Amplify from 3 Mbps to tens and hundreds Gbps

If you need some performance test for your equipment and if you have a Juniper EX switch, for example EX4550, you can do it very easy. You can amplify from 3 Mbps to tens and hundreds Gbps. Today I have had amplify from 3 Mbps to 20 Gbps UDP flood.
Below are scheme and an example for configuration:

Step 1. Create analyzer with input and output interfaces
Foxtrot1# show ethernet-switching-options | display set
set ethernet-switching-options analyzer TEST input ingress interface ge-0/0/11.0
set ethernet-switching-options analyzer TEST input egress interface ge-0/0/11.0
set ethernet-switching-options analyzer TEST output interface xe-0/0/0.0

Step 2. For working analyzer on outgoing interface you must configure family ethernet-switching
set interfaces xe-0/0/0 unit 0 family ethernet-switching

Step 3. Connect both interfaces (xe-0/0/0 - outgoing interface for analyzer, and another free 10GE interface, for example xe-0/0/1) hard patchcords

Step 4. Disable in protocol RST interfaces xe-0/0/1 and others, when you going to send all mirroring traffic
Foxtrot1# show protocols rstp | display set
set protocols rstp interface xe-0/0/1.0 disable
set protocols rstp interface xe-0/0/2.0 disable
set protocols rstp interface xe-0/0/3.0 disable

Step 5. Create a new vlan for sending amplification, and disable MAC-learning
Foxtrot1# show vlans | display set
set vlans VLAN100 vlan-id 100
set vlans VLAN100 no-mac-learning

Step 6. Configure interface looping interface xe-0/0/1 and other for sending mirroring traffic

Foxtrot1# show interfaces xe-0/0/1 | display set
set interfaces xe-0/0/1 unit 0 family ethernet-switching vlan members 100

Foxtrot1# show interfaces xe-0/0/2 | display set
set interfaces xe-0/0/2 unit 0 family ethernet-switching vlan members 100

Foxtrot1# show interfaces xe-0/0/3 | display set
set interfaces xe-0/0/3 unit 0 family ethernet-switching vlan members 100

                                                                                                 10Gbps           10Gbps          10Gbps
                                                                                                   ^                        ^                     ^
______Analyzer____                                                               |                         |                      |
|                                 |                                                                |                         |                      |
ge-0/0/11        xe-0/0/0                 xe-0/0/1         xe-0/0/2           ......            xe-0/0/N
^                              |___________________| |_____________|_____________|___________|
|                                      Hard loopback                                              Vlan 100
|
Traffic UDP 3 Mbps