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ISPs make the Internet… Why you don’t want to be one. Dennis Boylan dennis@eni.net. World Domination: Mission Status. Internet Acceptance: Established Distribution Network: Established Corporate Acceptance: Beginning. What are ISPs?. Internet Service Provider
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ISPs make the Internet…Why you don’t want to be one Dennis Boylan dennis@eni.net
World Domination:Mission Status • Internet Acceptance: Established • Distribution Network: Established • Corporate Acceptance: Beginning
What are ISPs? • Internet Service Provider • Inter-network service provider • Network Operators
Customer Connections • Dialup • Analog (v.90) • Digital (ISDN) • Dedicated • Analog (v.90) • DSL (ADSL, IDSL, HDSL) • 56K, 64K, Fractional DS1, Fractional DS3
Customer Connections continued • Dedicated (continued) • Bridged • Fractional OC3, Fractional OC12 • Encapsulation • ATM, Frame, POSIP, PPP, SMDS, LAN (FDDI, Ethernet, Token Ring)
Backbone Connections • DS1 • DS3 • OC3c • OC12c • OC48c • OC192 • OC768
Services • DNS • E-mail • Dialup • News • Web • Caching
NAPs • Network Access Point • Connects 2 or more networks • Public NAPS • Private NAPS
Major Public NAPs • MAE-East, MAE-East ATM • MAE-West, MAE-West ATM • Ameritech NAP • SPRINT NAP • PAIX • PB NAP (ATM) • CIX
NAPS continuedMinor/New • MAE-LA • SIX • MAE-Central (Dallas) • AIX • Many Many Others
NAP Connections • ATM • DS1 through OC12c • FDDI (half/full duplex) • Ethernet/Fast Ethernet(half/full duplex) • HDLC/Frame Relay • DS1 through OC3
BGP • Border Gateway Protocol • Generates route announcements • Requires an AS number • Currently over 10,000 AS numbers • Provides for access lists
Levels of ISPs • Tier 1 • Present at 2 or more Public NAPS • Own backbone between NAPS • Full peering with all other Tier 1 • Does not pay for transit
Levels of ISPs continued • Non-Level 1 • Any ISP that pays for transit • Not all ISPs are equal
Problems with Services • Hardware failures • Software failures • Misconfiguration • Maintenance windows
Problems with Telcos • Fiber cuts • Circuit ordering • Circuit capacity • Billing
Problems with Telcos continued • Maintenance • Redundancy • Busy signals • Circuit Grooming
Problems with Customers • 7x24 Support • Billing/collection • SPAM (UBE) • Denial of service • Volume of traffic
Problems with ARIN/InterNIC • Lost registrations • Lost changes • Double billing • More paperwork • Time to complete requests
Problems with FCC/Gov’t • Additional Taxes • Additional Regulations • Does not understand the industry
Problem with Facilities • Power • Environmental (HVAC) • Security Access • Telco Access
Problems with Personnel • Continual training • Lack of qualified people • Cost of qualified people