interface GigabitEthernet1/0/0
port hybrid pvid vlan 300
port hybrid untagged vlan 300
#
interface GigabitEthernet2/0/0
port hybrid pvid vlan 301
port hybrid untagged vlan 301
#
return
10.9.2 Example for Configuring MLD Limit
Networking Requirements
When a large number of users watch multiple programs simultaneously, great bandwidth of
devices is consumed, which degrades the performance of the devices and lowers the stability of
receiving multicast data.
The existing multicast technologies control multicast networks by limiting the number of
multicast forwarding entries or the number of outgoing interfaces of an entry, which cannot meet
the requirements of operators for real-time video services on IPTV networks and flexible
management of network resources.
Configuring MLD limit can enable operators to properly plan network resources and flexibly
control the number of multicast groups that hosts can join. In the network shown in Figure
10-2, multicast services are deployed. The global MLD limit, instance-based MLD limit, and
interface-based MLD limit are configured on Switch A, Switch B, and Switch C connected to
hosts to limit the number of multicast groups that the hosts can join. When the number of
multicast groups that hosts can join reaches the limit, the devices are not allowed to create new
MLD entries. This ensures that the users that join related multicast groups more clearly and
stably watch related programs.
Figure 10-2 Networking diagram of configuring MLD Limit
SwitchA
SwitchB
SwitchC
GE2/0/0
GE1/0/0
PIM network
GE2/0/0
GE2/0/0
GE1/0/0
GE1/0/0
Ethernet
HostA
Receiver
HostB
N1
Leaf network
HostC
Receiver
HostD
N2
Ethernet
Switch
Physical interface VLANIF interface IP address
SwitchA GE1/0/0 VLANIF100 3000::12/64
GE2/0/0 VLANIF101 2001::1/64
SwitchB GE1/0/0 VLANIF200 3001::10/64
Quidway S7700 Smart Routing Switch
Configuration Guide - Multicast 10 MLD Configuration
Issue 01 (2011-07-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
380
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