Microsoft Azure Express Route

BGPVLANIDVLANIDinternalVLAN,VLANIDIXPS-tagS-tagSpecify 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 customers trafficthrough IXP network.TerminologyCircuit:Alogical representation of connection between the customer and AzureMSEEMicrosoftServiceEnterprise EdgeVNETVirtualNetworkAPPSAzurePublicPeering Services e.g. Storage, SQL,IXPInternetExchange PointVRFVirtualrouting and forwardingServicekey An ID(typically a GUID) used to uniquely identify acustomer circuitBGPBorderGateway ProtocolS-tag A VLANtagunique identify a customers traffic on a physica免费云主机域名l portC-tag1Uniquelyidentify public peering trafficC-tag2Uniquelyidentify private peering traffic2.https://azure.microsoft.com/en-us/documentation/articles/expre***oute-config-samples-routing/Cisco IOS-XEJuniperMXWindows Azure1.P2Pinterface configurationStandardTemplate(cisco):interfaceEthernet.//createsub-interface,sub number use C-tagdescription //configure interface descriptionipaddress //configure interface IP,use thefirst IPencapsulationdot1Q//configure dot1q encapsulation,addc-tag.2.BGPconfigurationStandardTemplate(cisco device):routerbgp//configure BGPbgp router-id//configureBGP router-id, use loopback IPbgplog-neighbor-changes//configurelog neighbor changesneighbor//configurebgp neighborremote-as12076//specifyneighborsas numberdescriptionPrimary_line_public_peer//describe neighborebgp-multihop2//configureebgpmultihopaddress-familyipv4unicastneighbor remote-as 12076descriptionPrimary_line_private_peer ebgp-multihop 2 address-family ipv4 unicastaddress-family ipv4 unicastnetworkmask //announcesubnetsthat need to talk to AzureA customer setup acircuit:IP subnets andVLAN IDs:RouterIPPrefix PeeringVLANID(C-tag)Primary192.168.1.0/30 Public 500Secondary192.168.2.0/30 Public 500Primary192.168.1.4/30 Private 510Secondary192.168.2.4/30 Private 510IPaddressassignment:Customerrouter MicrosoftMSEEPrimary192.168.1.1 192.168.1.2Secondary192.168.2.1 192.168.2.2Primary192.168.1.5 192.168.1.6Secondary192.168.2.5 192.168.2.6AS number:65001P2P interface configuration:interface Ethernet1/1descriptionCT_B17547793_10M_primary_link no switchport speed 1000 no negotiate autointerface Ethernet1/1.500 descriptionCT_primary_public_peer encapsulation dot1q 500 ip address 192.168.1.1/30interface Ethernet1/1.510descriptionCT_primary_private_peer encapsulation dot1q 510 ip address 192.168.1.5/30interface Ethernet1/2DescriptionCT_B17547794_10M_secondary_link no switchport speed 1000 no negotiate autointerface Ethernet1/2.500descriptioncustomer1_secondary_public_peer encapsulation dot1q 500 ip address 192.168.2.1/30interface Ethernet1/2.510descriptioncustomer1_secondary_private_peer encapsulation dot1q 510 ip address 192.168.2.5/30BGP configuration:router bgp 65001 router-id 192.168.3.1 bgp log-neighbor-changes address-family ipv4 unicastnetwork192.168.4.0/24 neighbor 192.168.1.2remote-as 12076 descriptionCT_primary_public_peer ebgp-multihop 2 address-familyipv4unicast neighbor 192.168.1.6 remote-as 12076descriptionCT_primary_private_peer ebgp-multihop 2 address-familyipv4unicast neighbor 192.168.2.2 remote-as 12076descriptionCT_secondary_public_peer address-familyipv4unicast neighbor 192.168.2.6 remote-as 12076descriptionCT_secondary_private_peer address-familyipv4unicast

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