Skip to main content
NetApp Knowledge Base

Cisco switch port permanently down

  1. Last updated
    Feb 17, 2025
  2. Save as PDF
Views:
41
Visibility:
Public
Votes:
0
Category:
metrocluster
Specialty:
MetroCluster
Last Updated:
2/17/2025, 8:47:28 AM

Applies to

  • Cisco cluster switch
  • MetroCluster IP

Issue

  • Switch port displays  transceiver is not present

Example:

Switch-A1# sh int Eth1/16 transceiver details
Ethernet1/16
    transceiver is not present

  • Disabing/Enabling the affected port and setting port speed to fixed value do not fix the issue
  • Rebooting connected device (e.g. storage node or switch) does not resolve the issue
  • After swapping SFP/cable with known-good components, the port remains down

Example:

show interface brief
--------------------------------------------------------------------------------
Ethernet        VLAN    TypeMode  Status  Reason                Speed     Port
Interface                                                                    Ch#
--------------------------------------------------------------------------------
Eth1/3          101    eth  trunk  down    Link not connected      100G(D) --
Eth1/4          101    eth  trunk  up      none                    100G(D) --

  • The device connected to the affected switch port (e.g. storage node or switch port) comes online when connected to a different switch port

 

Sign in to view the entire content of this KB article.

New to NetApp?

Learn more about our award-winning Support

NetApp provides no representations or warranties regarding the accuracy or reliability or serviceability of any information or recommendations provided in this publication or with respect to any results that may be obtained by the use of the information or observance of any recommendations provided herein. The information in this document is distributed AS IS and the use of this information or the implementation of any recommendations or techniques herein is a customer's responsibility and depends on the customer's ability to evaluate and integrate them into the customer's operational environment. This document and the information contained herein may be used solely in connection with the NetApp products discussed in this document.