aspath_graph

aspath_graph converts raw ASPATHs to NetJSON Graph

NetJSON is a series of JSON schema for defining networks, NetJSON Graph being specific to defining how nodes interconnect. “aspath_graph” uses this to represent BGP autonomous systems as ‘nodes’ and how they connect from the perspective of INPUT

This project aims to make it easy to go from BGP AS PATHs in their raw form to something NetJSON Graph understands. This makes it easy to add properties to nodes based on their label or ASN and display/handle them differently on the frontend in CSS/JS/HTML.

Contents:
- 1 aspath_graph
  - 1.1 Quickstart
  - 1.2 Embedding In Existing Webpages
  - 1.3 Usage

Quickstart

For a really quick start, clone the repo and check out the examples folder. It has a paths text-file for how I saw PATHs to 1.0.0.0/12+ at the time.

For your own data, there are two input methods currently:

netconf to Junos devices
Plain text file of ASPATHs

Good news is that the second one is very flexible. Here are a few ways you can create it:

birdc 'show route table <name> all'|grep BGP\.as_path|egrep -o '[0-9]+ [0-9 ]+' > aspaths.txt

ssh junosrtr "show route protocol bgp | match \"AS path\"" | sed -e 's/.*AS path: //g' > aspaths.txt

Embedding In Existing Webpages

NetJSON Graph is pretty simple to embed into existing pages and theme, thus so is getting your AS nodes there. I’ll refer you to the README and docs for the main project, but below is a small example.

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <link href="https://rawgit.com/interop-dev/netjsongraph.js/master/src/netjsongraph.css" rel="stylesheet">
    <link href="https://rawgit.com/interop-dev/netjsongraph.js/master/src/netjsongraph-theme.css" rel="stylesheet">
</head>
<body>
<div id="wrap">
    <div class="nav">
        <!-- Nav stuff... -->
    </div>
    <div class="main-container"> <!-- Imagine this your usual main container -->

        <!-- You probably have several things down here... -->
        <div id="legend">
            <!-- You can even add a legend, there's an example on the main project site -->
        </div>
        <div class="bgp-ases"></div>

    </div>
</div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.12/d3.min.js"></script>
<script src="https://rawgit.com/interop-dev/netjsongraph.js/master/src/netjsongraph.js"></script>
<script>
    d3.netJsonGraph(
        "example.json", {
            el: '.bgp-ases',
            metadata: false,
            charge: -250,
            labelDy: '-1.18em',
        }
    );
</script>
</body>
</html>

Usage

$ aspath_graph --help    Usage: aspath_graph [OPTIONS] INPUT

Options:
  -v, --version                   Show the version and exit.
  -m, --mode [junos-netconf|txt]  Mode to use
  -o, --output FILENAME           Output file
  --asdot                         Whether to add ASDOT notation
  --ownas TEXT                    Apply perspective of own AS at the beginning
                                  of PATHS
  --runserver                     Run local server on 8000
  --user TEXT                     Only used for relevant modes
  --nopassword                    If using a login mode, this will enable
                                  public key auth
  --yaml FILENAME                 YAML for mapping and ignoring ASes
  --pprint                        Pretty print JSON
  -h, --help                      Show this message and exit.

INPUT can either be a device or file depending on value of MODE. This defaults to a file. (txt)

OUTPUT can be ‘-’ to send results to STDOUT.

If not passing ‘–nopassword’, you will be prompted for a password for the relevant modes.

When using “–asdot” to provide ASDOT notation, the raw ASPLAIN will also be provided on the node - just under the “raw” attribute.

YAML can be formatted as such: (Note that “ignore” must ONLY be ASPLAIN)

label_map:
    65001: SFO
    65002: ORD
    65003: NYC
    65003.1: NYC-R1
    65003.2: NYC-R2

ignore:
    - 7224
    - 9059

By default, ASDOT will be labeled according to the firsthalf. Eg, if 65001 is configured to be labeled as DFW, 65001.211 will appear as DFW-R21. This assumes your ToR ASN is your spine ASN + (racknumber*10+1) - to disable this simply set APG_ASDOT_RAW to true/yes/anything.

Any of the supported options can be passed via ENV by upping the case, replacing ‘-’ with ‘_’, and prefixing with ‘APG’. Eg, ‘APG_MODE’

Release files for aspath_graph 1.3

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

Source distribution (sdist)

Source distribution for aspath_graph 1.3
File	Size	Uploaded
aspath_graph-1.3.tar.gz	66.8 kB	Feb 24, 2016	Details

Release files / aspath_graph-1.3.tar.gz

Download URL	aspath_graph-1.3.tar.gz
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Upload date	Feb 24, 2016
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