Traffic Engineering (TE) consists of measuring network performance and modifying the network configuration to meet performance goals. Some traffic engineering takes place over long periods as connection data rates are upgraded or equipment is added or re-arranged. Other TE actions consist of automated prioritization and traffic shaping and policing for data flows as they are happening.
CIS TE goals are to optimize network performance for the following usages (in priority order):
- Research, teaching and administrative missions of the University and associated agencies
- Other University and System sponsored activities
- Incidental use by members of the University community
- Other activities not restricted by regulation or law
Specific TE Areas
IPX
IPX can be (mis-)configured to make extensive use of IP Multicast packets as if it were link-layer broadcasts. IP multicast is disabled to any area where IPX IP multicast is configured. Assistance is available to system administrators wanting to better configure their systems.Firewall
CIS maintains a firewall that restricts certain types of traffic for security and performance.ResNet
Network usage within the Residence Halls (RESNET) has engendered several different kinds of performance problems, caused primarily by demand exceeding available network capacity. The initial scheme with published standards and manual monitoring did not control disproportionate usage. In Summer, 2001, RESNET building connections were upgraded and traffic between Residence Halls segregated from other campus traffic. RESNET traffic to/from the Internet and campus was set up on a separate link. RESNET/Internet traffic rose until congestion impacted priority usage. An automated traffic shaping system was installed in Fall, 2001, on the RESNET/Internet link. This device limits bandwith taken up by most peer-to-peer protocols so that other services can be useful.H.323
To Be Announced