HP 5500 Ei 5500 Si Switch Series Configuration Guide

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commands configured in PIM view can still take effect. In addition, in IGMPv1, the designated router (DR) 
i s  e l e c t e d  b y  t h e  w o r k i n g  m u l t i c a s t  ro u t i n g  p ro t o c o l  ( s u c h  a s  P I M )  t o  s e r v e  a s  t h e  I G M P  q u e r i e r.  T h e re f o re ,  
a downstream interface running IGMPv1 cannot be elec ted as the DR and thus cannot serve as the IGMP 
querier.  
You cannot enable IGMP proxying on a VLAN interface with IGMP snooping enabled, or vice...

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Task   Command  
Display IGMP group information.  display igmp [ 
all-instance | 
vpn-instance  vpn-instance-name  ] 
group  [ group-address  | interface  
interface-type interface-number  ] 
[ static  |  verbose  ] [ | { begin | 
exclude  | include  } 
regular-expression  ]
  Available in any view 
Display the Layer 2 port 
information of IGMP groups. 
display igmp group port-info
 [ vlan  
vlan-id  ] [ slot  slot-number  ] 
[ verbose  ] [ | { begin |  exclude | 
include  } regular-expression ]...

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Task   Command  
Display the multicast group 
information created from IGMPv1 
and IGMPv2 reports based on the 
configured IGMP SSM mappings.  display igmp
 [ all-instance | 
vpn-instance  vpn-instance-name  ] 
ssm-mapping  group  
[ group-address  | interface 
interface-type  interface-number  ] 
[ verbose  ] [ | { begin |  exclude | 
include  } regular-expression ]  Available in any view 
Display information about the hosts 
that join the group based on IGMP 
SSM mappings on an interface....

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IGMP configuration examples 
Basic IGMP functions configuration example 
Network requirements 
Receivers receive VOD information through multicast. Receivers of different organizations form stub 
networks N1 and N2, and Host A and Host C are receivers in N1 and N2 respectively.  
IGMPv2 runs between Switch A and N1. IGMPv2 runs  between the other two switches and N2. Switch 
B acts as the IGMP querier in N2 because it has a lower IP address.   
The hosts in N1 can join only multicast group...

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[SwitchA-Vlan-interface100] pim dm 
[SwitchA-Vlan-interface100] quit 
[SwitchA] interface vlan-interface 101 
[SwitchA-Vlan-interface101] pim dm 
[SwitchA-Vlan-interface101] quit 
# Enable IP multicast routing on Switch B, enable PIM-DM on each interface, and enable IGMP on 
VLAN-interface 200.  
 system-view 
[SwitchB] multicast routing-enable 
[SwitchB] interface vlan-interface 200 
[SwitchB-Vlan-interface200] igmp enable 
[SwitchB-Vlan-interface200] pim dm 
[SwitchB-Vlan-interface200] quit...

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SSM mapping configuration example 
Network requirements 
The PIM-SM domain applies both the ASM model and SSM model for multicast delivery. Switch D’s 
VLAN-interface 104 serves as the C-BSR and C-RP. The SSM group range is 232.1.1.0/24. 
IGMPv3 runs on Switch D’s VLAN-interface 400. The receiver host runs IGMPv2, and does not support 
IGMPv3. Therefore, the Receiver host cannot specify expected multicast sources in its membership 
reports.  
S o u r c e  1,  S o u r c e  2,  a n d  S o u r c e  3...

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 system-view 
[SwitchD] multicast routing-enable 
[SwitchD] interface vlan-interface 400 
[SwitchD-Vlan-interface400] igmp enable 
[SwitchD-Vlan-interface400] igmp version 3 
[SwitchD-Vlan-interface400] igmp ssm-mapping enable 
[SwitchD-Vlan-interface400] pim sm 
[SwitchD-Vlan-interface400] quit 
[SwitchD] interface vlan-interface 103 
[SwitchD-Vlan-interface103] pim sm 
[SwitchD-Vlan-interface103] quit 
[SwitchD] interface vlan-interface 104 
[SwitchD-Vlan-interface104] pim sm...

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[SwitchD-igmp] ssm-mapping 232.1.1.0 24 133.133.3.1 
[SwitchD-igmp] quit 
6. Verify the configuration: 
# Display the IGMP SSM mapping information fo r multicast group 232.1.1.1 on Switch D. 
[SwitchD] display igmp ssm-mapping 232.1.1.1 
Vpn-Instance: public net 
Group: 232.1.1.1 
Source list:  
             133.133.1.1 
             133.133.3.1 
# Display the IGMP group information created based on the IGMP SSM mappings on Switch D. 
[SwitchD] display igmp ssm-mapping group 
Total 1 IGMP...

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IGMP proxying configuration example 
Network requirements 
PIM-DM is required to run on the core network. Host A and Host C in the stub network receive VOD 
information destined to multicast group 224.1.1.1.  
Configure the IGMP proxying feature on Switch B so that Switch B can maintain group memberships and 
forward multicast traffic without running PIM-DM.  
Figure 37  Network diagram  
 
 
Configuration procedure 
1. Configure IP addresses: 
# Configure the IP address and subnet mask of each...

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[SwitchB-Vlan-interface200] igmp enable 
[SwitchB-Vlan-interface200] quit 
3. Verify the configuration: 
# Display IGMP information on VLAN-interface 100 of Switch B.  
[SwitchB] display igmp interface vlan-interface 100 verbose 
 Vlan-interface100(192.168.1.2): 
   IGMP proxy is enabled 
   Current IGMP version is 2 
   Multicast routing on this interface: enabled 
   Require-router-alert: disabled 
   Version1-querier-present-timer-expiry: 00:00:20 
# Display IGMP group information on Switch A....