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Cisco Bug: CSCtd25112 - Port goes to err-disabled due to channel-misconfig in VPLS/QinQ network

Last Modified

Feb 14, 2018

Products (1)

  • Cisco Catalyst 6000 Series Switches

Known Affected Releases


Description (partial)

Etherchannel that is not connected on the other side to single switch, but to several devices (due to STP Layer 2 Protocol Tunneling, being a part of VPLS) may get error-disabled with the etherchannel misconfig during topology changes / instabilities in the network.

* Etherchannels are used to connect the CE and PE devices
* There are more than 2 CE devices on the QinQ tunnel / VPLS
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