HP A5120 EI Series Installation manual

HP A5120 EI Switch Series
IP Multicast
Command Reference
Abstract
This document describes the commands and command syntax options available for the HP A Series
products.
This document is intended for network planners, field technical support and servicing engineers, and
network administrators who work with HP A Series products.
Part number: 5998-1786
Software version: Release 2208
Document version: 5W100-20110530

Legal and notice information
© Copyright 2011 Hewlett-Packard Development Company, L.P.
No part of this documentation may be reproduced or transmitted in any form or by any means without
prior written consent of Hewlett-Packard Development Company, L.P.
The information contained herein is subject to change without notice.
HEWLETT-PACKARD COMPANY MAKES NO WARRANTY OF ANY KIND WITH REGARD TO THIS
MATERIAL, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
AND FITNESS FOR A PARTICULAR PURPOSE. Hewlett-Packard shall not be liable for errors contained
herein or for incidental or consequential damages in connection with the furnishing, performance, or use
of this material.
The only warranties for HP products and services are set forth in the express warranty statements
accompanying such products and services. Nothing herein should be construed as constituting an
additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein.

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Contents
IGMP snooping configuration commands····················································································································· 1
display igmp-snooping group ·································································································································1
display igmp-snooping statistics ·····························································································································2
display mac-address multicast ································································································································3
dot1p-priority (IGMP snooping view)·····················································································································5
fast-leave (IGMP snooping view) ····························································································································5
group-policy (IGMP snooping view)·······················································································································6
host-aging-time (IGMP snooping view) ··················································································································7
igmp-snooping··························································································································································8
igmp-snooping access-policy ··································································································································8
igmp-snooping dot1p-priority··································································································································9
igmp-snooping drop-unknown ····························································································································· 10
igmp-snooping enable ·········································································································································· 10
igmp-snooping fast-leave······································································································································ 11
igmp-snooping general-query source-ip·············································································································· 12
igmp-snooping group-limit···································································································································· 13
igmp-snooping group-policy································································································································· 13
igmp-snooping host-aging-time ···························································································································· 14
igmp-snooping host-join········································································································································ 15
igmp-snooping last-member-query-interval·········································································································· 16
igmp-snooping leave source-ip ···························································································································· 17
igmp-snooping max-response-time······················································································································· 18
igmp-snooping overflow-replace·························································································································· 18
igmp-snooping proxying enable·························································································································· 19
igmp-snooping querier·········································································································································· 20
igmp-snooping query-interval······························································································································· 21
igmp-snooping report source-ip ··························································································································· 21
igmp-snooping router-aging-time ························································································································· 22
igmp-snooping router-port-deny··························································································································· 23
igmp-snooping source-deny ································································································································· 24
igmp-snooping special-query source-ip··············································································································· 24
igmp-snooping static-group ·································································································································· 25
igmp-snooping static-router-port··························································································································· 26
igmp-snooping version·········································································································································· 27
last-member-query-interval (IGMP snooping view)····························································································· 27
mac-address multicast ··········································································································································· 28
max-response-time (IGMP snooping view)·········································································································· 29
overflow-replace (IGMP snooping view)············································································································· 30
report-aggregation (IGMP snooping view)········································································································· 30
reset igmp-snooping group ·································································································································· 31
reset igmp-snooping statistics······························································································································· 31
router-aging-time (IGMP snooping view) ············································································································ 32
source-deny (IGMP snooping view)····················································································································· 32
Multicast VLAN configuration commands···················································································································34
display multicast-vlan ············································································································································ 34
multicast-vlan·························································································································································· 35
port (multicast VLAN view) ··································································································································· 36
port multicast-vlan·················································································································································· 36
subvlan (multicast VLAN view)····························································································································· 37

iv
MLD snooping configuration commands·····················································································································38
display mld-snooping group································································································································· 38
display mld-snooping statistics····························································································································· 39
dot1p-priority (MLD snooping view)···················································································································· 41
fast-leave (MLD snooping view) ··························································································································· 41
group-policy (MLD snooping view)······················································································································ 42
host-aging-time (MLD snooping view) ················································································································· 43
last-listener-query-interval (MLD snooping view)································································································· 43
max-response-time (MLD snooping view)············································································································ 44
mld-snooping ························································································································································· 45
mld-snooping access-policy·································································································································· 45
mld-snooping done source-ip ······························································································································· 46
mld-snooping dot1p-priority ································································································································· 47
mld-snooping drop-unknown································································································································ 48
mld-snooping enable············································································································································· 48
mld-snooping fast-leave ········································································································································ 49
mld-snooping general-query source-ip ················································································································ 50
mld-snooping group-limit ······································································································································ 51
mld-snooping group-policy··································································································································· 51
mld-snooping host-aging-time······························································································································· 53
mld-snooping host-join ·········································································································································· 53
mld-snooping last-listener-query-interval·············································································································· 54
mld-snooping max-response-time························································································································· 55
mld-snooping overflow-replace···························································································································· 56
mld-snooping proxying enable ···························································································································· 57
mld-snooping querier ············································································································································ 57
mld-snooping query-interval ································································································································· 58
mld-snooping report source-ip······························································································································ 59
mld-snooping router-aging-time···························································································································· 60
mld-snooping router-port-deny ····························································································································· 60
mld-snooping source-deny···································································································································· 61
mld-snooping special-query source-ip ················································································································· 62
mld-snooping static-group····································································································································· 62
mld-snooping static-router-port ····························································································································· 63
mld-snooping version ············································································································································ 64
overflow-replace (MLD snooping view)··············································································································· 65
report-aggregation (MLD snooping view)··········································································································· 66
reset mld-snooping group····································································································································· 66
reset mld-snooping statistics ································································································································· 67
router-aging-time (MLD snooping view) ·············································································································· 67
source-deny (MLD snooping view)······················································································································· 68
IPv6 multicast VLAN configuration commands ···········································································································69
display multicast-vlan ipv6 ··································································································································· 69
multicast-vlan ipv6················································································································································· 70
port (IPv6 multicast VLAN view)··························································································································· 71
port multicast-vlan ipv6········································································································································· 71
subvlan (IPv6 multicast VLAN view) ···················································································································· 72
Support and other resources ········································································································································73
Contacting HP ································································································································································ 73
Subscription service ·············································································································································· 73
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1
IGMP snooping configuration commands
display igmp-snooping group
Syntax
display igmp-snooping group [ vlan vlan-id ] [ slot slot-number ] [ verbose ] [ |{ begin | exclude |
include } regular-expression ]
View
Any view
Default level
1: Monitor level
Parameters
vlan vlan-id: Displays the IGMP snooping group information in the specified VLAN, where vlan-id is in
the range of 1 to 4094. If you do not specify a VLAN, this command displays the IGMP snooping group
information in all VLANs.
slot slot-number: Displays information about IGMP snooping groups on the specified switch. If the switch
does not support IRF, the slot-number argument must take 1. If the device supports IRF, the slot-number
argument represents the IRF member ID of the device. In an IRF fabric, if no member switch is specified,
the command displaysinformation about IGMP snooping groups on each member switch.
verbose: Displays detailed IGMP snooping group information.
|: Filters command output by specifying a regular expression. For more information about regular
expressions, see the Fundamentals Configuration Guide.
begin: Displays the first line that matches the specified regular expression and all lines that follow.
exclude: Displays all lines that do not match the specified regular expression.
include: Displays all lines that match the specified regular expression.
regular-expression: Specifies a regular expression, which is a case-sensitive string of 1 to 256 characters.
Description
Use the display igmp-snooping group command to display the IGMP snooping group information,
including both dynamic entries and static entries.
Examples
# Display detailed IGMP snooping group information in VLAN 2.
<Sysname> display igmp-snooping group vlan 2 verbose
Total 1 IP Group(s).
Total 1 IP Source(s).
Total 1 MAC Group(s).
Port flags: D-Dynamic port, S-Static port, C-Copy port
Subvlan flags: R-Real VLAN, C-Copy VLAN
Vlan(id):2.
Total 1 IP Group(s).
Total 1 IP Source(s).

2
Total 1 MAC Group(s).
Router port(s):total 1 port(s).
GE1/0/1 (D) ( 00:01:30 )
IP group(s):the following ip group(s) match to one mac group.
IP group address:224.1.1.1
(0.0.0.0, 224.1.1.1):
Attribute: Host Port
Host port(s):total 1 port(s).
GE1/0/2 (D) ( 00:03:23 )
MAC group(s):
MAC group address:0100-5e01-0101
Host port(s):total 1 port(s).
GE1/0/2
Table 1 Output description
Field
Description
Total 1 IP Group(s).
Total number of IP multicast groups
Total 1 IP Source(s).
Total number of multicast sources
Total 1 MAC Group(s).
Total number of MAC multicast groups
Port flags: D-Dynamic port, S-
Static port, C-Copy port
Port flags: D for dynamic port, S for static port, C for port copied from
a (*, G) entry to an (S, G) entry
Subvlan flags: R-Real VLAN, C-
Copy VLAN
Sub-VLAN flags: R for real egress sub-VLAN under the current entry, C
for sub-VLAN copied from a (*, G) entry to an (S, G) entry
Router port(s)
Number of router ports
( 00:01:30 )
Remaining time of the aging timer for the dynamic member port or
router port
IP group address
Address of IP multicast group
(0.0.0.0, 224.1.1.1)
An (S, G) entry, where 0.0.0.0 implies any multicast source
MAC group address
Address of MAC multicast group
Attribute
Attribute of IP multicast group
Host port(s)
Number of member ports
display igmp-snooping statistics
Syntax
display igmp-snooping statistics [ |{ begin | exclude | include } regular-expression ]
View
Any view
Default level
1: Monitor level
Parameters
|: Filters command output by specifying a regular expression. For more information about regular
expressions, see the Fundamentals Configuration Guide.

3
begin: Displays the first line that matches the specified regular expression and all lines that follow.
exclude: Displays all lines that do not match the specified regular expression.
include: Displays all lines that match the specified regular expression.
regular-expression: Specifies a regular expression, which is a case-sensitive string of 1 to 256 characters.
Description
Use the display igmp-snooping statistics command to display the statistics information of IGMP messages
learned through IGMP snooping.
Examples
# Display the statistics information of IGMP messages learned through 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.
Table 2 Output description
Field
Description
general queries
General query messages
specific queries
Group-specific query messages
reports
Report messages
leaves
Leave messages
reports with right and wrong records
Report messages with correct and incorrect records
specific sg query packet(s)
Group-and-source-specific query messages
error IGMP messages
IGMP messages with errors
display mac-address multicast
Syntax
display mac-address [ mac-address [ vlan vlan-id ] | [ multicast ] [ vlan vlan-id ] [ count ] ] [ |{ begin |
exclude | include } regular-expression ]
View
Any view

4
Default level
1: Monitor level
Parameters
mac-address: Displays the multicast MAC address entry for the specified MAC address. The MAC address
can be any multicast MAC address except 0100-5Exx-xxxx and 3333-xxxx-xxxx, where x represents an
arbitrary hexadecimal number from 0 to F. A multicast MAC address is a MAC address whose the least
significant bit of the most significant octet is 1.
vlan vlan-id: Displays multicast MAC address entries for the specified VLAN, where vlan-id is in the range
of 1 to 4094. If you do not specify a VLAN, this command displays the static multicast MAC address
entries for all VLANs.
multicast: Displays static multicast MAC address entries.
count: Displays the number of matched static multicast MAC address entries. With this argument
specified, the number of matched static multicast MAC address entries is displayed, without displaying
any content of the matched entries.
|: Filters command output by specifying a regular expression. For more information about regular
expressions, see the Fundamentals Configuration Guide.
begin: Displays the first line that matches the specified regular expression and all lines that follow.
exclude: Displays all lines that do not match the specified regular expression.
include: Displays all lines that match the specified regular expression.
regular-expression: Specifies a regular expression, which is a case-sensitive string of 1 to 256 characters.
Description
Use the display mac-address multicast command to display the static multicast MAC address entries.
With no parameters specified or with vlan, count, or both of them specified, this command displays all
MAC address table entries, including static multicast MAC address entries and unicast MAC address
entries.
Related commands: mac-address multicast; display mac-address (Layer 2—LAN Switching Command
Reference).
Examples
# Display the static multicast MAC address entries for VLAN 2.
<Sysname> display mac-address multicast vlan 2
MAC ADDR VLAN ID STATE PORT INDEX AGING TIME(s)
0100-0001-0001 2 Multicast GigabitEthernet1/0/1NOAGED
GigabitEthernet1/0/2
GigabitEthernet1/0/3
GigabitEthernet1/0/4
--- 1 mac address or addresses found ---
Table 3 Output description
Field
Description
MAC ADDR
MAC address
VLAN ID
ID of the VLAN to which the network device identified by the MAC
address belongs

5
Field
Description
STATE
Status of the MAC address; multicast indicates a static multicast MAC
address entry
PORT INDEX
Outgoing ports of the multicast MAC address entry
AGING TIME(s)
State of the aging timer. The aging timer for static multicast MAC
addresses has only one state: NOAGED, which indicates that this entry
never expires
1 mac address or addresses
found
One static multicast MAC address entry is found.
dot1p-priority (IGMP snooping view)
Syntax
dot1p-priority priority-number
undo dot1p-priority
View
IGMP snooping view
Default level
2: System level
Parameters
priority-number: Specifies 802.1p precedence for IGMP messages, in the range of 0 to 7. A higher
number indicates a higher precedence.
Description
Use the dot1p-priority command to configure 802.1p precedence for IGMP messages globally.
Use the undo dot1p-priority command to restore the default.
The default 802.1p precedence for IGMP messages is 0.
Examples
# Set 802.1p precedence for IGMP messages to 3 globally.
<Sysname> system-view
[Sysname] igmp-snooping
[Sysname-igmp-snooping] dot1p-priority 3
fast-leave (IGMP snooping view)
Syntax
fast-leave [ vlan vlan-list ]
undo fast-leave [ vlan vlan-list ]
View
IGMP snooping view
Default level
2: System level

6
Parameters
vlan vlan-list: Specifies one or multiple VLANs. You can provide up to 10 VLAN lists. For each list, you
can specify an individual VLAN in the form of vlan-id, or a VLAN range in the form of start-vlan-id to end-
vlan-id, where the end VLAN ID must be greater than the start VLAN ID. The effective range of a VLAN ID
is 1 to 4094.
Description
Use the fast-leave command to enable fast-leave processing globally. With this function enabled, when
the switch receives an IGMP leave message on a port, it directly removes that port from the multicast
forwarding entry of the specific group.
Use the undo fast-leave command to disable fast-leave processing globally.
By default, fast-leave processing is disabled.
This command works only on IGMP snooping–enabled VLANs.
If you do not specify any VLAN, the command takes effect in all VLANs. If you specify a VLAN or
multiple VLANs, the command takes effect in the specified VLANs only.
Related commands: igmp-snooping fast-leave.
Examples
# Enable fast-leave processing globally in VLAN 2.
<Sysname> system-view
[Sysname] igmp-snooping
[Sysname-igmp-snooping] fast-leave vlan 2
group-policy (IGMP snooping view)
Syntax
group-policy acl-number [ vlan vlan-list ]
undo group-policy [ vlan vlan-list ]
View
IGMP snooping view
Default level
2: System level
Parameters
acl-number: Specifies a basic or advanced ACL number, in the range of 2000 to 3999. The source
address or address range specified in the advanced ACL rule matches the multicast source addresses
specified in IGMPv3 reports, rather than the source address in the IP packets. The system assumes that an
IGMPv1 or IGMPv2 report or an IGMPv3 IS_EX or TO_EX report that does not carry a multicast source
address carries a multicast source address of 0.0.0.0.
vlan vlan-list: Specifies one or multiple VLANs. You can provide up to 10 VLAN lists. For each list, you
can specify an individual VLAN in the form of vlan-id, or a VLAN range in the form of start-vlan-id to end-
vlan-id, where the end VLAN ID must be greater than the start VLAN ID. The effective range of a VLAN ID
is 1 to 4094.
Description
Use the group-policy command to configure a global multicast group filter, namely to control the multicast
groups that a host can join.

7
Use the undo group-policy command to remove the configured global multicast group filter.
By default, no global multicast group filter is configured. Namely, a host can join any valid multicast
group.
If you do not specify any VLAN, the command takes effect in all VLANs. If you specify a VLAN or
multiple VLANs, the command takes effect in the specified VLANs only.
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 for a port in different VLANs. For a given VLAN, a newly
configured ACL rule overrides the existing one.
Related commands: igmp-snooping group-policy.
Examples
# Apply ACL 2000 as a multicast group filter in VLAN 2 so that hosts in this VLAN can join 225.1.1.1
only.
<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
host-aging-time (IGMP snooping view)
Syntax
host-aging-time interval
undo host-aging-time
View
IGMP snooping view
Default level
2: System level
Parameters
interval: Specifies an aging time for dynamic member ports in seconds. The effective range is 200 to
1000.
Description
Use the host-aging-time command to configure the aging time of dynamic member ports globally.
Use the undo host-aging-time command to restore the default.
By default, the aging time of dynamic member ports is 260 seconds.
This command works only on IGMP snooping–enabled VLANs.
Related commands: igmp-snooping host-aging-time.
Examples
# Set the aging time for dynamic member ports to 300 seconds globally.
<Sysname> system-view
[Sysname] igmp-snooping

8
[Sysname-igmp-snooping] host-aging-time 300
igmp-snooping
Syntax
igmp-snooping
undo igmp-snooping
View
System view
Default level
2: System level
Parameters
None
Description
Use the igmp-snooping command to enable IGMP snooping globally and enter IGMP snooping view.
Use the undo igmp-snooping command to disable IGMP snooping globally.
By default, IGMP snooping is disabled.
Related commands: igmp-snooping enable.
Examples
# Enable IGMP snooping globally and enter IGMP snooping view.
<Sysname> system-view
[Sysname] igmp-snooping
[Sysname-igmp-snooping]
igmp-snooping access-policy
Syntax
igmp-snooping access-policy acl-number
undo igmp-snooping access-policy { acl-number | all }
View
User profile view
Default level
2: System level
Parameters
acl-number: Specifies a basic or advanced ACL number, in the range of 2000 to 3999. The source
address or address range specified in the advanced ACL is used to match the multicast source address or
addresses specified in IGMPv3 reports, rather than the source addresses of the IP packets. The system
assumes that an IGMPv1 or IGMPv2 report or an IGMPv3 IS_EX and TO_EX report that does not carry a
multicast source address carries a multicast source address of 0.0.0.0.
all: Specifies all ACLs.

9
Description
Use the igmp-snooping access-policy command to configure a multicast user control policy.
Use the undo igmp-snooping access-policy command to remove the configuration.
By default, no user control policy is configured. Namely, a user can join any valid multicast group.
You can use this command repeatedly to configure multiple multicast user control policies.
Examples
# Create and enable a user profile named abc to allow users to join 225.1.1.1 only.
<Sysname> system-view
[Sysname] acl number 2001
[Sysname-acl-basic-2001] rule permit source 225.1.1.1 0
[Sysname-acl-basic-2001] quit
[Sysname] user-profile abc
[Sysname-user-profile-abc] igmp-snooping access-policy 2001
[Sysname-user-profile-abc] quit
[Sysname] user-profile abc enable
igmp-snooping dot1p-priority
Syntax
igmp-snooping dot1p-priority priority-number
undo igmp-snooping dot1p-priority
View
VLAN view
Default level
2: System level
Parameters
priority-number: Specifies 802.1p precedence for IGMP messages, in the range of 0 to 7. A higher
number indicates a higher precedence.
Description
Use the igmp-snooping dot1p-priority command to configure 802.1p precedence for IGMP messages in
a VLAN.
Use the undo igmp-snooping dot1p-priority command to restore the default.
The default 802.1p precedence for IGMP messages is 0.
Before you configure this command in a VLAN, enable IGMP snooping in the VLAN.
Related commands: igmp-snooping enable.
Examples
# Enable IGMP snooping in VLAN 2 and set 802.1p precedence for IGMP messages in the VLAN to 3.
<Sysname> system-view
[Sysname] igmp-snooping
[Sysname-igmp-snooping] quit
[Sysname] vlan 2
[Sysname-vlan2] igmp-snooping enable

10
[Sysname-vlan2] igmp-snooping dot1p-priority 3
igmp-snooping drop-unknown
Syntax
igmp-snooping drop-unknown
undo igmp-snooping drop-unknown
View
VLAN view
Default level
2: System level
Parameters
None
Description
Use the igmp-snooping drop-unknown command to enable the function of dropping unknown multicast
data in the current VLAN.
Use the undo igmp-snooping drop-unknown command to disable the function of dropping unknown
multicast data in the current VLAN.
By default, this function is disabled. That is, unknown multicast data is flooded.
This command takes effect only if IGMP snooping is enabled in the VLAN.
Related commands: igmp-snooping enable.
Examples
# In VLAN 2, enable IGMP snooping and the function of dropping unknown multicast data.
<Sysname> system-view
[Sysname] igmp-snooping
[Sysname-igmp-snooping] quit
[Sysname] vlan 2
[Sysname-vlan2] igmp-snooping enable
[Sysname-vlan2] igmp-snooping drop-unknown
igmp-snooping enable
Syntax
igmp-snooping enable
undo igmp-snooping enable
View
VLAN view
Default level
2: System level
Parameters
None

11
Description
Use the igmp-snooping enable command to enable IGMP snooping in the current VLAN.
Use the undo igmp-snooping enable command to disable IGMP snooping in the current VLAN.
By default, IGMP snooping is disabled in a VLAN.
You must enable IGMP snooping globally before you enable it in a VLAN.
Related commands: igmp-snooping.
Examples
# Enable IGMP snooping in VLAN 2.
<Sysname> system-view
[Sysname] igmp-snooping
[Sysname-igmp-snooping] quit
[Sysname] vlan 2
[Sysname-vlan2] igmp-snooping enable
igmp-snooping fast-leave
Syntax
igmp-snooping fast-leave [ vlan vlan-list ]
undo igmp-snooping fast-leave [ vlan vlan-list ]
View
Layer 2 Ethernet interface view, Layer 2 aggregate interface view, port group view
Default level
2: System level
Parameters
vlan vlan-list: Specifies one or multiple VLANs. You can provide up to 10 VLAN lists. For each list, you
can specify an individual VLAN in the form of vlan-id, or a VLAN range in the form of start-vlan-id to end-
vlan-id, where the end VLAN ID must be greater than the start VLAN ID. The effective range of a VLAN ID
is 1 to 4094.
Description
Use the igmp-snooping fast-leave command to enable fast-leave processing on the current port or group
of ports. With this function enabled, when the switch receives an IGMP leave message on a port, it
directly removes that port from the multicast forwarding entry of the specific group.
Use the undo igmp-snooping fast-leave command to disable fast-leave processing on the current port or
group of ports.
By default, fast-leave processing is disabled.
This command works only on IGMP snooping–enabled VLANs.
If you do not specify any VLAN when using this command in Layer 2 Ethernet interface view or Layer 2
aggregate interface view, the command takes effect in all VLANs that the interface belongs to. If you
specify a VLAN or multiple VLANs, the command takes effect in the specified VLANs the interface
belongs to.

12
If you do not specify any VLAN when using this command in port group view, the command takes effect
on all the ports in this group. If you specify a VLAN or multiple VLANs, the command takes effect only on
those ports in this group that belong to the specified VLANs.
Related commands: fast-leave.
Examples
# Enable fast-leave processing on GigabitEthernet 1/0/1 in VLAN 2.
<Sysname> system-view
[Sysname] interface gigabitethernet 1/0/1
[Sysname-GigabitEthernet1/0/1] igmp-snooping fast-leave vlan 2
igmp-snooping general-query source-ip
Syntax
igmp-snooping general-query source-ip { ip-address | current-interface }
undo igmp-snooping general-query source-ip
View
VLAN view
Default level
2: System level
Parameters
ip-address: Specifies the source address of IGMP general queries, which can be any legal IP address.
current-interface: Sets the source address of IGMP general queries to the address of the current VLAN
interface. If the current VLAN interface does not have an IP address, the default IP address 0.0.0.0 will
be used as the source IP address of IGMP general queries.
Description
Use the igmp-snooping general-query source-ip command to configure the source address of IGMP
general queries.
Use the undo igmp-snooping general-query source-ip command to restore the default.
By default, the source IP address of IGMP general queries is 0.0.0.0.
This command takes effect only if IGMP snooping is enabled in the VLAN.
Related commands: igmp-snooping enable.
Examples
# In VLAN 2, enable IGMP snooping and specify 10.1.1.1 as the source IP address of IGMP general
queries.
<Sysname> system-view
[Sysname] igmp-snooping
[Sysname-igmp-snooping] quit
[Sysname] vlan 2
[Sysname-vlan2] igmp-snooping enable
[Sysname-vlan2] igmp-snooping general-query source-ip 10.1.1.1

13
igmp-snooping group-limit
Syntax
igmp-snooping group-limit limit [ vlan vlan-list ]
undo igmp-snooping group-limit [ vlan vlan-list ]
View
Layer 2 Ethernet interface view, Layer 2 aggregate interface view, port group view
Default level
2: System level
Parameters
limit: Specifies the maximum number of multicast groups that a port can join. The value ranges from 1 to
1000.
vlan vlan-list: Specifies one or multiple VLANs. You can provide up to 10 VLAN lists. For each list, you
can specify an individual VLAN in the form of vlan-id, or a VLAN range in the form of start-vlan-id to end-
vlan-id, where the end VLAN ID must be greater than the start VLAN ID. The effective range of a VLAN ID
is 1 to 4094.
Description
Use the igmp-snooping group-limit command to configure the maximum number of multicast groups that
a port can join.
Use the undo igmp-snooping group-limit command to restore the default.
The default setting is 1000.
If you do not specify any VLAN when using this command in Layer 2 Ethernet interface view or Layer 2
aggregate interface view, the command takes effect in all VLANs that the interface belongs to. If you
specify a VLAN or multiple VLANs, the command takes effect in the specified VLANs that the interface
belongs to.
If you do not specify any VLAN when using this command in port group view, the command takes effect
on all the ports in this group. If you specify a VLAN or multiple VLANs, the command takes effect only on
those ports in this group that belong to the specified VLANs.
Examples
# Configure to allow up to10 multicast groups that GigabitEthernet 1/0/1 in VLAN 2 can join.
<Sysname> system-view
[Sysname] interface gigabitethernet 1/0/1
[Sysname-GigabitEthernet1/0/1] igmp-snooping group-limit 10 vlan 2
igmp-snooping group-policy
Syntax
igmp-snooping group-policy acl-number [ vlan vlan-list ]
undo igmp-snooping group-policy [ vlan vlan-list ]
View
Layer 2 Ethernet interface view, Layer 2 aggregate interface view, port group view

14
Default level
2: System level
Parameters
acl-number: Specifies a basic or advanced ACL number, in the range of 2000 to 3999. The source
address or address range specified in the advanced ACL rule matches the multicast source addresses
specified in IGMPv3 reports, rather than the source address in the IP packets. The system assumes that an
IGMPv1 or IGMPv2 report or an IGMPv3 IS_EX and TO_EX report that does not carry a multicast source
address carries a multicast source address of 0.0.0.0.
vlan vlan-list: Specifies one or multiple VLANs. You can provide up to 10 VLAN lists. For each list, you
can specify an individual VLAN in the form of vlan-id, or a VLAN range in the form of start-vlan-id to end-
vlan-id, where the end VLAN ID must be greater than the start VLAN ID. The effective range of a VLAN ID
is 1 to 4094.
Description
Use the igmp-snooping group-policy command to configure a multicast group filter on the current port(s),
namely, to control the multicast groups that the hosts on the port can join.
Use the undo igmp-snooping group-policy command to remove the multicast group filter.
By default, no multicast group filter is configured on an interface. Namely, a host can join any valid
multicast group.
If you do not specify any VLAN when using this command in Layer 2 Ethernet interface view or Layer 2
aggregate interface view, the command takes effect in all VLANs that the interface belongs to. If you
specify a VLAN or multiple VLANs, the command takes effect in the specified VLANs that the interface
belongs to.
If you do not specify any VLAN when using this command in port group view, the command takes effect
on all the ports in this group. If you specify a VLAN or multiple VLANs, the command takes effect only on
those ports in this group that belong to the specified VLANs.
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 for a port in different VLANs. For a given VLAN, a newly
configured ACL rule overrides the existing one.
Related commands: group-policy.
Examples
# Apply ACL 2000 as a multicast group filter so that hosts on GigabitEthernet 1/0/1 in VLAN 2 can join
225.1.1.1 only.
<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] interface gigabitethernet 1/0/1
[Sysname-GigabitEthernet1/0/1] igmp-snooping group-policy 2000 vlan 2
igmp-snooping host-aging-time
Syntax
igmp-snooping host-aging-time interval
undo igmp-snooping host-aging-time

15
View
VLAN view
Default level
2: System level
Parameters
interval: Specifies an aging time for dynamic member ports in seconds. The value range is 200 to 1000.
Description
Use the igmp-snooping host-aging-time command to configure the aging time for dynamic member ports
in the current VLAN.
Use the undo igmp-snooping host-aging-time command to restore the default.
By default, the aging time of dynamic member ports is 260 seconds.
This command takes effect only if IGMP snooping is enabled in the VLAN.
Related commands: host-aging-time and igmp-snooping enable.
Examples
# Enable IGMP snooping and set the aging time for dynamic member ports to 300 seconds in VLAN 2.
<Sysname> system-view
[Sysname] igmp-snooping
[Sysname-igmp-snooping] quit
[Sysname] vlan 2
[Sysname-vlan2] igmp-snooping enable
[Sysname-vlan2] igmp-snooping host-aging-time 300
igmp-snooping host-join
Syntax
igmp-snooping host-join group-address [ source-ip source-address ] vlan vlan-id
undo igmp-snooping host-join group-address [ source-ip source-address ] vlan vlan-id
View
Layer 2 Ethernet interface view, Layer 2 aggregate interface view, port group view
Default level
2: System level
Parameters
group-address: Specifies the address of the multicast group that the simulated host will join, in the range
of 224.0.1.0 to 239.255.255.255.
source-address: Specifies the address of the multicast source that the simulated host will join. The value of
this argument should be a valid unicast address or 0.0.0.0. A source IP address of 0.0.0.0 means no
restriction on the multicast source.
vlan vlan-id: Specifies the VLAN that comprises the ports, where vlan-id is in the range of 1 to 4094.
Description
Use the igmp-snooping host-join command to enable simulated joining on a port. That is, you configure
the current port as a simulated member host for the specified multicast group or source and group.