Cisco: Obvious Cables May well perhaps Push the Reset Button and Reason an Surprising Reset
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Put up Date
Preliminary Free up10.0
Migration to easy discipline note system10.1
Mounted Damaged Thunder LinksProducts Affected
Affected Product ID
There were no defects filed with this discipline note on the time of publication.Subject Description
Obvious forms of snagless Ethernet cables have faith protecting boots that extend too a ways forward and above the plastic latching tab.
When this fabricate of cable is installed in Port 1 of any 48-port model of the Cisco Catalyst C3650 or C3850 Series switches, the boot may possibly well perhaps well press and aid the Mode button, which invokes Specific Setup and reboots the system. (Reference Figures 1 by plan of 3 for illustrations of the location.)
Point to: This fabricate of boot-cable can in part imprecise port LEDs, air vents, and USB ports.
Resolve 1. Problematic Cable forward of Whole Insertion
Resolve 2. Problematic Cable Fully Inserted
Resolve 3. Problematic Cable Fully Inserted (aspect detect)
Snagless Ethernet cables had been developed decades within the past in picture to protect the plastic latching tab from becoming snagged, zigzag, or damaged. There are numerous ways to enact this aim, but essentially the most typical is to cowl the tab beneath a plastic screen or boot.
Quite loads of forms of snagless cables come in. On the choice hand, most are designed in this form of potential that the protecting software is much less prominent and/or held extra tightly to the tab, which prevents the aforementioned drawbacks.
When Specific Setup is inadvertently invoked by the protecting boot of the cable, these messages are considered within the syslog:
%SYS-7-NV_BLOCK_INIT: Initialized the geometry of nvram
%EXPRESS_SETUP-6-CONFIG_IS_RESET: The configuration is reset and the system will now reboot
%SYS-5-RELOAD: Reload requested by NGWC led course of. Reload Reason: Reload picture.
%STACKMGR-1-RELOAD_REQUEST: 1 stack-mgr: Obtained reload query for all switches, reason Reload picture
%STACKMGR-1-RELOAD: 1 stack-mgr: Reloading as a consequence of reason Reload picture.
After this happens, the software resets. The startup configuration is erased once the software enters Specific Setup.
There are three alternatives utilized in picture to take care of this location:
Employ a snagless cable with a much less-pronounced boot in Port 1.
Dapper the boot on the cable that’s installed in Port 1.
Disable Specific Setup with this picture while in config mode:
3850(config)# no setup affirm
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