Netgear XCM8806 - 8800 SERIES 6-SLOT CHASSIS SWITCH 사용자 설명서

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Chapter 5.  Configuring Slots and Ports on a Switch  
NETGEAR 8800 User Manual 
A LAG port moves into a defaulted state after the timeout value expires with no LACPDUs 
received for the other side of the link. You can configure whether you want this defaulted LAG 
port removed from the aggregator or added back into the aggregator. If you configure the 
LAG to remove ports that move into the default state, those ports are removed from the 
aggregator and the port state is set to unselected. The default configuration for defaulted 
ports is to be removed, or deleted, from the aggregator. 
Note:  
To force the LACP trunk to behave like a static sharing trunk, use the 
configure sharing lacp defaulted-state-action
 command to add 
ports to the aggregator.
If you configure the LAG to add the defaulted port into the aggregator, the system takes 
inventory of the number of ports currently in the aggregator. If there are fewer ports in the 
aggregator than the maximum number allowed, the system adds the defaulted port to the 
aggregator (port set to selected and collecting-distributing). If the aggregator has the 
maximum ports, the system adds the defaulted port to the standby list (port set to standby). 
Use the 
show lacp lag <group-id> {detail}
 command to display the defaulted action set for 
the LAG.
Note:  
If the defaulted port is assigned to standby, that port automatically 
has a lower priority than any other port in the LAG (including those 
already in standby).
Health Check Link Aggregation
The Health Check LAG application allows you to create a link aggregation group where 
individual member links can monitor a particular TCP/IP address and TCP port. When 
connectivity to the TCP/IP address and TCP port fails, the member link is removed from the 
link aggregation group.
Establishing the status of a TCP connectivity is based on standard TCP socket connections. 
As long as the switch can establish a TCP connection to the target switch and TCP port, the 
connection is considered up. The TCP connection will retry based on the configured 
frequency and miss settings.
A typical use case for this application is when a user wishes to connect each member link to 
a Security Server to validate traffic. Each member link of the Health Check LAG is connected 
to an individual Security Server. The LAG is added to a VLAN on the same subnet as the 
Security Server IP addresses they wish to monitor. Each member port is configured to 
monitor a particular IP address and TCP port. The Health Check LAG application attempts to 
do a TCP connect to each IP/TCP port through each member port. The Health Check LAG, 
by virtue of the sharing algorithm, will load balance traffic across the member links. If a TCP 
connection cannot be established through the member link, the port is removed from the