Interconnect Update: Pac*Bell

Kent England

Table of Contents

• Stan Barber's Notes
• September 1995 NANOG Home Page

Stan Barber's Notes

ATM testing

The Updated Kentrox and Cisco AIP for CPE are being tested

• ASDU<->ADSU
  • Achieves 34Mbps thru-put
  • Dataloss in ATM switch, ADSU transmit buffers and HSSI output buffers
• ADSU->AIP
  • Consistent with ADSU<->ADSU
• AIP-> AIP
  • Achieves 34 Mbps
  • No dataloss with upt to 500Kbps
• AIP->ADSU
  • Consistent with AIP->AIP

• Kentrox works, AIP w/o rate control works
• AIP and ASDU Inter-Operate

There are alot of different knobs to twiddle and this takes alot of time

ATM Switch Evaluation

• New project team assembled on 7/1
• Deployment of an independent NAP solution
• NAP Specific performance requirements have been defined
• ATM group has been involved

• Switch Evaluation Parameters
  • Significant buffer capabilities
  • Port density
  • Backplane speeds
  • Reliabaility & Redudency
  • Central Office Viability
  • Manageability (stats and management)
• Interim Solution Critical Path
  • Currently working with BellCore wot finalize the test & specification & scenarios
  • Intensive evaluation in mid-Auguest

Multilateral peering agreement

• First Draft on 8 August 1995
  • Includes Route Advertisements
  • Traffic Exchange
  • routing path selection
  • Does not include transit obligations or any restrictiosn on independent
  • Makes use of IRR
  • Process for New Participants and Departing Participants
  • Ongoing meetings

NAP Participation

• SprintLink is Operational
• AT&T will be operational soon
• Exodus and Well are operational
• InfoNet is in progress

For more information: http://www.pacbell.com/Products/NAP/index.html

Statistics were not available for this talk.

Guy Almes asks, Given the improvement in ATM capabilities for TCP/IP over the last 12 months, when do you [Kent] expect ATM to be preferred for a NAP over FDDI?

Kent says there are a number of answers. One is that some providers will never want to use ATM. Another is that for faster than 100Mb/sec connections, ATM is the way to do it. With some developments on the horizon, there will be some new features coming that will make thing better.

Steve asks how many providers are on the FDDI ring: RS, ANS, MCI, SPRINT, NET99/AGIS

Bill asks if the ATM switch has adequate instrumentation for assisting PAC*BELL in providing information for helping clients determine when to upgrade their connection. Kent said that is now an important part of the current ATM switch evaluation. Extracting the data is another problem. Currently, a proxy server is being configured to extract data from the proprietary interface and present it as SNMP.