Networking in Italy

Davide Salomoni

The GARR Network

GARR: Gruppo Armonizzazione Reti Ricerca (1988) - Participants: Universities, INFN, CNR, other research institutes in Italy

Non-profit organization Evolution:

GARR-1 (TDM: DECnet IV/V, IP, SNA, X.25 - 1988) GARR-2 (mostly IP, max bandwidth 2Mbit/s - 1995) GARR-B (IP only, 34Mbit/s - 1998)

GARR-B

High-bandwidth infrastructure (34-155M) based on ATM VPs (CBR), with high-speed links to European research network and the Internet

15 PoP throughout Italy - the PoPs are in the Telecom premises, but the network is managed by the GARR consortium (practically speaking, at the moment, by INFN)

User’s access to the network from 64K to 34M, w/ several technologies (ATM, Frame Relay, Leased lines)

Sharing of a single physical 34M to a PoP between different users via ATM VP/VCs

GARR-B Management

INFN is (temporarily) managing the GARR-B network The GARR-B central management office is in Rome The GARR-B NOC is @ INFN/CNAF (Bologna)

IP configuration and routing, HW/SW monitoring and troubleshooting, trouble tickets, interface to the GARR-B Access Port Managers, reports, Routing Registry, Internet Registry (LIR)

• http://www.noc.garr.it (NOC)• http://www.garr.it/LIR (LIR)

Planning of GARR-C Management of the international connections and

participation to international committees TEN-155 and related research projects G7-GIBN (IT2)

Network Management

Public tools Traffic statistics Trouble Tickets The Looking Glass Traceroute Server Weather Maps

Private tools Noc On Line (NOCOL) On-line Hardware Inventory Allocation of private AS Automated tools and robots for LIR and RR-related tasks

Research

Phased introduction of native multicasting into the network (PIM-SM with MBGP peering, connected to the existing DVMRP cloud)

Planning and installation of other services directly connected to the PoPs news web caching

QoS, in collaboration with European projects (TF-TANT) IntServ (RSVP) and mapping to ATM QoS DiffServ (IP Precedence and “true” DiffServ - see draft-ietf-diffserv-framework-02.txt)

GARR-BFrankfurt

NY

Princeton (ESnet)

The GARR-B backbone

POP - Bologna

RCRTRC RT

POP - Roma

POP - Milano

RC

RT

POP - Napoli

RC

RT

TEN-155

DE

US (NY)ESnet

Princeton

Access to GARR-B

ATMATM

GARR-B PoP

RCRT

User yUser y

User wUser w

User zUser z

User xUser x

International or Domestic PeerInternational or Domestic Peer

A Transit PoP

GARR-B PoPRC

RT

Mgmt Router ISDN

GARR-BEthernet

Fast Ethernet

ATM

Physical Topology

POP - Bologna

RC

RT

RC

RT

POP - Roma

POP - Milano

RC RT

POP - Napoli

RC RT

TEN-155

DE

ESnet

Princeton

US (NY)

IP Routing in GARR-B

Napoli-RTRouteReflector

Roma-RTRouteReflector

Bologna-RTRouteReflector

Milano-RTRouteReflector

Routing protocols:•IBGP•OSPF

Milano-RCRouteReflector Client

Bologna-RCRouteReflector Client

Roma-RCRouteReflector Client

Napoli-RCRouteReflector Client

Torino-RCRouteReflector Client

Migration from GARR-2

Napoli-RT

Roma-RT

Bologna-RT

Milano-RT

Routing Protocols:•IBGP•OSPF•EBGP

Milano-RC

ISPs

NAP

AS-CILEA

ISP

Roma-RC

AS-ROMA

NAP INROMA

ISP

ISPs

Bologna-RC AS-CINECA

ISP

Use of Private AS

AS-P3

AS-P2AS-P1

AS-137

ISP

RU

RU

RU

RT

RT

RC

10.0.0.0

A) “remove-private-as” on RC

AS-P1 sees 10.0.0.0 AS-137AS-P3 sees 10.0.0.0 AS-137ISP sees 10.0.0.0 AS-137RT sees 10.0.0.0 AS-P2

B) “remove-private-as” on RT

AS-P1 sees 10.0.0.0 AS-P2AS-P3 sees 10.0.0.0 AS-P2ISP sees 10.0.0.0 AS-137RT sees 10.0.0.0 AS-P2

AS-137 sends to AS-Px: ^$ AS-P1, AS-P3 get from AS-137: ^137$

AS-137 sends to AS-Px: ^$ and AS-PyAS-P1, AS-P3 get from AS-137: .*

*

International Connectivity

ATM link @155M to Frankfurt (TEN-155) - separate VCs for US (New York) @45M -- access to “the

Internet” (excluding ESnet!) Europe @100M -- access to TEN-155

and European peersT1 (1.5M) to Princeton -- used just to

connect GARR to ESnet

GARR-SLAC?

Currently, using the 1.5M from GARR to Princeton -- obviously not sufficient for BaBar

Agreements permitting ($$$), it’s technically feasible (right now) to have direct access from GARR to ESnet @45M or more using e.g. an ATM VC; US endpoint? e.g. NY (ESnet PoP) SLAC? (dedicated link to BaBar)

What are we to transfer via network to a regional center? DSTs? Size? Who extracts the DSTs (real-time?) from

Objectivity? ESD+AOD+Tags? ~2.2MB/sec = 17.6Mbit/sec