ICFA Networking Task Force Workshop at CERN 23-25 March 1998 “Key updates since September 1997” in Hungary

Piroska Giese

KFKI-RMKI

European traffic

• Hungary has a 10 Mbps connection to TEN-34 since May 1997 • The available capacity for the

HUNG

arian

A

cademy and

R

esearch

NET

work (

HUNGARNET

) is 5 Mbps • The country-wide IP backbone is called

HBONE

HBONE geographical Topology

The country-wide Backbone HBONE

• the HBONE has a 30 Mbps ATM (PSV) core • most of the sites are connected via leased line with the speed of 64kbps - 1Mbps • the KFKI campus is connected via 2 Mbps microwave

HBONE regional nodes and links

Transatlantic traffic

• via EuropaNET up to June 1997 • via direct MCI connection from June to November 1997 with a speed of 800 kbps • via TEN-34 US link since November 1997 The available capacity for the Hungarian R&D network is

5 Mbps

Effect of the TEN-34 US link on the RMKI’s connectivity • Network monitoring is based on ICMP ping (

the RMKI is a data collection site

) • the average round trip delay and packet loss decreased to US sites • the packet loss increased to CERN and to European sites The problem is: The frequent break of the TEN-34 US link No backup is provided by DANTE

Period of Ping 15.10.1997 - 28.02.1998

The counted average value of the ping results

Traffic load control

• The MRTG is running since January 1997 • The external traffic from/to KFKI campus is public available http://www.kfki.hu/mrtg/kfki-cisco.kfki.hu.2.html

External traffic from/to Hungary

• The Budapest - Vienna link is more then 50% loaded • The overview of line’s load is seen on the TEN-34 Weather Map http://www.dante.net/operations/statistics/weathermap.html

TEN-34 Weather Map