Using the FD.io VPP Configuration Utility¶
vpp-config utility provides the user with a menu that offers a variety of useful features used to configure the devices which will be used by VPP, hugepages, and allowing VPP to be the only process running on its specified CPU.
Target Files¶
The following files will be modified by VPP config: .. code-block:: console
/etc/vpp/startup.conf /etc/sysctl.d/80-vpp.conf /etc/default/grub
Once vpp-config is installed simply type:
# vpp-config
Welcome to the VPP system configuration utility
What would you like to do?
1) Show basic system information
2) Dry Run (Will save the configuration files in /usr/local/vpp/vpp-config/dryrun for inspection)
and user input in /usr/local/vpp/vpp-config/configs/auto-config.yaml
3) Full configuration (WARNING: This will change the system configuration)
4) List/Install/Uninstall VPP.
5) Execute some basic tests.
9 or q) Quit
Command:
and answer the questions. If you are not sure what to answer choose the
default.
Configuring FD.io VPP with Default Values¶
If you do not choose to modify the default for any of the questions prompted by vpp-config, you may press the ENTER key to select the default options:
- Questions that ask [Y/n], the capital letter Y is the default answer.
- Numbers have their default within brackets, such as in [1024], the 1024 is the default.
Command 1. Show System Information¶
Before Configuration¶
When the utility is first started we can show the basic system information.
# vpp-config
Welcome to the VPP system configuration utility
These are the files we will modify:
/etc/vpp/startup.conf
/etc/sysctl.d/80-vpp.conf
/etc/default/grub
Before we change them, we'll create working copies in /usr/local/vpp/vpp-config/dryrun
Please inspect them carefully before applying the actual configuration (option 3)!
# vpp-config
What would you like to do?
1) Show basic system information
2) Dry Run (Will save the configuration files in /usr/local/vpp/vpp-config/dryrun for inspection)
and user input in /usr/local/vpp/vpp-config/configs/auto-config.yaml
3) Full configuration (WARNING: This will change the system configuration)
4) List/Install/Uninstall VPP.
5) Execute some basic tests.
9 or q) Quit
Command: 1
==============================
NODE: DUT1
CPU:
Model name: Intel(R) Xeon(R) CPU E5-2667 v3 @ 3.20GHz
CPU(s): 32
Thread(s) per core: 2
Core(s) per socket: 8
Socket(s): 2
NUMA node0 CPU(s): 0-7,16-23
NUMA node1 CPU(s): 8-15,24-31
CPU max MHz: 3600.0000
CPU min MHz: 1200.0000
SMT: Enabled
VPP Threads: (Name: Cpu Number)
Grub Command Line:
Current: BOOT_IMAGE=/boot/vmlinuz-4.4.0-97-generic root=UUID=d760b82f-f37b-47e2-9815-db8d479a3557 ro
Configured: GRUB_CMDLINE_LINUX_DEFAULT=""
Huge Pages:
Total System Memory : 65863484 kB
Total Free Memory : 56862700 kB
Actual Huge Page Total : 1024
Configured Huge Page Total : 1024
Huge Pages Free : 1024
Huge Page Size : 2048 kB
Devices:
Devices with link up (can not be used with VPP):
0000:08:00.0 enp8s0f0 I350 Gigabit Network Connection
Devices bound to kernel drivers:
0000:90:00.0 enp144s0 VIC Ethernet NIC
0000:8f:00.0 enp143s0 VIC Ethernet NIC
0000:84:00.0 enp132s0f0,enp132s0f0d1 Ethernet Controller XL710 for 40GbE QSFP+
0000:84:00.1 enp132s0f1,enp132s0f1d1 Ethernet Controller XL710 for 40GbE QSFP+
0000:08:00.1 enp8s0f1 I350 Gigabit Network Connection
0000:02:00.0 enp2s0f0 82599ES 10-Gigabit SFI/SFP+ Network Connection
0000:02:00.1 enp2s0f1 82599ES 10-Gigabit SFI/SFP+ Network Connection
No devices bound to DPDK drivers
VPP Service Status:
Not Installed
==============================
After Configuration¶
When we show the system information after the system is configured notice that the VPP workers and the VPP main core is on the correct Numa Node. Notice also that VPP is running and the interfaces are shown.
# vpp-config
What would you like to do?
1) Show basic system information
2) Dry Run (Will save the configuration files in /usr/local/vpp/vpp-config/dryrun for inspection)
and user input in /usr/local/vpp/vpp-config/configs/auto-config.yaml
3) Full configuration (WARNING: This will change the system configuration)
4) List/Install/Uninstall VPP.
5) Execute some basic tests.
9 or q) Quit
Command: 1
==============================
NODE: DUT1
CPU:
Model name: Intel(R) Xeon(R) Gold 6140 CPU @ 2.30GHz
CPU(s): 72
Thread(s) per core: 2
Core(s) per socket: 18
Socket(s): 2
NUMA node0 CPU(s): 0-17,36-53
NUMA node1 CPU(s): 18-35,54-71
CPU max MHz: 3700.0000
CPU min MHz: 1000.0000
SMT: Enabled
VPP Threads: (Name: Cpu Number)
vpp_main : 0
vpp_stats : 0
Grub Command Line:
Current: BOOT_IMAGE=/vmlinuz-3.10.0-693.21.1.el7.x86_64 root=UUID=cc995b4c-3c20-4ca5-ae26-d6ed364af63f ro crashkernel=auto biosdevname=0 net.ifnames=0 rhgb quiet intel_iommu=on
Configured: GRUB_CMDLINE_LINUX="crashkernel=auto biosdevname=0 net.ifnames=0 rhgb quiet intel_iommu=on"
Huge Pages:
Total System Memory : 196583908 kB
Total Free Memory : 113683588 kB
Actual Huge Page Total : 4096
Configured Huge Page Total : 8192
Huge Pages Free : 3960
Huge Page Size : 2048 kB
Devices:
Devices with link up (can not be used with VPP):
0000:3d:00.0 eth2 Ethernet Connection X722 for 10GBASE-T
Devices bound to kernel drivers:
0000:3d:00.1 eth3 Ethernet Connection X722 for 10GBASE-T
0000:18:02.1 eth7 Ethernet Virtual Function 700 Series
0000:18:02.0 eth6 Ethernet Virtual Function 700 Series
0000:18:02.3 eth9 Ethernet Virtual Function 700 Series
0000:18:02.2 eth8 Ethernet Virtual Function 700 Series
0000:18:00.0 eth0 Ethernet Controller XXV710 for 25GbE SFP28
0000:86:00.0 eth4 Ethernet Controller XXV710 for 25GbE SFP28
0000:86:00.1 eth5 Ethernet Controller XXV710 for 25GbE SFP28
No devices bound to DPDK drivers
VPP Service Status:
activating (auto
==============================
Command 2. Dry Run¶
With VPP installed we can now execute a configuration dry run. This option will create the configuration files and put them in a dryrun directory. This directory is located for Ubuntu in /usr/local/vpp/vpp-config/dryrun and for Centos in /usr/vpp/vpp-config/dryrun. These files should be examined to be sure that they are valid before actually applying the configuration with option 3.
# vpp-config
What would you like to do?
1) Show basic system information
2) Dry Run (Will save the configuration files in /usr/local/vpp/vpp-config/dryrun for inspection)
and user input in /usr/local/vpp/vpp-config/configs/auto-config.yaml
3) Full configuration (WARNING: This will change the system configuration)
4) List/Install/Uninstall VPP.
5) Execute some basic tests.
9 or q) Quit
Command: 2
These device(s) are currently NOT being used by VPP or the OS.
PCI ID Description
----------------------------------------------------------------
0000:86:00.0 82599ES 10-Gigabit SFI/SFP+ Network Connection
0000:86:00.1 82599ES 10-Gigabit SFI/SFP+ Network Connection
Would you like to give any of these devices back to the OS [Y/n]? y
Would you like to use device 0000:86:00.0 for the OS [y/N]? y
Would you like to use device 0000:86:00.1 for the OS [y/N]? y
These devices have kernel interfaces, but appear to be safe to use with VPP.
PCI ID Kernel Interface(s) Description
------------------------------------------------------------------------------------------
0000:90:00.0 enp144s0 VIC Ethernet NIC
0000:8f:00.0 enp143s0 VIC Ethernet NIC
0000:84:00.0 enp132s0f0,enp132s0f0d1 Ethernet Controller XL710 for 40GbE QSFP+
0000:84:00.1 enp132s0f1,enp132s0f1d1 Ethernet Controller XL710 for 40GbE QSFP+
0000:08:00.1 enp8s0f1 I350 Gigabit Network Connection
0000:02:00.0 enp2s0f0 82599ES 10-Gigabit SFI/SFP+ Network Connection
0000:02:00.1 enp2s0f1 82599ES 10-Gigabit SFI/SFP+ Network Connection
0000:86:00.0 enp134s0f0 82599ES 10-Gigabit SFI/SFP+ Network Connection
0000:86:00.1 enp134s0f1 82599ES 10-Gigabit SFI/SFP+ Network Connection
Would you like to use any of these device(s) for VPP [y/N]? y
Would you like to use device 0000:90:00.0 for VPP [y/N]?
Would you like to use device 0000:8f:00.0 for VPP [y/N]?
Would you like to use device 0000:84:00.0 for VPP [y/N]?
Would you like to use device 0000:84:00.1 for VPP [y/N]?
Would you like to use device 0000:08:00.1 for VPP [y/N]?
Would you like to use device 0000:02:00.0 for VPP [y/N]?
Would you like to use device 0000:02:00.1 for VPP [y/N]?
Would you like to use device 0000:86:00.0 for VPP [y/N]? y
Would you like to use device 0000:86:00.1 for VPP [y/N]? y
These device(s) will be used by VPP.
PCI ID Description
----------------------------------------------------------------
0000:86:00.0 82599ES 10-Gigabit SFI/SFP+ Network Connection
0000:86:00.1 82599ES 10-Gigabit SFI/SFP+ Network Connection
Would you like to remove any of these device(s) [y/N]?
These device(s) will be used by VPP, please rerun this option if this is incorrect.
PCI ID Description
----------------------------------------------------------------
0000:86:00.0 82599ES 10-Gigabit SFI/SFP+ Network Connection
0000:86:00.1 82599ES 10-Gigabit SFI/SFP+ Network Connection
Your system has 32 core(s) and 2 Numa Nodes.
To begin, we suggest not reserving any cores for VPP or other processes.
Then to improve performance try reserving cores as needed.
How many core(s) do you want to reserve for processes other than VPP? [0-16][0]?
How many core(s) shall we reserve for VPP workers[0-4][0]? 2
Should we reserve 1 core for the VPP Main thread? [y/N]? y
How many active-open / tcp client sessions are expected [0-10000000][0]?
How many passive-open / tcp server sessions are expected [0-10000000][0]?
There currently 1024 2048 kB huge pages free.
Do you want to reconfigure the number of huge pages [y/N]? y
There currently a total of 1024 huge pages.
How many huge pages do you want [1024 - 19414][1024]? 8192
Command 3. Apply Full Configuration¶
After the configuration files have been examined we can apply the configuration with option 3. Notice the default is NOT to change the grub command line. If the option to change the grub command line is selected a reboot will be required.
# vpp-config
What would you like to do?
1) Show basic system information
2) Dry Run (Will save the configuration files in /usr/local/vpp/vpp-config/dryrun for inspection)
and user input in /usr/local/vpp/vpp-config/configs/auto-config.yaml
3) Full configuration (WARNING: This will change the system configuration)
4) List/Install/Uninstall VPP.
5) Execute some basic tests.
9 or q) Quit
Command: 3
We are now going to configure your system(s).
Are you sure you want to do this [Y/n]? y
These are the changes we will apply to
the huge page file (/etc/sysctl.d/80-vpp.conf).
1,2d0
< vm.nr_hugepages=1024
4,7c2,3
< vm.max_map_count=3096
---
> vm.nr_hugepages=8192
> vm.max_map_count=17408
8a5
> kernel.shmmax=17179869184
10,15d6
< kernel.shmmax=2147483648
Are you sure you want to apply these changes [Y/n]?
These are the changes we will apply to
the VPP startup file (/etc/vpp/startup.conf).
---
>
> main-core 8
> corelist-workers 9-10
>
> scheduler-policy fifo
> scheduler-priority 50
>
67,68c56,66
< # dpdk {
---
> dpdk {
>
> dev 0000:86:00.0 {
> num-rx-queues 2
> }
> dev 0000:86:00.1 {
> num-rx-queues 2
> }
> num-mbufs 25600
>
124c122
< # }
---
> }
Are you sure you want to apply these changes [Y/n]?
The configured grub cmdline looks like this:
GRUB_CMDLINE_LINUX_DEFAULT="isolcpus=8,9-10 nohz_full=8,9-10 rcu_nocbs=8,9-10"
The current boot cmdline looks like this:
BOOT_IMAGE=/boot/vmlinuz-4.4.0-97-generic root=UUID=d760b82f-f37b-47e2-9815-db8d479a3557 ro
Do you want to keep the current boot cmdline [Y/n]?
Command 4. List/Install/Uninstall VPP¶
Notice when the basic system information was shown, VPP was not installed.
VPP Service Status:
Not Installed
==============================
We can now install FD.io VPP with option 4
# vpp-config
What would you like to do?
1) Show basic system information
2) Dry Run (Will save the configuration files in /usr/local/vpp/vpp-config/dryrun for inspection)
and user input in /usr/local/vpp/vpp-config/configs/auto-config.yaml
3) Full configuration (WARNING: This will change the system configuration)
4) List/Install/Uninstall VPP.
5) Execute some basic tests.
9 or q) Quit
Command: 4
There are no VPP packages on node localhost.
Do you want to install VPP [Y/n]? y
INFO:root: Local Command: ls /etc/apt/sources.list.d/99fd.io.list.orig
INFO:root: /etc/apt/sources.list.d/99fd.io.list.orig
INFO:root: Local Command: rm /etc/apt/sources.list.d/99fd.io.list
INFO:root: Local Command: echo "deb [trusted=yes] https://nexus.fd.io/content/repositories/fd.io.ubuntu.xenial.main/ ./
" | sudo tee /etc/apt/sources.list.d/99fd.io.list
INFO:root: deb [trusted=yes] https://nexus.fd.io/content/repositories/fd.io.ubuntu.xenial.main/ ./
.......
Command 5. Execute Basic tests¶
Set IPv4 Addresses¶
Once VPP is configured we can add some ip addresses to the configured interfaces. Once this is done you should be able to ping the configured addresses and VPP is ready to use. After this option, is run a script is created in /usr/local/vpp/vpp-config/scripts/set_int_ipv4_and_up for Ubuntu and /usr/vpp/vpp-config/scripts/set_int_ipv4_and_up *for **Centos*. This script can be used to configure the ip addresses in the future.
# vpp-config
What would you like to do?
1) Show basic system information
2) Dry Run (Will save the configuration files in /usr/local/vpp/vpp-config/dryrun for inspection)
and user input in /usr/local/vpp/vpp-config/configs/auto-config.yaml
3) Full configuration (WARNING: This will change the system configuration)
4) List/Install/Uninstall VPP.
5) Execute some basic tests.
9 or q) Quit
Command: 5
What would you like to do?
1) List/Create Simple IPv4 Setup
9 or q) Back to main menu.
Command: 1
These are the current interfaces with IP addresses:
TenGigabitEthernet86/0/0 Not Set dn
TenGigabitEthernet86/0/1 Not Set dn
Would you like to keep this configuration [Y/n]? n
Would you like add address to interface TenGigabitEthernet86/0/0 [Y/n]?
Please enter the IPv4 Address [n.n.n.n/n]: 30.0.0.2/24
Would you like add address to interface TenGigabitEthernet86/0/1 [Y/n]? y
Please enter the IPv4 Address [n.n.n.n/n]: 40.0.0.2/24
A script as been created at /usr/local/vpp/vpp-config/scripts/set_int_ipv4_and_up
This script can be run using the following:
vppctl exec /usr/local/vpp/vpp-config/scripts/set_int_ipv4_and_up
What would you like to do?
1) List/Create Simple IPv4 Setup
9 or q) Back to main menu.
Command: 1
These are the current interfaces with IP addresses:
TenGigabitEthernet86/0/0 30.0.0.2/24 up
TenGigabitEthernet86/0/1 40.0.0.2/24 up
Would you like to keep this configuration [Y/n]?