SwiNOG-3 Experience with cable technology Michel Renfer, CCNA Network Systems Engineer 19. Sept. 2001

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Presentation transcript:

SwiNOG-3 Experience with cable technology Michel Renfer, CCNA Network Systems Engineer 19. Sept

LAN Services AG... LAN Services is a regional carrier who operates in the region between Biel, Berne and Olten. Upstream connectivity is currently provided by Cable&Wireless (AS1273), Sunrise (AS6730) and IP- Plus (AS3303) with a cumulative bandwidth of 24 Mbit/s. Connections between our nodes are mostly built on Besonet ATM backbone. (Bern Solothurn Netz AG). Most Besonet shareholders are also QuickLine partners.

Besonet... Besonet has built a dark fibre network in their coverage area. Transport network for tv/radio signals, video, voice and data.

QuickLine... QuickLine is a partnership model from LAN Services in cooperation with several cable operators to provide internet access over cable. Cable operator (QuickLine partner) LAN Services AG CMTS operating Operation of the IP network Cable plant operating Provisioning / Billing / Implementation LAN Services AG

QuickLine partner... GGS (Oensingen) GA Region Grenchen Industrielle Betriebe Langenthal EWK Herzogenbuchsee Energie Seeland AG (Lyss) EW Aarberg Localnet AG (Burgdorf) Gem. Münchenbuchsee Gem. Belp

CMTS in use Terayon CMTS with S-CDMA (7 systems) Cisco uBR CMTS with DOCSIS 1.0+ (2 systems) Teralink ControllerTeralink Gateway Cisco uBR 7223Cisco uBR 7114

Major layer 1 / 2 issues Not all cable plants are already upgraded to support 2- way communications. Inhouse installations are often in a catastrophic state. Customers who are making their own HF installations. Grounding problems S-CDMA and DOCSIS are not compatible (Note: The DOCSIS 2.0 standard will take parts of both protocols and provide backward compatibility)

... and what we/our partners do! Fast 2-way upgrade of all remaining 1-way cable plants Improving the stability of the cable plants Adding filters for bad homes Adding filters to avoid grounding problems Moving the upstream channels over 30 MHz so most of the ingress issues will go away. Adding (strong!?) regulations which homes can and which cannot connected without modifications to the 2-way cable plant.

Major layer 3 issues... Bandwidth usage!!!! Wrong configuration of customer end devices (most customers dosent have any know-how about networking). Security (Script kiddies playing with tools like back orifice,...) Delay sensitive traffic like online gaming

... and what we do! Adding more upstream bandwidth Finding the best way to secure... a.) our customers b.) our network and equipement c.) the outside world Strict handling of our AUP when issues with our customers occurs. QoS enhancements to avoid problems with delay sensitive traffic

Further developement Connecting new QuickLine partners to our network. Few partners needed a second CMTS which will deployed on top of the Cisco uBR plattform. Replacing remaining leased lines with dark fibre connections provided trough our cable partners. Connecting AS-LAN to TIX Improving connectivity to other cable internet providers trough direct peerings. MPLS Trials of new services like video on demand,...

Appendix A LAN Services AGhttp:// QuickLinehttp:// Besonethttp:// Cisco uBRhttp:// Terayonhttp:// Cablelabshttp://