number of downstream interfaces determines the maximum scale of an MDT and the service
range. You can define the number of downstream interfaces of a single forwarding entry.
Limiting the number of downstream interfaces according to the actual networking and
service performance can reduce the processing pressure of a switch and control the service
range.
Pre-configuration Tasks
Before configuring control parameters of the IPv6 multicast routing policy, complete the
following tasks:
l Configuring a unicast routing protocol
l Configuring basic multicast functions
Data Preparation
To configure control parameters of the IPv6 multicast routing policy, complete the following
tasks.
No. Data
1 Source address, group address, and mask or mask length
2 Matching policy, sequence, and preference of multicast routes
3 The maximum number of forwarding entries in the multicast forwarding table
4 The maximum number of downstream interfaces of each forwarding entry in the
multicast forwarding table
14.5.2 Configuring the Maximum Number of Entries in the IPv6
Multicast Forwarding Table
Too many multicast forwarding entries may use up the memory of a multicast device. You can
set the maximum number of entries in a multicast forwarding table of a multicast device and
adjust the number of entries according to the actual networking and service performance to
prevent the faults resulted from excessive entries.
Context
By default, the maximum value permitted by the system is used.
Do as follows on the multicast switch:
Procedure
Step 1 Run:
system-view
The system view is displayed.
Step 2 Run:
multicast ipv6 forwarding-table route-limit limit-value
Quidway S7700 Smart Routing Switch
Configuration Guide - Multicast 14 IPv6 Multicast Routing Management
Issue 01 (2011-07-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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