Microsoft Azure Express Route
有关客户侧的BGP路由器的配置参考：
有关VLANID： VLANID是客户自定义的internalVLAN,不同的客户可以使用相同的VLANID，对于IXP来说，会有一个唯一的S-tag进行标记，不需要客户配置网络底层的S-tag。详见下文配置示例（仅供参考）：
Specify C-tags (VLAN ID)
Customerneed tospecify 2 C-tags to identify the P2P subinterface traffics. C-tag isgenerally aVLAN ID, you can specify it from 1 to4094. Any number is ok. Differentcustomers can use same C-tags, allowoverlap. C-tag is inner VLAN,when packetspassed to IXP, IXP will add an S-tagto the packets, as outer VLANID. S-taguniquely identified a customer’s trafficthrough IXP network.
Terminology
Circuit: Alogical representation of connection between the customer and Azure
MSEEMicrosoftServiceEnterprise Edge
VNETVirtualNetwork
APPSAzurePublicPeering Services e.g. Storage, SQL,…
IXP InternetExchange Point
VRF Virtualrouting and forwarding
Servicekey An ID(typically a GUID) used to uniquely identify acustomer circuit
BGP BorderGateway Protocol
S-tag A VLANtagunique identify a customer’s traffic on a physical port
C-tag1 Uniquelyidentify public peering traffic
C-tag2 Uniquelyidentify private peering traffic
2. 有关路由器的配置参考：https://azure.microsoft.com/en-us/documentation/articles/expre***oute-config-samples-routing/
该链接提供Cisco IOS-XE 和JuniperMX系列路由器的接口和路由配置示例。这些示例仅供参考，请不要完全按其配置。请联系您路由器方的技术支持为您的网络设备提供适合的配置。
请注意：本邮件下文及文档中的配置示例仅用于参考，您需要联系您的路由器技术支持团队和您的网络团队，来进行满足您需求的配置。本邮件及链接文档中涉及的路由器配置条目，Windows Azure不提供技术支持。请联系您的设备厂商获取类似问题的技术支持。
1. P2Pinterface configuration
StandardTemplate(cisco):
interfaceEthernet
description
ipaddress
encapsulationdot1Q
2. BGPconfiguration
StandardTemplate(cisco device):
routerbgp
bgp router-id
bgplog-neighbor-changes //configurelog neighbor changes
neighbor
remote-as12076 //specifyneighbor’sas number
descriptionPrimary_line_public_peer //describe neighbor
ebgp-multihop2 //configureebgpmultihop
address-familyipv4unicast
neighbor
remote-as 12076
descriptionPrimary_line_private_peer
ebgp-multihop 2
address-family ipv4 unicast
address-family ipv4 unicast
network
A customer setup acircuit:
IP subnets andVLAN IDs:
Router IPPrefix PeeringVLANID(C-tag)
Primary 192.168.1.0/30 Public 500
Secondary 192.168.2.0/30 Public 500
Primary 192.168.1.4/30 Private 510
Secondary 192.168.2.4/30 Private 510
IPaddressassignment:
Customerrouter MicrosoftMSEE
Primary 192.168.1.1 192.168.1.2
Secondary 192.168.2.1 192.168.2.2
Primary 192.168.1.5 192.168.1.6
Secondary 192.168.2.5 192.168.2.6
AS number:65001
P2P interface configuration:
interface Ethernet1/1
descriptionCT_B17547793_10M_primary_link
no switchport
speed 1000
no negotiate auto
interface Ethernet1/1.500
descriptionCT_primary_public_peer
encapsulation dot1q 500
ip address 192.168.1.1/30
interface Ethernet1/1.510
descriptionCT_primary_private_peer
encapsulation dot1q 510
ip address 192.168.1.5/30
interface Ethernet1/2
DescriptionCT_B17547794_10M_secondary_link
no switchport
speed 1000
no negotiate auto
interface Ethernet1/2.500
descriptioncustomer1_secondary_public_peer
encapsulation dot1q 500
ip address 192.168.2.1/30
interface Ethernet1/2.510
descriptioncustomer1_secondary_private_peer
encapsulation dot1q 510
ip address 192.168.2.5/30
BGP configuration:
router bgp 65001
router-id 192.168.3.1
bgp log-neighbor-changes
address-family ipv4 unicast
network192.168.4.0/24
neighbor 192.168.1.2
remote-as 12076
descriptionCT_primary_public_peer
ebgp-multihop 2
address-familyipv4unicast
neighbor 192.168.1.6
remote-as 12076
descriptionCT_primary_private_peer
ebgp-multihop 2
address-familyipv4unicast
neighbor 192.168.2.2
remote-as 12076
descriptionCT_secondary_public_peer
address-familyipv4unicast
neighbor 192.168.2.6
remote-as 12076
descriptionCT_secondary_private_peer
address-familyipv4unicast