K-20 Education Network
K-20 TOPC Minimum Technical Standards

As Approved by TOPC on May 30, 1996.

1. Internet/Intranet Services

TCP/IP based Internet backbone infrastructure
Open Internet routing protocols including either OSPF or IS-IS for internal routing and BGP-4 for external routing among participating organizations
SNMP for network monitoring and management
Internet multicast support: either DVMRP* or PIM*
MPEG 1 & 2 based compressed video and audio for Internet demand video and broadcast distribution
World Wide Web (WWW) based server infrastructure including Harvest style information caching servers for improving WWW performance and minimizing Internet backbone utilization costs
Internet compatible listserv style mailing list facilities
MBONE* and RSVP* oriented services for packetized multimedia applications with manageable service levels
ITU H.323* LAN interactive video

ITU H.320 and H.261 circuit switched interactive video
ITU T.120 data collaboration
ISDN PRI (National ISDN-2) and BRI (National ISDN-1) switched interfaces
ISDN multirate (H0-384, H11-1536, NxDS0)
BONDING Mode 1 inverse multiplexing
Standard telecom industry SONET technology underlying the core transport functions (OC-12, OC-3, STS-1, DS-3, and DS-1 interfaces)

MPEG-2 based compressed video and audio for demand video and broadcast distribution
RS-250C compliant transport
Video I/O directly compatible with analog component and serial digital component (D1) standards
Adjustable compression and data rates to vary video quality from S-VHS to serial digital component (D1)
Closed-circuit, on-demand monitoring of all transported broadcast-quality MPEG video streams from multiple points
Sufficient uplink power and low noise transmission to optimize link budgets for small to medium-sized antennas

* An asterick indicates an evolving standard that is recognized as an important technical direction for the K-20 network.