HP 5500 Ei 5500 Si Switch Series Configuration Guide

 325 
Configuring MLD SSM mappings 
By performing this configuration multiple times, you can map an IPv6 multicast group to different IPv6 
multicast sources. 
If MLDv2 is enabled on a VLAN interface of a switch , and if a port in that VLAN is configured as a 
simulated host, the simulated host will send MLDv2 repo rts even if you did not specify an IPv6 multicast 
source when you configure simulated joining with the  mld-snooping host-join c o m m a n d.  I n  t h i s  c a s e,  t h e  
corresponding...

 326 
Step Command Remarks 
1.  Enter system view. 
system-view  N/A 
2.  Enter interface view.  interface
 interface-type 
interface-number  N/A 
3.
  Enable the MLD proxying 
feature.  mld proxying enable 
Disabled by default 
 
Configuring IPv6 multicast forwarding on a downstream 
interface 
Typically, to avoid duplicate multicast flows, only queriers can forward IPv6 multicast traffic. On MLD 
proxy devices, a downstream interface must be a querier in order to forward IPv6 multicast traffic to...

 327 
Task  Command  Remarks 
Display information about the hosts 
tracked by MLD on an interface.  display mld host interface 
interface-type interface-number
 
group  ipv6-group-address  [ source 
ipv6-source-address  ] [ | { begin  | 
exclude  | include  } 
regular-expression  ]  Available in any view 
Display information about the hosts 
tracked by MLD on the Layer 2 
ports.  display mld host port-info
 vlan  
vlan-id  group  ipv6-group-address  
[ source  ipv6-source-address ] 
[ vlan  vlan-id  ] [...

 328 
Task  Command  Remarks 
Remove the dynamic Layer 2 port 
entries of a specified MLD group or 
all MLD groups.  reset mld group port-info
 { all | 
ipv6-group-address  } [ vlan 
vlan-id  ]  Available in user view 
Clear MLD SSM mappings.  reset mld ssm-mapping group 
{ all  
|  interface  interface-type 
interface-number {  all | 
ipv6-group-address  [ prefix-length  ] 
[ ipv6-source-address 
[ prefix-length ] ] } }  Available in user view 
 
 
IMPORTANT: 
The 
reset mld group  command might cause...

 329 
Figure 87 Network diagram 
 
 
Configuration procedure 
1. Enable IPv6 forwarding and configure IPv6 addresses and IPv6 unicast routing: 
Enable IPv6 forwarding on each switch and conf igure an IP address and prefix length for each 
interface as shown in  Figure 87. (Details not shown.) 
Conf

igure OSPFv3 for interoperation between the switches. Ensure the network-layer 
interoperation among the switch es on the IPv6 PIM network and dynamic update of routing 
information between the switches...

 330 
[SwitchB] interface vlan-interface 201 
[SwitchB-Vlan-interface201] pim ipv6 dm 
[SwitchB-Vlan-interface201] quit 
# Enable IPv6 multicast routing on Switch C, enable IPv6 PIM-DM on each interface, and enable 
MLD on VLAN-interface 200. 
 system-view 
[SwitchC] multicast ipv6 routing-enable 
[SwitchC] interface vlan-interface 200 
[SwitchC-Vlan-interface200] mld enable 
[SwitchC-Vlan-interface200] pim ipv6 dm 
[SwitchC-Vlan-interface200] quit 
[SwitchC] interface vlan-interface 202...

 331 
So u rc e  1,  So u rc e  2,  a n d  So u rc e  3  s e n d  I P v6  mu l t ic as t  p a cke t s  to  mu l t ic as t  g rou ps  i n  t h e  I P v 6  SS M  g rou p  
range. You can configure the MLD SSM mapping feature on Switch D so that the receiver host will receive 
IPv6 multicast data from Source 1 and Source 3 only.  
Figure 88 Network diagram 
 
Device  Interface  IPv6 address  Device   Interface  IPv6 address  
Source 1  —  1001::1/64 Source 3 —  3001::1/64 
Source 2  —  2001::1/64 Receiver —...

 332 
[SwitchD] interface vlan-interface 103 
[SwitchD-Vlan-interface103] pim ipv6 sm 
[SwitchD-Vlan-interface103] quit 
[SwitchD] interface vlan-interface 104 
[SwitchD-Vlan-interface104] pim ipv6 sm 
[SwitchD-Vlan-interface104] quit 
# Enable IPv6 multicast routing on Switch A, and enable IPv6 PIM-SM on each interface. 
 system-view 
[SwitchA] multicast ipv6 routing-enable 
[SwitchA] interface vlan-interface 100 
[SwitchA-Vlan-interface100] pim ipv6 sm 
[SwitchA-Vlan-interface100] quit 
[SwitchA]...

 333 
       3001::1 
# Display the IPv6 multicast group information created based on the configured MLD SSM 
mappings on Switch D. 
[SwitchD] display mld ssm-mapping group 
Total 1 MLD SSM-mapping Group(s). 
Interface group report information 
 Vlan-interface400 (4001::2): 
  Total 1 MLD SSM-mapping Group reported 
   Group Address: FF3E::101 
    Last Reporter: 4001::1 
    Uptime: 00:02:04 
    Expires: off 
# Display the IPv6 PIM routing table information on Switch D. 
[SwitchD] display pim ipv6...

 334 
Figure 89 Network diagram  
 
Configuration procedure 
1. Enable IPv6 forwarding and co nfigure the IPv6 addresses: 
Enable IPv6 forwarding on each switch and configure the IPv6 address and prefix length of each 
interface as per  Figure 89. (Details not 
 shown.)  
2. Enable IPv6 multicast routing, IP v6 PIM-DM, MLD, and MLD proxying: 
# Enable IPv6 multicast routing on Switch A, IPv6 PIM-DM on VLAN-interface 101, and MLD on 
VLAN-interface 100.  
 system-view 
[SwitchA] multicast ipv6...