D-Link DGS-1210/ME series User Manual - page 48
4 Configuration
DGS-1210 series Metro Ethernet Managed Switch User Manual
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.
Figure 4.66 – Configuration > BPDU Protection Settings
Trap Status: Specify to send trap packet when Attack Detected, Attack Cleared, None or Both.
Log Status: Specify the Log Status when Attack Detected, Attack Cleared, None or Both.
Recover Time (60-1000000): Specify the BPDU protection Auto-Recovery timer, the range is from 60 to
1000000 and default is 60 seconds. Or select infinite.
Click Apply for changes to take effect.
From Port / To Port: Specify the port ranges to be configured.
State: To enabled or disable the protection mode for a specific port.
Mode: Specify the BPDU protection mode. The default mode is shutdown.
Drop – Drop all received BPDU packets when the port enters under attack stats.
Block – Drop all packets (includes BPDU and normal packets) when the port enters under attack
state.
Shutdown – Shut down the port when the port enters under attack state.
Click Apply for changes to take effect.
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