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Cisco Bug: CSCtd94383 - MDT tree failed to be initiated after ISSU.

Last Modified

May 10, 2018

Products (1)

  • Cisco Carrier Routing System

Known Affected Releases


Description (partial)

After ISSU triggered sucessfully, we found the mdt interface in mvpn failed to be created. Then all mvpn services broken after ISSU.

On the SRP, PIM does a backend_scan when it starts up but it doesn't learn any multicast configs in that call. Instead it seems to be receiving the SysDB callbacks much later. We set a Boolean in PIM when we return from the backend scan call. Since that Boolean gets set w/o learning any MVPN config, PIM ignores the MDT interface create notifications from IM for all vrfs. Vrf 2 works fine since it was reconfigured later.
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