Advanced Reference Guide
Fast SwitcHub-8mi SNMP
8
9
Changing System Passwords
Use the Password Configuration screen to display and modify passwords for the on-
board configuration program. There are two user types, "Administrator" and " Normal
User," the access privilege is Read/Write for Administrator and Read Only for Normal
User. The default passwords are "Admin" and "Guest." Only the Administrator has
write access for parameters governing the SNMP agent. You should therefore assign a
password to the Administrator as soon as possible, and store it in a safe place.
Passwords can consist of up to 24 alphanumeric characters and are not case
sensitive. The configuration program will allow a user three attempts at entering a
correct password before locking the user out by terminating the connection. If for some
reason your password is lost, or you can not gain access to the System Configuration
Program, you should contact your Accton distributor for assistance.
The Password Configuration screen appears as shown below.
Password Configuration
Set Administrator Password
Set Normal User Password
Return to Previous Menu
input old administrator password :
Change password of the Administrator
Press <CTRL><X> to cancel. Press <ENTER> to accept changes.
Port Grouping Configuration
Use the Virtual LAN Configuration: Port Grouping Configuration screen to assign any
port on the switch to any of up to eight LAN groups. In conventional networks with
routers, broadcast traffic is split up into separate domains. Switches do not inherently
support broadcast domains. This can lead to broadcast storms in large networks that
handle a lot of IPX traffic. Port grouping can be used to create broadcast domains,
confining broadcast traffic to the originating group, and providing a much cleaner
network environment.
Port Grouping Configuration
Port Group1 Group2 Group3 Group4 Group5 Group6 Group7 Group8
--------------------------------------------------------------------
1 Yes No No No No No No No
2 Yes No No No No No No No
3 Yes No No No No No No No
4 Yes Yes No No No No No No
5 No Yes No No No No No No
6 No Yes No No No No No No
7 No Yes No No No No No No
8 No Yes No No No No No No
Return to Previous Menu
Return to Virtual LAN Configuration Screen
Use cursor keys to choose item. Press <ENTER> to confirm choice.
Press <CTRL><N> to return to the Main Menu
Parameter
Description
Port
Port number on the switch.
Group1 - 8
You can configure up to a maximum of 8 independent groups. Ports can belong
to more than one group. "Yes" indicates that the port has been assigned to that
group, "No" indicates it is not assigned. The default is all ports assigned to
Group1 only. Note that the Spanning Tree Algorithm will be automatically
disabled if two or more groups are configured.
Configuring Port Parameters
Use the Port Configuration screen to configure any port on the switch. In addition to the
functional parameters listed in the table below, note that you can also enable/disable
any port.
Port Configuration
Port Enabled Duplex AgingTime SwitchingMode FlowControl
--------------------------------------------------------------
1 Yes Auto 300 A-CT Yes
2 Yes Full 300 A-CT Yes
3 Yes Full 300 CT Yes
4 Yes Auto 300 A-CT No
5 Yes Auto 300 FgFree No
6 Yes Auto 300 CT Yes
7 Yes Half 300 A-CT Yes
8 Yes Half 300 A-CT Yes
Return to Previous Menu
Return to Main Menu
Use cursor keys to choose item. Press <ENTER> to confirm choice.
Press <CTRL><N> to return to the Main Menu
Parameter
Default
Description
Enabled
Yes
Allows you to disable a port due to abnormal behavior (e.g.,
excessive collisions), and then re-enable it after the problem has
been resolved. You may also disable a port for security reasons.
Duplex
Auto
Ports support auto-negotiation, full duplex, and half duplex.
Aging Time
300 secs.
The time-out period in seconds for aging out dynamically learned
forwarding information. The input range is 0 - 43200 seconds.
Switching Mode
A-CT
Sets the method for forwarding packets to "cut-through (CT),"
"fragment-free cut-through (FgFree)," "adaptive cut-through (A-CT),"
or "store and forward (S & F)." For details, see Switching Methods
on the next page.
Flow Control
yes
Used to enable or disable flow control. Flow control relies on back
pressure, which can eliminate frame loss by "blocking" traffic from
end stations or segments connected directly to the switch when its
buffers fill.
