Notes on some TCP/IP WAN activities in xSU ------------------------------------------ Activities in the field of TCP/IP networking include SU domain coordination, assignment of IP numbers to ex-Soviet organizations, development and operation of IP-network in SU. SU domain coordination and assignment of IP numbers are carried out by RelTeam Ltd. private company. xSU/RU NIC is hosted by RelTeam Ltd., it assigns IP numbers on behalf of RIPE NCC. RelTeam Ltd. is also the main developer of all networking software in EUnet/RELCOM network, and the coordinator of IP activities in EUnet/RELCOM. Here follow some notes on current state and future of TCP/IP networking in EUnet/RELCOM network operated by Relcom Corp. Currently EUnet/RELCOM network connects approximately 3000 sites all over xSU. EUnet/RELCOM includes approximately 70 regional nodes (backbones) in all former USSR republics and major cities. Currently most links between nodes and sites in RELCOM are UUCP links. International link now is UUCP connection to EUNet via host techno.fuug.fi in Finland. The growth of the network, significant delays because of UUCP links, inability to provide net services going beyond e-mail forced us to begin the turn from UUCP to TCP/IP network. The main problems we are facing are lack of at least medium speed digital channels (64K), of appropriate routers (cisco's are still under COCOM restrictions for us) and of properly trained staff at every EUnet/RELCOM node. Nevertheless, we try to solve all this problems (probably with the exception of the last one :-)). Starting from the end of 1991 the kernel of xSU IP network has begun to grow. Currently pilot IP network connects 11 LANs in Moscow, Moscow region and Barnaul (Altai). The links are mostly voice grade leased lines equipped with V32bis modems and dialup links (with permanent connection) via high quality phone service called ISKRA (former communist's phone network). ISKRA phone network connects almost all major xSU cities and its quality permits reliable V32bis modem connections. Currently Moscow backbone consists of 3 routers at EUnet/RELCOM main hub (KIAE premises), ISKRA POP and Moscow Long Distance Exchange. All other networks which form current IP network kernel are connected to these routers. Plans call for the establishment of international IP link to EUnet cisco in Amsterdam through the router at Moscow Long Distance Echange in just a few weeks. Voice grade leased line which will form the link is going to be equipped with ZyXEL modems at both ends. That will allow to exchange data at speed up to 16800 bps (uncompressed). During the first stage of IP network development in xSU we plan to connect all major EUnet/RELCOM nodes via voice grade leased lines and ISKRA dialup links. In the near future (until the end of 1992) we hope to establish up to 20 IP links via leased lines and several other links via ISKRA, these links will form the global IP network connecting at least 50 LANs. Regional backbones will in their turn form intraregional IP networks in such areas as Siberia, Ural, Altai, St.Petersburg, Ukraine, Far East and others. Now few technical details on currently used software and hardware. Lack of appropriate routers forced us to develop our own solutions. First of all we developed CSLIP software which is capable to use several physical links for one network interface. Such software allows us to achieve acceptable bandwidth (for example ~6KB/sec FTP for ASCII files) in the absence of medium and high speed links, and provide good backup in case if one of the links fails. We plan to develop in the nearest future the same software for PPP protocol. Routing software currently used is "routed" but it has become unacceptable due to significant growth of RIP traffic over the links. All major routers (Moscow backbone routers first) will be upgraded to use "gated" software (the latest "gated-alpha" and gated-3.0 when it will be released). Using gated will allow to use BGP-3 between major border routers, highly reducing routing traffic. Using BGP-3 will also allow simple routing between xSU AS and Amsterdam cisco. Future plans based on utilizing gated software includes switching to OSPF as IGRP. Until that time networks will still speak RIP to backbone routers. Router's built-in software for "firewall-alike" functionality, IP accounting and priority queues is also under development and will be installed soon. Router's hardware currently consists of 386/33 (486/50 planned), 8/16 channel DigiBoards and Ethernet card(s). We also plan to install appropriate 64K interface. Contacts for EUnet/RELCOM & RelTeam Ltd.: Nickolay Saukh - nms@ussr.EU.net Valery Bardin - fox@ussr.EU.net Oleg Tabarovsky - olg@ussr.EU.net