Prestige 660RU-Tx Series User’s Guide

Figure 22 WAN Backup

The following table describes the labels in this screen.

Table 13 WAN Backup

LABEL

DESCRIPTION

 

 

Backup Type

Select the method that the Prestige uses to check the DSL connection.

 

Select DSL Link to have the Prestige check if the connection to the DSLAM is up.

 

Select ICMP to have the Prestige periodically ping the IP addresses configured in

 

the Check WAN IP Address fields.

Check WAN IP

Configure this field to test your Prestige's WAN accessibility. Type the IP address of

Address1-3

a reliable nearby computer (for example, your ISP's DNS server address).

 

Note: If you activate either traffic redirect or dial backup, you must

 

configure at least one IP address here.

 

When using a WAN backup connection, the Prestige periodically pings the

 

addresses configured here and uses the other WAN backup connection (if

 

configured) if there is no response.

Fail Tolerance

Type the number of times (2 recommended) that your Prestige may ping the IP

 

addresses configured in the Check WAN IP Address field without getting a

 

response before switching to a WAN backup connection (or a different WAN backup

 

connection).

Recovery Interval

When the Prestige is using a lower priority connection (usually a WAN backup

 

connection), it periodically checks to whether or not it can use a higher priority

 

connection.

 

Type the number of seconds (30 recommended) for the Prestige to wait between

 

checks. Allow more time if your destination IP address handles lots of traffic.

Timeout

Type the number of seconds (3 recommended) for your Prestige to wait for a ping

 

response from one of the IP addresses in the Check WAN IP Address field before

 

timing out the request. The WAN connection is considered "down" after the Prestige

 

times out the number of times specified in the Fail Tolerance field. Use a higher

 

value in this field if your network is busy or congested.

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Chapter 6 WAN Setup