Users Guide

104 | Uplink Configuration Dell Networking W-Series Instant 6.2.1.0-3.4 | User Guide
when the VPN connection is not available for 3 minutes, the uplink switches to another available connection (if a low
priority uplink is detected and the uplink preference is set to none).
Switching Uplinks Based on Internet Availability
You can configure Dell W-Instant to switch uplinks based on Internet availability.
When the uplink switchover based on Internet availability is enabled, the W-IAP continuously sends ICMP packets
to some well-known Internet servers. If the request is timed out due to a bad uplink connection or uplink interface
failure, and the public Internet is not reachable from the current uplink, the W-IAP switches to a different connection.
You can set preferences for uplink switching using Dell W-Instant UI and CLI.
In the Dell W-Instant UI
To configure uplink switching:
1. Click the System > show advanced settings > Uplink. The Uplink tab contents are displayed.
2. Under Uplink Management, configure the following parameters:
l VPN failover timeout — To configure uplink switching based on VPNstatus, specify the duration to wait for
an uplink switch. The default duration is set to 180 seconds.
l Internet failover — To configure uplink switching based on Internet availability, perform the following steps:
a. Select Enabled from the Internet failover drop-down list.
b. Specify the required values for Max allowed test packet loss and Secs between test
packets.
c. Click OK.
When Internet failover is enabled, the W-IAP ignores the VPN status, although uplink switching
based on VPN status is enabled.
In the CLI
To enable uplink switching based on VPN status:
(Instant Access Point)(config)# uplink
(Instant Access Point)(uplink)# failover-vpn-timeout <seconds>
(Instant Access Point)(uplink)# end
(Instant Access Point)# commit apply
To enable uplink switching based on Internet availability:
(Instant Access Point)(config)# uplink
(Instant Access Point)(uplink)# failover-internet
(Instant Access Point)(uplink)# failover-internet-pkt-lost-cnt <count>
(Instant Access Point)(uplink)# failover-internet-pkt-send-freq <frequency>
(Instant Access Point)(uplink)# end
(Instant Access Point)# commit apply
Viewing Uplink Status and Configuration
To view the uplink status and configuration in the CLI:
Instant Access Point# show uplink status
Uplink preemption :enable
Uplink enforce :none
Ethernet uplink bond0 :DHCP
Uplink Table
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Type State Priority In Use