.. _Technical_Briefs: https://wiki.opnfv.org/display/SAM/Technical+Briefs+of+VNFs
Prerequisite knowledge
------------------------
-Development/Contribution to SampleVNF requires knowledge of networking technologies including
-knowledge of network protocols and hands-on experience with relevant open-source
-software, such as Linux*, SDN, NFVI and the DPDK (if VNF is based on DPDK libraries).
-Developer needs debugging and benchmarking skils, as well as understanding of NFVi
-infrastructure across multiple domains.
+======================
+
+Development/Contribution to SampleVNF requires knowledge of networking
+technologies including knowledge of network protocols and hands-on experience
+with relevant open-source software, such as Linux*, SDN, NFVI and the DPDK (if
+VNF is based on DPDK libraries).
+Developer needs debugging and benchmarking skills, as well as understanding of
+NFVi infrastructure across multiple domains.
There are many ways to contribute to samplevnf.
+
* Develop new test cases in samplevnf
* Review code changes
* Develop/contribute to existing VNFs or new VNFs
* Write samplevnf documentation
-Techical Briefs of existsin VNFs in Technical_Briefs_
+Technical Briefs of exists in VNFs in Technical_Briefs_
+
+Get Started
+===========
-Get Started:
-----------
Where can I find some help to start?
-You can also directly contact us by mail with [SampleVNF] prefix in the title at
-opnfv-tech-discuss@lists.opnfv.org or on the IRC chan #opnfv-samplevnf.
+
+You can also directly contact us by mail with [SampleVNF] prefix in the title
+at opnfv-tech-discuss@lists.opnfv.org or on the IRC chan #opnfv-samplevnf.
How TOs
+-------
+
How can I contribute to SampleVNF?
-If you are already a contributor of any OPNFV project, you can contribute to samplevnf.
-If you are totally new to OPNFV, you must first create your Linux Foundation account,
-then contact us in order to declare you in the repository database.
+
+If you are already a contributor of any OPNFV project, you can contribute to
+samplevnf.
+If you are totally new to OPNFV, you must first create your Linux Foundation
+account, then contact us in order to declare you in the repository database.
We distinguish 2 levels of contributors:
-the standard contributor can push patch and vote +1/0/-1 on any samplevnf patch
-The commitor can vote -2/-1/0/+1/+2 and merge
-SampleVNF commitors are promoted by the samplevnf contributors.
+The standard contributor can push patch and vote +1/0/-1 on any samplevnf patch
+The committer can vote -2/-1/0/+1/+2 and merge.
+SampleVNF committers are promoted by the samplevnf contributors.
Gerrit & JIRA
+-------------
+
OPNFV uses Gerrit_ for web based code review and repository management for the
Git Version Control System. You can access OPNFV Gerrit from this link.
-Please note that you need to have Linux Foundation ID in order to use OPNFV Gerrit.
+Please note that you need to have Linux Foundation ID in order to use OPNFV
+Gerrit.
You can get one from this link.
-OPNFV uses JIRA_ for issue management. An important principle of change management
-is to have two-way trace-ability between issue management (i.e. JIRA_) and the code repository (via Gerrit).
-In this way, individual commits can be traced to JIRA issues and we also know which
-commits were used to resolve a JIRA issue.
+OPNFV uses JIRA_ for issue management. An important principle of change
+management is to have two-way traceability between issue management (i.e. JIRA_)and the code repository (via Gerrit).
+In this way, individual commits can be traced to JIRA issues and we also know
+which commits were used to resolve a JIRA issue.
If you want to contribute to samplevnf, you can pick a issue from SampleVNF's
JIRA dashboard or you can create you own issue and submit it to JIRA.
Submitting code to Gerrit
-Installing and configuring Git and Git-Review is necessary in order to submit code to Gerrit.
+-------------------------
+
+Installing and configuring Git and Git-Review is necessary in order to submit
+code to Gerrit.
The Getting to the code page will provide you with some help for that.
Comitting the code with Git
-Open a terminal window and set the project's directory to the working directory using the cd command.
-In this case "/home/opnfv/samplevnf" is the path to the samplevnf project folder on my computer.
+Open a terminal window and set the project's directory to the working directory
+using the cd command.
+In this case "/home/opnfv/samplevnf" is the path to samplevnf project folder.
Replace this with the path of your own project.
::
+
cd /home/opnfv/samplevnf
Tell Git which files you would like to take into account for the next commit.
using the 'git add' command (or the synonym 'git stage' command).
::
+
git add samplevnf/samples/sample.yaml
...
Alternatively, you can choose to stage all files that have been modified
-(that is the files you have worked on) since the last time you generated a commit, by using the -a argument.
+(that is the files you have worked on) since the last time you generated a
+commit, by using the -a argument.
::
+
git add -a
-Git won't let you push (upload) any code to Gerrit if you haven't pulled the latest changes first.
-So the next step is to pull (download) the latest changes made to the project by other collaborators using the 'pull' command.
+Git won't let you push (upload) any code to Gerrit if you haven't pulled
+the latest changes first.
+So the next step is to pull (download) the latest changes made to the project
+by other collaborators using the 'pull' command.
::
+
git pull
-Now that you have the latest version of the project and you have staged the files you wish to push,
-it is time to actually commit your work to your local Git repository.
+
+Now that you have the latest version of the project and you have staged the
+files you wish to push, it is time to actually commit your work to your local
+Git repository.
::
+
git commit --signoff -m "Title of change
Test of change that describes in high level what
JIRA: SAMPLEVNF-XXX"
-The message that is required for the commit should follow a specific set of rules.
-This practice allows to standardize the description messages attached to the commits,
-and eventually navigate among the latter more easily.
+The message that is required for the commit should follow a specific set of
+rules. This practice allows to standardize the description messages attached
+to the commits, and eventually navigate among the latter more easily.
Verify your patch locally before submitting
Once you finish a patch, you can submit it to Gerrit for code review.
-A developer sends a new patch to Gerrit will trigger patch verify job on Jenkins CI.
+A developer sends a new patch to Gerrit will trigger patch verify job on
+Jenkins CI.
Pushing the code to Gerrit for review
-Now that the code has been comitted into your local Git repository the following
-step is to push it online to Gerrit for it to be reviewed. The command we will use is 'git review'.
+Now that the code has been comitted into your local Git repository the
+following step is to push it online to Gerrit for it to be reviewed. The
+command we will use is 'git review'.
::
+
git review
+
This will automatically push your local commit into Gerrit.
Code review
Modifying the code under review in Gerrit
At the same time the code is being reviewed in Gerrit, you may need to edit it to
-make some changes and then send it back for review. The following steps go through the procedure.
-Once you have modified/edited your code files under your IDE, you will have to stage them.
-The 'status' command is very helpful at this point as it provides an overview of Git's current state.
+make some changes and then send it back for review. The following steps go
+through the procedure.
+Once you have modified/edited your code files under your IDE, you will have to
+stage them.
+The 'status' command is very helpful at this point as it provides an overview
+of Git's current state.
::
+
git status
-The output of the command provides us with the files that have been modified after the latest commit.
-You can now stage the files that have been modified as part of the Gerrit code review
-edition/modification/improvement using git add command.
-It is now time to commit the newly modified files, but the objective here is not to
-create a new commit, we simply want to inject the new changes into the previous commit.
+The output of the command provides us with the files that have been modified
+after the latest commit.
+
+You can now stage the files that have been modified as part of the Gerrit code
+review edition/modification/improvement using git add command.
+It is now time to commit the newly modified files, but the objective here is
+not to create a new commit, we simply want to inject the new changes into the
+previous commit.
+
You can achieve that with the '--amend' option on the 'commit' command:
::
+
git commit --amend
If the commit was successful, the 'status' command should not return the updated
The final step consists in pushing the newly modified commit to Gerrit.
::
+
git review
References
.. OPNFV SAMPLEVNF Documentation design file.
-===================================
+==========================
SampleVNF Highlevel Design
-===================================
-
-Introduction
---------------
-This project provides a placeholder for various sample VNF (Virtual Network Function)
-development which includes example reference architecture and optimization methods
-related to VNF/Network service for high performance VNFs. This project provides benefits
-to other OPNFV projects like Functest, Models, yardstick etc to perform real life
-use-case based testing and NFVi characterization for the same.
-The sample VNFs are Open Source approximations* of Telco grade VNF’s using optimized
-VNF + NFVi Infrastructure libraries, with Performance Characterization of Sample† Traffic Flows.
- • * Not a commercial product. Encourage the community to contribute and close the feature gaps.
- • † No Vendor/Proprietary Workloads
-
-About DPDK
-^^^^^^^^^^^
-The DPDK IP Pipeline Framework provides set of libraries to build a pipeline
-application. In this document, CG-NAT application will be explained with its
-own building blocks.
-
-This document assumes the reader possess the knowledge of DPDK concepts and IP
-Pipeline Framework. For more details, read DPDK Getting Started Guide, DPDK
-Programmers Guide, DPDK Sample Applications Guide.
-
-Scope
---------
-These application provides a standalone DPDK based high performance different
-Virtual Network Function implementation.
+==========================
+The high level design of the VNF and common code is explained here.
Common Code - L2L3 stack
--------------------------
+========================
Introduction
-^^^^^^^^^^^^^^^
-L2L3 stack comprises of a set of libraries which are commonly used by all
-other VNF's. The different components of this stack is shown in the picture
-below.
+------------
-.. image:: l2l3-components.png
+L2L3 stack comprises of a set of libraries which are commonly used by all
+other VNF's.
It comprises of following components.
- (i) Interface Manager
- (ii) RTM Lock Library
- (iii) ARP/ND & L2 adjacency Library
- (iv) L3 stack components
+ * Interface Manager
+ * RTM Lock Library
+ * ARP/ND & L2 adjacency Library
+ * L3 stack components
Interface Manager
-^^^^^^^^^^^^^^^^^
+-----------------
+
Interface manager is a set of API's which acts as a wrapper for the physical
interfaces initialization & population. This set of api's assists in configuring
an ethernet device, setting up TX & RX queues & starting of the devices. It
the interfaces present. It provides API for getting interface statistics.
It Provides wrapper APIs on top of DPDKs LAG(link Aggregation) APIs, This
-includes creating/deleting BOND interfaces, knowing the properties like Bond mode,
-xmit policy, link up delay, link monitor frequency.
+includes creating/deleting BOND interfaces, knowing the properties like Bond
+mode, xmit policy, link up delay, link monitor frequency.
RTM Lock Library
-^^^^^^^^^^^^^^^^^
+----------------
+
It provides basic lock & unlock functions which should be used for synchronization
purposes.
ARP/ND & L2 adjacency Library
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+-----------------------------
The ARP/ND state machine is given in the following diagram.
L3 stack Library
-^^^^^^^^^^^^^^^^^
+----------------
This library provides API for taking decision of whether pkt belongs to local
system or to forwarding.It Provides API for IPv4/IPv6 local packet out send
function. It Provides API for packet forwarding - LPM lookup function.
+
Common Code - Gateway routing
------------------------------
+=============================
Introduction
-^^^^^^^^^^^^
+------------
Gateway common code is created to support routing functionality for both
network and direct attached interfaces. It is supported for both IPv4 and
configuration.
Design
-^^^^^^
+------
+
The next hop IP and Port numbers are retrieved from the routing table based on
the destinantion IP addreess. The destination IP address anded with mask is
looked in the routing table for the match. The port/interface number which
number is bigger than the supported number ports/interface per application
configuration.
-
Reference routeadd command
-^^^^^^^^^^^^^^^^^^^^^^^^^^
+--------------------------
Following are typical reference commands and syntax for adding routes using the CLI.
::
-;routeadd <net/host> <port #> <ipv4 nhip address in decimal> <Mask/NotApplicable>
-routeadd net 0 202.16.100.20 0xffff0000
-routeadd net 1 172.16.40.20 0xffff0000
-routeadd host 0 202.16.100.20
-routeadd host 1 172.16.40.20
+ ;routeadd <net/host> <port #> <ipv4 nhip address in decimal> <Mask/NotApplicable>
+ routeadd net 0 202.16.100.20 0xffff0000
+ routeadd net 1 172.16.40.20 0xffff0000
+ routeadd host 0 202.16.100.20
+ routeadd host 1 172.16.40.20
-;routeadd <net/host> <port #> <ipv6 nhip address in hex> <Depth/NotApplicable>
-routeadd net 0 fec0::6a05:caff:fe30:21b0 64
-routeadd net 1 2012::6a05:caff:fe30:2081 64
-routeadd host 0 fec0::6a05:caff:fe30:21b0
-routeadd host 1 2012::6a05:caff:fe30:2081
+ ;routeadd <net/host> <port #> <ipv6 nhip address in hex> <Depth/NotApplicable>
+ routeadd net 0 fec0::6a05:caff:fe30:21b0 64
+ routeadd net 1 2012::6a05:caff:fe30:2081 64
+ routeadd host 0 fec0::6a05:caff:fe30:21b0
+ routeadd host 1 2012::6a05:caff:fe30:2081
vFW - Design
-=============
+============
Requirements
--------------
+------------
Following are the design requierments of the vFW.
performance.
High Level Design
--------------------
+-----------------
The Firewall performs basic filtering for malformed packets and dynamic packet
filtering incoming packets using the connection tracker library.
vCGNAPT - Design
-=================
+================
Introduction
-^^^^^^^^^^^^^^
+------------
+
This application implements vCGNAPT. The idea of vCGNAPT is to extend the life of
the service providers IPv4 network infrastructure and mitigate IPv4 address
exhaustion by using address and port translation in large scale. It processes the
using the IPv6 to IPv4 address translation and vice versa.
Scope
-^^^^^^
+-----
+
This application provides a standalone DPDK based high performance vCGNAPT
Virtual Network Function implementation.
Features
-^^^^^^^^^
+--------
+
The vCGNAPT VNF currently supports the following functionality:
• Static NAT
• Dynamic NAT
• Live Session tracking to NAT flow
• NAT64
-
High Level Design
-^^^^^^^^^^^^^^^^^^^
+-----------------
+
The Upstream path defines the traffic from Private to Public and the downstream
path defines the traffic from Public to Private. The vCGNAPT has same set of
components to process Upstream and Downstream traffic.
output port (either egress or ingress) or to drop the packet.
vCGNAPT Background
-^^^^^^^^^^^^^^^^^^^
+------------------
The idea of vCGNAPT is to extend the life of the service providers IPv4 network infrastructure
and mitigate IPv4 address exhaustion by using address and port translation in large scale.
-It processes the traffic in both the directions. ::
-+------------------+
-| +-----+
-| Private consumer | CPE ----
-| IPv4 traffic +-----+ |
-+------------------+ |
+It processes the traffic in both the directions.
+
+::
+
+ +------------------+
+ | +-----+
+ | Private consumer | CPE ----
+ | IPv4 traffic +-----+ |
+ +------------------+ |
| +-------------------+ +------------------+
| | +------------+ -
|-> - Private IPv4 - vCGNAPT - Public -
|-> - access network - NAT44 - IPv4 traffic -
| | +------------+ -
| +-------------------+ +------------------+
-+------------------+ |
-| +-----+ |
-| Private consumer - CPE ----
-| IPv4 traffic +-----+
-+------------------+
+ +------------------+ |
+ | +-----+ |
+ | Private consumer - CPE ----
+ | IPv4 traffic +-----+
+ +------------------+
Figure: vCGNAPT deployment in Service provider network
Components of vCGNAPT
---------------------
-In vCGNAPT, each component is constructed as a packet framework. It includes Master pipeline
-component, driver, load balancer pipeline component and vCGNAPT worker pipeline component. A
-pipeline framework is a collection of input ports, table(s), output ports and actions
-(functions).
+In vCGNAPT, each component is constructed as a packet framework. It includes
+Master pipeline component, driver, load balancer pipeline component and
+vCGNAPT worker pipeline component. A pipeline framework is a collection of
+input ports, table(s), output ports and actions (functions).
Receive and transmit driver
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-Packets will be received in bulk and provided to load balancer thread. The transmit takes
-packets from worker thread in a dedicated ring and sent to the hardware queue.
+^^^^^^^^^^^^^^^^^^^^^^^^^^^
+Packets will be received in bulk and provided to load balancer thread. The
+transmit takes packets from worker thread in a dedicated ring and sent to the
+hardware queue.
Master pipeline
^^^^^^^^^^^^^^^^
This component does not process any packets and should configure with Core 0,
to save cores for other components which processes traffic. The component
is responsible for:
+
1. Initializing each component of the Pipeline application in different threads
2. Providing CLI shell for the user
3. Propagating the commands from user to the corresponding components.
vCGNAPT - Static
------------------
+
The vCGNAPT component performs translation of private IP & port to public IP &
port at egress side and public IP & port to private IP & port at Ingress side
based on the NAT rules added to the pipeline Hash table. The NAT rules are
vCGNAPT- Dynamic
-----------------
-The vCGNAPT component performs translation of private IP & port to public IP & port
-at egress side and public IP & port to private IP & port at Ingress side based on the
-NAT rules added to the pipeline Hash table. Dynamic nature of vCGNAPT refers to the
-addition of NAT entries in the Hash table dynamically when new packet arrives. The NAT
-rules will be added to the Hash table automatically when there is no matching entry in
-the table and the packet is circulated through software queue. The packets that have a
-matching egress key or ingress key in the NAT table will be processed to change IP &
+
+The vCGNAPT component performs translation of private IP & port to public IP &
+port at egress side and public IP & port to private IP & port at Ingress side
+based on the NAT rules added to the pipeline Hash table. Dynamic nature of
+vCGNAPT refers to the addition of NAT entries in the Hash table dynamically
+when new packet arrives. The NAT rules will be added to the Hash table
+automatically when there is no matching entry in the table and the packet is
+circulated through software queue. The packets that have a matching egress
+key or ingress key in the NAT table will be processed to change IP &
port and will be forwarded to the output port defined in the entry.
-Dynamic vCGNAPT acts as static one too, we can do NAT entries statically. Static NAT
-entries port range must not conflict to dynamic NAT port range.
+Dynamic vCGNAPT acts as static one too, we can do NAT entries statically.
+Static NAT entries port range must not conflict to dynamic NAT port range.
+
+vCGNAPT Static Topology
+----------------------
-vCGNAPT Static Topology:
---------------------------
IXIA(Port 0)-->(Port 0)VNF(Port 1)-->(Port 1) IXIA
operation:
Egress --> The packets sent out from ixia(port 0) will be CGNAPTed to ixia(port 1).
Igress --> The packets sent out from ixia(port 1) will be CGNAPTed to ixia(port 0).
-vCGNAPT Dynamic Topology (UDP_REPLAY):
---------------------------------------
+vCGNAPT Dynamic Topology (UDP_REPLAY)
+-------------------------------------
+
IXIA(Port 0)-->(Port 0)VNF(Port 1)-->(Port 0)UDP_REPLAY
operation:
Egress --> The packets sent out from ixia will be CGNAPTed to L3FWD/L4REPLAY.
Ingress --> The L4REPLAY upon reception of packets (Private to Public Network),
will immediately replay back the traffic to IXIA interface. (Pub -->Priv).
-How to run L4Replay:
---------------------
- 1. After the installation of ISB on L4Replay server
- go to /opt/isb_bin
- 2. ./UDP_Replay -c core_mask -n no_of_channels(let it be as 2) -- -p PORT_MASK --config="(port,queue,lcore)"
- eg: ./UDP_Replay -c 0xf -n 4 -- -p 0x3 --config="(0,0,1)"
+How to run L4Replay
+-------------------
+
+After the installation of ISB on L4Replay server go to /opt/isb_bin and run the
+following command.
+
+::
+
+ ./UDP_Replay -c core_mask -n no_of_channels(let it be as 2) -- -p PORT_MASK --config="(port,queue,lcore)"
+ eg: ./UDP_Replay -c 0xf -n 4 -- -p 0x3 --config="(0,0,1)"
vACL - Design
-=================
+=============
Introduction
--------------
-This application implements Access Control List (ACL). ACL is typically used for rule
-based policy enforcement. It restricts access to a destination IP address/port based
-on various header fields, such as source IP address/port, destination IP address/port
-and protocol. It is built on top of DPDK and uses the packet framework infrastructure.
+This application implements Access Control List (ACL). ACL is typically used
+for rule based policy enforcement. It restricts access to a destination IP
+address/port based on various header fields, such as source IP address/port,
+destination IP address/port and protocol. It is built on top of DPDK and uses
+the packet framework infrastructure.
Scope
------
-This application provides a standalone DPDK based high performance ACL Virtual Network
-Function implementation.
+This application provides a standalone DPDK based high performance ACL Virtual
+Network Function implementation.
High Level Design
------------------
-The ACL Filter performs bulk filtering of incoming packets based on rules in current ruleset,
-discarding any packets not permitted by the rules. The mechanisms needed for building the
-rule database and performing lookups are provided by the DPDK API.
+The ACL Filter performs bulk filtering of incoming packets based on rules in
+current ruleset, discarding any packets not permitted by the rules. The
+mechanisms needed for building the rule database and performing lookups are
+provided by the DPDK API.
+
http://dpdk.org/doc/api/rte__acl_8h.html
-The Input FIFO contains all the incoming packets for ACL filtering. Packets will be dequeued
-from the FIFO in bulk for processing by the ACL. Packets will be enqueued to the output FIFO.
+The Input FIFO contains all the incoming packets for ACL filtering. Packets
+will be dequeued from the FIFO in bulk for processing by the ACL. Packets will
+be enqueued to the output FIFO.
+
The Input and Output FIFOs will be implemented using DPDK Ring Buffers.
-The DPDK ACL example: http://dpdk.org/doc/guides/sample_app_ug/l3_forward_access_ctrl.html
+The DPDK ACL example:
+
+http://dpdk.org/doc/guides/sample_app_ug/l3_forward_access_ctrl.html
+
#figure-ipv4-acl-rule contains a suitable syntax and parser for ACL rules.
Components of ACL
------------------
-In ACL, each component is constructed as a packet framework. It includes Master pipeline
-component, driver, load balancer pipeline component and ACL worker pipeline component. A
-pipeline framework is a collection of input ports, table(s), output ports and actions
-(functions).
+In ACL, each component is constructed as a packet framework. It includes
+Master pipeline component, driver, load balancer pipeline component and ACL
+worker pipeline component. A pipeline framework is a collection of input ports,
+table(s), output ports and actions (functions).
Receive and transmit driver
----------------------------
-Packets will be received in bulk and provided to load balancer thread. The transmit takes
-packets from worker thread in a dedicated ring and it is sent to the hardware queue.
+^^^^^^^^^^^^^^^^^^^^^^^^^^^
+Packets will be received in bulk and provided to load balancer thread. The
+transmit takes packets from worker thread in a dedicated ring and it is sent
+to the hardware queue.
Master
--------
+^^^^^^
This component does not process any packets and should configure with Core 0,
-to save cores for other components which processes traffic. The component
-is responsible for:
+to save cores for other components which processes traffic.
+
+The component is responsible for
+
1. Initializing each component of the Pipeline application in different threads
2. Providing CLI shell for the user
3. Propagating the commands from user to the corresponding components.
4. ARP and ICMP are handled here.
Load Balancer
---------------
+^^^^^^^^^^^^^
+
Load balancer is part of the Multi-Threaded ACL release which distributes
the flows to Multiple ACL worker threads.
load to active worker threads, thereby maintaining an affinity of flows to
worker threads.
-ACL
----
+ACL Pipeline
+^^^^^^^^^^^^
+
Visit the following link for DPDK ACL library implementation.
+
http://dpdk.org/doc/api/rte__acl_8h.html
http://dpdk.org/doc/guides/prog_guide/packet_classif_access_ctrl.html
Implements policy based packet forwarding
vPE - Design
-=============
+============
Introduction
----------------
+------------
+
An Edge Router typically sits between two networks such as the provider core
network and the provider access network. In the below diagram, Customer Edge
(CE) Router sits in the provider access network and MPLS cloud network
Programmers Guide, DPDK Sample Applications Guide.
Scope
-------
+-----
+
This application provides a standalone DPDK based high performance Provide
Edge Router Network Function implementation.
High Level Design
--------------------
+-----------------
+
The Edge Router application processes the traffic between Customer and the core
network.
The Upstream path defines the traffic from Customer to Core and the downstream
Components of vPE
-------------------
+
The vPE has downstream and upstream pipelines controlled by Master component.
Edge router processes two different types of traffic through pipelines
I. Downstream (Core-to-Customer)
5. Appends two MPLS labels in each outgoing packet.
Master Component
------------------
+^^^^^^^^^^^^^^^^
+
The Master component is part of all the IP Pipeline applications. This
component does not process any packets and should configure with Core0,
to save cores for other components which processes traffic. The component
3. Propagating the commands from user to the corresponding components.
Upstream and Downstream Pipelines
-----------------------------------
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
The downstream will have Firewall, Pass-through, Metering and Routing pipelines.
The upstream will have Pass-through and Routing pipelines.
To run the VNF, execute the following:
-isb_root/VNFs/vPE$ ./build/ip_pipeline -p 0x3 \
+
+::
+
+ isb_root/VNFs/vPE$ ./build/ip_pipeline -p 0x3 \
-f config/auto_combo_1_instances_1_queues_2_ports_v2.cfg \
-s config/auto_combo_1_instances_1_queues_2_ports_v2.txt
+
Prox - Packet pROcessing eXecution engine
==========================================
-Overview:
-----------
+Introduction
+------------
+
Packet pROcessing eXecution Engine (PROX) which is a DPDK application.
PROX can do operations on packets in a highly configurable manner.
The PROX application is also displaying performance statistics that can
The figure shows that each core is executing a set of tasks. Currently,
a task can be any one of the following:
+
1. Classify
2. Drop
3. Basic Forwarding (no touch)
14. ACL ...
One of the example configurations that is distributed with the source code is a
-Proof of Concept (PoC) implementation of a Broadband Network Gateway (BNG) with Quality of Service (QoS).
+Proof of Concept (PoC) implementation of a Broadband Network Gateway (BNG)
+with Quality of Service (QoS).
The software architecture for this PoC is presented below.
.. image:: images/prox-qo-img02.png
The display shows per task statistics through an ncurses interface.
-Statistics include: estimated idleness; per second statistics for packets received,
-transmitted or dropped; per core cache occupancy; cycles per packet.
+Statistics include: estimated idleness; per second statistics for packets
+received, transmitted or dropped; per core cache occupancy; cycles per packet.
These statistics can help pinpoint bottlenecks in the system.
This information can then be used to optimize the configuration.
Other features include debugging support, scripting,