WIDE NLA1 Activity Report
Brief Intrduction about WIDE-NLA1
WIDE-JP was allocated sTLA address (2001:200::/35) space
from APNIC in 1999/08/13. And after some discussions, WIDE-JP
decide to allocate sTLA address for its customers (mainly
for accademic/non-profit organizaions). WIDE-NLA1 is part
of NLA1 allocation from WIDE-JP and its ipv6 prefix is
2001:200:0100::/40.
Assignment History
WIDE-NLA1 has started customer allocation from
2000/01/07 and there allocated 22 organizations(2001/01/06).
NUI-ORG-NET 2001:0200:0140::/48 komatsu tunnel 2000/01/14
SONYCSL-NET 2001:0200:0120::/48 otemachi ATM 2000/01/14
EHIME-UNIV-NET 2001:0200:0150::/48 hiroshima tunnel 2000/02/02
UTNET6 2001:0200:0180::/48 nezu tunnel 2000/02/02
Uwajima Internet Community 2001:0200:0121::/48 otemachi tunnel 2000/02/03
Uwajima Municipal Hospital 2001:0200:0122::/48 otemachi tunnel 2000/02/03
N+I Shownet 2001:0200:0123::/48 otemachi ether 2000/02/08
JSAT-NET 2001:0200:0124::/48 otemachi ATM 2000/03/30
WASEDA-NET 2001:0200:0125::/48 otemachi tunnel 2000/04/09
TEU-NET 2001:0200:01a8::/48 hachioji tunnel 2000/04/19
TNT-WIDE 2001:0200:0148::/48 kyoto ether 2000/06/09
YDC-WIDE-IPV6-01 2001:0200:0101::/48 Tokyo Serial 2000/07/24
NABECHAN.ORG 2001:0200:0126::/48 otemachi tunnel 2000/07/24
RESEARCHLAB-NET 2001:0200:0127::/48 otemachi tunnel 2000/07/26
SAGA-UNIV 2001:0200:0160::/48 fujisawa ATM 2000/07/30
R2-NET 2001:0200:0128::/48 otemachi tunnel 2000/10/09
CYBER-MAGIC-NET 2001:0200:0129::/48 otemachi tunnel 2000/10/09
NOKIA-JAPAN 2001:0200:0102::/48 tokyo serial 2000/10/13
GBLX-NET 2001:0200:012a::/48 otemachi tunnel 2000/10/16
PRODUCEGATE-NET 2001:0200:012b::/48 otemachi tunnel 2000/11/20
WIDE-XCAST-NET 2001:0200:0161::/48 fujisawa tunnel 2000/11/21
Network Topology
Bassically WIDE IPv6 network consists of WIDE-POPs that are
located all over Japan and LAX and provide IPv6 connectivity
such as OC-3 ATM, Gigabit Ethernet, FastEthernet and IPv6 over
IPv4 tunnels(mainly for customers). As the following figure shows,
almost POPs are connected with OC-3 ATM (and of course native
IPv6 connection) ,partly using JGN
(Japan Gigabit Network, which is national fund testbed network).
And we are now try to cease IPv6 over IPv6 tunnels within POPs.
Routing
WIDE-NLA1 is currently using 3 routing protocols in its IPv6 netwoks.
- BGP4+ : eBGP peering with another pTLA/sTLA holders and some NLA1s
- OSPFv3 : most POPs are exchanging IGP routes with OSPFv3 including zebra
distributions.
- RIPng : POPs and customers are mainly exchanging its routes with RIPng
and POPs are redistribute customers routes via OSPFv3.
Trouble
In the term of Routing, OSPFv3 is not stable at the begging of its experience
(2000/05-) and it happed routing loops/missing routes due to implementation issue.
Kengo Nagahashi
Last modified: Sun Jan 21 14:56:29 JST 2001