VPP/Configuration Tool
Contents
Summary
The purpose of the VPP configuration utility is to allow the user to configure VPP in a simple and safe manner. The utility takes input from the user and then modifies the key configuration files. The user can then examine these files to be sure they are correct and then actually apply the configuration. The utility also includes an installation utility and some basic tests. This utility is currently released with release 17.10.
Use
The installation and executing of the VPP configuration utility is simple. First install the python pip module. Then using pip, install vpp-config. Once cpp-config is installed simply type vpp-config and answer the questions. If you are not sure what to answer choose the default. For yes or no questions the capital letter designates the default. For example, for a question that shows [Y/n] Y is the default. For numbers the default is within the brackets for example for a question that shows [1024]. 1024 is the default.
Ubuntu install and run:
$ sudo -H bash # apt-get install python-pip Reading package lists... Done Building dependency tree Reading state information... Done python-pip is already the newest version (8.1.1-2ubuntu0.4).
# pip install vpp-config Collecting vpp-config Downloading vpp_config-17.10.5-py2.py3-none-any.whl (52kB) Requirement already satisfied: pyyaml in /usr/local/lib/python2.7/dist-packages (from vpp-config) Requirement already satisfied: netaddr in /usr/local/lib/python2.7/dist-packages (from vpp-config) Installing collected packages: vpp-config Successfully installed vpp-config-17.10.5
# 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)!
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:
Caveats
This utility has been verified and supports Ubuntu16.04, centos7, RHEL7.
For Developers
Modifying the code is reasonable simple. The process would be edit and debug the code from the root directory. In order to do this, we need a script that will copy or data files to the proper place. This is where they end up with pip install. For Ubuntu, this is /usr/local/vpp/vpp-config. For Centos /usr/vpp/vpp-config. I have provided a script that will copy the relevant files correctly. I have also provided a script that will clean the environment so you can start from scratch. These are the steps to run the utility in this environment. The scripts are meant to be run from the root directory.
./scripts/clean.sh ./scripts/cp-data.sh ./vpp_config.py
When the utility is installed with pip the wrapper scripts/vpp-config is written to /usr/local/bin. However, the starting point when debugging this script locally is ./vpp_config.py. Run the utility by executing ./vpp_config.py from the root directory.
The start point in the code is in vpp_config.py. However, most of the work is done in the files in ./vpplib
Uploading to PyPi
To upload this utility to PpPi simple do the following. Currently, I have my own account when we want everyone to contribute we will need to change that.
$ sudo -H bash # cd vpp_config # python setup.py sdist bdist_wheel # twine upload dist/*
Examples:
Show System
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)!
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
==============================
Install VPP
Notice when the basic system information was shown VPP was not installed.
VPP Service Status: Not Installed ==============================
We can now install VPP with option 4
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/ ./
.......
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.
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
Apply 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.
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]?
Show System (after the 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.
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)
vpp_main : 8
vpp_wk_1 : 10
vpp_wk_0 : 9
vpp_stats : 0
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="isolcpus=8,9-10 nohz_full=8,9-10 rcu_nocbs=8,9-10"
Huge Pages:
Total System Memory : 65863484 kB
Total Free Memory : 42048632 kB
Actual Huge Page Total : 8192
Configured Huge Page Total : 8192
Huge Pages Free : 7936
Huge Page Size : 2048 kB
Devices:
Total Number of Buffers: 25600
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
Devices bound to DPDK drivers:
0000:86:00.0 82599ES 10-Gigabit SFI/SFP+ Network Connection
0000:86:00.1 82599ES 10-Gigabit SFI/SFP+ Network Connection
Devices in use by VPP:
Name Socket RXQs RXDescs TXQs TXDescs
TenGigabitEthernet86/0/0 1 2 1024 3 1024
TenGigabitEthernet86/0/1 1 2 1024 3 1024
VPP Service Status:
active (running)
==============================
Set IP 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.
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]?
