Topology Tools Taxonomy
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This section gives more detailed information about specific topology tools.
| co-sponsored by: |  |
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Subcategory: BGP
| URL: |
http://lab.verat.net/Jaspvi |
| Contact: |
Milos Prodanovic (Milos.Prodanovic@verat.net) |
| Overview: |
J.A.S.P.V.I.(Java Autonomous System Path Visualization Interface)
is tool that will help you to see internet
Autonomous System connections. It enables you to view current internet
(bgp4) connections, browse your neighbour BGP connections, predict
'what if' scenarios, show you multiple networks, and traceroute
as-path, for both IPv4 and IPv6.
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| Access: |
Fully functional version available.
Soon there will be freely downloadable version.
Screenshots
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| URL: |
http://mogwai.frnog.org/sysctl/
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| Contact: |
Philippe Bourcier (philippe@sysctl.org)
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| Overview: |
GASP (Graphical Autonomous System Path) generates a logical map showing the
AS path from multiple AS located in Europe and Northern America to a specific network with
geographical details. This tool can be used for detection of
missing/bogus routes, transition on non-transit links, approximation of the
distance and latency to next AS. The output is shown as realtime generated webpage with comprehensive path mapping.
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| Access: |
Try it now
Other projects at http://www.sysctl.org
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Subcategory: Macroscopic Views
| URL: |
http://www.cs.washington.edu/research/networking/rocketfuel/ |
| Contact: |
Neil Spring (nspring@cs.washington.edu)
Project mailing list (rocketfuel@cs.washington.edu) |
| Overview: |
Ally (the Alias Resolver) is used to determine whether two IP
addresses belong to interfaces on the same router. By sending
UDP datagrams to each address and collecting the responses,
Ally outputs and prints the IP identifiers, source IP
addresses and remaining TTLs. It then resolves aliases by using heuristics
to match these discovered addresses.
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| Access: |
Freely downloadable |
| URL: |
http://www.caida.org/tools/measurement/iffinder/ |
| Contact: |
Author: Ken Keys (kkeys@caida.org) |
| Overview: | Iffinder is capable of finding
interfaces that belong to the same router. It sends a single UDP
packet probe to an unused port on an interface address. Many routers
will reply to such a packet with an ICMP PORT UNREACHABLE
error. Probing one interface and getting this error from a different
interface therefore proves that the two interfaces belong to the same
network node.
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| Access: |
downloadable by CAIDA members only |
| URL: |
http://www.caida.org/tools/measurement/skitter/ |
| Contact: |
skitter-info @ caida.org |
| Overview: |
Skitter is an active measurement tool whose primary goal is visualization of global network topology. Skitter probes paths from multiple sources to a set of destinations that carefully stratify the current IPv4 address space. Measurements allow production of directed graphs that represent a significant fraction of macroscopic Internet connectivity.
Skitter acquires infrastructure-wide (global) connectivity information by measuring forward IP paths (the "hops") from a source to many destinations. It also collects round trip time (RTT) and path data by incrementing the "time to live" (TTL) of each IP packet header and recording replies from each router (or hop) leading to the destination host. Skitter probes with ICMP echo requests.
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| Access: |
Available only to CAIDA members. Data is available to researchers
by request. |
Subcategory: Microscopic Views
| URL: |
http://www.caida.org/tools/visualization/otter |
| Contact: |
info @ caida.org |
| Overview: |
Otter is used for visualizing arbitrary network data expressed as a set of nodes, links, or paths. Otter has been used to visualize multicast and unicast topology datases, core BGP routing tables, reachability and delay measurements, SNMP data, and website directory structures.
Otter's strength lies in its data independence: it can handle any formatted data set consisting of links, nodes, or paths.
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| Access: |
Freely downloadable. |
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Cooperative Association for Internet Data Analysis (CAIDA)