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Cisco 3850 Reload Slot Command

  1. Cisco 3850 Reload Slot Command Generator
  2. Cisco 3850 Reload Slot Commands
  3. Cisco 3850 Commands Cheat Sheet
  4. Cisco 3850 Configuration Guide
  5. Cisco Ios Reload Command
  6. Cisco 3850 Switch Commands
  7. Cisco 3850 Stack Commands

Cisco switches can be used as plug-and-play devices out of the box but they also offer an enormous amount of features. Although the main purpose of the switch is to provide inter-connectivity in Layer 2 for the connected devices of the network, there are myriad features and functionalities that can be configured on Cisco Switches.

In the following Cisco Switch Commands Cheat Sheet, I have tried to include the most important and frequently-used CLI commands that Cisco professionals encounter in real world networks. I know that the list is not exhaustive but I believe that the most useful commands are included. Make sure to download the whole commands cheat sheet in PDF format below so you can print it or save it on your computer for future reference.

NOTE: Other Cisco Command Cheat Sheet Posts:

The following commands will work on most Cisco switch models such as 4500, 3850, 3650, 2960, 3560 etc.

Verification Commands:

TestSwitch#show version

This video describes how to use the Cisco Reload command. In addition, it provides some strategies for using this command. Hi All,I have a switch stack of 3 3850 switches. Switch 1 reloaded once on a thursday then again on a sunday 3 times on monday - at that point pulled it out of the rack and away. SOLVED cisco 3850 random reloads - Spiceworks.

[Displays software and hardware information]

TestSwitch#show running-config

[Displays currently running configuration in DRAM]

TestSwitch#show start

Cisco Catalyst 3850 Series Switches with 12 and 24 1 Gigabit Ethernet SFP ports Figure 4. Cisco Catalyst 3850 Series Switches with 10 Gigabit Ethernet 48 ports Table 1 shows the Cisco Catalyst 3850 Series configurations. Cisco Catalyst 3850 Series configurations Model Total 10/100/1000 or SFP or SFP+ ports Default AC power supply Available. Command Reference, Cisco IOS XE Gibraltar 16.12.x (Catalyst 3850 Switches) 31/Jul/2019 Command Reference, Cisco IOS XE Fuji 16.9.x (Catalyst 3850 Switches) 28/Sep/2018 Command Reference, Cisco IOS XE Fuji 16.8.x (Catalyst 3850 Switches) 03/Apr/2018 Command Reference, Cisco IOS XE Everest 16.6.x (Catalyst 3850 Switches) 03/Dec/2017 Command Reference, Cisco IOS XE Everest 16.5.1a (Catalyst 3850.

[Displays configuration in NVRAM which will be loaded after reboot]

TestSwitch#show flash:

[Displays Flash memory information]

TestSwitch#show boot

[Displays boot path and image]

TestSwitch#show clock

[Displays the system clock]

TestSwitch#show interfaces

[Displays all interfaces configuration and status of line]

TestSwitch#show vlan

[Displays vlan number, name, status and ports associated with it]

TestSwitch#show vtp status

[Displays VTP mode, Number of existing vlans and config revision]

TestSwitch#show interface status

[Displays interface status, vlan, Duplex, Speed and type]

TestSwitch#show etherchannel

[Displays etherchannel information]

TestSwitch#show cdp neighbors

[Displays information of connected devices]

TestSwitch#show cdp neighbors detail

[Displays detailed information of connected devices]

TestSwitch#show mac address-table

[Displays current MAC address forwarding table and which MAC is learned on each switch port]

TestSwitch#show spanning-tree

[Displays spanning-tree state information, which interfaces are in active or blocking state etc]

Resetting the Switch

TestSwitch#delete flash:vlan.dat

[Deletes vlan database from flash memory so you can start adding new VLANs from scratch]

TestSwitch#erase startup-config

[Delete start-up file from NVRAM]

TestSwitch#reload

[Reboot the Switch]

Setting Host Names

TestSwitch#config t

[Entering into Global Configuration Mode]

TestSwitch(config)#hostname MySwitch

[Enter the hostname of the switch]

MySwitch(config)#

Setting login credentials:

MySwitch(config)#username admin password csico1234

[create username and password for logging in to the switch]

MySwitch(config)#enable secret test1

[Sets encrypted secret password using MD5 algorithm. This is the enable password that you will be asked to enter when trying to enter into “enable” mode]

MySwitch(config)#service password-encryption

[Encrypt all the passwords using MD5]

Console Access:

MySwitch(config)#line con 0

[Enter into line console mode]

MySwitch(config-line)#password test3

[Set password on console]

Cisco 3850 Reload Slot Command

MySwitch(config-line)#login

[Enable password checking on console]

SSH/Telnet Access to the switch:

MySwitch(config)#line vty 0 4

[Enters line vty mode for all five virtual ports]

MySwitch(config-line)#transport input ssh

[Enable SSH]

MySwitch(config-line)#transport input telnet

[Enable telnet]

MySwitch(configiline)#password test3

[Set password]

Setting IP Address (To allow remote access to the switch):

MySwitch(config)#interface vlan1

[Enters vlan1, the native vlan]

MySwitch(config-if)#ip address 192.168.1.2 255.255.255.0

[Set IP address for management]

MySwitch(config-if)#exit

MySwitch(config)#ip default-gateway 192.168.1.1

[Exit path for the switch – gateway IP]

Interface description

MySwitch(config)#interface g0/1

MySwitch(config-if)#description TO SERVER

Duplex and Speed Settings

MySwitch(config)#interface g0/1

MySwitch(config-if)#speed 10

[Force 10Mbps Speed]

MySwitch(config-if)#speed 100

[Force 100Mbps Speed]

MySwitch(config-if)#speed auto

[Enable auto speed configuration]

MySwitch(config-if)#duplex auto

[Enable auto duplex configuration on switch port]

MySwitch(config-if)#duplex full

[Enable full duplex configuration on switch port]

MySwitch(config-if)#duplex half

[Enable half duplex configuration on switch port]

Setting Web-based interface for configuration (GUI):

MySwitch(config)#ip http server

[Enable HTTP server]

MySwitch(config)#ip http port 80

[Set port number for HTTP]

Port-Security

MySwitch(config)#interface g0/1

[Enter the interface to set port-security]

MySwitch(config-if)#switchport port-security

[Enable port security on the interface]

Cisco 3850 Reload Slot Command Generator

MySwitch(config-if)#switchport port-security mac-address sticky

[Interface converts all MAC addresses to sticky secure addresses]

MySwitch(config-if)#switchport port-security maximum 1

[Only one MAC address will be allowed for this port]

MySwitch(config-if)#switchport port-security violation shutdown

[Port will shut down if violation occurs]

MySwitch(config-if)#exit

MySwitch(config)#exit

MySwitch#show port-security

[Verifying Port security]

Save current configuration

MySwitch(config)#copy running-config startup-config

PortFast

“Portfast” bypasses the Spanning Tree states and brings the port up as quickly as possible. Use it only if you connect a regular host (e.g Computer) on the port. Do not use this command when the port is trunk or if you connect other switches on the specific port.

MySwitch(config)#interface FastEthernet 0/1

MySwitch(config-if)#spanning-tree portfast

Configuring VLANs

MySwitch(config)#vlan 20

[Create a Layer2 VLAN with id 20]

MySwitch(config-vlan)# name testvlan

[Enter a name for the vlan]

MySwitch(config-vlan)#exit

MySwitch(config)#exit

Cisco 3850 Reload Slot Commands

MySwitch#show vlan brief

[Verify the vlan database]

Assigning access ports to a vlan

MySwitch(config)#interface g0/1

MySwitch(config-if)#switchport mode access

[Set the interface in switch access mode]

MySwitch(config-if)#switchport access vlan 20

[Assign the port to vlan 20]

Cisco 3850 Commands Cheat Sheet

MySwitch(config-if)#exit

The following commands will select a range of interfaces (from 1 to 24) and add all of them to vlan20

MySwitch(config)#interface range gigabitEthernet 0/1-24

MySwitch(config-if)#switchport mode access

MySwitch(config-if)#switchport access vlan 20

MySwitch(config-if)#exit

Configuring trunk port

MySwitch(config)#interface g0/2

MySwitch(config-if)#switchport trunk encapsulation dot1q

[Configure the port to support 802.1Q Encapsulation (default is negotiate)]

MySwitch(config-if)#switchport mode trunk

Cisco 3850 Configuration Guide

[Set the interface in permanent trunking mode]

MySwitch(config-if)#switchport trunk native vlan 20

[Specify native vlan for 802.1q trunks – OPTIONAL]

MySwitch(config-if)#switchport trunk allowed vlan 2-5

[vlans 2 to 5 are allowed to pass through the trunk]

MySwitch(config-if)#switchport trunk allowed vlan add 7

Cisco Ios Reload Command

[add also vlan 7 in the allowed vlans]

MySwitch(config-if)#switchport trunk allowed vlan remove 3

[remove vlan 3 from the allowed vlans in the trunk]

MySwitch#show interface g0/2 trunk

[Verify the trunk ports and associated vlans on the specific interface]

DOWNLOAD THE CHEAT SHEET AS PDF FILE

Related Posts

Cisco 3850 Switch Commands

These steps are from a high level view and cover the overall process. Some steps are omitted.

Download the IOS and place it on a thumb drive, or tftp etc.

When complete:

After reboot/reload etc.

After the switch is back up, if you have a stack type:

Cisco 3850 Stack Commands

If there is a mismatch you can enable auto-upgrade. So all switches added get the later version and “match” the stack.

You must reload the newly added switch only; a full stack reload is not necessary. In this case, the newly added switch is switch 3, so the reload slot 3 command is entered.
Tip: The slot mentioned in these commands designates the switch in the stack (slot 1 = switch 1).