Network Delay Simulator
nsim cross-connect enable-disable
nsim cross-connect enable-disable <interface-name-1> <interface-name-2> [disable]
Enable or disable network simulation cross-connect on two interfaces The network simulator must have already been configured, see the “nsim_configure” command.
Place the interfaces into a bridge group, to ensure that interfaces are in promiscuous mode.
To enable or disable network simulation cross-connect
nsim cross-connect enable-disable TenGigabitEthernet2/0/0 TenGigabitEthernet2/0
nsim cross-connect enable-disable TenGigabitEthernet2/0/0 TenGigabitEthernet2/0 disable
nsim enable-disable <intfc> <intfc> [disable]
Declaration: nsim_enable_disable_command
src/plugins/nsim/nsim.c line 338
Implementation: nsim_cross_connect_enable_disable_command_fn
nsim output-feature enable-disable
nsim output-feature enable-disable <interface-name> [disable]
Enable or disable network simulation output feature on an interface The network simulator must have already been configured, see the “nsim_configure” command.
To enable or disable network simulation output feature
nsim output-feature enable-disable TenGigabitEthernet2/0/0
nsim output-feature enable-disable TenGigabitEthernet2/0/0 disable
nsim output-feature enable-disable <intfc> [disable]
Declaration: nsim_output_feature_enable_disable_command
src/plugins/nsim/nsim.c line 527
Implementation: nsim_output_feature_enable_disable_command_fn
set nsim
set nsim delay <time> bandwidth <bps> packet-size <nbytes>
[packets-per-drop <nn>][drop-fraction <f64: 0.0 - 1.0>]
Configure the network simulation cross-connect Once the simulator is configured, use the “nsim enable-disable” command to set up a cross-connect with the supplied delay characteristics.
The cross connect configuration may be changed without restarting vpp but it is good practice to shut down the interfaces.
To configure the network delay simulator:
set nsim delay 10.0 ms bandwidth 5.5 gbit packet-size 128
set nsim delay <nn> bandwidth <bb> packet-size <nn>
Declaration: set_nsim_command
src/plugins/nsim/nsim.c line 801
Implementation: set_nsim_command_fn
show nsim
Display network delay simulator configuration
Display state info for the network delay simulator.
To display the state of the network simulator
show nsim verbose
Network simulator cross-connects TenGigabitEthernet2/0/0 and TenGigabitEthernet2/0/1
...inserting link delay of 10.00 ms, 20.00 ms round-trip
Configured bandwidth: 10.10 gbit/sec
Configured packet size: 128
Sim uses 157814784 bytes total
show nsim
Declaration: show_nsim_command
src/plugins/nsim/nsim.c line 846
Implementation: show_nsim_command_fn