mrtparse 2.1.0

MRT format data parser

Introduction

mrtparse is a module to read and analyze the MRT format data.

The MRT format can be used to export routing protocol messages, state changes, and routing information base contents, and is defined in RFC6396.

Programs like FRRouting, Quagga, Zebra, BIRD, OpenBGPD and PyRT can dump the MRT format data.

You can also download archives from the Route Views Projects, RIPE NCC.

Support

Python Version

If you want your code to run faster, you should use PyPy or PyPy3.

• Python2
• Python3
• PyPy
• PyPy3

MRT Type

Name	Value
TABLE_DUMP	12
TABLE_DUMP_V2	13
BGP4MP	16
BGP4MP_ET	17

TABLE_DUMP Subtype

Name	Value
AFI_IPv4	1
AFI_IPv6	2

TABLE_DUMP_V2 Subtype

Name	Value
PEER_INDEX_TABLE	1
RIB_IPV4_UNICAST	2
RIB_IPV4_MULTICAST	3
RIB_IPV6_UNICAST	4
RIB_IPV6_MULTICAST	5
RIB_GENERIC	6
RIB_IPV4_UNICAST_ADDPATH	8
RIB_IPV4_MULTICAST_ADDPATH	9
RIB_IPV6_UNICAST_ADDPATH	10
RIB_IPV6_MULTICAST_ADDPATH	11
RIB_GENERIC_ADDPATH	12

BGP4MP/BGP4MP_ET Subtype

Name	Value
BGP4MP_STATE_CHANGE	0
BGP4MP_MESSAGE	1
BGP4MP_MESSAGE_AS4	4
BGP4MP_STATE_CHANGE_AS4	5
BGP4MP_MESSAGE_LOCAL	6
BGP4MP_MESSAGE_AS4_LOCAL	7
BGP4MP_MESSAGE_ADDPATH	8
BGP4MP_MESSAGE_AS4_ADDPATH	9
BGP4MP_MESSAGE_LOCAL_ADDPATH	10
BGP4MP_MESSAGE_AS4_LOCAL_ADDPATH	11

BGP Capability

Name	Value
Multiprotocol Extensions for BGP-4	1
Route Refresh Capability for BGP-4	2
Outbound Route Filtering Capability	3
Graceful Restart Capability	64
Support for 4-octet AS number capability	65
ADD-PATH Capability	69

BGP Attribute

Name	Value
ORIGIN	1
AS_PATH	2
NEXT_HOP	3
MULTI_EXIT_DISC	4
LOCAL_PREF	5
ATOMIC_AGGREGATE	6
AGGREGATOR	7
COMMUNITY	8
ORIGINATOR_ID	9
CLUSTER_LIST	10
MP_REACH_NLRI	14
MP_UNREACH_NLRI	15
EXTENDED COMMUNITIES	16
AS4_PATH	17
AS4_AGGREGATOR	18
AIGP	26
LARGE_COMMUNITY	32
ATTR_SET	128

Installation

$ pip install mrtparse

or

$ git clone https://github.com/t2mune/mrtparse.git
$ cd mrtparse
$ python setup.py install

Usage

First, import the module.

from mrtparse import *

or

import mrtparse

And pass a MRT format data as a filepath string or file object to a class Reader().

It is also supported gzip and bzip2 format.

You can retrieve each entry from the returned object using a loop and then process it.

for entry in Reader(f):
    # Parsed data is stored in "entry.data"
    <statements>

We have prepared some example scripts and sample data in “examples” and “samples” directory.

Authors

Tetsumune KISO [e-mail]

Yoshiyuki YAMAUCHI [e-mail]

Nobuhiro ITOU [e-mail]

License

Licensed under the Apache License, Version 2.0

Copyright (C) 2022 Tetsumune KISO