配置MLD Snooping查询器示例
组网需求
如图2-8所示,在一个没有三层设备纯二层网络环境中,组播源Source1和Source2分别向组播组FF16::1和FF16::2发送组播数据,HostA和HostC希望接收组播组FF16::1的数据,HostB和HostD希望接收组播组FF16::2的数据。
配置思路
在网络中各Switch上使能MLD Snooping功能,并配置MLD Snooping查询器,可以实现此需求。同时为防止设备在没有二层组播转发表项时将组播数据在VLAN内广播,在所有Switch上都使能丢弃未知组播数据报文功能。
- 根据图2-8在所有Switch上创建VLAN并将接口加入VLAN。
- 在所有Switch上使能全局和VLAN的MLD Snooping功能。
- 选择距离组播源较近的SwitchA为MLD Snooping查询器。
- 在所有Switch上使能丢弃未知组播数据报文功能。
操作步骤
- 创建VLAN,配置接口加入VLAN。
# 配置SwitchA。SwitchB、SwitchC和SwitchD的配置与SwitchA类似,配置过程略。
<HUAWEI> system-view [HUAWEI] sysname SwitchA [SwitchA] vlan 10 [SwitchA-vlan10] quit [SwitchA] interface gigabitethernet 0/0/1 [SwitchA-GigabitEthernet0/0/1] port link-type hybrid [SwitchA-GigabitEthernet0/0/1] port hybrid pvid vlan 10 [SwitchA-GigabitEthernet0/0/1] port hybrid untagged vlan 10 [SwitchA-GigabitEthernet0/0/1] quit [SwitchA] interface gigabitethernet 0/0/2 [SwitchA-GigabitEthernet0/0/2] port link-type hybrid [SwitchA-GigabitEthernet0/0/2] port hybrid pvid vlan 10 [SwitchA-GigabitEthernet0/0/2] port hybrid untagged vlan 10 [SwitchA-GigabitEthernet0/0/2] quit [SwitchA] interface gigabitethernet 0/0/3 [SwitchA-GigabitEthernet0/0/3] port link-type hybrid [SwitchA-GigabitEthernet0/0/3] port hybrid pvid vlan 10 [SwitchA-GigabitEthernet0/0/3] port hybrid untagged vlan 10 [SwitchA-GigabitEthernet0/0/3] quit
- 使能MLD Snooping功能。
# 配置SwitchA。SwitchB、SwitchC和SwitchD的配置与SwitchA类似,配置过程略。
[SwitchA] mld-snooping enable [SwitchA] vlan 10 [SwitchA-vlan10] mld-snooping enable [SwitchA-vlan10] quit
- 配置MLD Snooping查询器。
# 配置SwitchA为查询器。
[SwitchA] vlan 10 [SwitchA-vlan10] mld-snooping querier enable [SwitchA-vlan10] quit
- 配置未知组播数据报文丢弃。
# 配置SwitchA。SwitchB、SwitchC和SwitchD的配置与SwitchA类似,配置过程略。
[SwitchA] vlan 10 [SwitchA-vlan10] multicast drop-unknown [SwitchA-vlan10] quit
- 验证配置结果。
# 当MLD Snooping查询器开始工作之后,除查询器以外的所有设备都能收到MLD普遍组查询报文。可以通过命令查看MLD报文的统计信息,例如查看SwitchB上收到的MLD报文统计信息。
[SwitchB] display mld-snooping statistics vlan 10 MLD Snooping Packets Counter Statistics for VLAN 10 Recv V1 Report 316 Recv V2 Report 0 Recv V1 Query 305 Recv V2 Query 0 Recv Done 2 Recv Pim Hello 85 Send Query(S=0) 1 Send Query(S!=0)0 Send General Query 0 Send Group-Specific Query 0 Send Group-Source-Specific Query 0
配置文件
SwitchA的配置文件
# sysname SwitchA # vlan batch 10 # mld-snooping enable # vlan 10 multicast drop-unknown mld-snooping enable mld-snooping querier enable # interface GigabitEthernet0/0/1 port link-type hybrid port hybrid pvid vlan 10 port hybrid untagged vlan 10 # interface GigabitEthernet0/0/2 port link-type hybrid port hybrid pvid vlan 10 port hybrid untagged vlan 10 # interface GigabitEthernet0/0/3 port link-type hybrid port hybrid pvid vlan 10 port hybrid untagged vlan 10 # return
SwitchB的配置文件
# sysname SwitchB # vlan batch 10 # mld-snooping enable # vlan 10 multicast drop-unknown mld-snooping enable # interface GigabitEthernet0/0/1 port link-type hybrid port hybrid pvid vlan 10 port hybrid untagged vlan 10 # interface GigabitEthernet0/0/2 port link-type hybrid port hybrid pvid vlan 10 port hybrid untagged vlan 10 # interface GigabitEthernet0/0/3 port link-type hybrid port hybrid pvid vlan 10 port hybrid untagged vlan 10 # interface GigabitEthernet0/0/4 port link-type hybrid port hybrid pvid vlan 10 port hybrid untagged vlan 10 # return
SwitchC的配置文件
# sysname SwitchC # vlan batch 10 # mld-snooping enable # vlan 10 multicast drop-unknown mld-snooping enable # interface GigabitEthernet0/0/1 port link-type hybrid port hybrid pvid vlan 10 port hybrid untagged vlan 10 # interface GigabitEthernet0/0/2 port link-type hybrid port hybrid pvid vlan 10 port hybrid untagged vlan 10 # interface GigabitEthernet0/0/3 port link-type hybrid port hybrid pvid vlan 10 port hybrid untagged vlan 10 # return
SwitchD的配置文件
# sysname SwitchD # vlan batch 10 # mld-snooping enable # vlan 10 multicast drop-unknown mld-snooping enable # interface GigabitEthernet0/0/1 port link-type hybrid port hybrid pvid vlan 10 port hybrid untagged vlan 10 # interface GigabitEthernet0/0/2 port link-type hybrid port hybrid pvid vlan 10 port hybrid untagged vlan 10 # return