Fortinet FortiWAN, Руководство пользователя

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Load Balancing & Fault Tolerance Tunnel Routing
For the symmetric FortiWAN sites, one site that is not running benchmark server is took as a benchmark client which
triggers the testing traffic. All the configured tunnel groups are listed in the table. Information of tunnel groups is also
listed in the table, it includes the group name, remote host ID, algorithm, enable and the group tunnels of a tunnel
group. Note that information of tunnel groups listed in the table cannot be changed for benchmark, and testing cannot
be performed for a disable (the checkbox "Enable" is unchecked) tunnel group. Buttons to trigger benchmark testing
and display test result are also listed together with every tunnel group in the table.
Show/Hide Details : Click to expand or collapse information of the tunnel group.
Test :
Click to enter the management panel to start benchmark testing. For a disable tunnel
group, a error message ["
This group is not enabled "] displays.
Show Test Result :
Click the enter the management panel to display the previous testing result. For a disable
tunnel group, a error message ["
This group is not enabled "] displays.
To test a tunnel group, benchmark client individually generates and sends testing traffic to benchmark server via every
single tunnel in the group, and then brings out the data for evaluating the tunnels. The management panel lists the
tunnels of specified tunnel group, the buttons to start testing and the table to display testing result.
Test All :
Click to start benchmark test to all the tunnels of the tunnel group. Note that testing is per-
formed individually to every single tunnel in a top-down order.
Test : Click to start benchmark test to the specified tunnel.
Close : Click the stop and leave the benchmark management panel.
Every benchmark testing to a tunnel contains two parts, testing without traffic and testing with traffic . In the first 20
seconds, benchmark client continues to send ping ICMP echo requests to the benchmark server without sending other
testing traffic together. In the next 20 seconds then, benchmark client continues to creates TCP data streams together
with ping ICMP echo requests to measure the throughput of the tunnel (WAN links). The testing traffic between
benchmark client and server is encapsulated with GRE header, so that it simulates real tunnel transmission for
performance measurement. Benchmark server responses client for the testing traffic via the same tunnel, and the
measurement result can be generated by benchmark client and displays in the table. The measurement result
contains
Tunnel : WAN links employed by the tunnel between the symmetric sites.
Without Traffic - RTT : Round-Trip Time of the ping ICMP packets in average (without other tunnel
traffic).
Without Traffic - Packet Loss : Packet loss of the ping ICMP packets in percentage (without other tunnel traffic).
With Traffic - Bandwidth : Throughput of the tunnel.
With Traffic - RTT : Round-Trip Time of the ping ICMP packets in average (with the traffic of through-
put measurement).
With Traffic - Packet Loss : Packet loss of the ping ICMP packets in percentage (with the traffic of through-
put measurement).
152 FortiWAN Handbook
Fortinet Technologies Inc.