Configuration prerequisites, Configuring an ipv6 multicast data filter – H3C Technologies H3C S12500 Series Switches User Manual
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Configuration prerequisites
Before you configure IPv6 PIM common features, complete the following tasks:
•
Enable IPv6 forwarding and configure an IPv6 unicast routing protocol so that all devices in the
domain are interoperable at the network layer.
•
Configure IPv6 PIM-DM (or IPv6 PIM-SM or IPv6 PIM-SSM).
•
Determine the IPv6 ACL rule for filtering IPv6 multicast data.
•
Determine the IPv6 ACL rule defining a legal source address range for hello messages.
•
Determine the priority for DR election (global value/interface level value).
•
Determine the IPv6 PIM neighbor timeout time (global value/interface value).
•
Determine the prune message delay (global value/interface level value).
•
Determine the prune override interval (global value/interface level value).
•
Determine the prune delay.
•
Determine the hello interval (global value/interface level value).
•
Determine the maximum delay between hello messages (interface level value).
•
Determine the assert timeout time (global value/interface value).
•
Determine the join/prune interval (global value/interface level value).
•
Determine the join/prune timeout (global value/interface value).
•
Determine the IPv6 multicast source lifetime.
•
Determine the maximum size of join/prune messages.
•
Determine the maximum number of (S, G) entries in a join/prune message.
Configuring an IPv6 multicast data filter
No matter in an IPv6 PIM-DM domain or an IPv6 PIM-SM domain, routers can check passing-by IPv6
multicast data based on the configured filtering rules and determine whether to continue forwarding the
IPv6 multicast data. In other words, IPv6 PIM routers can act as IPv6 multicast data filters. These filters can
help implement traffic control on one hand, and control the information available to downstream
receivers to enhance data security on the other hand.
To configure an IPv6 multicast data filter:
Step
Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter IPv6 PIM view.
pim ipv6
N/A
3.
Configure an IPv6 multicast
group filter.
source-policy acl6-number
No IPv6 multicast data filter by
default.
NOTE:
•
Generally, a smaller distance from the filter to the IPv6 multicast source results in a more remarkable
filtering effect.
•
This filter works not only on independent IPv6 multicast data but also on IPv6 multicast data
encapsulated in register messages.