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Cisco Bug: CSCur70425 - N7k/N9K: CDP frames tagged with Vlan 1, default native vlan changed on trunk

Last Modified

Sep 19, 2019

Products (11)

  • Cisco Nexus 9000 Series Switches
  • Cisco Nexus 9516 Switch
  • Cisco Nexus 9396TX Switch
  • Cisco Nexus 9396PX Switch
  • Cisco Nexus 9504 Switch
  • Cisco Nexus 3164Q Switch
  • Cisco Nexus 9332PQ Switch
  • Cisco Nexus 9508 Switch
  • Cisco Nexus 93128TX Switch
  • Cisco Nexus 9372TX Switch
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Known Affected Releases


Description (partial)

When changing the native vlan on a trunk port the peer device does not see the CDP neighbor anymore .

The issue can also be seen when configured in port channel between two devices. Issue is also seen on Nexus 7000 switch in 6.2.x based release.

Native vlan changed on a trunk port . The issue can be seen when connecting a Nexus device to another non-Nexus IOS device.
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