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Cisco Bug: CSCuw55005 - VxLAN:On standalone TOR, after feature VPC NVE loopback goes down.

Last Modified

Feb 19, 2019

Products (1)

  • Cisco MDS 9000 NX-OS and SAN-OS Software

Known Affected Releases

7.0(3)I2(1.24) 7.0(3)I2(1.48) 7.0(3)I2(1.71) 7.0(8)II(0.1)

Description (partial)

Loopback interface stuck in admin down

loopback0 is down (Administratively down)
admin state is up,

"feature vpc" is enabled

Related Community Discussions

VXLAN 環境で NVE source の Loopback interface が Admin down となる実装について
    問題の概要 VXLAN 環境で利用している Nexus 9000/3000 シリーズで NVE interface の source に指定されている Loopback interface が Administrative down になる場合があります。 この動作はマニュアルに記載されている以下のように、 vPC 環境での peer-link 障害時に Secondary の通信を意図的に停止するための実装です。 | VPC Considerations for VXLAN BGP EVPN Deployment When peer-link is shut, the loopback interface used by NVE on the VPC secondary is brought down and the status is Admin Shut. This is done so that the route to the loopback is withdrawn on the upstream and that the upstream can divert all ...
Latest activity: Jun 14, 2018
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