Transcript ppt - apnic
Status Report of TWIX (TaiWan Internet eXchange) Data Communication Business Group Chunghwa Telecom Speaker: Eugene L. Chang September, 2002 Agenda A Quick View of IX’s in Taiwan TaiWan Internet eXchange (TWIX) OAM (Operation and Maintenance) of TWIX TWIX Network Architecture TWIX Public Peering TWIX Private Peering TWIX Components TWIX Services (Provisions, Facilities, Maintenance) General Requirements for Participants Installation Procedures and access stats TWIX Members TWIX Traffics Current IX Issues in Taiwan TWIX Futures A Quick View of IX’s in Taiwan 3 Major IX centers in Taiwan: Number of IX members: TWIX (TaiWan Internet eXchange) TPIX (TaiPei Internet eXchange) TWNAP (TaiWan Network Access Point) TWIX :38 TPIX : 13 TWNAP : 16 Aggregated Traffics: TWIX : max/avg = 1400/1100 Mbps TPIX : max/avg = 90/ 60 Mbps TWNAP : (unknown) OAM of TWIX Enabling ISPs in Taiwan to exchange traffics in a secure and reliable way through the deployment of the scalable interconnection system. Service provided since November 21, 1997. Provides Multi-Lateral Peering (MLP) and BiLateral Peering (BLP) Members exchange route updates and extended attributes conforming to BGP4 (RFC-1771). OAM of TWIX (cont’d) Each route updates are reflected to 2 route servers (route reflectors). Every member who joined MLP agrees to the interconnect/provisioning policies enlisted by TWIX. TWIX Architecture TWIX Route Reflector Router (Primary) TWIX Route Reflector Router (Secondary) Ethernet Switch Ethernet Switch FE,1/3GE,or GE ISP Colocated Router ISP FE,1/3GE,or GE ISP Colocated Router Cross Connect FE,1/3GE,or GE ISP Colocated Router CSU/DSU CSU/DSU CSU/DSU DS1,DS3,or STM-1 DS1,DS3,or STM-1 DS1,DS3,or STM-1 CSU/DSU CSU/DSU CSU/DSU ISP ISP TWIX Public Peering Route Reflector Router (Primary) Route Reflector Router (Secondary) Ethernet Switch Ethernet Switch Link for Public Peering ISP 1 Colocated Border Router ISP 2 Colocated Border Router ISP N Colocated Border Router HiNet TWIX Private Peering Public Peering HiNet ISP 1 Colocated Border Router Private Peering Between HiNet and ISP 1 (A layer-1/2 Cross-connect) TWIX Components (1) Ethernet Switch (E/S) Catalyst 6500’s Provides 10/100/1000 Mbps access. Peering members are asked to colocate members’ own border routers in TWIX. (2) Routing Reflector (RR) Cisco 3640’s (Primary + Secondary) Supports: RFC 1966: BGP Route Reflection: An Alternative to Full-Mesh IBGP RFC 1997: BGP Communities Attribute Public peering members can only send/receive updates/ advertisements via RRs. Route dampening. (3) Network Management System (NMS) : Real-time management of the facilities. Logging of inactive/flapped neighbors. Abnormal behaviors detection (e.g. excessive prefixes) TWIX Components (cont’d) (4) Web server : Used as troubleshooting interface for all TWIX members. System maintenance and/or other important messages are posted. Periodic traffic-monitoring for each IX port from the members. TWIX members can check traffic utilization through secure logon. Looking-glass webpage helps to isolate/workout the troubles. TWIX Services I. Provisioning 1. Dedicated account manager and implement engineer are assigned in charge of consulting and interconnection issues before the installation to shorten the provision lead-time. 2. After TWIX members colocate their equipments (i.e. border routers) in TWIX, the TWIX staff will complete the necessary configuration and cabling tasks regarding to the peering (either public peering or cross-connect) in less than two working days. TWIX Services II. Facility 1. Electricity and Air Condition Equipped with AC UPS power supply. Diesel-powered generators are used for backup. Monitoring of temperature/humidity in TWIX. 2. Security on the room access TWIX is in 24-hour security surveillance and monitoring. Two-level of entrance controls. Other necessary measures from disastrous accidents. (e.g. fire) 3. Networking Hardware Central equipments are all designed and implemented with redundancy. TWIX Services III. Maintenance 1. Call for Troubleshooting Provides 7x24 troubleshooting and help-desk. Helps to identify and coordinate the personnel needed to workout the outages. 2. Technical Consulting Features with qualified technical staff to co-work with the members. Consulting services are provided in pre-/post-installation phases. 3. Information The TWIX website (www.twix.net.tw) provides the traffic statistics, member list, contact personnel, system announcements, etc. TWIX Services III. Maintenance (continued) 4. Useful Tools TWIX provides looking-glass path verification mechanism to ease the tasks of troubles isolation. Functions include: (a) show ip bgp (b) show ip bgp summary (c) show ip bgp dampened-paths (d) show ip bgp flap-statistics (e) ping (f) trace General Requirements for Participants The following requirements apply to candidate who apply for joining TWIX as a member to peering with other members : 1a. The candidate must have the type-II license, granted by Directorate General of Telecommunications (DGT) of the Ministry of Transportation and Communications (MOTC). 1b. For the non-profit/experimental candidate, the special-permission paper, issued by MOTC, is required. 2. Candidate must have legal AS number and IP prefixes assigned directly from the NIC. 3. When TWIX has scaled to multiple locations, candidate apply for multi-homed interconnection to TWIX should never detour the intraAS traffics via TWIX. Installation Procedures After candidate’s request is admitted, the following technical requirements must be met to fulfill the installation procedures: 1. Peering members can apply for DS1, DS3, STM-1 or STM-4 leased line connecting to members’ border router in TWIX. 2. TWIX provides the access port on Ethernet Switch, from which connecting to members’ border routers. 3. The access speed can be 10 Mbps, 100 Mbps, 1/3 Gigabit-ethernet (333 Mbps) or full GE speed. 4. The routing protocol must comply to BGP version-4 (RFC-1771), in together with the basic functions/features. TWIX Access Stats Most Participants apply DS3 circuits (or above) to TWIX, up to 88%. The Number of Circuits Terminated: 66 • STM-4 : 1 • STM-1 : 20 • DS3 : 37 • DS1 : 8 T1 12% T3 56% STM-4 2% STM-1 30% TWIX Members 38 participants till Aug, 2002 HiNet(3462) TWNAP(7655) GCNet(4662) PCSNet(17422) Gamania(7532) AsiaInfra(17502) TTN(7541) TFN(9924) ERANet(9310) ETWEBS(9415) SYSNet(4783) SeederNet(7538) GigaMedia(9416) Dwins(17416) EPOWER(18109) SeedNet(4780) TradeVAN(9671) PAGICNet(4781) ISLNet(7649) InfoServe(9739) FETnet(9674) APOL(7482) TISNet(7535) AGC(3549) Unigate(9831) CNLINK(7540) AT&T(2687) Symphox(9216) KGEx(9918) NCIC(9919) TATNET(17418) AboveNet(10133) GSN(4782) TANet(1659) Intergrand(9917) DYXNet(9244) SINGTEL(4845) KBT (18042) TWIX Traffics • Before 26 August, 2002 • Max/Avg Volumn : 1.4/1.1 Gbps • This stats account for the aggregated inbound and outbound traffic volumns. Current IX Issues The maintenance of colocated border router when external leased circuits failed. The incongruent requirements/policies regarding to extended BGP attributes among members. The coordination of bandwidth increasing demands from members to members. The policies of flapped routes. TWIX Futures Provides 10 Gbit access for future growth. Scaled to multiple IX locations. Provides out-of-band management facilities. Promoting the regional IXP (IX Provider) IPv6 IX trial and commercial services. The re-examine of IX members’ qualification to explore more aggressive business models.