OIT Networking & Monitoring Services

Campus Aggregation Switches Traffic Statistics

We monitor traffic volume on selected aggregation switch interfaces.

For each monitored interface, you may view graphs showing the traffic volume in and out of that 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.

Traffic graphed as "incoming" (in GREEN) represents traffic entering the monitored network interface, while the traffic graphed as "outgoing" (in BLUE) represents traffic leaving the network interface.

We also monitor some switches for CPU load and/or free memory.

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

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

The switch interfaces we are monitoring are listed below, sorted by switch.

Building Aggregation Switches

These switches are those that aggregate several buildings together. Each building aggregation switch then uplinks to one of the core switches.

Mixed Use Aggregation Switches

Building BDF Switches

Each of these switches acts as a central switch within a single building. The switch is typically the network's point of entry (BDF) to the building, and is uplinked to a campus core switch. While occasionally hosts may be attached directly to a BDF switch, usually the BDF's downlinks are to other other switches (or occassionally to multiport repeaters) throughout the building, which are in turn connected to individual hosts.

Most building BDF switches do not appear here.

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