15b58fe6a1
LBNL Internet path characterization tool PR: ports/8588 Submitted by: Josh Gilliam <josh@quick.net>
40 lines
1.0 KiB
Plaintext
40 lines
1.0 KiB
Plaintext
Pathchar finds bandwidth, delay, average queue and loss rate
|
|
of hops between source and destination.
|
|
|
|
This tool, written by Van Jacobson (author of traceroute), is
|
|
alpha quality. Source code is not available.
|
|
|
|
Command line arguments
|
|
-a:
|
|
-A:
|
|
-d:
|
|
-D: filename for debug output
|
|
-f: initial hop #
|
|
-F: probefilter
|
|
-i: intersampletime
|
|
-l: max ttl
|
|
-L: locality
|
|
-m: maxsize maximum packet size in bytes
|
|
(if absent, pathchar determines path MTU)
|
|
-M: minsize default: smallest possible
|
|
(want large differential between max and min size,
|
|
o/w a node w/queue will impact later nodes )
|
|
-n: don't dns-resolve
|
|
-p: port @@?
|
|
-q: #queries, default 32
|
|
-Q: bytes,
|
|
if (-), packet size increment per query, defaults to 92.
|
|
if (+), number of sizes, defaults to 32
|
|
-s: lsrr?
|
|
-S: fit spacing
|
|
-t: tos
|
|
-v: verbose mode
|
|
-V: verbose?
|
|
-w: seconds wait time
|
|
|
|
"Please report problems to pathchar@ee.lbl.gov. But please
|
|
don't ask questions -- if it doesn't make sense, wait for the
|
|
beta release. Thanks. Have fun."
|
|
|
|
http://www.caida.org/Pathchar/
|