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Cisco Bug: CSCtd15124 - mVPN: MDT data switchover/switchback 10 to 15 percent rate error

Last Modified

Aug 26, 2017

Products (1)

  • Cisco ASR 9000 Series Aggregation Services Routers

Known Affected Releases


Description (partial)


A multicast traffic stream may be switched over from the default Multicast
Distribution Tree (MDT) to the Data MDT when the actual data rate of the
stream is 10 to 15 percent less than the configured switchover threshold.


1) An MDT data group has been configured for a multicast Virtual Private 
Network (mVPN) with the following command:

mdt data <I>mdt-group-address/mask</I> [threshold <I>threshold-value</I>][<I>acl-name</I>] 

2) A multicast stream which matches the <I>mdt-group-address/mask</I> specified
is being forwarded at a rate 10 to 15 percent below the <I>threshold</I> value
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
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  • Known Fixed Releases
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