Hello friends, the following commands are accepted by most Switches 3com and are quite useful. Many commands are taken directly from the manufacturer’s manual.
Setting the name of the Switch
[[5500G-EI] sysname SW_Core [SW_Core]
Vlans configuration
Creating a VLAN and putting a name
[Switch] vlan 3 [Switch-vlan] name
Creating a VLAN and placing a description
[Switch] vlan 3 [Switch-vlan] description
Creating a multiple VLANs at the same time
[ [Switch] vlan to 2 to 5
Deleting a vlan
[Switch] undo vlan 2
Showing that the VLANs that exist on the switch
[Switch] display vlan
Showing information for a particular VLAN (description, IP address, if any, port tagged and untagged)
[Switch] display vlan 2
Setting the IP to VLAN 2
[Switch] interface Vlan-interface 2 [Switch] -Vlan-Interface] ip address 192.168.100.1 255.255.255.0
Setting the default gateway
[Switch] ip route-static 0.0.0.0 0.0.0.0 192,168,100,254 (gateway IP)
Port Settings
Entering the configuration mode of a port
[Switch] gigabit-ethernet interface 1/0/4
Putting a description on the door
[Switch] gigabit-ethernet interface 1/0/4 [Switch-GigabitEthernet] description
Adding port to a vlan
Setting up the door
ACCESS door: Access port, used to connect hosts (stations, servers, etc.)
[Switch] gigabit-ethernet interface 1/0/4 [Switch-GigabitEthernet] port link-type access
TRUNK port: port that will allow more than one VLAN traffic through the door (using TAG (802.1q) Used as uplink port, the links between switches..
[Switch] gigabit-ethernet interface 1/0/5 [Switch-GigabitEthernet] port link-type trunk
Associating a door access to a vlan.
[Switch] gigabit-ethernet interface 1/0/4 [Switch-GigabitEthernet] port access vlan 5
Removing a VLAN an access port. The door will once again belong to VLAN 1 (default)
[Switch] gigabit-ethernet interface 1/0/4 [Switch-GigabitEthernet] undo port access vlan
Associating all VLANs the trunk port. Thus, all VLANs will pass through the port trunk
[Switch] gigabit-ethernet interface 1/0/5 [Switch-GigabitEthernet] port trunk permit vlan all
Copying settings from one port to another (vlan, spanningtree, speed etc.). Does not make a copy of the broadcast control settings
[Switch] copy configuration source gigabit-ethernet 1/0 / 1destination giggabit-ethernet 1/0/6
Copying settings from one port to multiple ports
[Switch] copy configuration source gigabit-ethernet 1/0 / 1destination giggabit-ethernet 1/0/6 to gigabit-ethernet 1/0/12
Setting the ADMIN user password .
Local-user admin service-type telnet terminal level 3 password Cipher s3nha
Removing users and default MANAGER MONITOR
[Switch] undo site-user manager [Switch] undo site-user monitor
Configuring and enabling SNMP management with communities and s1ro s1rw
[Switch] snmp-agent community read s1ro [Switch] snmp-agent community write s1rw
Removing the default communities PUBLIC and PRIVATE
[Switch] undo snmp-agent community write private [Switch] undo snmp-agent community read public
Enabling the spanning tree protocol (is already enabled by default)
[Switch] stp enable
Setting the version of the rapid spanning tree protocol
[Switch] stp mode rstp
Configuring the switch as the root bridge of the spanning tree primary
The stp root primary command automatically configures the value of the Bridge Priority to 0 (zero)
[Switch] stp root primaryor [Switch] stp priority 0
Configuring the switch as root secondary bridge spanning tree
The stp root command automatically configures the secondary value of the Bridge Priority for 4096
[Switch] stp root secondary
or
[Switch] stp priority 4096
Creating a link aggregation between two switches. Do not forget to perform these procedures on both switches. In this example are the ports used 1/0/25 and 1/0/26 of the two switches.
link-aggregation group 1 mode static #GigabitEthernet 1/0/25 interface undo shutdown port link-aggregation group 1 #GigabitEthernet 1/0/26 interface undo shutdown port link-aggregation group 1
Saving Switch settings
save
Erasing all Switch settings
reset saved-configuration reboot
Display commands
Information from a particular port (speed, duplex, etc.)
display interface GigabitEthernet 1/0/3
Showing a summary of ALL the doors
display interface brief
Switch showing which ports are of type TRUNK
trunk port display
Showing a summary of LINK AGGREGATION.
display link-aggregation summary display link-aggregation verbose
Showing the configuration of the current Switch
display current-configuration
Showing information Spanning Tree, which ports are LOCKED and which are at FORWARDING
display stp brief stp display