Cisco Bug: CSCta97117 - 3.8.2/3.9 pim & mul-routing MVPN config changes not backward compatible
Jan 05, 2017
- Cisco Carrier Routing System
Known Affected Releases
3.8.2.BASE 3.9.0.BASE 3.9.2.BASE 4.1.1.ROUT
CSCta97117 Basic Description: 3.8.2/3.9 pim and multicast-routing MVPN config changes not backward compatible. Symptom: Multicast configuration failures on downgrade from 3.8.2/3.9. Conditions: The multicast configuration structure has changed in 3.8.2/3.9. In previous releases, each VRF under multicast-routing and router pim configurations used to be in a separate submode but after the change, the configuration is in a hierarchical format, similar to other routing protocols. This was also required for the multicast XML support in 3.8.2/3.9. Due to this change, when downgrading from 3.8.2/3.9 to earlier releases, the multicast-routing and router pim MVPN (VRF) configurations will be rejected. The failure will be shown in the output of "show configuration failed startup".
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