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Page 46 / 140 Scroll up to view Page 41 - 45
GS108T Smart Switch Software Administration Manual
4-2
Configuring Switching
v1.0, December 2007
•
“Switch Configuration
”
•
“Jumbo Frame Configuration
”
•
“Address Table
”
•
“Static Address
”
•
“Dynamic Address
”
The sections that follow in this chapter cover these features and tell you how to configure them in
the GS108T Smart Switch.
Ports
You can define speed, duplexing, and flow control operation for a port when autonegotiation is
off. When autonegotiation is on, those data are negotiated from the link partner. Otherwise, you
can enable or disable ports to control packet forwarding.
Port Configuration
The Port Configuration screen lets you to define the port switching settings:
1.
Select Switching > Ports > Port Configuration. A screen similar to the following displays.
.
Figure 4-1
Page 47 / 140
GS108T Smart Switch Software Administration Manual
Configuring Switching
4-3
v1.0, December 2007
2.
You can make changes to the port switching settings for an individual port, for a group of
ports, or for all ports simultaneously:
•
To change the port switching settings for an individual port, select the check box to the left
of its port number, and then select the port switching settings.
•
To change the port switching settings for a group of ports, select the check boxes to the
left of their port numbers, and then select the port switching settings.
•
To change the port switching settings for all ports simultaneously, select the check box at
the top of the column of check boxes, and then select the port switching settings.
The following port switching settings are displayed for all ports. Except for the Interface and
Link Status fields, all fields are configurable.
•
Interface
. Shows the port number.
•
Port Description
. Specifies the optional port description.
•
Link Status
. Shows whether the link is up or down.
•
Port Speed
. Specifies the speed for the port. The possible fields values are:
–
100M
.
Specifies that the port speed is 100 Mbps.
–
10M
.
Specifies that the port speed is 10 Mbps.
–
Auto
. Specifies that autonegotiation mode is enabled. Select this mode when you
want the port speed to function at 1000 Mbps.
–
Disable
. Specifies that the port speed is disabled.
•
Duplex Mode
. Specifies the duplex mode. The possible fields values are:
–
Full
.
Specifies that full-duplex mode is enabled.
–
Half
.
Specifies that half-duplex mode is enabled. This mode can be enabled only
when the port speed is 10 Mbps or 100 Mbps.
•
Flow Control
. Specifies whether flow control support is enabled or disabled:
–
Enable
. Specifies that flow control is enabled. If the port is oversubscribed, it sends a
pause frame or a jam packet. If the port receives a pause frame, it halts for a certain
period before sending out a frame.
–
Disable
.
Specifies that flow control is disabled.
Note:
You can also enter the interface number (that is, the port number) in the
GO
TO INTERFACE
field, and then click
GO
.
Page 48 / 140
GS108T Smart Switch Software Administration Manual
4-4
Configuring Switching
v1.0, December 2007
•
Default Priority
. Specifies the packet priority for packets arriving at the port without
tagging. The possible fields values are: 0–7. If packet arrives with a tag or priority tag, the
priority is retrieved from the priority field of the tag.
3.
Click
Apply
to confirm any settings changes.
LAG
Two types of link aggregation groups (LAGs) are supported:
•
Static Trunking
. Ports are grouped manually.
•
Link Aggregation Control Protocol
(LACP). Part of IEEE specification (802.3ad) that
allows several physical ports to be bundled together to form a single logical channel. Link
aggregation allows one or more links to be aggregated together to form a LAG, such that a
MAC client can treat the LAG as if it were a single link. Link aggregation can be used on
10-Mbps, 100-Mbps, or 1000-Mbps Ethernet full-duplex ports.
Example
: A network administrator could combine a group of five 100-Mbps ports into a logical
link that will function as a single 500-Mbps port (the actual throughput, however, will be less than
the total sum of the links).
Basic—LAG Configuration
The Basic LAG Configuration screen lets you define the status and administration settings for up
to two available LAGs. However, you first have to define the members of the LAGs. See
“Basic—
LAG Membership” on page 4-5
. To configure LAG:
1.
Select Switching > LAG > Basic > LAG Configuration. A screen similar to the following
displays.
Figure 4-2
Page 49 / 140
GS108T Smart Switch Software Administration Manual
Configuring Switching
4-5
v1.0, December 2007
2.
You can make changes to the LAG settings for an individual LAG or for both LAGs
simultaneously:
•
To change the LAG settings for an individual LAG, select the check box to the left of its
LAG ID, and then select the LAG settings.
•
To change the LAG settings for both LAGs simultaneously, select the check box at the top
of the column of check boxes, and then select the LAG settings.
The following LAG settings are displayed for both LAGs. Except for the LAG ID and LAG
State fields, all fields are configurable.
•
LAG ID
. Shows the LAG ID.
•
Admin Mode
. Specifies the LAG administrative mode. The possible fields values are:
–
Enable
. The LAG administrative mode is enabled.
–
Disable
. The LAG administrative mode is disabled.
•
LAG Description
: Specifies the optional LAG description.
•
LAG State
. Shows whether the LAG is enabled or disabled.
•
LACP
. Specifies whether LACP enabled or disabled for the LAG. The possible fields
values are:
–
Up
. LACP is enabled. (If the administrative mode is disabled, LACP cannot be up.)
This implies that static trunking is disabled.
–
Down
. LACP is disabled. This implies that static trunking is enabled.
3.
Click
Apply
to confirm any settings changes.
Basic—LAG Membership
The Basic LAG Membership screen lets you define the ports that are aggregated together to form a
single LAG. There are certain requirements for a LAG:
•
Each port can belong to only one LAG.
•
Each LAG can have up to four ports.
•
Ports in a LAG must have the same speed and be in the same VLAN group.
To configure LAG membership:
1.
Select Switching > LAG > Basic > LAG Membership. A screen similar to the following
displays.
Note:
In order for you to successfully apply a LAG configuration, all members of the
trunk must be selected before you enable the LAG configuration, must have the
same speed and duplex modem, and must be either linked or unlinked.
Page 50 / 140
GS108T Smart Switch Software Administration Manual
4-6
Configuring Switching
v1.0, December 2007
.
2.
From the LAG ID drop-down list, select
1
or
2
.
3.
Click
Unit 1
. A screen similar to the following displays.
4.
Select up to four ports for membership in the LAG by selecting the check boxes below the port
numbers.
5.
Click
Apply
to confirm any settings changes.
Advanced—LAG Configuration
The Advanced LAG Configuration screen is identical to the Basic LAG Configuration screen. See
“Basic—LAG Configuration” on page 4-4
.
Advanced—LAG Membership
The Advanced LAG Membership screen is identical to the Basic LAG Membership screen. See
“Basic—LAG Membership” on page 4-5
.
Figure 4-3
Figure 4-4

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