Preview Tool

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

Last Modified

Apr 12, 2017

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
View all products in Bug Search Tool Login Required

Known Affected Releases


Description (partial)

When changing the native vlan on a trunk port the peer device does not see the CDP neighbor anymore when configured as L3 port. 

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 connecting to a Layer 3 port. The issue can be seen when connecting a Nexus device to another non-Nexus IOS device.
Bug details contain sensitive information and therefore require a account to be viewed.

Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
Bug information is viewable for customers and partners who have a service contract. Registered users can view up to 200 bugs per month without a service contract.