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Direct Link Patterns Overview

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Tomoyuki Niijima

This document describes several network connectivity patterns between a customer's on-premise systems and IBM SoftLayer cloud servers. It notes that some older patterns using private IP address ranges are now obsolete, as BGP is now required for all direct link connections. The obsolete patterns provided IP address subnets for the customer side that are no longer used - customer routes must now be advertised via BGP instead.

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© 2015 IBM Corporation IBM SoftLayer Direct Link Patterns 2016/11/12 Cloud Computing IBM Japan Tomoyuki Niijima
Pattern S: Direct Link CSP, BGP in between CERs and XCRs CER1 CER2 XCR1 XCR2 Vyatta1 Vyatta2 SoftLayer Private Network On-premise server SoftLayer server Customer’s address network SoftLayer’s address network VIPVIP 172.16.x.0/24 BGP: XCR2 > CER2: 10.x.y.0/26 CER2 > XCR2: 172.16.x.0/24 BGP: XCR1 > CER1: 10.x.y.0/26 CER1 > XCR1: 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 Customer’s Intranet SoftLayer Private Network On-premise server SoftLayer server Customer’s address network SoftLayer’s address network VIPVIP 172.16.x.0/24 GRE tunnel 10.256.c.d/30 10.256.a.b/30 © 2016 IBM Corporation 3 BGP: XCR2 > CER2: 10.x.y.0/26 CER2 > XCR2: 172.16.x.0/24 BGP: XCR1 > CER1: 10.x.y.0/26 CER1 > XCR1: 172.16.x.0/24 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 Customer’s Intranet SoftLayer Private Network On-premise server SoftLayer server Customer’s address network SoftLayer’s address network VIP 10.256.c.d/30 10.256.a.b/30 GRE tunnel OSPF OSPF OSPF OSPF © 2016 IBM Corporation 4 BGP: XCR2 > CER2: 10.x.y.0/26 CER2 > XCR2: 172.16.x.0/24 BGP: XCR1 > CER1: 10.x.y.0/26 CER1 > XCR1: 172.16.x.0/24 10.x.y.0/26
Pattern B: a Direct Link for Cloud and closed IP-VPN CER1 XCR1 Vyatta1 Vyatta2 Closed IP-VPN SoftLayer Private Network On-premise server SoftLayer server Customer’s address network SoftLayer’s address network VIP 10.256.a.b/30 172.16.x.0/24 ECX VC © 2016 IBM Corporation 5 BGP: XCR1 > CER1: 10.x.y.0/26 CER1 > 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 Closed IP-VPN SoftLayer Private Network On-premise server SoftLayer server Customer’s address network SoftLayer’s address network VIP 10.256.a.b/30 GRE tunnel 172.16.x.0/24 ECX VC © 2016 IBM Corporation 6 BGP: XCR1 > CER1: 10.x.y.0/26 CER1 > XCR1: 172.16.x.0/24 10.x.y.0/26
Pattern T: Direct Link NSP CER1 XCR1 SoftLayer Private Network SoftLayer server Customer’s address network SoftLayer’s address network 172.16.x.0/24 10.256.a.b/30 Customer’s Intranet On-premise server Wide Ethernet Service © 2016 IBM Corporation 7 BGP: XCR1 > CER1: 10.x.y.0/26 CER1 > XCR1: 172.16.x.0/24 10.x.y.0/26
© 2016 IBM Corporation 8 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 SoftLayer Private Network On-premise server SoftLayer server Customer’s address network SoftLayer’s address network VIPVIP 172.16.x.0/24 BGP: XCR2 > CER2: 10.0.0.0/8 CER2 > XCR2: 172.16.x.0/24 BGP: XCR1 > CER1: 10.0.0.0/8 CER1 > XCR1: 172.16.x.0/24 10.256.c.d/30 10.256.a.b/30 Customer’s Intranet © 2016 IBM Corporation 9 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 Customer’s Intranet SoftLayer Private Network On-premise server SoftLayer server Customer’s address network SoftLayer’s address network VIPVIP 172.16.x.0/24 BGP: XCR2 > CER2: 10.0.0.0/8 CER2 > XCR2: 172.16.x.0/24 BGP: XCR1 > CER1: 10.0.0.0/8 CER1 > XCR1: 172.16.x.0/24 GRE tunnel 10.256.c.d/30 10.256.a.b/30 © 2016 IBM Corporation 10 Caution: This pattern is obsolete.
Pattern T: Direct Link NSP + NAT CER1 XCR1 SoftLayer Private Network SoftLayer server Customer’s address network SoftLayer’s address network 172.16.x.0/24 10.256.a.b/30 Customer’s Intranet On-premise server NAT Wide Ethernet Service © 2016 IBM Corporation 11 Caution: This pattern is obsolete.
Pattern K: GRE tunnel over a Direct Link for Cloud and closed IP- VPN CER1 XCR1 Vyatta1 Vyatta2 Closed IP-VPN SoftLayer Private Network On-premise server SoftLayer server Customer’s address network SoftLayer’s address network VIP 10.256.a.b/30 GRE tunnel 172.16.x.0/24 ECX VC © 2016 IBM Corporation 12 Caution: This pattern is obsolete.
Pattern KN: GRE over two Direct Link NSP + IPsec over the Internet, all routed by OSPF CER1 CER2 XCR1 XCR2 Vyatta1 Vyatta2 Customer’s Global Intranet SoftLayer Private Network On-premise Location JP SoftLayer server Customer’s address network SoftLayer’s address network VIP 10.256.c.d/30 10.256.a.b/30 Vyatta3 Vyatta4 SoftLayer serverVIP On-premise Location EU On-premise Location US TOK01 PoP DAL03 PoP TOK02 DC DAL06 DC GRE GRE GRE IPsec IPsec © 2016 IBM Corporation 13 Caution: This pattern is obsolete.

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Direct Link Patterns Overview

  • 1. © 2015 IBM Corporation IBM SoftLayer Direct Link Patterns 2016/11/12 Cloud Computing IBM Japan Tomoyuki Niijima
  • 2. Pattern S: Direct Link CSP, BGP in between CERs and XCRs CER1 CER2 XCR1 XCR2 Vyatta1 Vyatta2 SoftLayer Private Network On-premise server SoftLayer server Customer’s address network SoftLayer’s address network VIPVIP 172.16.x.0/24 BGP: XCR2 > CER2: 10.x.y.0/26 CER2 > XCR2: 172.16.x.0/24 BGP: XCR1 > CER1: 10.x.y.0/26 CER1 > XCR1: 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
  • 3. Pattern A: BGP in between CERs and XCRs + Single GRE tunnel over a Direct Link CSP CER1 CER2 XCR1 XCR2 Vyatta1 Vyatta2 Customer’s Intranet SoftLayer Private Network On-premise server SoftLayer server Customer’s address network SoftLayer’s address network VIPVIP 172.16.x.0/24 GRE tunnel 10.256.c.d/30 10.256.a.b/30 © 2016 IBM Corporation 3 BGP: XCR2 > CER2: 10.x.y.0/26 CER2 > XCR2: 172.16.x.0/24 BGP: XCR1 > CER1: 10.x.y.0/26 CER1 > XCR1: 172.16.x.0/24 10.x.y.0/26
  • 4. 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 Customer’s Intranet SoftLayer Private Network On-premise server SoftLayer server Customer’s address network SoftLayer’s address network VIP 10.256.c.d/30 10.256.a.b/30 GRE tunnel OSPF OSPF OSPF OSPF © 2016 IBM Corporation 4 BGP: XCR2 > CER2: 10.x.y.0/26 CER2 > XCR2: 172.16.x.0/24 BGP: XCR1 > CER1: 10.x.y.0/26 CER1 > XCR1: 172.16.x.0/24 10.x.y.0/26
  • 5. Pattern B: a Direct Link for Cloud and closed IP-VPN CER1 XCR1 Vyatta1 Vyatta2 Closed IP-VPN SoftLayer Private Network On-premise server SoftLayer server Customer’s address network SoftLayer’s address network VIP 10.256.a.b/30 172.16.x.0/24 ECX VC © 2016 IBM Corporation 5 BGP: XCR1 > CER1: 10.x.y.0/26 CER1 > XCR1: 172.16.x.0/24 10.x.y.0/26
  • 6. Pattern K: GRE tunnel over a Direct Link for Cloud and closed IP- VPN CER1 XCR1 Vyatta1 Vyatta2 Closed IP-VPN SoftLayer Private Network On-premise server SoftLayer server Customer’s address network SoftLayer’s address network VIP 10.256.a.b/30 GRE tunnel 172.16.x.0/24 ECX VC © 2016 IBM Corporation 6 BGP: XCR1 > CER1: 10.x.y.0/26 CER1 > XCR1: 172.16.x.0/24 10.x.y.0/26
  • 7. Pattern T: Direct Link NSP CER1 XCR1 SoftLayer Private Network SoftLayer server Customer’s address network SoftLayer’s address network 172.16.x.0/24 10.256.a.b/30 Customer’s Intranet On-premise server Wide Ethernet Service © 2016 IBM Corporation 7 BGP: XCR1 > CER1: 10.x.y.0/26 CER1 > XCR1: 172.16.x.0/24 10.x.y.0/26
  • 8. © 2016 IBM Corporation 8 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.
  • 9. Pattern S: Direct Link CSP, BGP in between CERs and XCRs CER1 CER2 XCR1 XCR2 Vyatta1 Vyatta2 SoftLayer Private Network On-premise server SoftLayer server Customer’s address network SoftLayer’s address network VIPVIP 172.16.x.0/24 BGP: XCR2 > CER2: 10.0.0.0/8 CER2 > XCR2: 172.16.x.0/24 BGP: XCR1 > CER1: 10.0.0.0/8 CER1 > XCR1: 172.16.x.0/24 10.256.c.d/30 10.256.a.b/30 Customer’s Intranet © 2016 IBM Corporation 9 Caution: This pattern is obsolete.
  • 10. Pattern A: BGP in between CERs and XCRs + Single GRE tunnel over a Direct Link CSP CER1 CER2 XCR1 XCR2 Vyatta1 Vyatta2 Customer’s Intranet SoftLayer Private Network On-premise server SoftLayer server Customer’s address network SoftLayer’s address network VIPVIP 172.16.x.0/24 BGP: XCR2 > CER2: 10.0.0.0/8 CER2 > XCR2: 172.16.x.0/24 BGP: XCR1 > CER1: 10.0.0.0/8 CER1 > XCR1: 172.16.x.0/24 GRE tunnel 10.256.c.d/30 10.256.a.b/30 © 2016 IBM Corporation 10 Caution: This pattern is obsolete.
  • 11. Pattern T: Direct Link NSP + NAT CER1 XCR1 SoftLayer Private Network SoftLayer server Customer’s address network SoftLayer’s address network 172.16.x.0/24 10.256.a.b/30 Customer’s Intranet On-premise server NAT Wide Ethernet Service © 2016 IBM Corporation 11 Caution: This pattern is obsolete.
  • 12. Pattern K: GRE tunnel over a Direct Link for Cloud and closed IP- VPN CER1 XCR1 Vyatta1 Vyatta2 Closed IP-VPN SoftLayer Private Network On-premise server SoftLayer server Customer’s address network SoftLayer’s address network VIP 10.256.a.b/30 GRE tunnel 172.16.x.0/24 ECX VC © 2016 IBM Corporation 12 Caution: This pattern is obsolete.
  • 13. Pattern KN: GRE over two Direct Link NSP + IPsec over the Internet, all routed by OSPF CER1 CER2 XCR1 XCR2 Vyatta1 Vyatta2 Customer’s Global Intranet SoftLayer Private Network On-premise Location JP SoftLayer server Customer’s address network SoftLayer’s address network VIP 10.256.c.d/30 10.256.a.b/30 Vyatta3 Vyatta4 SoftLayer serverVIP On-premise Location EU On-premise Location US TOK01 PoP DAL03 PoP TOK02 DC DAL06 DC GRE GRE GRE IPsec IPsec © 2016 IBM Corporation 13 Caution: This pattern is obsolete.