4 Configuration
DGS-1210 series Metro Ethernet Managed Switch User Manual
54
Configuration > Link Aggregation > LACP Port Settings
The LACP Port Settings is used to create port trunking groups on the Switch. The user may set which ports
will be active and passive in processing and sending LACP control frames.
Figure 4.72 – Configuration > Link Aggregation > LACP Port Settings
From Port:
The beginning of a consecutive group of ports may be configured starting with the selected port.
To Port:
The ending of a consecutive group of ports may be configured starting with the selected port.
Port Priority (0-65535):
Displays the LACP priority value for the port. Default is
128
.
Activity:
There are two different roles of LACP ports:
Active -
Active LACP ports are capable of processing and sending LACP control frames. This allows
LACP compliant devices to negotiate the aggregated link so the group may be changed dynamically
as needs require. In order to utilize the ability to change an aggregated port group, that is, to add or
subtract ports from the group, at least one of the participating devices must designate LACP ports as
active. Both devices must support LACP.
Passive -
LACP ports that are designated as passive cannot initially send LACP control frames. In
order to allow the linked port group to negotiate adjustments and make changes dynamically, one
end of the connection must have "active" LACP ports.
Timeout:
Specify the administrative LACP timeout. The possible field values are:
Short (3 Sec)
- Defines the LACP timeout as 3 seconds.
Long (90 Sec)
- Defines the LACP timeout as 90 seconds. This is the default value.
Click
Apply
to implement the changes made.
Configuration > BPDU Protection Settings
The BPDU Protection Settings page allows user to configure the BPDU protection function for the ports on
the Switch. In generally, there are two states in BPDU protection function. One is normal state, and another
is under attack state. The under attack state have three modes: drop, block, and shutdown. A BPDU
protection enabled port will enter and under attack state when it receives one STP BPDU packet. And it will
take action based on the configuration. Thus, BPDU protection can only be enabled on the STP-disabled
port. Select
Enabled
or
Disabled
and click
Apply
to enabled or disable the BPDU attack protection state.
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