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MSR路由器PIM DM组播功能的配置

2006-11-12 发表
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MSR路由器

PIM DM组播功能的配置

 

关键词:MSR;组播;PIM DM

一.    组网需求:

PC1作为组播源发送组播数据,PC2PC3作为组播组成员能够收到组播数据。组播路由协议采用DM模式。

二.    组网图:

三.    配置步骤:

实验使用设备及版本:MSR20-20Version 5.20, Beta 1106

RTA配置

#                

 sysname RTA  

#           

 multicast routing-enable     //启动IP组播路由

#               

interface Ethernet0/0                          

 port link-mode route             

 ip address 7.7.7.1 255.255.255.0       

 pim dm                  //启动PIM-DM

#                         

interface Serial1/0                                     

 link-protocol ppp                                   

 ip address 1.1.1.1 255.255.255.0                 

 pim dm  

#                                 

ospf 1                         

 area 0.0.0.0                 

  network 1.1.1.0 0.0.0.255                

  network 7.7.7.0 0.0.0.255             

RTB配置

#                                    

 sysname RTB

#                                      

 multicast routing-enable            

#           

interface Ethernet0/0                         

 port link-mode route                             

 ip address 2.2.2.1 255.255.255.0                    

 pim dm                                        

#                                    

interface Ethernet0/1                           

 port link-mode route                                

 ip address 8.8.8.1 255.255.255.0                

 igmp enable              //接口上使能IGMP

#                                  

interface Serial1/0                                  

 link-protocol ppp                          

 ip address 1.1.1.2 255.255.255.0                     

 pim dm           

#                                             

ospf 1                                    

 area 0.0.0.0                                       

  network 1.1.1.0 0.0.0.255          

  network 2.2.2.0 0.0.0.255            

  network 8.8.8.0 0.0.0.255

RTC配置

#                                      

 sysname RTC             

#                                       

 multicast routing-enable       

#                               

interface Ethernet0/0                              

 port link-mode route               

 ip address 2.2.2.2 255.255.255.0          

 pim dm                         

#                            

interface Ethernet0/1           

 port link-mode route                   

 ip address 9.9.9.1 255.255.255.0               

 igmp enable

#                                 

ospf 1                           

 area 0.0.0.0                        

  network 2.2.2.0 0.0.0.255             

  network 9.9.9.0 0.0.0.255   

四.    配置关键点:

1、全局启动IP组播路由。

2、各接口启动PIM-DM

3、与成员相连的接口上使能IGMP

4、保证组播源和组播组成员之间路由可达。

五.    实验分析

PC2PC3正确加入组播组以后,检查路由器中的多播路由表项(display pim routing-table),多播路由表中正确显示上下游关系:

[RTB]dis pim routing-table                                                     

 Vpn-instance: public net                                                      

 Total 2 (*, G) entries; 1 (S, G) entry                                        

                                                                               

 (*, 224.1.1.1)                                                                 

     Protocol: pim-dm, Flag: WC                                                

     UpTime: 00:08:04                                                          

     Upstream interface: NULL                                                   

         Upstream neighbor: NULL                                               

         RPF prime neighbor: NULL                                              

     Downstream interface(s) information:                                       

     Total number of downstreams: 1                                            

         1: Ethernet0/2                                                        

             Protocol: igmp, UpTime: 00:08:04, Expires: never                   

                                                                               

 (7.7.7.7, 224.1.1.1)                                                          

     Protocol: pim-dm, Flag: ACT                                               

     UpTime: 00:01:10                                                          

     Upstream interface: Ethernet0/1                                           

         Upstream neighbor: 1.1.1.1                                            

         RPF prime neighbor: 1.1.1.1                                           

     Downstream interface(s) information:                                      

     Total number of downstreams: 2                                            

         1: Ethernet0/2                                                         

             Protocol: pim-dm, UpTime: 00:01:10, Expires:  -                   

         2: Ethernet0/0                                                        

             Protocol: pim-dm, UpTime: 00:01:10, Expires:  -                   

                                                                               

 (*, 239.255.255.250)                                                          

     Protocol: pim-dm, Flag: WC                                                 

     UpTime: 00:13:22                                                          

     Upstream interface: NULL                                                  

         Upstream neighbor: NULL                                                

         RPF prime neighbor: NULL                                              

     Downstream interface(s) information:                                      

     Total number of downstreams: 1                                            

         1: Ethernet0/2                                                        

             Protocol: igmp, UpTime: 00:13:22, Expires: never                  

 

[RTC]dis pim routing-table                                                     

 Vpn-instance: public net                                                      

 Total 2 (*, G) entries; 1 (S, G) entry                                        

                                                                               

 (*, 224.1.1.1)                                                                 

     Protocol: pim-dm, Flag: WC                                                

     UpTime: 00:08:03                                                          

     Upstream interface: NULL                                                   

         Upstream neighbor: NULL                                               

         RPF prime neighbor: NULL                                              

     Downstream interface(s) information:                                       

     Total number of downstreams: 1                                            

         1: Ethernet0/1                                                        

             Protocol: igmp, UpTime: 00:08:03, Expires: never                  

                                                                               

 (7.7.7.7, 224.1.1.1)                                                          

     Protocol: pim-dm, Flag: ACT                                               

     UpTime: 00:01:50                                                          

     Upstream interface: Ethernet0/0                                           

         Upstream neighbor: 2.2.2.1                                             

         RPF prime neighbor: 2.2.2.1                                           

     Downstream interface(s) information:                                      

     Total number of downstreams: 1                                             

         1: Ethernet0/1                                                        

             Protocol: pim-dm, UpTime: 00:01:50, Expires:  -                   

                                                                                

 (*, 239.255.255.250)                                                          

     Protocol: pim-dm, Flag: WC                                                

     UpTime: 00:14:12                                                           

     Upstream interface: NULL                                                  

         Upstream neighbor: NULL                                               

         RPF prime neighbor: NULL                                              

     Downstream interface(s) information:                                      

     Total number of downstreams: 1                                            

         1: Ethernet0/1                                                        

             Protocol: igmp, UpTime: 00:14:12, Expires: never                  

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