ipv6 @rcts2 [email protected] geant-tf, rome, 31/03/2003
TRANSCRIPT
PORTUGAL
+ Small Country+ 10 million people+ Lisbon: 2 million+ Oporto: 1 million+ Few Telcos = Circuits very expensive!+ But GSM did great!+ FCCN manages Research Network+ STM-4 Connection to Geant (in Madrid)+ One IXP, Gigapix, managed by FCCN+ ccTLD .pt also managed by FCCN
Portugal
History – 6bone
History - Linux
Addressing
• 2001:690::/32 for RCTS2
• 2001:07f8:000a::/48 for GIGAPIX (IXP)
Addressing Plan
• /48s for each Access Point. (Universities, Labs, …)• /56s for each of the 12.000 schools and libraries
connected to the Internet@School Network• /126 for point-to-point backbone links• We reserved some bits for future use• We did preemptive allocations to each access
(94 /48s), can be seen on RIPEdb.
BGP4+
• Over 12 Tunnels and Native (RNP & Gigapix)
• Getting around 430 prefixes (3FFE:: and 2001::) from peers
• Filtering (using prefix-lists)
SPACE.NET C&WCALADAN
VIAGENIE
DIVEOAS15180
SWITCH
TELEPACAS3243
AS559
AS10566
AS20834 AS5539 AS3561
RCCN (PT)AS1930
RENATERAS2200
Hurricane ElectricAS6939
BGP4+
TUNN1
TUNN23TUNN33TUNN30
TUNN4
TUNN34
TUNN35
BRITISH TELECOMAS1752TUNN36
09/03/2003, v.2.1,[email protected]
RNPAS1916
TUNN37
(LINK CANTINO)
VODAFONEAS12337
(GIGAPIX)
TISCALIAS3257
TUNN26
NERIMAS13193
TUNN39
EnterZoneAS13944
TUNN27
(GIGAPIX)
BGP4+ Map
External Routing
• Access to prefixes through
• Access to : difficult, due to topology: high roundtrips
• M40 will connect to GEANT, one C3640 is connecting to RNP natively (Brazil)
Cantino Link
• Dual-Stack (IPv4/IPv6)• 2Mbps Circuit (E1)• First direct connection between Europe and
South America (Lisbon-Rio) for R&D purposes
• RNP has several ASes, and already got a 2001:: prefix from ARIN
• Traffic Testing over IPv6 using MGEN6
Internal Routing
• Current IGP: IS-IS
• Running on 4 Junipers (3xM10 and 1xM40) and around a dozen Ciscos (1x12xxx, 3x75xx, 3x36xx, 6x26xx, …)
• OSPFv3, in the future (3Q 2003?)
• The network is basically «two stars», with its centers located in Lisbon and Oporto.
Topology
• Core (Lisbon-Oporto) running on GigEthernet over a Lambda, and using a POS STM-1 as a backup.
• Two Tunnel Gateways (in Lisbon and Oporto).
• Members joining the IPv6 network establish a tunnel to both tunnel gateways. Keepalives are configured on all ends.
Network Diagram
Members
Tunnels Traffic (Comparative)
Tunnels Traffic (Comparative)
Topology - Known Problems #1
• Our Cisco 72xx (Access Routers) are not running an IOS version with IPv6 support: Main reason is T family not being accepted as best solution in terms of stability
Topology - Known Problems #2
• Some Academic Network members don’t have support contracts with some Vendors (ex:Cisco).
This way they can’t get newer/improved IOS version with IPv6 support
Testbed
• ~50% of our IPv6 routers are part of the TESTBED
• Not easy to get memory upgrades for Cisco routers!!! (but already got some!)
• Old PCs (i586/i686) reassigned to IPv6 testing are running Linux (Redhat)
Testing
• Equipments: Cisco, 6WIND, PC/Zebra• Native connections over IPv6:
– ATM (E3 and STM-1)– Giga/Fast/Ethernet– Serial/V.35– Packet Over Sonet– E1– HSSI
Transition Mechanisms
• We are providing a 6to4 gateway to the world (2002:C188:2F6::1).
• We will focus on NAT-PT.
• Battery of tests being written (delayed due to backbone upgrade).
Gigapix
• 18 Members
• IPv6: Started March 2003, with 3 members peering natively.
Gigapix
• 3 more LIRs in Portugal already have a RIPE allocation (KPN, ONI and NFSI)
• The first two are already on the IXP, but only on IPv4.
• NFSI is planning to connect soon (both on IPv4 and IPv6)
Work to do!
• Transition Mechanisms
• PT ccTLD IPv6 support supervision
• Direct the Backbone to native connections
• “Key-on-hand” IPv6 solutions for members
• Security
• Marketing
