State of the Internet:NSPs:Sprintlink
Jim Steinhardt
Table of Contents
There are no muliple DS-3 links in Sprintlink at this time.
POP design
- Two backbone routers -- Each one has a backbone link in it.
- Two FDDI switches
- Two FDDI hubs
- Multiple Access routers (some access routers are connected directly
to the switches...some are connected to the hubs).
Recent additions/changes
- Addition of 4 new POPs
- Pair of FDDI switches at each sites
- Out-of-band network access to routers/equipment
- Standard high-speed offerings (6/12/45Mb) (6/12 is inverse muxed)
- Added backbone DS3s and fifty 7513 routers
- Added a new NOC for Sprint IP services
- Removed all AGS+ routers
- 2Mb SSPs in all backbone routers
- Partitioned legacy FDDI hub rings
- Sparing/Replenishment Program
- Improved network management visability
- Removal of ethernet and serial cards from backbone routers
- Private interconnects with other NSPs
Performance
- No real bottlenecks within Sprinlink.
- MAE-E/W links are heavily utilized.
Challanges
- Client Expectations
- Service levels -- Service guarantees -- Can't do it
- Performance -- Can't do that it either
- Scalable Technology
- Router Port density
- Maximum bandwidth and pps per router