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多播静态路由引起的循环问题的解决
作者:佚名  文章来源:不详  点击数1403  更新时间:2007-5-18 3:18:49  文章录入:啊祖  责任编辑:啊祖

>  一、问题

  在r3和r1之间使用了GRE通道,所有的路由器接口配置为sparse-mode,R4 ip为(1.1.4.4)但R1无法ping通多播源。

  二、示意图如下

  multicast source -----R5------R3-------R223----R1--e0

  ............................................|

  ............................................|

  ............................................R4

  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

  三、原配置如下

  R1#mtrace 1.1.15.1 150.100.2.1 239.255.8.8

  Type escape sequence to abort.

  Mtrace from 1.1.15.1 to 150.100.2.1 via group 239.255.8.8

  From source (?) to destination (?)

  Querying full reverse path...

  0 150.100.2.1

  -1 1.1.12.5 PIM [default]

  -2 1.1.12.3 PIM [default]

  -3 1.1.16.4 PIM Reached RP/Core [1.1.15.0/24]

  -4 1.1.16.3 PIM [default]

  -5 1.1.16.4 PIM Reached RP/Core [1.1.15.0/24]

  -6 1.1.16.3 PIM [default]

  -7 1.1.16.4 PIM Reached RP/Core [1.1.15.0/24]

  -8 1.1.16.3 PIM [default]

  -9 1.1.16.4 PIM Reached RP/Core [1.1.15.0/24]

  -10 1.1.16.3 PIM [default]

  -11 1.1.16.4 PIM Reached RP/Core [1.1.15.0/24]

  -12 1.1.16.3 PIM [default]

  -13 1.1.16.4 PIM Reached RP/Core [1.1.15.0/24]

  -14 1.1.16.3 PIM [default]

  -15 1.1.16.4 PIM Reached RP/Core [1.1.15.0/24]

  -16 1.1.16.3 PIM [default]

  -17 1.1.16.4 PIM Reached RP/Core [1.1.15.0/24]

  -18 1.1.16.3 PIM [default]

  -19 1.1.16.4 PIM Reached RP/Core [1.1.15.0/24]

  -20 1.1.16.3 PIM [default]

  -21 1.1.16.4 PIM Reached RP/Core [1.1.15.0/24]

  -22 1.1.16.3 PIM [default]

  -23 1.1.16.4 PIM Reached RP/Core [1.1.15.0/24]

  -24 1.1.16.3 PIM [default]

  -25 1.1.16.4 PIM Reached RP/Core [1.1.15.0/24]

  -26 1.1.16.3 PIM [default]

  -27 1.1.16.4 PIM Reached RP/Core [1.1.15.0/24]

  -28 1.1.16.3 PIM [default]

  -29 1.1.16.4 PIM Reached RP/Core [1.1.15.0/24]

  -30 1.1.16.3 PIM [default]

  -31 1.1.16.4 PIM Reached RP/Core [1.1.15.0/24]

  -32 1.1.16.3 PIM [default]

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