-snooping drop-unknown······························································································································ 13
igmp-snooping enable ·········································································································································· 13
igmp-snooping fast-leave ······································································································································ 14
igmp-snooping group-limit···································································································································· 15
igmp-snooping group-policy································································································································· 15
igmp-snooping host-aging-time ···························································································································· 16
igmp-snooping last-member-query-interval·········································································································· 17
igmp-snooping max-response-time······················································································································· 18
igmp-snooping overflow-replace·························································································································· 19
igmp-snooping router-aging-time ························································································································· 20
igmp-snooping source-deny·································································································································· 21
igmp-snooping static-group ·································································································································· 21
igmp-snooping static-router-port··························································································································· 22
igmp-snooping version·········································································································································· 23
last-member-query-interval (IGMP-snooping view) ····························································································· 23
max-response-time (IGMP-snooping view) ·········································································································· 24
overflow-replace (IGMP-snooping view) ············································································································· 25
reset igmp-snooping group··································································································································· 26
reset igmp-snooping router-port ··························································································································· 26
reset igmp-snooping statistics······························································································································· 27
router-aging-time (IGMP-snooping view)············································································································· 27
source-deny (IGMP-snooping view) ····················································································································· 28
Multicast routing and forwarding commands ··········································································································29
delete ip rpf-route-static········································································································································· 29
display mac-address multicast······························································································································ 29
display multicast boundary ·································································································································· 30
display multicast forwarding-table······················································································································· 31
display multicast routing-table······························································································································ 33
display multicast routing-table static···················································································································· 35
display multicast rpf-info ······································································································································· 36
ip rpf-route-static ···················································································································································· 37
mac-address multicast ··········································································································································· 38
multicast boundary ················································································································································ 39
multicast load-splitting··········································································································································· 40

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multicast longest-match ········································································································································· 40
multicast routing-enable ········································································································································ 41
reset multicast forwarding-table ··························································································································· 41
reset multicast routing-table ·································································································································· 42
IGMP commands························································································································································44
display igmp group··············································································································································· 44
display igmp interface ·········································································································································· 46
igmp enable··························································································································································· 47
igmp fast-leave······················································································································································· 48
igmp group-policy ················································································································································· 49
igmp static-group··················································································································································· 50
igmp version ·························································································································································· 50
reset igmp group ··················································································································································· 51
PIM commands···························································································································································54
bsm-fragment enable (PIM view)·························································································································· 54
bsr-policy (PIM view)············································································································································· 54
c-bsr (PIM view) ····················································································································································· 55
c-rp (PIM view)······················································································································································· 56
crp-policy (PIM view)············································································································································· 57
display pim bsr-info··············································································································································· 58
display pim claimed-route ···································································································································· 59
display pim c-rp····················································································································································· 61
display pim interface ············································································································································ 62
display pim neighbor············································································································································ 64
display pim routing-table ······································································································································ 65
display pim rp-info ················································································································································ 68
hello-option dr-priority (PIM view)························································································································ 69
hello-option holdtime (PIM view)·························································································································· 70
hello-option lan-delay (PIM view)························································································································· 71
hello-option neighbor-tracking (PIM view) ·········································································································· 72
hello-option override-interval (PIM view)············································································································· 72
holdtime join-prune (PIM view)····························································································································· 73
jp-pkt-size (PIM view)············································································································································· 74
pim ·········································································································································································· 74
pim bfd enable ······················································································································································ 75
pim bsr-boundary ·················································································································································· 76
pim dm···································································································································································· 76
pim hello-option dr-priority ··································································································································· 77
pim hello-option holdtime ····································································································································· 77
pim hello-option lan-delay ···································································································································· 78
pim hello-option neighbor-tracking······················································································································ 79
pim hello-option override-interval ························································································································ 80
pim holdtime join-prune ········································································································································ 81
pim neighbor-policy ·············································································································································· 81
pim require-genid ·················································································································································· 82
pim sm ···································································································································································· 83
pim state-refresh-capable······································································································································ 83
pim timer graft-retry··············································································································································· 84
pim timer hello ······················································································································································· 84
pim timer join-prune ·············································································································································· 85
pim triggered-hello-delay······································································································································ 86
register-policy (PIM view)······································································································································ 86
register-whole-checksum (PIM view) ···················································································································· 87

iii
source-lifetime (PIM view) ····································································································································· 88
source-policy (PIM view) ······································································································································· 88
spt-switch-threshold (PIM view)····························································································································· 89
state-refresh-interval (PIM view)···························································································································· 90
state-refresh-rate-limit (PIM view)·························································································································· 91
state-refresh-ttl (PIM view)······································································································································ 91
static-rp (PIM view) ················································································································································ 92
timer hello (PIM view)············································································································································ 93
timer join-prune (PIM view)··································································································································· 94
MLD snooping commands·········································································································································95
display ipv6 l2-multicast forwarding-table·········································································································· 95
display ipv6 l2-multicast mac-forwarding-table·································································································· 96
display mld-snooping ············································································································································ 97
display mld-snooping group································································································································· 98
display mld-snooping router-port ························································································································· 99
display mld-snooping static-group ·····················································································································100
display mld-snooping static-router-port··············································································································101
display mld-snooping statistics···························································································································102
entry-limit (MLD-snooping view) ·························································································································103
fast-leave (MLD-snooping view)··························································································································104
group-policy (MLD-snooping view) ····················································································································104
host-aging-time (MLD-snooping view)················································································································106
last-listener-query-interval (MLD-snooping view) ·······························································································106
max-response-time (MLD-snooping view) ··········································································································107
mld-snooping························································································································································108
mld-snooping drop-unknown ······························································································································108
mld-snooping enable···········································································································································109
mld-snooping fast-leave ······································································································································110
mld-snooping group-limit ····································································································································110
mld-snooping group-policy ·································································································································111
mld-snooping host-aging-time·····························································································································112
mld-snooping last-listener-query-interval ············································································································113
mld-snooping max-response-time ·······················································································································114
mld-snooping overflow-replace ··························································································································115
mld-snooping router-aging-time··························································································································115
mld-snooping source-deny ··································································································································116
mld-snooping static-group···································································································································117
mld-snooping static-router-port ···························································································································118
mld-snooping version ··········································································································································119
overflow-replace (MLD-snooping view) ·············································································································119
reset mld-snooping group···································································································································120
reset mld-snooping router-port····························································································································121
reset mld-snooping statistics ·······························································································································121
router-aging-time (MLD-snooping view)·············································································································122
source-deny (MLD-snooping view) ·····················································································································122
IPv6 multicast routing and forwarding commands ······························································································· 124
display ipv6 multicast boundary························································································································124
display ipv6 multicast forwarding-table············································································································125
display ipv6 multicast routing-table···················································································································127
display ipv6 multicast rpf-info ····························································································································128
ipv6 multicast boundary ·····································································································································129
ipv6 multicast load-splitting ································································································································131
ipv6 multicast longest-match·······························································································································131

iv
ipv6 multicast routing-enable ·····························································································································132
reset ipv6 multicast forwarding-table ················································································································132
reset ipv6 multicast routing-table ·······················································································································133
MLD commands······················································································································································· 135
display mld group ···············································································································································135
display mld interface···········································································································································136
mld enable ···························································································································································138
mld fast-leave ·······················································································································································139
mld group-policy··················································································································································139
mld static-group ···················································································································································140
mld version···························································································································································141
reset mld group····················································································································································142
IPv6 PIM commands················································································································································ 144
bsm-fragment enable (IPv6 PIM view) ···············································································································144
bsr-policy (IPv6 PIM view)···································································································································144
c-bsr (IPv6 PIM view) ···········································································································································145
c-rp (IPv6 PIM view)·············································································································································146
crp-policy (IPv6 PIM view) ··································································································································147
display ipv6 pim bsr-info ····································································································································148
display ipv6 pim claimed-route··························································································································149
display ipv6 pim c-rp ··········································································································································150
display ipv6 pim interface··································································································································152
display ipv6 pim neighbor ·································································································································154
display ipv6 pim routing-table ···························································································································155
display ipv6 pim rp-info······································································································································158
hello-option dr-priority (IPv6 PIM view) ·············································································································160
hello-option holdtime (IPv6 PIM view) ···············································································································161
hello-option lan-delay (IPv6 PIM view) ··············································································································161
hello-option neighbor-tracking (IPv6 PIM view)································································································162
hello-option override-interval (IPv6 PIM view) ··································································································163
holdtime join-prune (IPv6 PIM view) ··················································································································164
ipv6 pim ·······························································································································································164
ipv6 pim bfd enable ···········································································································································165
ipv6 pim bsr-boundary········································································································································166
ipv6 pim dm·························································································································································166
ipv6 pim hello-option dr-priority ························································································································167
ipv6 pim hello-option holdtime ··························································································································167
ipv6 pim hello-option lan-delay ·························································································································168
ipv6 pim hello-option neighbor-tracking ···········································································································169
ipv6 pim hello-option override-interval··············································································································170
ipv6 pim holdtime join-prune ·····························································································································171
ipv6 pim neighbor-policy ···································································································································171
ipv6 pim require-genid ·······································································································································172
ipv6 pim sm ·························································································································································173
ipv6 pim state-refresh-capable ···························································································································173
ipv6 pim timer graft-retry ····································································································································174
ipv6 pim timer hello ············································································································································174
ipv6 pim timer join-prune ···································································································································175
ipv6 pim triggered-hello-delay ···························································································································176
jp-pkt-size (IPv6 PIM view) ··································································································································176
register-policy (IPv6 PIM view) ···························································································································177
register-whole-checksum (IPv6 PIM view)··········································································································178
source-lifetime (IPv6 PIM view)···························································································································178

v
source-policy (IPv6 PIM view)·····························································································································179
spt-switch-threshold (IPv6 PIM view) ··················································································································180
state-refresh-hoplimit (IPv6 PIM view) ················································································································180
state-refresh-interval (IPv6 PIM view) ·················································································································181
state-refresh-rate-limit (IPv6 PIM view) ···············································································································182
static-rp (IPv6 PIM view)······································································································································182
timer hello (IPv6 PIM view) ·································································································································184
timer join-prune (IPv6 PIM view) ························································································································184
Support and other resources ·································································································································· 186
Contacting HP ······························································································································································186
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1
IGMP snooping commands
display igmp-snooping
Use display igmp-snooping to display IGMP snooping status.
Syntax
display igmp-snooping [ global | vlan vlan-id ]
Views
Any view
Predefined user roles
network-admin
network-operator
Parameters
global: Displays the global IGMP snooping status.
vlan vlan-id: Specifies a VLAN. The value range for the vlan-id argument is 1 to 4094.
Usage guidelines
If no argument is specified, this command displays the global IGMP snooping status and the IGMP
snooping status in all VLANs.
Examples
# Display the global IGMP snooping status and the IGMP snooping status in all VLANs.
<Sysname> display igmp-snooping
IGMP snooping information: Global
IGMP snooping: Enabled
Host-aging-time: 260s
Router-aging-time: 260s
Max-response-time: 10s
Last-member-query-interval: 1s
IGMP snooping information: VLAN 1
IGMP snooping: Enabled
Drop-unknown: Disabled
Version: 2
Host-aging-time: 200s
Router-aging-time: 260s
Max-response-time: 10s
Last-member-query-interval: 2s
IGMP snooping information: VLAN 10
IGMP snooping: Enabled
Drop-unknown: Enabled

2
Version: 3
Host-aging-time: 260s
Router-aging-time: 260s
Max-response-time: 10s
Last-member-query-interval: 1s
Table 1 Command output
Field Descri
p
tion
IGMP snooping
IGMP snooping status:
•Enabled.
•Disabled.
Drop-unknown
Status of dropping unknown multicast data:
•Enabled.
•Disabled.
Version IGMP snooping version.
Host-aging-time Aging timer for the dynamic member port.
Router-aging-time Aging timer for the dynamic router port.
Max-response-time Maximum response time for IGMP general queries.
Last-member-query-interval Interval for sending IGMP group-specific queries.
display igmp-snooping group
Use display igmp-snooping group to display information about dynamic IGMP snooping forwarding
entries.
Syntax
display igmp-snooping group [ group-address | source-address ] * [ vlan vlan-id ] [ verbose ] [ slot
slot-number ]
Views
Any view
Predefined user roles
network-admin
network-operator
Parameters
group-address: Specifies a multicast group by its IP address, in the range of 224.0.1.0 to
239.255.255.255. If no multicast group is specified, this command displays information about the
dynamic IGMP snooping forwarding entries for all multicast groups.
source-address: Specifies a multicast source by its IP address. If no multicast source is specified, this
command displays information about the dynamic IGMP snooping forwarding entries for all multicast
sources.
vlan vlan-id: Specifies a VLAN. The value range for the vlan-id argument is 1 to 4094. If no VLAN is
specified, this command displays information about the dynamic IGMP snooping forwarding entries for
all VLANs.

3
verbose: Displays detailed information.
slot slot-number: Specifies a member device by its member ID. The slot-number argument specifies an IRF
member device ID. If no member device is specified, this command displays information about the
dynamic IGMP snooping forwarding entries on the master device in the IRF fabric.
Examples
# Display information about the dynamic IGMP snooping forwarding entries in VLAN 2.
<Sysname> display igmp-snooping group vlan 2
Total 1 entries.
VLAN 2: Total 1 entries.
(0.0.0.0, 224.1.1.1)
Host slots (0 in total):
Host ports (1 in total):
XGE1/1/6 (00:03:23)
Table 2 Command output
Field Descri
p
tion
Total 1 entries Total number of dynamic IGMP snooping forwarding entries.
VLAN 2: Total 1 entries Total number of dynamic IGMP snooping forwarding entries in VLAN 2.
(0.0.0.0, 224.1.1.1) (S, G) entry, where "0.0.0.0" represents any multicast source.
Host ports (1 in total) Total number of member ports and the port list.
(00:03:23)
Remaining time of the aging timer for the dynamic member port. On IRF devices,
to display the remaining time for a non-aggregate interface on a member device
that is not the master device in the IRF fabric, you must specify the slot slot-number
option. For an aggregate interface, you do not need to do this.
Related commands
reset igmp-snooping group
display igmp-snooping router-port
Use display igmp-snooping router-port to display information about dynamic router ports.
Syntax
display igmp-snooping router-port [ vlan vlan-id ] [ slot slot-number ]
Views
Any view
Predefined user roles
network-admin
network-operator
Parameters
vlan vlan-id: Specifies a VLAN. The value range for the vlan-id argument is 1 to 4094.

4
slot slot-number: Specifies a member device by its member ID. The slot-number argument specifies an IRF
member device ID. If no member device is specified, this command displays information about the
dynamic router ports on the master device in the IRF fabric.
Examples
# Display information about the dynamic router ports in VLAN 2.
<Sysname> display igmp-snooping router-port vlan 2
VLAN 2:
Router slots (0 in total):
Router ports (2 in total):
XGE1/1/5 (00:01:30)
XGE1/1/6 (00:00:23)
Table 3 Command output
Field Descri
p
tion
VLAN 2 VLAN ID.
Router ports (2 in total) Total number of dynamic router ports and the port list.
(00:01:30)
Remaining time of the aging timer for the dynamic router port. On IRF devices, to
display the remaining time for a non-aggregate interface on a member device that
is not the master device in the IRF fabric, you must specify the slot slot-number option.
For an aggregate interface, you do not need to do this.
Related commands
reset igmp-snooping router-port
display igmp-snooping static-group
Use display igmp-snooping static-group to display information about static IGMP snooping forwarding
entries.
Syntax
display igmp-snooping static-group [ group-address | source-address ] * [ vlan vlan-id ] [ verbose ] [ slot
slot-number ]
Views
Any view
Predefined user roles
network-admin
network-operator
Parameters
group-address: Specifies a multicast group by its IP address, in the range of 224.0.1.0 to
239.255.255.255. If no multicast group is specified, this command displays information about the static
IGMP snooping forwarding entries for all multicast groups.
source-address: Specifies a multicast source by its IP address. If no multicast source is specified, this
command displays information about the static IGMP snooping forwarding entries for all multicast
sources.

5
vlan vlan-id: Specifies a VLAN. The value range for the vlan-id argument is 1 to 4094. If no VLAN is
specified, this command displays information about the static IGMP snooping forwarding entries for all
VLANs.
verbose: Displays detailed information.
slot slot-number: Specifies a member device by its member ID. The slot-number argument specifies an IRF
member device ID. If no member device is specified, this command displays information about the static
IGMP snooping forwarding entries on the master device in the IRF fabric.
Examples
# Display information about the static IGMP snooping forwarding entries in VLAN 2.
<Sysname> display igmp-snooping static-group vlan 2
Total 1 entries.
VLAN 2: Total 1 entries.
(0.0.0.0, 224.1.1.1)
Host slots (0 in total):
Host ports (1 in total):
XGE1/1/6
Table 4 Command output
Field Descri
p
tion
Total 1 entries Total number of static IGMP snooping forwarding entries.
VLAN 2: Total 1 entries Total number of static IGMP snooping forwarding entries in VLAN 2.
(0.0.0.0, 224.1.1.1) (S, G) entry, where "0.0.0.0" represents any multicast source.
Host ports (1 in total) Total number of member ports and the port list.
display igmp-snooping static-router-port
Use display igmp-snooping static-router-port to display information about static router ports.
Syntax
display igmp-snooping static-router-port [ vlan vlan-id ] [ slot slot-number ]
Views
Any view
Predefined user roles
network-admin
network-operator
Parameters
vlan vlan-id: Specifies a VLAN. The value range for the vlan-id argument is 1 to 4094.
slot slot-number: Specifies a member device by its member ID. The slot-number argument specifies an IRF
member device ID. If no member device is specified, this command displays information about the static
router ports on the master device in the IRF fabric.

6
Examples
# Display information about the static router ports in VLAN 2.
<Sysname> display igmp-snooping static-router-port vlan 2
VLAN 2:
Router slots (0 in total):
Router ports (2 in total):
XGE1/1/5
XGE1/1/6
Table 5 Command output
Field Descri
p
tion
VLAN 2 VLAN ID.
Router ports (2 in total) Total number of static router ports and the port list.
display igmp-snooping statistics
Use display igmp-snooping statistics to display statistics for the IGMP messages learned by IGMP
snooping.
Syntax
display igmp-snooping statistics
Views
Any view
Predefined user roles
network-admin
network-operator
Examples
# Display statistics for the IGMP messages learned by IGMP snooping.
<Sysname> display igmp-snooping statistics
Received IGMP general queries: 0
Received IGMPv1 reports: 0
Received IGMPv2 reports: 19
Received IGMP leaves: 0
Received IGMPv2 specific queries: 0
Sent IGMPv2 specific queries: 0
Received IGMPv3 reports: 1
Received IGMPv3 reports with right and wrong records: 0
Received IGMPv3 specific queries: 0
Received IGMPv3 specific sg queries: 0
Sent IGMPv3 specific queries: 0
Sent IGMPv3 specific sg queries: 0
Received error IGMP messages: 19

7
Table 6 Command output
Field Descri
p
tion
general queries Number of general queries.
specific queries Number of group-specific queries.
reports Number of reports.
leaves Number of leave messages.
reports with right and wrong records Number of reports with correct and incorrect records.
specific sg queries Number of group-and-source-specific queries.
error IGMP messages Number of IGMP messages with errors.
Related commands
reset igmp-snooping statistics
display l2-multicast forwarding-table
Use display l2-multicast forwarding-table to display information about Layer 2 multicast forwarding
entries.
Syntax
display l2-multicast forwarding-table [ group group-address | source source-address ] * [ vlan vlan-id ]
[ slot slot-number ]
Views
Any view
Predefined user roles
network-admin
network-operator
Parameters
group group-address: Specifies a multicast group by its IP address. The group-address argument can be
0.0.0.0 or in the range of 224.0.1.0 to 239.255.255.255. If no multicast group is specified, this
command displays information about the Layer 2 multicast forwarding entries for all multicast groups.
source source-address: Specifies a multicast source by its IP address. If no multicast source is specified,
this command displays information about the Layer 2 multicast forwarding entries for all multicast
sources.
vlan vlan-id: Specifies a VLAN. The value range for the vlan-id argument is 1 to 4094. If no VLAN is
specified, this command displays information about the Layer 2 multicast forwarding entries for all
VLANs.
slot slot-number: Specifies a member device by its member ID. The slot-number argument specifies an IRF
member device ID. If no member device is specified, this command displays information about the Layer
2 multicast forwarding entries on the master device in the IRF fabric.
Examples
# Display information about the Layer 2 multicast forwarding entries in VLAN 2.
<Sysname> display l2-multicast forwarding-table vlan 2

8
Total 1 entries.
VLAN 2: Total 1 entries.
(0.0.0.0, 224.1.1.1)
Host slots (0 in total):
Host ports (3 in total):
XGE1/1/5
XGE1/1/6
XGE1/1/7
Table 7 Command output
Field Descri
p
tion
Total 1 entries Total number of Layer 2 multicast forwarding entries.
VLAN 2: Total 1 entries Total number of Layer 2 multicast forwarding entries in VLAN 2.
(0.0.0.0, 224.1.1.1) (S, G) entry, where "0.0.0.0" represents any multicast source.
Host ports (3 in total) Total number of member ports and the port list.
display l2-multicast mac-forwarding-table
Use display l2-multicast mac-forwarding-table to display information about MAC address multicast
forwarding entries.
Syntax
display l2-multicast mac-forwarding-table [ mac-address ] [ vlan vlan-id ] [ slot slot-number ]
Views
Any view
Predefined user roles
network-admin
network-operator
Parameters
mac-address: Specifies a MAC multicast group by its MAC address. The MAC address value is
0100-5Exx-xxxx, where "x" is in the range of 0 to F. If no MAC multicast group is specified, this
commands displays information about the MAC address multicast entries for all MAC multicast groups.
vlan vlan-id: Specifies a VLAN. The value range for the vlan-id argument is 1 to 4094. If no VLAN is
specified, this command displays information about the MAC address multicast entries for all VLANs.
slot slot-number: Specifies a member device by its member ID. The slot-number argument specifies an IRF
member device ID. If no member device is specified, this command displays information about the MAC
address multicast entries on the master device in the IRF fabric.
Examples
# Display information about the MAC address multicast entries in VLAN 2.
<Sysname> display l2-multicast mac-forwarding-table vlan 2
Total 1 MAC entries.

9
VLAN 2: Total 1 MAC entries.
MAC group address: 0100-5e01-0101
Host slots (0 in total):
Host ports (3 in total):
XGE1/1/5
XGE1/1/6
XGE1/1/7
Table 8 Command output
Field Descri
p
tion
Total 1 MAC entries Total number of MAC address multicast entries.
VLAN 2: Total 1 MAC entries Total number of MAC address multicast entries in VLAN 2.
MAC group address Address of the MAC multicast group.
Host ports (3 in total) Total number of member ports and the port list.
entry-limit (IGMP-snooping view)
Use entry-limit to set the global maximum number of IGMP snooping forwarding entries.
Use undo entry-limit to restore the default.
Syntax
entry-limit limit
undo entry-limit
Default
The setting is 4294967295.
Views
IGMP-snooping view
Predefined user roles
network-admin
Parameters
limit: Specifies the global maximum number of IGMP snooping forwarding entries, in the range of 0 to
4294967295.
Examples
# Set the global maximum number of IGMP snooping forwarding entries to 512.
<Sysname> system-view
[Sysname] igmp-snooping
[Sysname-igmp-snooping] entry-limit 512
fast-leave (IGMP-snooping view)
Use fast-leave to enable IGMP snooping fast-leave processing globally.
Use undo fast-leave to disable IGMP snooping fast-leave processing globally.

10
Syntax
fast-leave [ vlan vlan-list ]
undo fast-leave [ vlan vlan-list ]
Default
IGMP snooping fast-leave processing is disabled.
Views
IGMP-snooping view
Predefined user roles
network-admin
Parameters
vlan vlan-list: Specifies a space-separated list of up to ten VLAN items. Each item specifies a VLAN by
its ID or a range of VLANs in the form of start-vlan-id to end-vlan-id. The VLAN ID is in the range of 1 to
4094. If this option is not specified, this command takes effect for all VLANs.
Usage guidelines
When an IGMP leave message arrives at a port that has the IGMP snooping fast-leave processing
feature enabled, the switch immediately removes that port from the forwarding entry for the multicast
group specified in the message.
The global configuration is effective on all ports, but has a lower priority than the configuration made on
a specific port.
Examples
# Enable IGMP snooping fast-leave processing for VLAN 2.
<Sysname> system-view
[Sysname] igmp-snooping
[Sysname-igmp-snooping] fast-leave vlan 2
Related commands
igmp-snooping fast-leave
group-policy (IGMP-snooping view)
Use group-policy to configure a global multicast group filter to control the multicast groups that a host
can join.
Use undo group-policy to remove the configured global multicast group filter.
Syntax
group-policy acl-number [ vlan vlan-list ]
undo group-policy [ vlan vlan-list ]
Default
No global multicast group filter is configured. A host can join any valid multicast group.
Views
IGMP-snooping view

11
Predefined user roles
network-admin
Parameters
acl-number: Specifies an IPv4 basic or advanced ACL by its number, in the range of 2000 to 3999. A
host can join only the multicast groups that match the permit statement in the specified ACL. The source
addresses in the basic ACL rule are the multicast group addresses specified in IGMP reports. The source
and destination addresses in the advanced ACL rule are the multicast source addresses and multicast
group addresses specified in IGMP reports, respectively. The system assumes that 0.0.0.0 is the multicast
source address of an IGMPv1 or IGMPv2 report or an IGMPv3 IS_EX and TO_EX report that does not
carry a multicast source address.
vlan vlan-list: Specifies a space-separated list of up to ten VLAN items. Each item specifies a VLAN by
its ID or a range of VLANs in the form of start-vlan-id to end-vlan-id. The VLAN ID is in the range of 1 to
4094. If this option is not specified, this command takes effect for all VLANs.
Usage guidelines
If the specified ACL does not exist or the ACL rule is null, all multicast groups are filtered out.
You can configure different ACL rules on a port in different VLANs. However, for a given VLAN, a newly
configured ACL rule overrides the existing one.
This command is effective for the multicast groups that a port joins dynamically. If you configure the port
as a static member port for a multicast group, this command is not effective for the multicast group.
The global configuration is effective on all ports, but has a lower priority than the configuration made on
a specific port.
Examples
# Apply ACL 2000 as a multicast group filter for VLAN 2 so that the hosts in this VLAN can join only the
m u l t i c a s t g r o u p 2 2 5 .1.1.1.
<Sysname> system-view
[Sysname] acl number 2000
[Sysname-acl-basic-2000] rule permit source 225.1.1.1 0
[Sysname-acl-basic-2000] quit
[Sysname] igmp-snooping
[Sysname-igmp-snooping] group-policy 2000 vlan 2
Related commands
igmp-snooping group-policy
host-aging-time (IGMP-snooping view)
Use host-aging-time to set the aging timer for dynamic member ports globally.
Use undo host-aging-time to restore the default.
Syntax
host-aging-time interval
undo host-aging-time
Default
The default setting is 260 seconds.

12
Views
IGMP-snooping view
Predefined user roles
network-admin
Parameters
interval: Sets an aging timer (in seconds) for dynamic member ports, in the range of 200 to 1000.
Usage guidelines
The global configuration is effective on all VLANs, but has a lower priority than the configuration made
in a specific VLAN.
Examples
# Set the aging timer for dynamic member ports to 300 seconds globally.
<Sysname> system-view
[Sysname] igmp-snooping
[Sysname-igmp-snooping] host-aging-time 300
Related commands
igmp-snooping host-aging-time
igmp-snooping
Use igmp-snooping to enable IGMP snooping globally and enter IGMP-snooping view.
Use undo igmp-snooping to disable IGMP snooping globally.
Syntax
igmp-snooping
undo igmp-snooping
Default
IGMP snooping is disabled.
Views
System view
Predefined user roles
network-admin
Examples
# Enable IGMP snooping globally and enter IGMP-snooping view.
<Sysname> system-view
[Sysname] igmp-snooping
[Sysname-igmp-snooping]
Related commands
igmp-snooping enable

13
igmp-snooping drop-unknown
Use igmp-snooping drop-unknown to enable dropping unknown multicast data for a VLAN.
Use undo igmp-snooping drop-unknown to disable dropping unknown multicast data for a VLAN.
Syntax
igmp-snooping drop-unknown
undo igmp-snooping drop-unknown
Default
Dropping unknown multicast data in a VLAN is disabled and unknown multicast data is flooded in the
VLAN.
Views
VLAN view
Predefined user roles
network-admin
Usage guidelines
You must enable IGMP snooping for a VLAN before you configure this command for the VLAN.
The configuration made in VLAN view is only effective on the current VLAN.
Examples
# Enable IGMP snooping and the function of dropping unknown multicast data for VLAN 2.
<Sysname> system-view
[Sysname] igmp-snooping
[Sysname-igmp-snooping] quit
[Sysname] vlan 2
[Sysname-vlan2] igmp-snooping enable
[Sysname-vlan2] igmp-snooping drop-unknown
Related commands
igmp-snooping enable
igmp-snooping enable
Use igmp-snooping enable to enable IGMP snooping for a VLAN.
Use undo igmp-snooping enable to disable IGMP snooping for a VLAN.
Syntax
igmp-snooping enable
undo igmp-snooping enable
Default
IGMP snooping is disabled in a VLAN.
Views
VLAN view