diff options
| author |   Hanoh Haim <hhaim@cisco.com> | 2015-06-25 10:51:15 +0300 |
|---|---|---|
| committer | Hanoh Haim <hhaim@cisco.com> | 2015-06-25 10:51:15 +0300 |
| commit | ef209c347bfb99ebe03a0ff2c7947a6ebbe03baf (patch) | |
| tree | 51a72c0df7a8fd5d2feba6a3126d71e6cba6a34c /trex_book_basic.asciidoc | |
first public version
Diffstat (limited to 'trex_book_basic.asciidoc')
| -rwxr-xr-x | trex_book_basic.asciidoc | 3308 |
1 files changed, 3308 insertions, 0 deletions
diff --git a/trex_book_basic.asciidoc b/trex_book_basic.asciidoc new file mode 100755 index 00000000..d64cea43 --- /dev/null +++ b/trex_book_basic.asciidoc @@ -0,0 +1,3308 @@ + +== Basic usage + +=== DNS basic example + +The following is a simple example helpful for understanding how TRex works. The example uses the TRex simulator. +This simulator can be run on any Cisco Linux including on the TRex itself. +TRex simulates clients and servers and generates traffic based on the pcap files provided. + +.Clients/Servers +image:images/trex_model.png[title="generator"] + +The following is an example YAML-format traffic configuration file (cap2/dns_test.yaml), with explanatory notes. + +[source,python] +---- +$more cap2/dns_test.yaml +- duration : 10.0 + generator : + distribution : "seq" + clients_start : "16.0.0.1" <1> + clients_end : "16.0.0.255" + servers_start : "48.0.0.1" <2> + servers_end : "48.0.0.255" + clients_per_gb : 201 + min_clients : 101 + dual_port_mask : "1.0.0.0" + tcp_aging : 1 + udp_aging : 1 + mac : [0x00,0x00,0x00,0x01,0x00,0x00] + cap_info : + - name: cap2/dns.pcap <3> + cps : 1.0 <4> + ipg : 10000 <5> + rtt : 10000 <6> + w : 1 +---- +<1> Range of clients (IPv4 format). +<2> Range of servers (IPv4 format). +<3> pcap file, which includes the DNS cap file that will be used as a template. +<4> Number of connections per second to generate. In the example, 1.0 means 1 connection per secod. +<5> Inter-packet gap (microseconds). 10,000 = 10 msec. +<6> Should be the same as ipg. + +.DNS template file +image:images/dns_wireshark.png[title="generator"] + + +The DNS template file includes: + +1. *One* flow +2. Two packets +3. First packet: from the initiator (client -> server) +4. Second packet: response (server -> client) + +TRex replaces the client_ip, client_port, and server_ip. The server_port will be remain the same. + + +[source,bash] +---- +$./bp-sim-32-debug -f cap2/dns.yaml -o my.erf -v 3 + -- loading cap file cap2/dns.pcap + id,name , tps, cps,f-pkts,f-bytes, duration, Mb/sec, MB/sec, #<1> + 00, cap2/dns.pcap ,1.00,1.00, 2 , 170 , 0.02 , 0.00 , 0.00 , + 00, sum ,1.00,1.00, 2 , 170 , 0.00 , 0.00 , 0.00 , + + Generating erf file ... +pkt_id,time,fid,pkt_info,pkt,len,type,is_init,is_last,type,thread_id,src_ip,dest_ip,src_port #<2> + 1 ,0.010000,1,0x9055598,1,77,0,1,0,0,0,10000001,30000001,1024 + 2 ,0.020000,1,0x9054760,2,93,0,0,1,0,0,10000001,30000001,1024 + 3 ,2.010000,2,0x9055598,1,77,0,1,0,0,0,10000002,30000002,1024 + 4 ,2.020000,2,0x9054760,2,93,0,0,1,0,0,10000002,30000002,1024 + 5 ,3.010000,3,0x9055598,1,77,0,1,0,0,0,10000003,30000003,1024 + 6 ,3.020000,3,0x9054760,2,93,0,0,1,0,0,10000003,30000003,1024 + 7 ,4.010000,4,0x9055598,1,77,0,1,0,0,0,10000004,30000004,1024 + 8 ,4.020000,4,0x9054760,2,93,0,0,1,0,0,10000004,30000004,1024 + 9 ,5.010000,5,0x9055598,1,77,0,1,0,0,0,10000005,30000005,1024 + 10 ,5.020000,5,0x9054760,2,93,0,0,1,0,0,10000005,30000005,1024 + 11 ,6.010000,6,0x9055598,1,77,0,1,0,0,0,10000006,30000006,1024 + 12 ,6.020000,6,0x9054760,2,93,0,0,1,0,0,10000006,30000006,1024 + 13 ,7.010000,7,0x9055598,1,77,0,1,0,0,0,10000007,30000007,1024 + 14 ,7.020000,7,0x9054760,2,93,0,0,1,0,0,10000007,30000007,1024 + 15 ,8.010000,8,0x9055598,1,77,0,1,0,0,0,10000008,30000008,1024 + 16 ,8.020000,8,0x9054760,2,93,0,0,1,0,0,10000008,30000008,1024 + 17 ,9.010000,9,0x9055598,1,77,0,1,0,0,0,10000009,30000009,1024 + 18 ,9.020000,9,0x9054760,2,93,0,0,1,0,0,10000009,30000009,1024 + 19 ,10.010000,a,0x9055598,1,77,0,1,0,0,0,1000000a,3000000a,1024 + 20 ,10.020000,a,0x9054760,2,93,0,0,1,0,0,1000000a,3000000a,1024 + +file stats +================= + m_total_bytes : 1.66 Kbytes + m_total_pkt : 20.00 pkt + m_total_open_flows : 10.00 flows + m_total_pkt : 20 + m_total_open_flows : 10 + m_total_close_flows : 10 + m_total_bytes : 1700 +---- +<1> Global statistics on the templates given. cps=connection per second. tps is template per second. they might be different in case of plugins where one template includes more than one flow. For example RTP flow in SFR profile (avl/delay_10_rtp_160k_full.pcap) +<2> Generator output. + + +[source,bash] +---- +$wireshark my.erf +---- +gives +//TBD: Not sure what the output looks like here, with this line showing only "gives" + +.TRex generated output file +image:images/dns_trex_run.png[title="generator"] + +As the output file shows... + +- TRex generates a new flow every 1 sec. +- Client IP values are taken from client IP pool . +- Servers IP values are taken from server IP pool . +- IPG (iter packet gap) values are taken from the configuration file (10 msec). + + +[NOTE] +===================================================================== +In basic usage, TRex does not wait for an initiator packet to be received. The response packet will be triggered based only on timeout (IPG in this example). +In advanced scenarios (for example, NAT), The first packet of the flow can process by TRex software and initiate the response packet only when a packet is received. +Consequently, it is necessary to *process* the template pcap file offline and ensure that there is enough round-trip delay (RTT) between client and server packets. +One approach is to record the flow with a Pagent that creats RTT (10 msec RTT in the example), recording the traffic at some distance from both the client and server (not close to either side). +This ensures sufficient delay that packets from each side will arrive without delay in the DUT. TRex-dev will work on an offline tool that will make it even simpler. +Another approach is to change the `yaml` `ipg` field to a high enough value (bigger than 10msec ). +===================================================================== + +Converting the simulator text results in a table similar to the following: + +.DNS example formatted results +[format="csv",cols="1^,2^,1^,1^,2^,1^,2^,1^", options="header"] +|================= + pkt,time sec,fid,flow-pkt-id,client_ip,client_port,server_ip ,direction + 1 , 0.010000 , 1 , 1 , 16.0.0.1 , 1024 , 48.0.0.1 , -> + 2 , 0.020000 , 1 , 2 , 16.0.0.1 , 1024 , 48.0.0.1 , <- + 3 , 2.010000 , 2 , 1 , 16.0.0.2 , 1024 , 48.0.0.2 , -> + 4 , 2.020000 , 2 , 2 , 16.0.0.2 , 1024 , 48.0.0.2 , <- + 5 , 3.010000 , 3 , 1 , 16.0.0.3 , 1024 , 48.0.0.3 , -> + 6 , 3.020000 , 3 , 2 , 16.0.0.3 , 1024 , 48.0.0.3 , <- + 7 , 4.010000 , 4 , 1 , 16.0.0.4 , 1024 , 48.0.0.4 , -> + 8 , 4.020000 , 4 , 2 , 16.0.0.4 , 1024 , 48.0.0.4 , <- + 9 , 5.010000 , 5 , 1 , 16.0.0.5 , 1024 , 48.0.0.5 , -> + 10 , 5.020000 , 5 , 2 , 16.0.0.5 , 1024 , 48.0.0.5 , <- + 11 , 6.010000 , 6 , 1 , 16.0.0.6 , 1024 , 48.0.0.6 , -> + 12 , 6.020000 , 6 , 2 , 16.0.0.6 , 1024 , 48.0.0.6 , <- + 13 , 7.010000 , 7 , 1 , 16.0.0.7 , 1024 , 48.0.0.7 , -> + 14 , 7.020000 , 7 , 2 , 16.0.0.7 , 1024 , 48.0.0.7 , <- + 15 , 8.010000 , 8 , 1 , 16.0.0.8 , 1024 , 48.0.0.8 , -> + 16 , 8.020000 , 8 , 2 , 16.0.0.8 , 1024 , 48.0.0.8 , <- + 17 , 9.010000 , 9 , 1 , 16.0.0.9 , 1024 , 48.0.0.9 , -> + 18 , 9.020000 , 9 , 2 , 16.0.0.9 , 1024 , 48.0.0.9 , <- + 19 , 10.010000 , a , 1 , 16.0.0.10 , 1024 , 48.0.0.10 , -> + 20 , 10.020000 , a , 2 , 16.0.0.10 , 1024 , 48.0.0.10 , <- +|================= + +where: +fid:: + Flow ID - different IDs for each flow. + +low-pkt-id:: + Packet ID within the flow. Numbering begins with 1. + +client_ip:: + Client IP address. + +client_port:: + Client IP port. + +server_ip:: + Server IP address. + +direction:: + Direction. "->" is client-to-server; "<-" is server-to-client. + + + +The following enlarges the CPS and reduces the duration. + +[source,python] +---- +$more cap2/dns_test.yaml +- duration : 1.0 <1> + generator : + distribution : "seq" + clients_start : "16.0.0.1" + clients_end : "16.0.0.255" + servers_start : "48.0.0.1" + servers_end : "48.0.0.255" + clients_per_gb : 201 + min_clients : 101 + dual_port_mask : "1.0.0.0" + tcp_aging : 1 + udp_aging : 1 + mac : [0x00,0x00,0x00,0x01,0x00,0x00] + cap_info : + - name: cap2/dns.pcap + cps : 10.0 <2> + ipg : 50000 <3> + rtt : 50000 + w : 1 +---- +<1> Duration is 1 second. +<2> CPS is 10.0. +<3> IPG is 50 msec. + + +Running this produces the following output: + +[source,bash] +---- +$./bp-sim-32-debug -f cap2/dns_test.yaml -o my.erf -v 3 +---- + +.Formated results +[format="csv",cols="1^,2^,1^,1^,1^,2^,1^,2^,1^", options="header"] +|================= +pkt,time sec,template,fid,flow-pkt-id,client_ip,client_port,server_ip ,desc + 1 , 0.010000 , 0 , 1 , 1 , 16.0.0.1 , 1024 , 48.0.0.1 , -> + 2 , 0.060000 , 0 , 1 , 2 , 16.0.0.1 , 1024 , 48.0.0.1 , <- + 3 , 0.210000 , 0 , 2 , 1 , 16.0.0.2 , 1024 , 48.0.0.2 , -> + 4 , 0.260000 , 0 , 2 , 2 , 16.0.0.2 , 1024 , 48.0.0.2 , <- + 5 , 0.310000 , 0 , 3 , 1 , 16.0.0.3 , 1024 , 48.0.0.3 , -> + 6 , 0.360000 , 0 , 3 , 2 , 16.0.0.3 , 1024 , 48.0.0.3 , <- + 7 , 0.410000 , 0 , 4 , 1 , 16.0.0.4 , 1024 , 48.0.0.4 , -> + 8 , 0.460000 , 0 , 4 , 2 , 16.0.0.4 , 1024 , 48.0.0.4 , <- + 9 , 0.510000 , 0 , 5 , 1 , 16.0.0.5 , 1024 , 48.0.0.5 , -> + 10 , 0.560000 , 0 , 5 , 2 , 16.0.0.5 , 1024 , 48.0.0.5 , <- + 11 , 0.610000 , 0 , 6 , 1 , 16.0.0.6 , 1024 , 48.0.0.6 , -> + 12 , 0.660000 , 0 , 6 , 2 , 16.0.0.6 , 1024 , 48.0.0.6 , <- + 13 , 0.710000 , 0 , 7 , 1 , 16.0.0.7 , 1024 , 48.0.0.7 , -> + 14 , 0.760000 , 0 , 7 , 2 , 16.0.0.7 , 1024 , 48.0.0.7 , <- + 15 , 0.810000 , 0 , 8 , 1 , 16.0.0.8 , 1024 , 48.0.0.8 , -> + 16 , 0.860000 , 0 , 8 , 2 , 16.0.0.8 , 1024 , 48.0.0.8 , <- + 17 , 0.910000 , 0 , 9 , 1 , 16.0.0.9 , 1024 , 48.0.0.9 , -> + 18 , 0.960000 , 0 , 9 , 2 , 16.0.0.9 , 1024 , 48.0.0.9 , <- + 19 , 1.010000 , 0 , a , 1 , 16.0.0.10 , 1024 , 48.0.0.10 , -> + 20 , 1.060000 , 0 , a , 2 , 16.0.0.10 , 1024 , 48.0.0.10 , <- +|================= + +Use the following to display the output as a chart, with: +x axis: time (seconds) +y axis: flow ID +The output indicates that there are 10 flows in 1 second, as expected, and the IPG is 50 msec + +//TBD: not sure what the "+ +" means ==> [hh] Ascii Doc break page + +ifndef::backend-docbook[] ++++++++++++++++++++++++++++++++++ +<div id="chart1" style="font : 10px sans-serif"; ></div> + +<script> +var dns_data=[ +[ 0.010000 , 1 , 0 , 1 ], +[ 0.060000 , 1 , 0 , 2 ], +[ 0.210000 , 2 , 0 , 1 ], +[ 0.260000 , 2 , 0 , 2 ], +[ 0.310000 , 3 , 0 , 1 ], +[ 0.360000 , 3 , 0 , 2 ], +[ 0.410000 , 4 , 0 , 1 ], +[ 0.460000 , 4 , 0 , 2 ], +[ 0.510000 , 5 , 0 , 1 ], +[ 0.560000 , 5 , 0 , 2 ], +[ 0.610000 , 6 , 0 , 1 ], +[ 0.660000 , 6 , 0 , 2 ], +[ 0.710000 , 7 , 0 , 1 ], +[ 0.760000 , 7 , 0 , 2 ], +[ 0.810000 , 8 , 0 , 1 ], +[ 0.860000 , 8 , 0 , 2 ], +[ 0.910000 , 9 , 0 , 1 ], +[ 0.960000 , 9 , 0 , 2 ], +[ 1.010000 , 10 , 0 , 1 ], +[ 1.060000 , 10 , 0 , 2 ], +]; +chart("#chart1",dns_data,["dns"],"time-sec","flow-id"); +</script> ++++++++++++++++++++++++++++++++++ +endif::backend-docbook[] + +[NOTE] +===================================================================== +Note the gap in the second flow generation. This is an expected schedular artifact and does not have an effect. +===================================================================== + +=== DNS, take flow IPG from pcap file + +In the following example the IPG is taken from the IPG itself. + +[source,python] +---- +- duration : 1.0 + generator : + distribution : "seq" + clients_start : "16.0.0.1" + clients_end : "16.0.0.255" + servers_start : "48.0.0.1" + servers_end : "48.0.0.255" + clients_per_gb : 201 + min_clients : 101 + dual_port_mask : "1.0.0.0" + tcp_aging : 0 + udp_aging : 0 + mac : [0x00,0x00,0x00,0x01,0x00,0x00] + cap_ipg : true <1> + #cap_ipg_min : 30 + #cap_override_ipg : 200 + cap_info : + - name: cap2/dns.pcap + cps : 10.0 + ipg : 10000 + rtt : 10000 + w : 1 +---- +<1> IPG is taken from pcap. + + +.dns ipg from pcap file +[format="csv",cols="1^,2^,1^,1^,1^,2^,1^,2^,1^", options="header"] +|================= +pkt,time sec,template,fid,flow-pkt-id,client_ip,client_port,server_ip ,desc + 1 , 0.010000 , 0 , 1 , 1 , 16.0.0.1 , 1024 , 48.0.0.1 , -> + 2 , 0.030944 , 0 , 1 , 2 , 16.0.0.1 , 1024 , 48.0.0.1 , <- + 3 , 0.210000 , 0 , 2 , 1 , 16.0.0.2 , 1024 , 48.0.0.2 , -> + 4 , 0.230944 , 0 , 2 , 2 , 16.0.0.2 , 1024 , 48.0.0.2 , <- + 5 , 0.310000 , 0 , 3 , 1 , 16.0.0.3 , 1024 , 48.0.0.3 , -> + 6 , 0.330944 , 0 , 3 , 2 , 16.0.0.3 , 1024 , 48.0.0.3 , <- + 7 , 0.410000 , 0 , 4 , 1 , 16.0.0.4 , 1024 , 48.0.0.4 , -> + 8 , 0.430944 , 0 , 4 , 2 , 16.0.0.4 , 1024 , 48.0.0.4 , <- + 9 , 0.510000 , 0 , 5 , 1 , 16.0.0.5 , 1024 , 48.0.0.5 , -> + 10 , 0.530944 , 0 , 5 , 2 , 16.0.0.5 , 1024 , 48.0.0.5 , <- + 11 , 0.610000 , 0 , 6 , 1 , 16.0.0.6 , 1024 , 48.0.0.6 , -> + 12 , 0.630944 , 0 , 6 , 2 , 16.0.0.6 , 1024 , 48.0.0.6 , <- + 13 , 0.710000 , 0 , 7 , 1 , 16.0.0.7 , 1024 , 48.0.0.7 , -> + 14 , 0.730944 , 0 , 7 , 2 , 16.0.0.7 , 1024 , 48.0.0.7 , <- + 15 , 0.810000 , 0 , 8 , 1 , 16.0.0.8 , 1024 , 48.0.0.8 , -> + 16 , 0.830944 , 0 , 8 , 2 , 16.0.0.8 , 1024 , 48.0.0.8 , <- + 17 , 0.910000 , 0 , 9 , 1 , 16.0.0.9 , 1024 , 48.0.0.9 , -> + 18 , 0.930944 , 0 , 9 , 2 , 16.0.0.9 , 1024 , 48.0.0.9 , <- + 19 , 1.010000 , 0 , a , 1 , 16.0.0.10 , 1024 , 48.0.0.10 , -> + 20 , 1.030944 , 0 , a , 2 , 16.0.0.10 , 1024 , 48.0.0.10 , <- +|================= + +In this example, the IPG was taken from the pcap file, which is closer to 20 msec and not 50 msec (taken from the configuration file). + +[source,python] +---- + #cap_ipg_min : 30 <1> + #cap_override_ipg : 200 <2> +---- +<1> Sets the minimum IPG (microseconds) which should be override : ( if (pkt_ipg<cap_ipg_min) { pkt_ipg = cap_override_ipg } ) +<2> Value to override (microseconds). + + +ifndef::backend-docbook[] ++++++++++++++++++++++++++++++++++ +<div id="chart2" style="font : 10px sans-serif"; ></div> + +<script> +var chart2_data=[ +[ 0.010000 , 1 , 0 , 1 ], +[ 0.030944 , 1 , 0 , 2 ], +[ 0.210000 , 2 , 0 , 1 ], +[ 0.230944 , 2 , 0 , 2 ], +[ 0.310000 , 3 , 0 , 1 ], +[ 0.330944 , 3 , 0 , 2 ], +[ 0.410000 , 4 , 0 , 1 ], +[ 0.430944 , 4 , 0 , 2 ], +[ 0.510000 , 5 , 0 , 1 ], +[ 0.530944 , 5 , 0 , 2 ], +[ 0.610000 , 6 , 0 , 1 ], +[ 0.630944 , 6 , 0 , 2 ], +[ 0.710000 , 7 , 0 , 1 ], +[ 0.730944 , 7 , 0 , 2 ], +[ 0.810000 , 8 , 0 , 1 ], +[ 0.830944 , 8 , 0 , 2 ], +[ 0.910000 , 9 , 0 , 1 ], +[ 0.930944 , 9 , 0 , 2 ], +[ 1.010000 , 10 , 0 , 1 ], +[ 1.030944 , 10 , 0 , 2 ], +]; +chart("#chart2",chart2_data,["dns"],"time-sec","flow-id"); +</script> ++++++++++++++++++++++++++++++++++ +endif::backend-docbook[] + + +=== DNS, Set one server ip + +In this example the server IP is taken from the template. + +[source,python] +---- +- duration : 10.0 + generator : + distribution : "seq" + clients_start : "16.0.0.1" + clients_end : "16.0.1.255" + servers_start : "48.0.0.1" + servers_end : "48.0.0.255" + clients_per_gb : 201 + min_clients : 101 + dual_port_mask : "1.0.0.0" + tcp_aging : 1 + udp_aging : 1 + mac : [0x00,0x00,0x00,0x01,0x00,0x00] + cap_ipg : true + #cap_ipg_min : 30 + #cap_override_ipg : 200 + cap_info : + - name: cap2/dns.pcap + cps : 1.0 + ipg : 10000 + rtt : 10000 + server_addr : "48.0.0.7" <1> + one_app_server : true <2> + w : 1 +---- +<1> All templates will use the same server. +<2> Must be set to "true". + + +.dns ipg from pcap file +[format="csv",cols="1^,2^,1^,1^,2^,1^,2^,1^", options="header"] +|================= +pkt,time sec,fid,flow-pkt-id,client_ip,client_port,server_ip ,desc + 1 , 0.010000 , 1 , 1 , 16.0.0.1 , 1024 , 48.0.0.7 , -> + 2 , 0.030944 , 1 , 2 , 16.0.0.1 , 1024 , 48.0.0.7 , <- + 3 , 2.010000 , 2 , 1 , 16.0.0.2 , 1024 , 48.0.0.7 , -> + 4 , 2.030944 , 2 , 2 , 16.0.0.2 , 1024 , 48.0.0.7 , <- + 5 , 3.010000 , 3 , 1 , 16.0.0.3 , 1024 , 48.0.0.7 , -> + 6 , 3.030944 , 3 , 2 , 16.0.0.3 , 1024 , 48.0.0.7 , <- + 7 , 4.010000 , 4 , 1 , 16.0.0.4 , 1024 , 48.0.0.7 , -> + 8 , 4.030944 , 4 , 2 , 16.0.0.4 , 1024 , 48.0.0.7 , <- + 9 , 5.010000 , 5 , 1 , 16.0.0.5 , 1024 , 48.0.0.7 , -> + 10 , 5.030944 , 5 , 2 , 16.0.0.5 , 1024 , 48.0.0.7 , <- + 11 , 6.010000 , 6 , 1 , 16.0.0.6 , 1024 , 48.0.0.7 , -> + 12 , 6.030944 , 6 , 2 , 16.0.0.6 , 1024 , 48.0.0.7 , <- + 13 , 7.010000 , 7 , 1 , 16.0.0.7 , 1024 , 48.0.0.7 , -> + 14 , 7.030944 , 7 , 2 , 16.0.0.7 , 1024 , 48.0.0.7 , <- + 15 , 8.010000 , 8 , 1 , 16.0.0.8 , 1024 , 48.0.0.7 , -> + 16 , 8.030944 , 8 , 2 , 16.0.0.8 , 1024 , 48.0.0.7 , <- + 17 , 9.010000 , 9 , 1 , 16.0.0.9 , 1024 , 48.0.0.7 , -> + 18 , 9.030944 , 9 , 2 , 16.0.0.9 , 1024 , 48.0.0.7 , <- + 19 , 10.010000 , a , 1 , 16.0.0.10 , 1024 , 48.0.0.7 , -> + 20 , 10.030944 , a , 2 , 16.0.0.10 , 1024 , 48.0.0.7 , <- +|================= + + +=== DNS, Reduce the number of clients +//TBD: clarify + +[source,python] +---- +- duration : 10.0 + generator : + distribution : "seq" + clients_start : "16.0.0.1" <1> + clients_end : "16.0.0.1" + servers_start : "48.0.0.1" + servers_end : "48.0.0.3" + clients_per_gb : 201 + min_clients : 101 + dual_port_mask : "1.0.0.0" + tcp_aging : 1 + udp_aging : 1 + mac : [0x00,0x00,0x00,0x01,0x00,0x00] + cap_ipg : true + #cap_ipg_min : 30 + #cap_override_ipg : 200 + cap_info : + - name: cap2/dns.pcap + cps : 1.0 + ipg : 10000 + rtt : 10000 + w : 1 +---- +<1> Only one client. + + +.dns ipg from pcap file +[format="csv",cols="1^,2^,1^,1^,2^,1^,2^,1^", options="header"] +|================= +pkt,time sec,fid,flow-pkt-id,client_ip,client_port,server_ip ,desc + 1 , 0.010000 , 1 , 1 , 16.0.0.1 , 1024 , 48.0.0.1 , -> + 2 , 0.030944 , 1 , 2 , 16.0.0.1 , 1024 , 48.0.0.1 , <- + 3 , 2.010000 , 2 , 1 , 16.0.0.1 , 1025 , 48.0.0.2 , -> + 4 , 2.030944 , 2 , 2 , 16.0.0.1 , 1025 , 48.0.0.2 , <- + 5 , 3.010000 , 3 , 1 , 16.0.0.1 , 1026 , 48.0.0.3 , -> + 6 , 3.030944 , 3 , 2 , 16.0.0.1 , 1026 , 48.0.0.3 , <- + 7 , 4.010000 , 4 , 1 , 16.0.0.1 , 1027 , 48.0.0.4 , -> + 8 , 4.030944 , 4 , 2 , 16.0.0.1 , 1027 , 48.0.0.4 , <- + 9 , 5.010000 , 5 , 1 , 16.0.0.1 , 1028 , 48.0.0.5 , -> + 10 , 5.030944 , 5 , 2 , 16.0.0.1 , 1028 , 48.0.0.5 , <- + 11 , 6.010000 , 6 , 1 , 16.0.0.1 , 1029 , 48.0.0.6 , -> + 12 , 6.030944 , 6 , 2 , 16.0.0.1 , 1029 , 48.0.0.6 , <- + 13 , 7.010000 , 7 , 1 , 16.0.0.1 , 1030 , 48.0.0.7 , -> + 14 , 7.030944 , 7 , 2 , 16.0.0.1 , 1030 , 48.0.0.7 , <- + 15 , 8.010000 , 8 , 1 , 16.0.0.1 , 1031 , 48.0.0.8 , -> + 16 , 8.030944 , 8 , 2 , 16.0.0.1 , 1031 , 48.0.0.8 , <- + 17 , 9.010000 , 9 , 1 , 16.0.0.1 , 1032 , 48.0.0.9 , -> + 18 , 9.030944 , 9 , 2 , 16.0.0.1 , 1032 , 48.0.0.9 , <- + 19 , 10.010000 , a , 1 , 16.0.0.1 , 1033 , 48.0.0.10 , -> + 20 , 10.030944 , a , 2 , 16.0.0.1 , 1033 , 48.0.0.10 , <- +|================= + +In this case there is only one client so only ports are used to distinc the flows +you need to be sure that you have enogth free sockets when running TRex in high rates + +[source,python] +---- + Active-flows : 0 Clients : 1 <1> Socket-util : 0.0000 % <2> + Open-flows : 1 Servers : 254 Socket : 1 Socket/Clients : 0.0 + drop-rate : 0.00 bps +---- +<1> Number of clients +<2> sockets utilization (should be lowwer than 20%, elarge the number of clients in case of an issue). + +=== DNS, W=1 + +`w` is a tunable to the IP clients/servers generator. w=1 is the default behavior. +Setting `w=2` configures a burst of two allocations from the same client. See the following example. + +[source,python] +---- +- duration : 10.0 + generator : + distribution : "seq" + clients_start : "16.0.0.1" + clients_end : "16.0.0.10" + servers_start : "48.0.0.1" + servers_end : "48.0.0.3" + clients_per_gb : 201 + min_clients : 101 + dual_port_mask : "1.0.0.0" + tcp_aging : 1 + udp_aging : 1 + mac : [0x00,0x00,0x00,0x01,0x00,0x00] + cap_ipg : true + #cap_ipg_min : 30 + #cap_override_ipg : 200 + cap_info : + - name: cap2/dns.pcap + cps : 1.0 + ipg : 10000 + rtt : 10000 + w : 2 <1> +---- +<1> Two clients will be allocated from the same template. + + +.DNS ipg from pcap file +[format="csv",cols="1^,2^,1^,1^,2^,1^,2^,1^", options="header"] +|================= +pkt,time sec,fid,flow-pkt-id,client_ip,client_port,server_ip ,desc + 1 , 0.010000 , 1 , 1 , 16.0.0.1 , 1024 , 48.0.0.1 , -> + 2 , 0.030944 , 1 , 2 , 16.0.0.1 , 1024 , 48.0.0.1 , <- + 3 , 2.010000 , 2 , 1 , 16.0.0.1 , 1025 , 48.0.0.1 , -> + 4 , 2.030944 , 2 , 2 , 16.0.0.1 , 1025 , 48.0.0.1 , <- + 5 , 3.010000 , 3 , 1 , 16.0.0.2 , 1024 , 48.0.0.2 , -> + 6 , 3.030944 , 3 , 2 , 16.0.0.2 , 1024 , 48.0.0.2 , <- + 7 , 4.010000 , 4 , 1 , 16.0.0.2 , 1025 , 48.0.0.2 , -> + 8 , 4.030944 , 4 , 2 , 16.0.0.2 , 1025 , 48.0.0.2 , <- + 9 , 5.010000 , 5 , 1 , 16.0.0.3 , 1024 , 48.0.0.3 , -> + 10 , 5.030944 , 5 , 2 , 16.0.0.3 , 1024 , 48.0.0.3 , <- + 11 , 6.010000 , 6 , 1 , 16.0.0.3 , 1025 , 48.0.0.3 , -> + 12 , 6.030944 , 6 , 2 , 16.0.0.3 , 1025 , 48.0.0.3 , <- + 13 , 7.010000 , 7 , 1 , 16.0.0.4 , 1024 , 48.0.0.4 , -> + 14 , 7.030944 , 7 , 2 , 16.0.0.4 , 1024 , 48.0.0.4 , <- + 15 , 8.010000 , 8 , 1 , 16.0.0.4 , 1025 , 48.0.0.4 , -> + 16 , 8.030944 , 8 , 2 , 16.0.0.4 , 1025 , 48.0.0.4 , <- + 17 , 9.010000 , 9 , 1 , 16.0.0.5 , 1024 , 48.0.0.5 , -> + 18 , 9.030944 , 9 , 2 , 16.0.0.5 , 1024 , 48.0.0.5 , <- + 19 , 10.010000 , a , 1 , 16.0.0.5 , 1025 , 48.0.0.5 , -> + 20 , 10.030944 , a , 2 , 16.0.0.5 , 1025 , 48.0.0.5 , <- +|================= + + +=== Mixing HTTP and DNS template + +The following example combines elements of HTTP and DNS templates: + + +[source,python] +---- +- duration : 1.0 + generator : + distribution : "seq" + clients_start : "16.0.0.1" + clients_end : "16.0.0.10" + servers_start : "48.0.0.1" + servers_end : "48.0.0.3" + clients_per_gb : 201 + min_clients : 101 + dual_port_mask : "1.0.0.0" + tcp_aging : 1 + udp_aging : 1 + mac : [0x00,0x00,0x00,0x01,0x00,0x00] + cap_ipg : true + cap_info : + - name: cap2/dns.pcap + cps : 10.0 <1> + ipg : 10000 + rtt : 10000 + w : 1 + - name: avl/delay_10_http_browsing_0.pcap + cps : 2.0 <1> + ipg : 10000 + rtt : 10000 + w : 1 + +---- +<1> Same CPS for both templates. + +This creates the following output: + +.DNS ipg from pcap file +[format="csv",cols="1^,2^,1^,1^,1^,2^,1^,2^,1^", options="header"] +|================= +pkt,time sec,template,fid,flow-pkt-id,client_ip,client_port,server_ip ,desc + 1 , 0.010000 , 0 , 1 , 1 , 16.0.0.1 , 1024 , 48.0.0.1 , -> + 2 , 0.030944 , 0 , 1 , 2 , 16.0.0.1 , 1024 , 48.0.0.1 , <- + 3 , 0.093333 , 1 , 2 , 1 , 16.0.0.2 , 1024 , 48.0.0.2 , -> + 4 , 0.104362 , 1 , 2 , 2 , 16.0.0.2 , 1024 , 48.0.0.2 , <- + 5 , 0.115385 , 1 , 2 , 3 , 16.0.0.2 , 1024 , 48.0.0.2 , -> + 6 , 0.115394 , 1 , 2 , 4 , 16.0.0.2 , 1024 , 48.0.0.2 , -> + 7 , 0.126471 , 1 , 2 , 5 , 16.0.0.2 , 1024 , 48.0.0.2 , <- + 8 , 0.126484 , 1 , 2 , 6 , 16.0.0.2 , 1024 , 48.0.0.2 , <- + 9 , 0.137530 , 1 , 2 , 7 , 16.0.0.2 , 1024 , 48.0.0.2 , -> + 10 , 0.148609 , 1 , 2 , 8 , 16.0.0.2 , 1024 , 48.0.0.2 , <- + 11 , 0.148621 , 1 , 2 , 9 , 16.0.0.2 , 1024 , 48.0.0.2 , <- + 12 , 0.148635 , 1 , 2 , 10 , 16.0.0.2 , 1024 , 48.0.0.2 , <- + 13 , 0.159663 , 1 , 2 , 11 , 16.0.0.2 , 1024 , 48.0.0.2 , -> + 14 , 0.170750 , 1 , 2 , 12 , 16.0.0.2 , 1024 , 48.0.0.2 , <- + 15 , 0.170762 , 1 , 2 , 13 , 16.0.0.2 , 1024 , 48.0.0.2 , <- + 16 , 0.170774 , 1 , 2 , 14 , 16.0.0.2 , 1024 , 48.0.0.2 , <- + 17 , 0.176667 , 0 , 3 , 1 , 16.0.0.3 , 1024 , 48.0.0.3 , -> + 18 , 0.181805 , 1 , 2 , 15 , 16.0.0.2 , 1024 , 48.0.0.2 , -> + 19 , 0.181815 , 1 , 2 , 16 , 16.0.0.2 , 1024 , 48.0.0.2 , -> + 20 , 0.192889 , 1 , 2 , 17 , 16.0.0.2 , 1024 , 48.0.0.2 , <- + 21 , 0.192902 , 1 , 2 , 18 , 16.0.0.2 , 1024 , 48.0.0.2 , <- +|================= + +Template_id:: + 0: DNS template + 1: HTTP template + + +ifndef::backend-docbook[] ++++++++++++++++++++++++++++++++++ +<div id="chart3" style="font : 10px sans-serif"; ></div> + +<script> +var chart3_data=[ +[ 0.010000 , 1 , 0 , 1 ], +[ 0.030944 , 1 , 0 , 2 ], +[ 0.093333 , 2 , 1 , 1 ], +[ 0.104362 , 2 , 1 , 2 ], +[ 0.115385 , 2 , 1 , 3 ], +[ 0.115394 , 2 , 1 , 4 ], +[ 0.126471 , 2 , 1 , 5 ], +[ 0.126484 , 2 , 1 , 6 ], +[ 0.137530 , 2 , 1 , 7 ], +[ 0.148609 , 2 , 1 , 8 ], +[ 0.148621 , 2 , 1 , 9 ], +[ 0.148635 , 2 , 1 , 10 ], +[ 0.159663 , 2 , 1 , 11 ], +[ 0.170750 , 2 , 1 , 12 ], +[ 0.170762 , 2 , 1 , 13 ], +[ 0.170774 , 2 , 1 , 14 ], +[ 0.176667 , 3 , 0 , 1 ], +[ 0.181805 , 2 , 1 , 15 ], +[ 0.181815 , 2 , 1 , 16 ], +[ 0.192889 , 2 , 1 , 17 ], +[ 0.192902 , 2 , 1 , 18 ], +[ 0.192914 , 2 , 1 , 19 ], +[ 0.192927 , 2 , 1 , 20 ], +[ 0.192939 , 2 , 1 , 21 ], +[ 0.192951 , 2 , 1 , 22 ], +[ 0.197611 , 3 , 0 , 2 ], +[ 0.203944 , 2 , 1 , 23 ], +[ 0.203950 , 2 , 1 , 24 ], +[ 0.203956 , 2 , 1 , 25 ], +[ 0.214620 , 2 , 1 , 26 ], +[ 0.214633 , 2 , 1 , 27 ], +[ 0.214645 , 2 , 1 , 28 ], +[ 0.214658 , 2 , 1 , 29 ], +[ 0.214671 , 2 , 1 , 30 ], +[ 0.214682 , 2 , 1 , 31 ], +[ 0.214695 , 2 , 1 , 32 ], +[ 0.214707 , 2 , 1 , 33 ], +[ 0.225264 , 2 , 1 , 34 ], +[ 0.225269 , 2 , 1 , 35 ], +[ 0.225274 , 2 , 1 , 36 ], +[ 0.225279 , 2 , 1 , 37 ], +[ 0.260000 , 4 , 0 , 1 ], +[ 0.280944 , 4 , 0 , 2 ], +[ 0.343333 , 5 , 0 , 1 ], +[ 0.364277 , 5 , 0 , 2 ], +[ 0.426667 , 6 , 0 , 1 ], +[ 0.447611 , 6 , 0 , 2 ], +[ 0.593333 , 7 , 0 , 1 ], +[ 0.614277 , 7 , 0 , 2 ], +[ 0.676667 , 8 , 1 , 1 ], +[ 0.687696 , 8 , 1 , 2 ], +[ 0.698719 , 8 , 1 , 3 ], +[ 0.698728 , 8 , 1 , 4 ], +[ 0.709805 , 8 , 1 , 5 ], +[ 0.709818 , 8 , 1 , 6 ], +[ 0.720864 , 8 , 1 , 7 ], +[ 0.731943 , 8 , 1 , 8 ], +[ 0.731955 , 8 , 1 , 9 ], +[ 0.731968 , 8 , 1 , 10 ], +[ 0.742997 , 8 , 1 , 11 ], +[ 0.754084 , 8 , 1 , 12 ], +[ 0.754096 , 8 , 1 , 13 ], +[ 0.754108 , 8 , 1 , 14 ], +[ 0.760000 , 9 , 0 , 1 ], +[ 0.765139 , 8 , 1 , 15 ], +[ 0.765148 , 8 , 1 , 16 ], +[ 0.776223 , 8 , 1 , 17 ], +[ 0.776236 , 8 , 1 , 18 ], +[ 0.776248 , 8 , 1 , 19 ], +[ 0.776261 , 8 , 1 , 20 ], +[ 0.776273 , 8 , 1 , 21 ], +[ 0.776285 , 8 , 1 , 22 ], +[ 0.780944 , 9 , 0 , 2 ], +[ 0.787278 , 8 , 1 , 23 ], +[ 0.787284 , 8 , 1 , 24 ], +[ 0.787289 , 8 , 1 , 25 ], +[ 0.797954 , 8 , 1 , 26 ], +[ 0.797967 , 8 , 1 , 27 ], +[ 0.797979 , 8 , 1 , 28 ], +[ 0.797992 , 8 , 1 , 29 ], +[ 0.798004 , 8 , 1 , 30 ], +[ 0.798016 , 8 , 1 , 31 ], +[ 0.798029 , 8 , 1 , 32 ], +[ 0.798041 , 8 , 1 , 33 ], +[ 0.808598 , 8 , 1 , 34 ], +[ 0.808603 , 8 , 1 , 35 ], +[ 0.808608 , 8 , 1 , 36 ], +[ 0.808613 , 8 , 1 , 37 ], +[ 0.843333 , 10 , 0 , 1 ], +[ 0.864277 , 10 , 0 , 2 ], +[ 0.926667 , 11 , 0 , 1 ], +[ 0.947611 , 11 , 0 , 2 ], +[ 1.010000 , 12 , 0 , 1 ], +[ 1.030944 , 12 , 0 , 2 ], +]; +chart("#chart3",chart3_data,["dns","http"],"time-sec","flow-id"); +</script> ++++++++++++++++++++++++++++++++++ +endif::backend-docbook[] + +The output above illustrates two HTTP flows and ten DNS flows in 1 second, as expected. + + +=== SFR traffic YAML + +SFR traffic includes a combination of traffic templates. This traffic mix in the example below was defined by SFR France. +This SFR traffic profile is used as our traffic profile for our ASR1k/ISR-G2 benchmark. It is also possible to use EMIX instead of IMIX traffic. + +The traffic was recorded from a Spirent C100 with a Pagent that introduce 10msec delay from client and server side. + +[source,python] +---- +- duration : 0.1 + generator : + distribution : "seq" + clients_start : "16.0.0.1" + clients_end : "16.0.1.255" + servers_start : "48.0.0.1" + servers_end : "48.0.20.255" + clients_per_gb : 201 + min_clients : 101 + dual_port_mask : "1.0.0.0" + tcp_aging : 0 + udp_aging : 0 + mac : [0x0,0x0,0x0,0x1,0x0,0x00] + cap_ipg : true + cap_info : + - name: avl/delay_10_http_get_0.pcap + cps : 404.52 + ipg : 10000 + rtt : 10000 + w : 1 + - name: avl/delay_10_http_post_0.pcap + cps : 404.52 + ipg : 10000 + rtt : 10000 + w : 1 + - name: avl/delay_10_https_0.pcap + cps : 130.8745 + ipg : 10000 + rtt : 10000 + w : 1 + - name: avl/delay_10_http_browsing_0.pcap + cps : 709.89 + ipg : 10000 + rtt : 10000 + w : 1 + - name: avl/delay_10_exchange_0.pcap + cps : 253.81 + ipg : 10000 + rtt : 10000 + w : 1 + - name: avl/delay_10_mail_pop_0.pcap + cps : 4.759 + ipg : 10000 + rtt : 10000 + w : 1 + - name: avl/delay_10_mail_pop_1.pcap + cps : 4.759 + ipg : 10000 + rtt : 10000 + w : 1 + - name: avl/delay_10_mail_pop_2.pcap + cps : 4.759 + ipg : 10000 + rtt : 10000 + w : 1 + - name: avl/delay_10_oracle_0.pcap + cps : 79.3178 + ipg : 10000 + rtt : 10000 + w : 1 + - name: avl/delay_10_rtp_160k_full.pcap + cps : 2.776 + ipg : 10000 + rtt : 10000 + w : 1 + one_app_server : false + plugin_id : 1 <2> + - name: avl/delay_10_rtp_250k_full.pcap + cps : 1.982 + ipg : 10000 + rtt : 10000 + w : 1 + one_app_server : false + plugin_id : 1 + - name: avl/delay_10_smtp_0.pcap + cps : 7.3369 + ipg : 10000 + rtt : 10000 + w : 1 + - name: avl/delay_10_smtp_1.pcap + cps : 7.3369 + ipg : 10000 + rtt : 10000 + w : 1 + - name: avl/delay_10_smtp_2.pcap + cps : 7.3369 + ipg : 10000 + rtt : 10000 + w : 1 + - name: avl/delay_10_video_call_0.pcap + cps : 11.8976 + ipg : 10000 + rtt : 10000 + w : 1 + one_app_server : false + - name: avl/delay_10_sip_video_call_full.pcap + cps : 29.347 + ipg : 10000 + rtt : 10000 + w : 1 + plugin_id : 2 <1> + one_app_server : false + - name: avl/delay_10_citrix_0.pcap + cps : 43.6248 + ipg : 10000 + rtt : 10000 + w : 1 + - name: avl/delay_10_dns_0.pcap + cps : 1975.015 + ipg : 10000 + rtt : 10000 + w : 1 + wlength : 1 +---- +<1> Plugin for SIP protocol, used to replace the IP/port in the control flow base on the data-flow. +//TBD: I'm placing your note into a TBD - (what are plugins should have a seperate chapter) +<2> Plugin for RTSP protocol used to replace the IP/port in the control flow base on the data-flow. + + + +ifndef::backend-docbook[] ++++++++++++++++++++++++++++++++++ +<div id="chart4" style="font : 10px sans-serif"; ></div> + +<script> + +var sfr_data=[ +[ 0.010000 , 1 , 0 , 1 ], +[ 0.010245 , 2 , 1 , 1 ], +[ 0.010490 , 3 , 2 , 1 ], +[ 0.010735 , 4 , 3 , 1 ], +[ 0.010979 , 5 , 4 , 1 ], +[ 0.011224 , 6 , 5 , 1 ], +[ 0.011469 , 7 , 6 , 1 ], +[ 0.011714 , 8 , 7 , 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"mail_pop_2", + "oracle_0", + "rtp_160k", + "rtp_250k", + "smtp_0", + "smtp_1", + "smtp_2", + "video_call", + "sip_video_call_full", + "citrix_0", + "dns_0"]; + +chart("#chart4",sfr_data,sfr_names,"time-sec","flow-id"); +</script> ++++++++++++++++++++++++++++++++++ +endif::backend-docbook[] + + +=== TRex command line + +TRex commands typically include the following main arguments, but only `-f` and `-d` are required. + +[source,bash] +---- +$.sudo /t-rex-64 -f [traffic_yaml] -m [muti] -d [duration] -l [Hz=1000] -c [cores] +---- + +*-f=TRAFIC_YAML_FILE*:: + YAML traffic configuration file. + +*-m=MUL*:: + Factor for bandwidth (multiplies the CPS of each template by this value). + +*-d=DURATION*:: + Duration of the test (sec). Default: 0 + +*-l=HZ*:: + Rate (Hz) for running the latency daemon. Example: -l 1000 runs 1000 pkt/sec from each interface. A value of zero (0) disables the latency check. + +*-c=CORES*:: + Number of cores. Use 4 for TRex 40Gb/sec. Monitor the CPU% of TRex - it should be ~50%. + + +The full reference can be found xref:cml-line[here] + +==== TRex command line examples + +.Simple HTTP 1Gb/sec for 100 sec +[source,bash] +---- +$.sudo /t-rex-64 -f cap2/simple_http.yaml -c 4 -m 100 -d 100 +---- + +.Simple HTTP 1Gb/sec with latency for 100 sec +[source,bash] +---- +$.sudo /t-rex-64 -f cap2/simple_http.yaml -c 4 -m 100 -d 100 -l 1000 +---- + +.SFR 35Gb/sec traffic +[source,bash] +---- +$.sudo /t-rex-64 -f avl/sfr_delay_10_1g.yaml -c 4 -m 35 -d 100 -p +---- + +.SFR 20Gb/sec traffic with latency +[source,bash] +---- +$.sudo /t-rex-64 -f avl/sfr_delay_10_1g.yaml -c 4 -m 20 -d 100 -l 1000 +---- + +.SFR ipv6 20Gb/sec traffic with latency +[source,bash] +---- +$.sudo /t-rex-64 -f avl/sfr_delay_10_1g_no_bundeling.yaml -c 4 -m 20 -d 100 -l 1000 --ipv6 +---- + +.Simple HTTP 1Gb/sec with NAT translation support +[source,bash] +---- +$.sudo /t-rex-64 -f cap2/simple_http.yaml -c 4 -m 100 -d 100 -l 1000 --learn +---- + +.IMIX 1G/sec ,1600 flows +[source,bash] +---- +$.sudo /t-rex-64 -f cap2/imix_fast_1g.yaml -c 4 -m 1 -d 100 -l 1000 +---- + +.IMIX 1Gb/sec,100K flows +[source,bash] +---- +$.sudo /t-rex-64 -f cap2/imix_fast_1g_100k.yaml -c 4 -m 1 -d 100 -l 1000 +---- + +.64bytes ~1Gb/sec,1600 flows +[source,bash] +---- +$.sudo /t-rex-64 -f cap2/imix_64.yaml -c 4 -m 1 -d 100 -l 1000 +---- + +=== Traffic profiles provided with the TRex package + + +[options="header",cols="1,3",width="100%"] +|================= +| name | description +| cap2/dns.yaml | simple dns pcap file +| cap2/http_simple.yaml | simple http cap file +| avl/sfr_delay_10_1g_no_bundeling.yaml | sfr traffic profile capture from Avalanche - Spirent without bundeling support with RTT=10msec ( a delay machine), this can be used with --ipv6 and --learn mode +| avl/sfr_delay_10_1g.yaml | head-end sfr traffic profile capture from Avalanche - Spirent with bundeling support with RTT=10msec ( a delay machine), it is normalized to 1Gb/sec for m=1 +| avl/sfr_branch_profile_delay_10.yaml | branch sfr profile capture from Avalanche - Spirent with bundeling support with RTT=10msec it, is normalized to 1Gb/sec for m=1 +| cap2/imix_fast_1g.yaml | imix profile with 1600 flows normalized to 1Gb/sec. +| cap2/imix_fast_1g_100k_flows.yaml | imix profile with 100k flows normalized to 1Gb/sec. +| cap2/imix_64.yaml | 64byte UDP packets profile +|======================== + + +=== Stateless traffic generation + +With this feature you can "repeat" flows and create stateless, *IXIA* like streams. +After injecting the number of flows defined by `limit`, TRex repeats the same flows. If all template has a `limit` the CPS will be zero after a time as there are no new flows after the first iteration. + +*IMIX support:*:: +Example: +[source,bash] +---- +$sudo ./t-rex-64 -f cap2/imix_64.yaml -d 1000 -m 40000 -c 4 -p +---- + +[WARNING] +===================================================================== +The *-p* is used here to send the client side packets from both interfaces. +(Normally it is sent only from client ports only.) +Typically, the traffic client side is sent from the TRex client port; with this option, the port is selected by the client IP. +All the flow packets are sent from the same interface. This may create an issue with routing, as the client's IP will be sent from the server interface. PBR router configuration solves this issue but cannot be used in all cases. So use this `-p` option carefully. +===================================================================== + + +.imix_64.yaml +[source,python] +---- + cap_info : + - name: cap2/udp_64B.pcap + cps : 1000.0 + ipg : 10000 + rtt : 10000 + w : 1 + limit : 1000 <1> +---- +<1> Repeats the flows in a loop, generating 1000 flows from this type. In this example, udp_64B includes only one packet. + +The cap file "cap2/udp_64B.pcap" includes only one packet of 64B. This configuration file creates 1000 flows that will be repeated as follows: +f1 , f2 , f3 .... f1000 , f1 , f2 ... +where the PPS == CPS for -m=1. In this case it will have PPS=1000 in sec for -m==1. +It is possible to mix stateless templates and stateful templates. + +.Imix YAML `cap2/imix_fast_1g.yaml` example +[source,python] +---- +- duration : 3 + generator : + distribution : "seq" + clients_start : "16.0.0.1" + clients_end : "16.0.0.255" + servers_start : "48.0.0.1" + servers_end : "48.0.255.255" + clients_per_gb : 201 + min_clients : 101 + dual_port_mask : "1.0.0.0" + tcp_aging : 0 + udp_aging : 0 + mac : [0x0,0x0,0x0,0x1,0x0,0x00] + cap_info : + - name: cap2/udp_64B.pcap + cps : 90615 + ipg : 10000 + rtt : 10000 + w : 1 + limit : 199 + - name: cap2/udp_576B.pcap + cps : 64725 + ipg : 10000 + rtt : 10000 + w : 1 + limit : 199 + - name: cap2/udp_1500B.pcap + cps : 12945 + ipg : 10000 + rtt : 10000 + w : 1 + limit : 199 + - name: cap2/udp_64B.pcap + cps : 90615 + ipg : 10000 + rtt : 10000 + w : 1 + limit : 199 + - name: cap2/udp_576B.pcap + cps : 64725 + ipg : 10000 + rtt : 10000 + w : 1 + limit : 199 + - name: cap2/udp_1500B.pcap + cps : 12945 + ipg : 10000 + rtt : 10000 + w : 1 + limit : 199 +---- +The templates are duplicate here to better utilize DRAM and to get better performance. +//TBD: What exactly repeates the templates - TRex, script, ? Also, how does that better utilize DRAM. + +.Imix YAML `cap2/imix_fast_1g_100k_flows.yaml` example +[source,python] +---- +- duration : 3 + generator : + distribution : "seq" + clients_start : "16.0.0.1" + clients_end : "16.0.0.255" + servers_start : "48.0.0.1" + servers_end : "48.0.255.255" + clients_per_gb : 201 + min_clients : 101 + dual_port_mask : "1.0.0.0" + tcp_aging : 0 + udp_aging : 0 + mac : [0x0,0x0,0x0,0x1,0x0,0x00] + cap_info : + - name: cap2/udp_64B.pcap + cps : 90615 + ipg : 10000 + rtt : 10000 + w : 1 + limit : 16666 + - name: cap2/udp_576B.pcap + cps : 64725 + ipg : 10000 + rtt : 10000 + w : 1 + limit : 16666 + - name: cap2/udp_1500B.pcap + cps : 12945 + ipg : 10000 + rtt : 10000 + w : 1 + limit : 16667 + - name: cap2/udp_64B.pcap + cps : 90615 + ipg : 10000 + rtt : 10000 + w : 1 + limit : 16667 + - name: cap2/udp_576B.pcap + cps : 64725 + ipg : 10000 + rtt : 10000 + w : 1 + limit : 16667 + - name: cap2/udp_1500B.pcap + cps : 12945 + ipg : 10000 + rtt : 10000 + w : 1 + limit : 16667 +---- + +The following example of a simple simulation includes 3 flows, with CPS=10. + +[source,python] +---- +$more cap2/imix_example.yaml +# +# Simple IMIX test (7x64B, 5x576B, 1x1500B) +# +- duration : 3 + generator : + distribution : "seq" + clients_start : "16.0.0.1" + clients_end : "16.0.0.255" + servers_start : "48.0.0.1" + servers_end : "48.0.255.255" + clients_per_gb : 201 + min_clients : 101 + dual_port_mask : "1.0.0.0" + tcp_aging : 0 + udp_aging : 0 + mac : [0x0,0x0,0x0,0x1,0x0,0x00] + cap_info : + - name: cap2/udp_64B.pcap + cps : 10.0 + ipg : 10000 + rtt : 10000 + w : 1 + limit : 3 <1> + +---- +<1> Number of flows: 3 + + +[source,bash] +---- +./bp-sim-32-debug -f cap2/imix_example.yaml -o my.erf -v 3 > a.txt +---- + +.IMIX example limit=3 +[format="csv",cols="1^,2^,1^,1^,1^,2^,1^,2^,1^", options="header"] +|================= +pkt,time sec,template,fid,flow-pkt-id,client_ip,client_port,server_ip ,desc + 1 , 0.010000 , 0 , 1 , 1 , 16.0.0.1 , 1024 , 48.0.0.1 , -> + 2 , 0.210000 , 0 , 2 , 0 , 16.0.0.2 , 1024 , 48.0.0.2 , -> + 3 , 0.310000 , 0 , 3 , 0 , 16.0.0.3 , 1024 , 48.0.0.3 , -> + 4 , 0.310000 , 0 , 1 , 0 , 16.0.0.1 , 1024 , 48.0.0.1 , -> + 5 , 0.510000 , 0 , 2 , 0 , 16.0.0.2 , 1024 , 48.0.0.2 , -> + 6 , 0.610000 , 0 , 3 , 0 , 16.0.0.3 , 1024 , 48.0.0.3 , -> + 7 , 0.610000 , 0 , 1 , 0 , 16.0.0.1 , 1024 , 48.0.0.1 , -> + 8 , 0.810000 , 0 , 2 , 0 , 16.0.0.2 , 1024 , 48.0.0.2 , -> + 9 , 0.910000 , 0 , 1 , 0 , 16.0.0.1 , 1024 , 48.0.0.1 , -> + 10 , 0.910000 , 0 , 3 , 0 , 16.0.0.3 , 1024 , 48.0.0.3 , -> + 11 , 1.110000 , 0 , 2 , 0 , 16.0.0.2 , 1024 , 48.0.0.2 , -> + 12 , 1.210000 , 0 , 3 , 0 , 16.0.0.3 , 1024 , 48.0.0.3 , -> + 13 , 1.210000 , 0 , 1 , 0 , 16.0.0.1 , 1024 , 48.0.0.1 , -> + 14 , 1.410000 , 0 , 2 , 0 , 16.0.0.2 , 1024 , 48.0.0.2 , -> + 15 , 1.510000 , 0 , 1 , 0 , 16.0.0.1 , 1024 , 48.0.0.1 , -> + 16 , 1.510000 , 0 , 3 , 0 , 16.0.0.3 , 1024 , 48.0.0.3 , -> + 17 , 1.710000 , 0 , 2 , 0 , 16.0.0.2 , 1024 , 48.0.0.2 , -> + 18 , 1.810000 , 0 , 3 , 0 , 16.0.0.3 , 1024 , 48.0.0.3 , -> + 19 , 1.810000 , 0 , 1 , 0 , 16.0.0.1 , 1024 , 48.0.0.1 , -> + 20 , 2.010000 , 0 , 2 , 0 , 16.0.0.2 , 1024 , 48.0.0.2 , -> + 21 , 2.110000 , 0 , 1 , 0 , 16.0.0.1 , 1024 , 48.0.0.1 , -> + 22 , 2.110000 , 0 , 3 , 0 , 16.0.0.3 , 1024 , 48.0.0.3 , -> + 23 , 2.310000 , 0 , 2 , 0 , 16.0.0.2 , 1024 , 48.0.0.2 , -> + 24 , 2.410000 , 0 , 3 , 0 , 16.0.0.3 , 1024 , 48.0.0.3 , -> + 25 , 2.410000 , 0 , 1 , 0 , 16.0.0.1 , 1024 , 48.0.0.1 , -> + 26 , 2.610000 , 0 , 2 , 0 , 16.0.0.2 , 1024 , 48.0.0.2 , -> + 27 , 2.710000 , 0 , 1 , 0 , 16.0.0.1 , 1024 , 48.0.0.1 , -> + 28 , 2.710000 , 0 , 3 , 0 , 16.0.0.3 , 1024 , 48.0.0.3 , -> + 29 , 2.910000 , 0 , 2 , 0 , 16.0.0.2 , 1024 , 48.0.0.2 , -> + 30 , 3.010000 , 0 , 3 , 0 , 16.0.0.3 , 1024 , 48.0.0.3 , -> + 31 , 3.010000 , 0 , 1 , 0 , 16.0.0.1 , 1024 , 48.0.0.1 , -> +|================= + +* Average CPS: 10 packets per second (30 packets in 3 sec). +* Total of 3 flows, as specified in the configuration file. +* The flows come in bursts, as specified in the configuration file. + + +ifndef::backend-docbook[] ++++++++++++++++++++++++++++++++++ +<div id="chart_imix" style="font : 10px sans-serif"; ></div> + +<script> +var imix_data=[ +[ 0.010000 , 1 , 0 , 1 ], +[ 0.210000 , 2 , 0 , 0 ], +[ 0.310000 , 3 , 0 , 0 ], +[ 0.310000 , 1 , 0 , 0 ], +[ 0.510000 , 2 , 0 , 0 ], +[ 0.610000 , 3 , 0 , 0 ], +[ 0.610000 , 1 , 0 , 0 ], +[ 0.810000 , 2 , 0 , 0 ], +[ 0.910000 , 1 , 0 , 0 ], +[ 0.910000 , 3 , 0 , 0 ], +[ 1.110000 , 2 , 0 , 0 ], +[ 1.210000 , 3 , 0 , 0 ], +[ 1.210000 , 1 , 0 , 0 ], +[ 1.410000 , 2 , 0 , 0 ], +[ 1.510000 , 1 , 0 , 0 ], +[ 1.510000 , 3 , 0 , 0 ], +[ 1.710000 , 2 , 0 , 0 ], +[ 1.810000 , 3 , 0 , 0 ], +[ 1.810000 , 1 , 0 , 0 ], +[ 2.010000 , 2 , 0 , 0 ], +[ 2.110000 , 1 , 0 , 0 ], +[ 2.110000 , 3 , 0 , 0 ], +[ 2.310000 , 2 , 0 , 0 ], +[ 2.410000 , 3 , 0 , 0 ], +[ 2.410000 , 1 , 0 , 0 ], +[ 2.610000 , 2 , 0 , 0 ], +[ 2.710000 , 1 , 0 , 0 ], +[ 2.710000 , 3 , 0 , 0 ], +[ 2.910000 , 2 , 0 , 0 ], +[ 3.010000 , 3 , 0 , 0 ], +[ 3.010000 , 1 , 0 , 0 ], +]; + +chart("#chart_imix",imix_data,["udp_64"],"time-sec","flow-id"); +</script> ++++++++++++++++++++++++++++++++++ +endif::backend-docbook[] + +=== Clients/Servers IP allocation scheme + +Currently, there is one global IP pool for clients and servers. It serves all templates. all the templates will allocate IP from this global pool. +Each TRex client/server "dual-port" (pair of ports, such as port 0 for client, port 1 for server) has it own mask offset taken from the YAML. The mask offset is called `dual_port_mask`. + +Example: + +[source,python] +---- +generator : + distribution : "seq" + clients_start : "16.0.0.1" + clients_end : "16.0.0.255" + servers_start : "48.0.0.1" + servers_end : "48.0.0.255" + dual_port_mask : "1.0.0.0" <1> + tcp_aging : 0 + udp_aging : 0 +---- +<1> Mask to add per dual-port pair. +The reason we introduce dual_port_mask is to make static route configurable. With this mask, different ports has different prefix. + +//TBD: needs clarification - this is the format of a port mask? + +With four ports, TRex produces the following output: + +[source,python] +---- + dual-0 (0,1) --> C (16.0.0.1-16.0.0.128 ) <-> S( 48.0.0.1 - 48.0.0.128) + dual-1 (2,3) --> C (17.0.0.129-17.0.0.255 ) <-> S( 49.0.0.129 - 49.0.0.255) + mask ("1.0.0.0") +---- + +In the case of setting dual-port_mask as 0.0.0.0, both ports will use the same range of ip. +With four ports and dual_port_mask as 0.0.0.0, the ip range is : + +[source,python] +---- + dual-0 (0,1) --> C (16.0.0.1-16.0.0.128 ) <-> S( 48.0.0.1 - 48.0.0.128) + dual-1 (2,3) --> C (16.0.0.129-16.0.0.255 ) <-> S( 48.0.0.129 - 48.0.0.255) +---- + +//TBD: not clear what the following 5 points are referring to. This looks like it should be a continuation of the footnotes for the example a few lines up. +- Number of clients : 255 +- Number of servers : 255 +- The mask defined by dual_port_mask (1.0.0.0) is added for each dual-port pair, but the total number of clients/servers from YAML will be constant and does not depend on the amount of dual ports. +- TCP/UDP aging is required when the number of clients is very small and the template defines a very long duration. +This is the time it takes to return the socket to the pool. +//TBD: not clear - is TCP/UDP aging an option used when the template defines a long duration? also, should specify what "very long" refers to. +- In the current version, the only option for distribution is "seq". + + +*Router configuration for this mode:*:: + +PBR is not necessary. The following configuration is sufficient. +//TBD: clarify + +[source,python] +---- +interface TenGigabitEthernet1/0/0 <1> + mac-address 0000.0001.0000 + mtu 4000 + ip address 11.11.11.11 255.255.255.0 +! +` +interface TenGigabitEthernet1/1/0 <2> + mac-address 0000.0001.0000 + mtu 4000 + ip address 22.11.11.11 255.255.255.0 +! +interface TenGigabitEthernet1/2/0 <3> + mac-address 0000.0001.0000 + mtu 4000 + ip address 33.11.11.11 255.255.255.0 +! +interface TenGigabitEthernet1/3/0 <4> + mac-address 0000.0001.0000 + mtu 4000 + ip address 44.11.11.11 255.255.255.0 + load-interval 30 + + +ip route 16.0.0.0 255.0.0.0 22.11.11.12 +ip route 48.0.0.0 255.0.0.0 11.11.11.12 +ip route 17.0.0.0 255.0.0.0 44.11.11.12 +ip route 49.0.0.0 255.0.0.0 33.11.11.12 +---- +<1> Connected to TRex port 0 (client side) +<2> Connected to TRex port 1 (server side) +<3> Connected to TRex port 2 (client side) +<4> Connected to TRex port 3(server side) + +*One server:*:: + +To support a template with one server, you can add a new YAML server_addr ip. Each dual-port pair will be assigned a separate server (in compliance with the mask). +//TBD: clarify + +[source,python] +---- +- name: cap2/dns.pcap + cps : 1.0 + ipg : 10000 + rtt : 10000 + w : 1 + server_addr : "48.0.0.1" <1> + one_app_server : true <2> + wlength : 1 +---- +<1> Server IPv4 address. +<2> Enable one server mode. + +*w/wlength:*:: +//TBD: looks like this should be a continuation of the footnotes as in 1 and 2 above. + +not require to configure them, user 1 +//TBD: ? + +*new statistic:*:: + +[source,python] +---- + Active-flows : 19509 Clients : 504 Socket-util : 0.0670 % + Open-flows : 247395 Servers : 65408 Socket : 21277 Socket/Clients : 42.2 +---- + + +[NOTE] +===================================================================== +* No backward compatibility with the old generator YAML format. +* When using -p option, TRex will not comply with the static route rules. Server-side traffic may be sent from the client side (port 0) and vice-versa. Use the -p option only with PBR configuration when the router, switch p1<->p2. +//TBD: "when router..." unclear +* VLAN (sub interface feature) does not comply with static route rules. Use it only with PBR. + VLAN0 <-> VALN1 per interface + vlan : { enable : 1 , vlan0 : 100 , vlan1 : 200 } +* Limitation: When using a template with plugins (bundles), the number of servers must be higher than the number of clients. +===================================================================== + +==== More Details about IP allocations + +Each time a new flow is creaed, TRex allocates a new Client IP/port and Server IP. This 3-tuple should be distinct among active flows. + +Currently, only sequcency distribution is supported in IP allocation. That means the IP address is increased one by one. + +Let's say if we have 2 candidate IPs in the pool: 16.0.0.1 and 16.0.0.2. So the sequence of allocated clients should be something like this: + +[source,python] +---- +16.0.0.0.1 [1024] +16.0.0.0.2 [1024] +16.0.0.0.1 [1025] +16.0.0.0.2 [1025] +---- + +==== How to decide the PPS and BPS + +- Example of one flow with 4 packets +- Green are first packet of flow +- Lets say the client ip pool starts from 16.0.0.1, and the distribution is seq. + +image:images/ip_allocation.png[title="rigt"] + +latexmath:[$Total PPS = \sum_{k=0}^{n}(CPS_{k}\times {flow\_pkts}_{k})$] + +latexmath:[$Concurrent flow = \sum_{k=0}^{n}CPS_{k}\times flow\_duration_k $] + + +The above fomulars can be used to calculate the PPS. The TRex throughput depends on the PPS calculated above and the value of m (a multiplier assigned by TRex cli). + +The m value is a multiplier of total pcap files CPS. +CPS of pcap file is configured on yaml file. + +Let's take a simple example as below. + + +[source,python] +---- +cap_info : + - name: avl/first.pcap < -- has 2 packets + cps : 102.0 + ipg : 10000 + rtt : 10000 + w : 1 + - name: avl/second.pcap < -- has 20 packets + cps : 50.0 + ipg : 10000 + rtt : 10000 + w : 1 +---- + +The throughput is: 'm*(CPS_1*flow_pkts+CPS_2*flow_pkts)' + +So if the m is set as 1, the total PPS is : 102*2+50*20 = 1204 PPS. + +The BPS depends on the packet size. You can refer to your packet size and get the BPS = PPS*Packet_size. + +==== Roadmap of Client/Server IP allocation + +We have several features under development for IP allocation. + +- *1) per-template generator* + +Multiple generators can be defined and assigned to different pcap file templates. + +The YAML configuration is something like this: + + +[source,python] +---- + generator : + distribution : "seq" + clients_start : "16.0.0.1" + clients_end : "16.0.1.255" + servers_start : "48.0.0.1" + servers_end : "48.0.20.255" + clients_per_gb : 201 + min_clients : 101 + dual_port_mask : "1.0.0.0" + tcp_aging : 0 + udp_aging : 0 + generator_clients : + - name : "c1" + distribution : "random" + ip_start : "38.0.0.1" + ip_end : "38.0.1.255" + clients_per_gb : 201 + min_clients : 101 + dual_port_mask : "1.0.0.0" + tcp_aging : 0 + udp_aging : 0 + generator_servers : + - name : "s1" + distribution : "seq" + ip_start : "58.0.0.1" + ip_end : "58.0.1.255" + dual_port_mask : "1.0.0.0 + cap_info : + - name: avl/delay_10_http_get_0.pcap + cps : 404.52 + ipg : 10000 + rtt : 10000 + w : 1 + - name: avl/delay_10_http_post_0.pcap + client_pool : "c1" + server_pool : "s1" + cps : 404.52 + ipg : 10000 + rtt : 10000 + w : 1 +---- + +- *2) More distributions will be supported (normal distribution, random distribution, etc)* + +Currently, only sequcence is supported. + +- *3) Histogram of tuple pool will be supported* + +This feature gives user more flexibility to define the IP generator. + +[source,python] +---- + generator : + client_pools: + - name : "a" + distribution : "seq" + clients_start : "16.0.0.1" + clients_end : "16.0.1.255" + tcp_aging : 0 + udp_aging : 0 + + - name : "b" + distribution : "random" + clients_start : 26.0.0.1" + clients_end : 26.0.1.255" + tcp_aging : 0 + udp_aging : 0 + + - name : "c" + pools_list : + - name:"a" + probability: 0.8 + - name:"b" + probability: 0.2 +---- + + + +=== Measure Jitter/Latency + +To measure jitter/latency on high priorty packets (one SCTP flow), use `-l [Hz]` where Hz defines the number of packets to send from each port per second. This option measures latency and jitter in the latency. The shell output is similar to the following: + +[source,python] +---- + Cpu Utilization : 0.1 % + if| tx_ok , rx_ok , rx ,error, average , max , Jitter<1> ,max + | , , check, , latency(usec),latency (usec) ,(usec) , window + -------------------------------------------------------------------------------------- + 0 | 1002, 1002, 2501, 0, 61 , 70, 3 | 60 60 + 1 | 1002, 1002, 2012, 0, 56 , 63, 2 | 50 51 + 2 | 1002, 1002, 2322, 0, 66 , 74, 5 | 68 59 + 3 | 1002, 1002, 1727, 0, 58 , 68, 2 | 52 49 + + Rx Check stats enabled + --------------------------------------------------------------------------------------- + rx check: avg/max/jitter latency, 94 , 744, 49<1> | 252 287 3 + + active flows: 10, fif: 308, drop: 0, errors: 0 + --------------------------------------------------------------------------------------- +---- +<1> Jitter information + + |