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Copyright @ 2014 Pepwave
Link Failure Detection
Link Failure
Detection Time
The bonded
SpeedFusion
TM
can detect routing failures on the path between two sites
over each WAN connection. Failed WAN connections will not be used to route VPN
traffic. Health check packets are sent to the remote unit to detect any failure. The more
frequent checks it sends, the shorter detection time, but the higher bandwidth overhead
will be consumed.
When
Recommended
is selected, a health check packet is sent out every 5 seconds, and
the expected detection time is 15 seconds.
When
Fast
is selected, a health check packet is sent out every 3 seconds, and the
expected detection time is 6 seconds.
When
Faster
is selected, a health check packet is sent out every 1 second, and the
expected detection time is 2 seconds.
When
Extreme
is selected, a health check packet is sent out every 0.1 second, and the
expected detection time is under 1 second.
By default,
Recommended
is selected.
Important Note
Pepwave
’s proprietary
SpeedFusion
TM
used TCP port 32015 and UDP port 4500 for establishing VPN
connections. If you have a firewall in front of the devices, you will need to add firewall rules for these port and
protocols which will allow inbound and outbound traffic pass-through the firewall.
Tip
Want to know more about VPN Sub-Second Session Failover? Visit our
YouTube Channel
for a video tutorial!
http://youtu.be/TLQgdpPSY88
