Chapter 11 Trunks

Figure 147 Network > Interface > Trunk > Edit

Each field is described in the table below.

Table 65 Network > Interface > Trunk > Edit

LABEL

DESCRIPTION

Name

Enter a descriptive name for this trunk. You may use 1-31 alphanumeric characters,

 

underscores(_), or dashes (-), but the first character cannot be a number. This value

 

is case-sensitive.

Load Balancing

Select a load balancing method to use from the drop-down list box.

Algorithm

Select Weighted Round Robin to balance the traffic load between interfaces based

 

on their respective weights. Weighted round robin is activated only when the first

 

group member interface has more traffic than it can handle.

 

Select Least Load First to send new session traffic through the least utilized trunk

 

member.

 

Select Spillover to send network traffic through the first interface in the group

 

member list until there is enough traffic that the second interface needs to be used

 

(and so on).

 

 

#

This column displays the priorities of the group’s interfaces. The order of the

 

interfaces in the list is important since they are used in the order they are listed.

 

 

Member

Click this icon to open a screen where you can select an interface to be a group

 

member.

 

If you select an interface that is part of another Ethernet interface, the ZyWALL does

 

not send traffic through the interface as part of the trunk. For example, if you have

 

physical port 5 in the ge2 representative interface, you must select interface ge2 in

 

order to send traffic through port 5 as part of the trunk. If you select interface ge5 as

 

a member here, the ZyWALL will not send traffic through port 5 as part of the trunk.

 

 

Mode

Select Active to have the ZyWALL always attempt to use this connection.

 

Select Passive to have the ZyWALL only use this connection when all of the

 

connections set to active are down. You can only set one of a group’s interfaces to

 

passive mode.

 

 

Weight

This field displays with the weighted round robin load balancing algorithm. Specify

 

the weight (1~10) for the interface. The weights of the different member interfaces

 

form a ratio. This ratio determines how much traffic the ZyWALL sends through each

 

member interface. The higher an interface’s weight is (relative to the weights of the

 

interfaces), the more traffic the ZyWALL sends through that interface.

 

 

Downstream

This field displays with the least load first load balancing algorithm. It displays the

Bandwidth

maximum number of kilobits of data the ZyWALL is to allow to come in through the

 

interface per second.

 

 

Upstream

This field displays with the least load first or spillover load balancing algorithm.It

Bandwidth

displays the maximum number of kilobits of data the ZyWALL is to send out through

 

the interface per second.

 

 

 

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ZyWALL USG 300 User’s Guide