Aruba IAP-335 User Manual page 325

When the uplink switchover based on Internet availability is enabled, the IAP continuously sends Internet
Control Management Protocol (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 IAP switches to a different connection.
You can set preferences for uplink switching by using the Instant UI and the CLI.
In the Instant UI
To configure uplink switching:
1. Click System > show advanced settings > Uplink. The Uplink tab contents are displayed.
2. Under Management, configure the following parameters:
VPN failover timeout—To configure uplink switching based on VPN status, specify the duration to
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wait for an uplink switch. The default duration is set to 180 seconds.
Internet failover—To configure uplink switching based on Internet availability, perform the following
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steps:
a. Select Enabled from the Internet failover drop-down list.
b. Specify the required values for the following parameters:
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Internet failover IP—To configure an IP address to which the IAP must send IAP packets and verify if
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the Internet is reachable when the uplink is down. By default, the master IAP sends the ICMP packets to
8.8.8.8 IP address only if the out-of-service operation based on Internet availability (internet-down
state) is configured on the SSID.
3. Click OK.
When Internet failover is enabled, the 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 AP)(config)# uplink
(Instant AP)(uplink)# failover-vpn-timeout <seconds>
(Instant AP)(uplink)# end
(Instant AP)# commit apply
To enable uplink switching based on Internet availability:
(Instant AP)(config)# uplink
(Instant AP)(uplink)# failover-internet
(Instant AP)(uplink)# failover-internet-ip <ip>
(Instant AP)(uplink)# failover-internet-pkt-lost-cnt <count>
(Instant AP)(uplink)# failover-internet-pkt-send-freq <frequency>
(Instant AP)(uplink)# end
(Instant AP)# commit apply
Aruba Instant 6.5.0.0-4.3.0.0 | User Guide
Max allowed test packet loss—The maximum number of ICMP test packets that are
allowed to be lost to determine if the IAP must switch to a different uplink connection.
You can specify a value within the range of 1–1000.
Secs between test packets—The frequency at which ICMP test packets are sent. You
can specify a value within the range of 1–3600 seconds.
Internet check timeout—Internet check timeout is the duration for the test packet
timeout. You can specify a value within the range of 0–3600 seconds and the default
value is 10 seconds.
Uplink Configuration | 325