Lag; Lag Summary Screen - ZyXEL Communications USG40 User Manual

Table 118 Configuration > Network > Interface > Bridge > Add / Edit (continued)
LABEL
Check Method
Check Period
Check Timeout
Check Fail
Tolerance
Check Default
Gateway
Check this
address
Check Port
Related Setting
Configure WAN
TRUNK
Configure Policy
Route
OK
Cancel

10.9 LAG

Link Aggregation Group (LAG) is a way to combine multiple physical Ethernet interfaces into a
single logical interface. This increases uplink bandwidth. It also increases availability as even if a
member link goes down, LAG can continue to transmit and receive traffic over the remaining links.
To configure LAG, configure a link number and specify the member ports in the link. All ports must
have the same speed and be in full-duplex mode. You must configure the LAG on both sides of the
link and you must set the interfaces on either side of the link to be the same speed.
At the time of writing, up to 4 ports can be grouped into a LAG and up to 4 LAGs can be configured
on a ZyWALL/USG.

10.9.1 LAG Summary Screen

This screen lists every LAG created on the ZyWALL/USG. To access this screen, click Configuration
> Network > Interface > LAG.
Chapter 10 Interfaces
DESCRIPTION
Select the method that the gateway allows.
Select icmp to have the ZyWALL/USG regularly ping the gateway you specify to make
sure it is still available.
Select tcp to have the ZyWALL/USG regularly perform a TCP handshake with the
gateway you specify to make sure it is still available.
Enter the number of seconds between connection check attempts.
Enter the number of seconds to wait for a response before the attempt is a failure.
Enter the number of consecutive failures before the ZyWALL/USG stops routing through
the gateway.
Select this to use the default gateway for the connectivity check.
Select this to specify a domain name or IP address for the connectivity check. Enter
that domain name or IP address in the field next to it.
This field only displays when you set the Check Method to tcp. Specify the port
number to use for a TCP connectivity check.
Click WAN TRUNK to go to a screen where you can configure the interface as part of a
WAN trunk for load balancing.
Click Policy Route to go to the screen where you can manually configure a policy
route to associate traffic with this bridge interface.
Click OK to save your changes back to the ZyWALL/USG.
Click Cancel to exit this screen without saving.
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