Usb Type A And Type C Ports; Uplink Ports - Cisco Catalyst 9300 Series Hardware Installation Manual
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Product Overview
You can use the command-line interface (CLI) to configure an inactivity timeout which reactivates the RJ-45
console if the USB console has been activated and no input activity has occurred on the USB console for a
specified time.
After the USB console deactivates due to inactivity, you cannot use the CLI to reactivate it. Disconnect and
reconnect the USB cable to reactivate the USB console. For information on using the CLI to configure the
USB console interface, see the Software Configuration Guide.
USB Type A and Type C Ports
The USB Type A and Type C ports provide access to external USB flash devices (also known as thumb drives
or USB keys).
The USB Type A port supports Cisco USB flash drives with capacities from 128 MB to 8 GB (USB devices
with port densities of 128 MB, 256 MB, 1 GB, 4 GB, and 8 GB are supported). Whereas, USB Type C port
provides support for flash drives with capacities from 128 MB to 256 GB.
In a switch stack, you can upgrade all the switches in the stack with a USB key inserted in any switch member
within the stack. Cisco IOS software enables the flash drive with standard file system access such as read,
write, erase, and copy, as well as the ability to format the flash device with a FAT file system.
These ports enable you to automatically upgrade the internal flash with the USB drive's configuration and
image for emergency switch recovery using USB auto-upgrade. This feature checks the internal flash for a
bootable image and configuration and if either image or the configuration is not available, then the USB drive
is checked for boot images and configuration. If the boot image and configuration are available, these are
copied to the flash for a reboot.
Uplink Ports
The Cisco Catalyst 9300 Series switches support both fixed and modular uplinks. The C9300 and C9300X
switch models support optional hot-swappable network modules that provide uplink ports to connect to other
devices. The C9300L switches provide fixed uplink ports that support 10 GE and 1 GE SFP/SFP+ modules.
The switch generates logs when you insert or remove a network module with SFP/SFP+/SFP28 ports.
The following table lists the optional Cisco Catalyst 9300 uplink network modules. In addition, Cisco Catalyst
9300 Series switches also support 3850 uplink network modules.
Table 5: Network Modules
Network Module
C9300-NM-4G
C9300-NM-4M
C9300-NM-2Q
1
Description
This module has four 1 GE SFP module slots. Any combination of standard SFP
modules are supported. SFP+ modules are not supported.
If you insert an SFP+ module in the 1 GE network module, the SFP+ module
does not operate, and the switch logs an error message.
This module has four Multigigabit (mGig) interfaces.
This module has two 40 GE slots with a QSFP+ connector in each slot.
Cisco Catalyst 9300 Series Switches Hardware Installation Guide
USB Type A and Type C Ports
13
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