• Apps_aspathtree

aspathtree

Availability and IPv6 support

Description

ASpath-tree is a tool to perform IPv6 network operation analysis based on the snapshot of the BGP routing table on IPv6 routers running BGP. Originally Aspath-tree designed to be used by an IPv6 site involved in the experimentation of the BGP protocol inside the 6Bone network, it now supports a set of features useful within any operational IPv6 network, which makes use of BGP. The tool currently supports Cisco/Juniper/Zebra routers.

Based on a single snapshot of the IPv6 BGP table, ASpath-tree automatically generates a set of html pages providing a graphical view of the routing paths towards the other IPv6 connected domains. Additionally it provides pages for the detection of anomalous route entries announced through BGP (invalid prefixes and unaggregated prefixes), anomalous AS numbers (i.e. reserved or private) in use and a set of summary information such as:

• The number of route entries (valid/total/suppressed/damped/history)
• The number of AS in table (total, originating only, originating/transit, transit only, private and reserved)
• The number of active AS paths
• The number of active BGP neighbours (i.e. announcing routing information)
• An analysis of the network size, in terms of AS distances
• The number of circulating prefixes (total, 6Bone pTLAs, sTLAs, 6to4, others)

Based on repeated snapshots of the IPv6 BGP table at different points in time, ASpath-tree automatically generates html pages reporting on BGP routing stability (last 24 hours) for:

• 6Bone pTLAs
• RIR's assigned sTLAs Application domains in the 6Net management framework ASpath-tree will be very useful to verify the routing

tables of the backbone, to check every configuration and to have some statistics about the backbone routers.

Comments

tested and used in 6NET project

Usage information

Categories

CategoryApps, CategoryAppstesting_and_monitoring

Source of information

http://www.6net.org