4配置举例

4.1组网需求

SwitchA、SwitchB和SwitchC组成一个PIM-SM的组播网络，其中SwitchA连接组播源，SwitchB和SwitchC连接不同的接收者，接收者指定源加入。如图1所示：

设备

接口

IP地址

设备

接口

IP地址

SwitchA

Vlan-int100

10.10.1.1/24

SwitchC

Vlan-int102

10.102.1.1/24

Vlan-int12

10.12.1.1/24

Vlan-int23

10.23.1.3/24

Vlan-int13

10.13.1.1/24

Vlan-int13

10.13.1.3/24

SwitchB

Vlan-int101

10.101.1.1/24

Vlan-int12

10.12.1.2/24

Vlan-int23

10.23.1.2/24

图1PIMSSM特性典型配置组网图

4.2配置思路

lSwitchA、SwitchB和SwitchC上分别配置单播路由协议，使各设备和组播源、接收者之间路由可达；

lSwitchA、SwitchB和SwitchC上分别使能组播路由协议，并配置各接口的PIM-SM协议，连接接收者的接口配置IGMPv3协议；

l配置SSM组地址范围。

4.3使用版本

本举例是在S12500-CMW520-B1131版本上进行配置和验证的。

4.4配置步骤

&说明：

本文的组网环境可能与您的实际环境存在差异。为了保证配置效果，请确认设备上现有配置和以下配置不冲突。

4.4.1设备A的配置

1.配置步骤

(1)全局启动组播路由

system-view

[SwitchA]multicastrouting-enable

(2)配置各接口及接口地址，并使能PIMSM

#配置连接组播源的接口及接口地址，使能PIMSM

[SwitchA]vlan100

[SwitchA-vlan100]portGigabitEthernet3/0/1

[SwitchA-vlan100]interfacevlan100

[SwitchA-Vlan-interface100]ipaddress10.10.1.124

[SwitchA-Vlan-interface100]pimsm

#配置连接SwitchB的接口及接口地址，使能PIMSM

[SwitchA]vlan12

[SwitchA-vlan12]portGigabitEthernet3/0/2

[SwitchA-vlan12]interfacevlan12

[SwitchA-Vlan-interface12]ipaddress10.12.1.124

[SwitchA-Vlan-interface12]pimsm

#配置连接SwitchC的接口及接口地址，使能PIMSM

[SwitchA]vlan13

[SwitchA-vlan13]portGigabitEthernet3/0/3

[SwitchA-vlan13]interfacevlan13

[SwitchA-Vlan-interface13]ipaddress10.13.1.124

[SwitchA-Vlan-interface13]pimsm

(3)配置SSM组地址范围

[SwitchA]aclnumber2000

[SwitchA-acl-basic-2000]rulepermitsource225.0.0.00.255.255.255

[SwitchA-acl-basic-2000]pim

[SwitchA-pim]ssm-policy2000

(4)发布PIM接口单播路由

[SwitchA]ospf1

[SwitchA-ospf-1]import-routedirect

[SwitchA-ospf-1]area0.0.0.0

[SwitchA-ospf-1-area-0.0.0.0]network10.0.0.00.255.255.255

2.配置文件

displaycurrent-configuration

#

multicastrouting-enable

#

aclnumber2000

rulepermitsource225.0.0.00.255.255.255

#

interfaceVlan-interface12

ipaddress10.12.1.1255.255.255.0

pimsm

#

interfaceVlan-interface13

ipaddress10.13.1.1255.255.255.0

pimsm

#

interfaceVlan-interface100

ipaddress10.10.1.1255.255.255.0

pimsm

#

ospf1

import-routedirect

area0.0.0.0

network10.0.0.00.255.255.255

#

pim

ssm-policy2000

#

4.4.2设备B的配置

1.配置步骤

(1)全局启动组播路由

system-view

[SwtichB]multicastrouting-enable

(2)配置各接口及接口地址，并使能PIMSM

#配置连接SwtichA的接口及接口地址，使能PIMSM

[SwitchB]vlan12

[SwitchB-vlan12]portGigabitEthernet3/0/2

[SwitchB-vlan12]interfacevlan12

[SwitchB-Vlan-interface12]ipaddress10.12.1.224

[SwitchB-Vlan-interface12]pimsm

#配置连接SwtichC的接口及接口地址，使能PIMSM

[SwitchB]vlan23

[SwitchB-vlan23]portGigabitEthernet3/0/3

[SwitchB-vlan23]interfacevlan23

[SwitchB-Vlan-interface23]ipaddress10.23.1.224

[SwitchB-Vlan-interface23]pimsm

#配置连接HostA的接口及接口地址，使能PIMSM和IGMPv3

[SwitchB]vlan101

[SwitchB-vlan101]portGigabitEthernet3/0/1

[SwitchB-vlan101]interfacevlan101

[SwitchB-Vlan-interface101]ipaddress10.101.1.124

[SwitchB-Vlan-interface101]pimsm

[SwitchB-Vlan-interface101]igmpenable

[SwitchB-Vlan-interface101]igmpversion3

(3)配置SSM组地址范围

[SwitchB]aclnumber2000

[SwitchB-acl-basic-2000]rulepermitsource225.0.0.00.255.255.255

[SwitchB-acl-basic-2000]pim

[SwitchB-pim]ssm-policy2000

(4)发布PIM接口单播路由

[SwitchB]ospf1

[SwitchB-ospf-1]import-routedirect

[SwitchB-ospf-1]area0.0.0.0

[SwitchB-ospf-1-area-0.0.0.0]network10.0.0.00.255.255.255

2.配置文件

displaycurrent-configuration

#

multicastrouting-enable

#

aclnumber2000

rulepermitsource225.0.0.00.255.255.255

#

interfaceVlan-interface12

ipaddress10.12.1.2255.255.255.0

pimsm

#

interfaceVlan-interface23

ipaddress10.23.1.2255.255.255.0

pimsm

#

interfaceVlan-interface101

ipaddress10.101.1.1255.255.255.0

igmpenable

igmpversion3

pimsm

#

ospf1

import-routedirect

area0.0.0.0

network10.0.0.00.255.255.255

#

pim

ssm-policy2000

#

4.4.3设备C的配置

1.配置步骤

(1)全局启动组播路由

system-view

[SwtichC]multicastrouting-enable

(2)配置各接口及接口地址，并使能PIMSM

#配置连接SwtichA的接口及接口地址，使能PIMSM

[SwitchC]vlan13

[SwitchC-vlan13]portGigabitEthernet3/0/3

[SwitchC-vlan13]interfacevlan13

[SwitchC-Vlan-interface13]ipaddress10.13.1.324

[SwitchC-Vlan-interface13]pimsm

#配置连接SwtichB的接口及接口地址，使能PIMSM

[SwitchC]vlan23

[SwitchC-vlan23]portGigabitEthernet3/0/2

[SwitchC-vlan23]interfacevlan23

[SwitchC-Vlan-interface23]ipaddress10.23.1.324

[SwitchC-Vlan-interface23]pimsm

#配置连接HostB的接口及接口地址，使能PIMSM和IGMPv3协议

[SwitchC]vlan102

[SwitchC-vlan102]portGigabitEthernet3/0/1

[SwitchC-vlan102]interfacevlan102

[SwitchC-Vlan-interface102]ipaddress10.102.1.124

[SwitchC-Vlan-interface102]pimsm

[SwitchC-Vlan-interface102]igmpenable

[SwitchC-Vlan-interface102]igmpversion3

(3)配置SSM组地址范围

[SwitchC]aclnumber2000

[SwitchC-acl-basic-2000]rulepermitsource225.0.0.00.255.255.255

[SwitchC-acl-basic-2000]pim

[SwitchC-pim]ssm-policy2000

(4)发布PIM接口单播路由

[SwitchC]ospf1

[SwitchC-ospf-1]import-routedirect

[SwitchC-ospf-1]area0.0.0.0

[SwitchC-ospf-1-area-0.0.0.0]network10.0.0.00.255.255.255

2.配置文件

displaycurrent-configuration

#

multicastrouting-enable

#

aclnumber2000

rulepermitsource225.0.0.00.255.255.255

#

interfaceVlan-interface13

ipaddress10.13.1.3255.255.255.0

pimsm

#

interfaceVlan-interface23

ipaddress10.23.1.3255.255.255.0

pimsm

#

interfaceVlan-interface102

ipaddress10.102.1.1255.255.255.0

igmpenable

igmpversion3

pimsm

#

ospf1

import-routedirect

area0.0.0.0

network10.0.0.00.255.255.255

#

pim

ssm-policy2000

#

4.5验证结果

按照如上配置，SwitchA、SwitchB、SwitchC两两之间建立PIM邻居关系，HostA进行源为10.10.1.2组为225.1.1.1的IGMPv3加入后能生成SG的PIMRouting表项。

可以通过以下方式验证上述配置：

(1)SwitchB上与其他设备建立PIM邻居关系

[SwtichB]displaypimneighbor

VPN-Instance:publicnet

TotalNumberofNeighbors=2

NeighborInterfaceUptimeExpiresDr-Priority

10.12.1.1Vlan1200:00:0500:01:401

10.13.1.3Vlan2300:00:2000:01:411

(2)假如HostA需要接收组播源组（10.10.1.2,225.1.1.1）的信息，通过使用displaypimrouting-table命令可以查看到PIM路由表信息。

#查看SwitchB上的PIM路由表信息

[SwitchB]displaypimrouting-table

VPN-Instance:publicnet

Total1(S,G)entry

(10.10.1.2,225.1.1.1)

Protocol:pim-ssm,Flag:

UpTime:00:14:24

Upstreaminterface:Vlan-interface12

Upstreamneighbor:10.12.1.1

RPFprimeneighbor:10.12.1.1

Downstreaminterface(s)information:

Totalnumberofdownstreams:1

1:Vlan-interface101

Protocol:igmp,UpTime:00:14:24,Expires:-

#查看SwitchA上的PIM路由表信息

[SwitchA]displaypimrouting-table

VPN-Instance:publicnet

Total1(S,G)entry

(10.10.1.2,225.1.1.1)

Protocol:pim-ssm,Flag:LOC

UpTime:00:00:22

Upstreaminterface:Vlan-interface100

Upstreamneighbor:NULL

RPFprimeneighbor:NULL

Downstreaminterface(s)information:

Totalnumberofdownstreams:1

1:Vlan-interface12

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