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Cisco Catalyst 3850 Guide

Cisco Catalyst 3850
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Switch Stack Update
Performing the Stack Update
24
Best Practice User Guide for the Catalyst 3850 and Catalyst 3650 Switch Series
Obtain the Switch Software Image
Check the Software Version on the Stack Members
Configure the Switch to Run in Install Mode
Installing IOS image from local TFTP/FTP server
Update the Switch Stack Image
Note The following tasks are to be performed in a sequence that is listed here.
Obtain the Switch Software Image
We recommend that you review the appropriate switch release notes before installation to ensure
compatibility with your network topology. Each platform on Cisco.com has a Cisco-suggested release
based on software quality, stability, and longevity, which is designated by the symbol, as displayed
in Appendix 2, “Cisco Catalyst 3850-48P-S Switch
Step 1 Download the desired .bin file from Cisco.com to the switch flash storage.
Note The purpose of this example is only to show you how the Cisco-suggested release symbol is designated,
and not to give you recommended release versions because those change over time.
Figure 2 Cisco Catalyst 3850-48P-S Switch
.
Check the Software Version on the Stack Members
Step 2 Verify the running software version.
Configure the Switch to Run in Install Mode
Your switches should run in install mode while in production. This mode is not a requirement, but the
update procedure is different if your switches are running in a mode other than install mode.

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Cisco Catalyst 3850 Specifications

General IconGeneral
Stacking Bandwidth480 Gbps
Max Stacking Units9
Form FactorRack-mountable
RAM4 GB
Flash Memory4 GB
Operating SystemCisco IOS XE
ModelCatalyst 3850
Ports24 or 48 Gigabit Ethernet ports
Uplink Interfaces4 x 1GE, 2 x 10GE, or 4 x 10GE
Power SupplyRedundant power supplies
Dimensions44.5 x 44.8 x 4.45 cm
Weight7.6 kg
FeaturesIPv6
Power over Ethernet (PoE)PoE, PoE+, UPOE (varies by model)
Operating Temperature0 to 40°C

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