Proposal for Deployment ofInternational Multi-Layer
Network- TransPAC2 Update Jin Tanaka
APAN-JP/KDDI/NICTtanaka@kddnet.ad.jp
Network Engineering Workshop
APAN26 New Zealand Meeting
7th Aug. 2008

Need for Multi-Layer/HybridNetwork•

R&E application has been diversified into multiple types in recent years•

But, Layer3 routing technology has been not changed•

Would you say that current Layer3 routing is best technology forapplications?

•In such situation, international lower-layer network such as GLIF hasemerged•

In addition, the emergence of DCN heighten the need for lower-layernetwork over multi-domains•

Using multi-Layer network technology could help us design a network
suitable for each application

Optical - Ethernet - Packet
Multi-LayerPacket

IPHDLC/PPPEthernet

10G LAN-PHYOptical

10G WAN-PHY

1G PHYGFP (Generic Framing Procedure)

SONET/SDH
Optical FiberMulti-Layer/Hybrid Network••••

Internet2(US), GEANT2(EU), KOREN(KR), SINET3(JP), and other R&E networks, has
introduced multi-Layer network and has started operation.
Provide flexible networks to meet user demand.
Aim to provide communication capability that is service-oriented: DCN, bandwidth ondemand.
But there is no R&E network providing international fully multi-Layered connection withJapan.

IP Layer

Large User

IP Layer

RouterSmall User

Small User

Large User
MPLS

MPLSCircuit

Optical Switch
MSPP

Ethernet

DWDM

Ethernet

Big ScienceCircuit

Big Science

Optical Switch
MSPP

APAN-JP L2/L3 network over JGN2plus/APII/
TransPAC2
IP Connection
Ethernet Connection

Layer3/IP

Layer2/Ethernet

Options of International Low-Layer Connection••

Most “popular” international circuit is SONET/SDH
Create the Multi-layer/Hybrid Network over SONET/SDH circuit

Layer-1 switch with SONET/SDH• It’s effective in high-speed circuits
over OC-12, OC48

• Appearance of a MSPP(Multi-serviceProvisioning Platform) equipment andGFP mapping technology enable us
to translate SONET/SDH to ethernet
more effectivity• Dedicated circuit• Tough to obtain specific circuit• CERNET/CSTNETMPLS over POS• Provide ethernet connectivity by

L2VPN/MPLS function on edge router

10G WAN-PHY• OC-192 SONET circuit provideethernet connection by 10GigEWANPHY• It’s effective in low-speed circuitsup L2/L3 multi-layer network on• Depend on methods of router vender • Set
the 10GigE-WANPHY- Juniper CCC/Martini/Kompella orCisco Martini• Available switch is limited• Shared Link
• Shared Link

Layer-1 LightPath- Examination Items of SONET/SDH •SONET/SDH circuit must be subdivided to VC3(50M) - VC4 (155M) unitsfor providing dedicated bandwidth guaranteed circuit service•Or, utilize a “Clear Channel” technology which enable to transmit H1/H2byte in a SONET line over head•

You have to request such a circuit specification to an international circuit carrier- Do not Concatenate! We concatenate the circuit ourselves by VCAT(Virtual Concatenation)!

•Provide the GigE lightpath under SONET/SDH via VCAT & GFP mapping onMSPP•It might be a good method for reducing the cost due to expensive POS
Router Interface•

It seems that still have difficulty operating such a particular circuit andproviding from international carrier in Asian region
VC4
VC4
VC4
VC4

VC4-7v = 1.05G -> 1GigE!"#$%!
VC4

VCAT + GFP MappingInter-domain/AS L2VPN/MPLS- Effectivity -•Provide point-to-point ethernet connection over LSP which is made by
MPLS technology on IP/Layer-3 network•A good solution for APAN region, there are few high-speed circuit such as
OC-48 or OC-192•

Juniper, Cisco, and other vendors is supporting L2VPN/MPLS (Kompella/Martini/CCC)•

Set up MPLS connection statically out of consideration of dynamic routing/protection- Routing among multi-domain is carried out by IDC(inter-domain controller)s of DCN over L2VPN/MPLS path••Get results of the interoperability of inter-domain MPLS over inter-AS
Challenge to hard operation and accumulate the operation know-how
IDCIDCIDC

DCN network
L2VPN/MPLS network

Current Status and Future
Possibility• Ethernet connection with Layer-1 switch with SONET/SDH- CERNET- CSTNET- TEIN2-HK• Ethernet connection with 10G WAN-PHY- KOREN• MPLS over POS- TransPAC2- APAN-TW- TEIN2-POPs- ASTI
Network are complete for the DCN connection
Coming Soon!!
Suggestion

Summary• Multi-layer/Hybrid networks are intended to provide a flexible mix of IP

routed service and “lower layer services”. And it can respond quickly to user/
application requirements and requests to access both the IP routed and/orlower layer services.
- Deterministic network performance, dedicated network resources, guaranteed network capacity, freedom
to use protocols other than (congestion control friendly) TCP, privacy/security• If we can deploy the “innovative” DCN service over lower layer network, wecan establish user on-demand international path. It leads to the promotion of
the international collaboration on R&E networks.

• This will require the international Inter-domain multi-layer networking. Though
there are various options to make Inter-domain multi-layer network, it is still
heavily dependent on specification of circuit provided international carrier.

• L2VPN/MPLS is a good solution to make multi-layer connection over current
APAN network which has many low-speed circuits.

• APAN-JP/TransPAC2 will becomes one model, and progress the operation

knowhow of L2VPN/MPLS between Inter-domain/inter-AS to APAN network.

Thank You!
For DCN connection with APAN-JP
Ask the APAN-JP NOC
ops”at”jp.apan.net