Chapter 12 Trunks

Each field is described in the table below.

Table 75 Configuration > Network > Interface > Trunk > Add (or Edit)

LABEL

DESCRIPTION

Name

This is read-only if you are editing an existing trunk. When adding a new

 

trunk, 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

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

Balancing

Select Weighted Round Robin to balance the traffic load between

Algorithm

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).

 

 

 

The table lists the trunk’s member interfaces. You can add, edit, remove,

 

or move entries for user configured trunks.

 

 

Add

Click this to add a member interface to the trunk. Select an interface and

 

click Add to add a new member interface after the selected member

 

interface.

 

 

Edit

Double-click an entry or select it and click Edit to open a screen where

 

you can modify the entry’s settings.

 

 

Remove

To remove a member interface, select it and click Remove. The ZyWALL

 

confirms you want to remove it before doing so.

 

 

Move

To move an interface to a different number in the list, click the Move

 

icon. In the field that appears, specify the number to which you want to

 

move the interface.

 

 

#

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.

 

 

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.

 

 

Ingress

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

Bandwidth

displays the maximum number of kilobits of data the ZyWALL is to allow

 

to come in through the interface per second.

 

 

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ZyWALL USG 50 User’s Guide