====== Forwarding performance lab of a HP ProLiant DL360p Gen8 with 10-Gigabit Chelsio T540-CR ======
{{description>Forwarding performance lab of a quad cores Xeon 2.13GHz and quad-port 10-Gigabit Chelsio T540-CR}}

===== Bench lab =====

==== Hardware detail ====

This lab will test an [[HP ProLiant DL360p Gen8]] with **eight** cores (Intel Xeon E5-2650  @ 2.60GHz), quad port Chelsio 10-Gigabit T540-CR and OPT SFP (SFP-10G-LR).

The lab is detailed here: [[documentation:examples:Setting up a forwarding performance benchmark lab]].

=== Diagram ===

<code>
+------------------------------------------+ +-------+ +------------------------------+
|        Device under test                 | |Juniper| | Packet generator & receiver  |
|                                          | |  QFX  | |                              |
|                cxl0: 198.18.0.10/24      |=|   <   |=| vcxl0: 198.18.0.108/24       |
|                      2001:2::10/64       | |       | |        2001:2::108/64        |
|                      (00:07:43:2e:e4:70) | |       | |        (00:07:43:2e:e5:92)   |
|                                          | |       | |                              |
|                cxl1: 198.19.0.10/24      |=|   >   |=| vcxl1: 198.19.0.108/24       |
|                     2001:2:0:8000::10/64 | |       | |        2001:2:0:8000::108/64 |
|                      (00:07:43:2e:e4:78) | +-------+ |        (00:07:43:2e:e5:9a)   |
|                                          |           |                              |
|            static routes                 |           |                              |
| 192.18.0.0/16      => 198.18.0.108       |           |                              |
| 192.19.0.0/16      => 198.19.0.108       |           |                              |
| 2001:2::/49        => 2001:2::108        |           |                              |
| 2001:2:0:8000::/49 => 2001:2:0:8000::108 |           |                              |
|                                          |           |                              |
|        static arp and ndp                |           | /boot/loader.conf:           |
| 198.18.0.108        => 00:07:43:2e:e5:92 |           |      hw.cxgbe.num_vis=2      |
| 2001:2::108                              |           |                              |
|                                          |           |                              |
| 198.19.0.108        => 00:07:43:2e:e5:9a |           |                              |
| 2001:2:0:8000::108                       |           |                              |
+------------------------------------------+           +------------------------------+
</code>

The generator **MUST** generate lot's of smallest IP flows (multiple source/destination IP addresses and/or UDP src/dst port).

Here is an example for generating 5000 flows (different source IP * different destination IP) at line-rate by using 2 threads:
<code>
pkt-gen -N -f tx -w 2 -i vcxl0 -n 1000000000 -l 60 -4 -p 2 -S 00:07:43:2f:fe:b2 -s 198.18.10.1:2001-198.18.10.71 -D 00:07:43:2e:e4:70 -d 198.19.10.1:2001-198.19.10.70
</code>

And the same with IPv6 flows (minimum frame size of 62 here):
<code>
pkt-gen -N -f tx -w 2 -i vcxl0 -n 1000000000 -l 62 -6 -p 2 -S 00:07:43:2f:fe:b2 -s "[2001:2:0:10::1]-[2001:2:0:10::47]" -D 00:07:43:2e:e4:70 -d "[2001:2:0:8010::1]-[2001:2:0:8010::46]"
</code>

<note warning>
Netmap disable hardware checksum on the NIC, if you can't re-enable hardware checksum in netmap mode (like with Intel NIC), you need to use a FreeBSD -head with svn revision of 257758 minimum with the[[https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=187149|pkt-gen software-checksum patch]] for using multiple src/dst IP or port with netmap's pkt-gen. But this software checksum patch will reduce performance from line-rate to about 10Mpps.
</note>
Receiver will use this command:
<code>
pkt-gen -i vcxl1 -f rx -w 2
</code>
==== Configuration and tuning ====

[[https://github.com/ocochard/netbenches/tree/master/Xeon_E5-2650-8Cores-Chelsio_T540-CR/forwarding-pf-ipfw/configs|DUT configurations repository]]
=== Results ===

{{https://raw.githubusercontent.com/ocochard/netbenches/master/Xeon_E5-2650_8Cores-Chelsio_T540-CR/forwarding-pf-ipfw/results/fbsd12-stable.r354440.BSDRP.1.96/graph.png}}