Debian-ISP Group, I operate an ISP and make it my main focus to operate a network with stable and reliable connectivity. I've looked/tested several network monitoring packages but am coming up dry for great solutions. I am seeking a reliable method of passively monitoring my network (via span-port or similar) to watch bidirectional TCP session traffic attributes such as; response time, retransmits, unsuccessful handshakes, and unusual window-size decreases, inconstant TTLs, session drops, unanswered requests, etc.
Monitoring these type of attributes gives a reliable metric for what peers/ASNs/transit paths/end points/etc are having specific problems opposed to the unreliable ping response and daemon monitoring techniques commonly used in the industry. Does anyone have any comments/experience/recommendations regarding a solution to polling this type of data, and a displaying it in a central presentation interface (similar to what ntop/openview/concord/ciscoworks have). My only request is that the software is open source, displays tcp attrib's per ASN/network or similar, and runs on debian :p So far the best resource I've found for this subject is the tools listed at http://www.caida.org/tools/ but I'm not completely satisfied with what I've found. Thanks for your assistance in advance, -Matt -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
