105 组播表项显示异常

不涉及

两台10508（version 7.1.070, Release 7595），同一个组播源，查看主备设备pim routing-table，主设备有SSM表项，备设备没有

查看配置，就是ssm-policy配置的原因，主设备上表项，组播组地址范围在ssm-policy定义允许的组播组的地址范围，匹配通过，则组播运行模式为PIM-SSM。备设备不在，为PIM-SM。

如果匹配通过，则组播运行模式为PIM-SSM，否则为PIM-SM。

(10.20.13.1, 232.20.13.1)

     Protocol: pim-ssm, Flag: NONBR 2MVPN

     UpTime: 59w:6d

     Upstream interface: Vlan-interface141

         Upstream neighbor: 172.20.13.2

         RPF prime neighbor: NULL

     Downstream interface information:

     Total number of downstream interfaces: 5

         1: Vlan-interface127

             Protocol: igmp, UpTime: 1w:3d, Expires: -

         2: Vlan-interface140

             Protocol: igmp, UpTime: 53w:4d, Expires: -

         3: Vlan-interface161

             Protocol: igmp, UpTime: 19w:5d, Expires: -

         4: Vlan-interface165

             Protocol: igmp, UpTime: 05:34:20, Expires: -

         5: Vlan-interface167

             Protocol: igmp, UpTime: 3w:3d, Expires: -

主：

#

pim

c-bsr 172.31.0.3

static-rp 172.31.0.3 2000

ssm-policy 2000

#

#

acl basic 2000

description be used for PIM

rule 0 permit source 232.20.0.0 0.0.255.255   16位： 232.20.0.1 -----232.20.255.254

rule 1 permit source 232.24.0.0 0.0.255.255

rule 5 permit source 232.23.0.0 0.0.255.255

#

备：

在备设备dis pim rou这个文件并未找到网段内地址。所以没有匹配，为sm

pim

c-bsr 172.31.0.4

static-rp 172.31.0.4

ssm-policy 2000

#

#

acl basic 2000

rule 20 permit source 232.0.0.0 0.0.0.255    24位： 232.0.0.1 ------232.0.0.254 

#

理解问题，非故障