OIT Networking & Monitoring Services

Server Traffic Statistics


  1. Overview
  2. Art and Archaeology
  3. Astrophysics
  4. Atmospheric and Oceanic Sciences
  5. Chemical and Biological Engineering
  6. Chemistry
  7. Civil and Environmental Engineering
  8. Classics
  9. Computer Science
  10. Ecology and Evolutionary Biology
  11. Electrical Engineering
  12. Facilities
  13. Finance and Treasury
  14. Firestone Library
  15. Genomics
  16. Geosciences
  17. German
  18. Health Services
  19. Industrial Relations
  20. Keller Center for Innovation in Engineering Education
  21. Life Safety and Security Systems (LSSS) Blue Alert Services
  22. Life Safety and Security Systems (LSSS) Campus Video Monitoring System (CVMS)
  23. Mathematics
  24. McGraw Center for Teaching and Learning
  25. Mechanical and Aerospace Engineering
  26. Molecular Biology
  27. OIT Administrative Information Services
  28. OIT Instructional Support Services
  29. OIT Computational Science and Engineering Support (CSES)
  30. OIT Dell Blade Services
  31. OIT Exadata Services
  32. OIT LDAP Services
  33. OIT Mail Services
  34. OIT Media Converters
  35. OIT Networking & Monitoring Services
  36. OIT Network Infrastructure Terminal Servers
  37. OIT NFS and CIFS Services
  38. OIT Research Computing
  39. OIT Telecommunication Services
  40. OIT Tivoli Storage Manager (TSM) Services
  41. OIT VMware ESX Services
  42. OIT Web Services
  43. OIT Windows Services
  44. Physics
  45. Politics
  46. Princeton Institute for Computational Science and Engineering
  47. Princeton Neuroscience Institute
  48. PRISM
  49. Public Safety
  50. School of Engineering and Applied Science
  51. Miscellaneous and Uncategorized Services


OIT monitors traffic volume on OIT Ethernet switch ports in the OIT Network Core at 87 Prospect Avenue, and the OIT data centers at New South, the HPCRC (151 Forrestal Road), and Lewis Science Library.

This document includes the switch ports in those locations, excluding those ports attached to devices which are part of the network infrastructure. We also exclude ports attached to devices which are firewalls, load balancers with multiple logical or physical interfaces, OIT Remote Access Servers, and part of the OIT Wireless infrastructure. The switch ports attached to devices are included on other documents; see OIT Networking & Monitoring Services: Statistics.

We normally collect traffic data from the network infrastructure (e.g. an Ethernet switch) to which the device is attached, as opposed to collecting traffic data directly from a host. As a result, the traffic graphed as "incoming" (in GREEN) represents traffic entering the network port from the host, while the traffic graphed as "outgoing" (in BLUE) represents traffic leaving the network port to to the host.

For each monitored target, you may view graphs showing the traffic volume in and out of the corresponding network interface over several recent time periods (the past 31 hours, 8 days, 31 days, and 365 days). In most cases, volume is measured by bit rate and packet rate.

The monitoring is performed with mrtg, rrdtool, and mrtg-rrd.

Except where noted otherwise, links listed below are attached to VLAN 128 (princeton-net).

In a few cases, we also monitor other statistics provided by the server (in addition to, or instead of, information provided by the Ethernet switch port).

The display you see will be refreshed automatically by your Web browser every five minutes.

As many of the devices below are OIT devices or are managed by OIT, they have been grouped roughly by the service they provide. Non-OIT devices are usually grouped by the department associated with the device. The remainder appear in a Miscellaneous and Uncategorized Services group at the end.

If you adminster a device that is missing from this page, and the device is attached to an OIT Ethernet switch port in OIT Network Core at 87 Prospect Avenue, or the OIT data centers at New South, the HPCRC, or Lewis Science Library, please place a request to have the device added to this page. Do so by using Services Now (SN@P) to submit a request for the Service Offering "Performance Trending" with the Action "Modify/Update." (Turnaround time for such updates is typically over a month.) Before placing such a request, first be sure that the device is accurately registered in the Host Database; incorrectly registered (and unregistered) hardware addresses are often the reason devices do not appear in this page.

If you administer one of the devices below and believe it is listed in the wrong group, or that the name is no longer correct (we use canonical Host Database names based upon the device's hardware address), please place a request to have the entry below updated as needed. Do so by using Services Now (SN@P) to submit a request for the Service Offering "Performance Trending" with the Action "Modify/Update". (Turnaround time for such change requests is typically over a month.) This page is manually maintained, so adds, moves, deletions, and changes to devices may not be reflected here until you advise us. Be advised that we rely on each device's hardware address to determine the name that appears below and on the graphs; it is important that the hardware address be accurately registered in the Host Database to avoid mis-labelled information below.

A service of OIT Networking & Monitoring Services
The Office of Information Technology,
Princeton University