The document outlines the Microsoft ExpressRoute and Janet L2VPN setup, detailing private and public peering configurations and VLAN management. It includes examples of VLAN assignments for customer-specific setups and the integration of various services like Azure and Office 365. The focus is on the network architecture involving core routers, regional routers, and edge routers in connecting enterprise networks to Microsoft services.

1. MS ExpressRou te / Janet Core & L2VPN – Sco tt Innes – 22/11/2016
Enterprise
Network
Microsoft
ExpressRoute
Microsoft Peering
Public Peering
Private Peering Microsoft Peering
Public Peering
Private Peering
QinQ tunnel interface (Outer VLAN or S-tag)
set by customer
QinQ tunnel
interface
Peering VLANs (Inner VLANs or C-tags)
set by customer
Private Peering
Public Peering
Microsoft Peering Private Peering
Public Peering
Microsoft Peering
IP VLAN
(example: VLAN 1001)
MSER (QinQ) Outer VLAN or S-tag
(example: VLAN 222)
Core
Router
Regional
Router 2
MSER Router 2
MSER (QinQ) Outer VLAN or S-tag
set by Microsoft per customer
(example:VLAN 4)
Regional
Router 1
Core
Router
Core
Router
MSER Router 1
MSER (QinQ) Outer VLAN or S-tag
set by Microsoft per customer
(example: VLAN 4)
IP VLAN
(example: VLAN 1000)
MSER (QinQ) Outer VLAN or S-tag
(example: VLAN 111)
Janet L2VPN
Janet L2VPN
Private peering
VM machines
Cloud services
Trusted LAN extension
Public peering
Azure storage
SQL Databases
Web apps
IoT
Microsoft Peering
Office 365
Dynamics 365
Janet L2VPN
Edge Router 1
Outer VLAN Manipulation
(if required)
VLAN 111 to VLAN 4
VLAN 222 to VLAN 4
Edge Router 2
Trunked connection to Local
Janet PoP
Firewall/Router/Switch...
BGP capable device
Edge Router 3Core
Router
Edge Router 3