IBM SoftLayer Diret Link patterns

© 2015 IBM Corporation

IBM SoftLayerDirect Link Patterns

2016/11/12Cloud Computing

IBM JapanTomoyuki Niijima

Pattern S: Direct Link CSP, BGP in between CERs and XCRs

CER1

CER2

XCR1

XCR2

Vyatta1

Vyatta2

SoftLayerPrivate Network

On-premise server

SoftLayerserver

Customer’s address network

SoftLayer’s address network

VIPVIP

172.16.x.0/24

BGP:XCR2 > CER2: 10.x.y.0/26CER2 > XCR2: 172.16.x.0/24


10.256.c.d/30

10.256.a.b/30

Customer’s Intranet

© 2016 IBM Corporation 2

10.x.y.0/26

Pattern A: BGP in between CERs and XCRs + Single GRE tunnel over a Direct Link CSP

CER1

CER2

XCR1

XCR2

Vyatta1

Vyatta2



On-premise server

SoftLayerserver



VIPVIP

172.16.x.0/24

GRE tunnel

10.256.c.d/30

10.256.a.b/30




10.x.y.0/26

Pattern L: Static route in between CERs and XCRs + double GRE tunnel with OSPF over a Direct Link CSP

CER1

CER2

XCR1

XCR2

Vyatta1

Vyatta2



On-premise server

SoftLayerserver



VIP

10.256.c.d/30

10.256.a.b/30

GRE tunnel

OSPF

OSPF

OSPF

OSPF




10.x.y.0/26

Pattern B: a Direct Link for Cloud and closed IP-VPN

CER1 XCR1

Vyatta1

Vyatta2

ClosedIP-VPN


On-premise server

SoftLayerserver



VIP

10.256.a.b/30

172.16.x.0/24

ECX

VC


BGP:XCR1 > CER1: 10.x.y.0/26CER1 > XCR1: 172.16.x.0/24 10.x.y.0/26

Pattern K: GRE tunnel over a Direct Link for Cloud and closed IP-VPN

CER1 XCR1

Vyatta1

Vyatta2

ClosedIP-VPN


On-premise server

SoftLayerserver



VIP

10.256.a.b/30

GRE tunnel

172.16.x.0/24

ECX

VC


BGP:XCR1 > CER1: 10.x.y.0/26CER1 > XCR1: 172.16.x.0/24 10.x.y.0/26

Pattern T: Direct Link NSP

CER1 XCR1SoftLayerPrivate Network

SoftLayerserver



172.16.x.0/24

10.256.a.b/30


On-premise server

Wide EthernetService



10.x.y.0/26


Obsolete patterns

The following patterns are obsolete because BGP is mandatory for each Direct Link connections now. No more subnets for the customer’s side will be provided by SoftLayer. Instead, routes for customer side network can be advertised through BGP.

Pattern S: Direct Link CSP, BGP in between CERs and XCRs

CER1

CER2

XCR1

XCR2

Vyatta1

Vyatta2


On-premise server

SoftLayerserver



VIPVIP

172.16.x.0/24

BGP:XCR2 > CER2: 10.0.0.0/8CER2 > XCR2: 172.16.x.0/24


10.256.c.d/30

10.256.a.b/30



Caution: This pattern is obsolete.

Pattern A: BGP in between CERs and XCRs + Single GRE tunnel over a Direct Link CSP

CER1

CER2

XCR1

XCR2

Vyatta1

Vyatta2



On-premise server

SoftLayerserver



VIPVIP

172.16.x.0/24


BGP:XCR1 > CER1: 10.0.0.0/8CER1 > XCR1: 172.16.x.0/24 GRE tunnel

10.256.c.d/30

10.256.a.b/30



Pattern T: Direct Link NSP + NAT

CER1 XCR1SoftLayerPrivate Network

SoftLayerserver



172.16.x.0/24

10.256.a.b/30


On-premise server

NAT

Wide EthernetService



Pattern K: GRE tunnel over a Direct Link for Cloud and closed IP-VPN

CER1 XCR1

Vyatta1

Vyatta2

ClosedIP-VPN


On-premise server

SoftLayerserver



VIP

10.256.a.b/30

GRE tunnel

172.16.x.0/24

ECX

VC



Pattern KN: GRE over two Direct Link NSP + IPsec over the Internet, all routed by OSPF

CER1

CER2

XCR1

XCR2

Vyatta1

Vyatta2

Customer’sGlobalIntranet


On-premiseLocation JP SoftLayer

server



VIP

10.256.c.d/30

10.256.a.b/30

Vyatta3

Vyatta4

SoftLayerserverVIP

On-premiseLocation EU

On-premiseLocation US

TOK01 PoP

DAL03 PoP

TOK02 DC

DAL06 DC

GRE

GRE

GRE

IPsec

IPsec



IBM SoftLayer Diret Link patterns

Technology

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