HP 5500 Ei 5500 Si Switch Series Configuration Guide

 255 
Step Command Remarks 
4.  Set the maximum response 
delay for MLD general 
queries.   mld-snooping max-response-time 
interval
  10 seconds by default 
5.
  Set the MLD last-member 
query interval.   mld-snooping 
last-listener-query-interval interval
 1 second by default 
 
Configuring the source IPv6 addresses for MLD queries  
Step Command Remarks 
1.
  Enter system view. 
system-view  N/A 
2.  Enter VLAN view. 
vlan vlan-id   N/A 
3.  Configure the source IPv6 
address of MLD general 
queries....

 256 
Step Command Remarks 
3.  Enable MLD snooping 
proxying in the VLAN.  mld-snooping proxying enable 
Disabled by default 
 
Configuring the source IPv6 addresses for the MLD messages 
sent by the proxy 
You can set the source IPv6 addresses for the MLD  reports and done messages that the MLD snooping 
proxy sends on behalf of its attached hosts. 
To configure the source IPv6 addresses for the MLD messages that the MLD snooping proxy sends in a 
VLAN:  
 
Step Command Remarks 
1.   Enter system view....

 257 
the forwarding entry. Otherwise, the switch drops this report message, in which case, the IPv6 multicast 
data for the IPv6 multicast group is not sent to this port, and the user cannot retrieve the program. 
When you configure a multicast group filter in an IPv6 multicast VLAN, be sure to configure the filter in 
the sub-VLANs of the IPv6 multicast VLAN. Otherwise, the configuration does not take effect. 
In MLDv2, when a host is enabled to join multiple multicast groups, the multicast group...

 258 
Step Command Remarks 
1.  Enter system view. 
system-view  N/A 
2.  Enter MLD-snooping view. 
mld-snooping  N/A 
3.  Enable IPv6 multicast source 
port filtering.   source-deny 
port interface-list  Disabled by default 
 
Configuring IPv6 multicast source port filtering for a port 
 
Step Command Remarks 
1.  Enter system view. 
system-view  N/A 
2.  Enter Layer 2 Ethernet 
interface view, or port group 
view. 
• Enter Layer 2 Ethernet interface 
view: 
interface  interface-type 
interface-number...

 259 
Configuring MLD report suppression 
Configuration guidelines 
When a Layer 2 switch receives an MLD report from an IPv6 multicast group member, the Layer 2 switch 
forwards the message to the Layer 3 device that directly connects to the Layer 2 switch. When multiple 
members of an IPv6 multicast group are attached to the Layer 2 switch, the Layer 3 device might receive 
duplicate MLD reports for the IPv6 multicast group from these members.  
With the MLD report suppression function enabled, within...

 260 
Step Command Remarks 
2.  Enter Layer 2 Ethernet 
interface view, Layer 2 
aggregate interface view, 
port group view. 
• Enter Layer 2 Ethernet interface 
view or Layer 2 aggregate 
interface view: 
interface  interface-type 
interface-number  
• Enter port group view: 
port-group  manual 
port-group-name   Use either command. 
3.
  Set the maximum number of 
IPv6 multicast groups that a 
port can join.  mld-snooping group-limit 
limit 
[ vlan  vlan-list  ]  1000 by default.  
 
Enabling IPv6...

 261 
Step Command Remarks 
2.  Enter Layer 2 Ethernet 
interface view, Layer 2 
aggregate interface view, or 
port group view. 
• Enter Layer 2 Ethernet interface 
view or Layer 2 aggregate 
interface view: 
interface  interface-type 
interface-number  
• Enter port group view: 
port-group  manual 
port-group-name   Use either command. 
3.
  Enable IPv6 multicast group 
replacement.   mld-snooping overflow-replace
 
[ vlan  vlan-list  ]  Disabled by default. 
 
Setting the 802.1p precedence for MLD...

 262 
is found, the user is allowed to join the multicast group. Otherwise, the join report is dropped by the 
access switch.  
•   After receiving a done message from a host, the access switch matches the IPv6 multicast group 
address and source address against the policies. If a ma tch is found, the host is allowed to leave the 
group. Otherwise, the done message is dropped by the access switch.  
An IPv6 multicast user control policy is functionally similar to an IPv6 multicast group filter. A...

 263 
Step Command Remarks 
3.  Enable the MLD snooping host 
tracking function in the VLAN.  mld-snooping host-tracking 
Disabled by default 
 
Setting the DSCP value for MLD messages  
Step Command Remarks  
1.  Enter system view. 
system-view  N/A 
2.  Enter MLD-snooping view.  
mld-snooping  N/A 
3.  Set the DSCP value for MLD 
messages.   dscp
 dscp-value   By default, the DSCP value in MLD 
messages is 48.
 
 
 NOTE: 
This configuration applies to only the MLD messa
ges that the local switch...

 264 
 NOTE: 
•  The  reset mld-snooping group  command works only on an MLD snooping–enabled VLAN, but not in
a VLAN with MLD enabled on its VLAN interface.  
•   The  reset mld-snooping group  command cannot remove the static group entries of MLD snooping 
groups.  
 
For more information about the  display mac-address multicast command, see IP Multicast Command 
Reference.   
MLD snooping configuration examples 
IPv6 group policy and simulated joining configuration example 
Network requirements 
As...