Allied Telesis C613-16164-00 REV E manual Using the route-target command, Can be replaced with

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Dynamic inter-VRF communication explained

Using the route-target command

When BGP is used for inter-VRF communication, dynamic route leakage of BGP routes from one VRF instance to another is achieved via the VRF route-target command.

There are three variations of the route-target command:

1.route-target export <ASN:VRFinstance>

for example:

ip vrf red

rd 100:1

route-target export 100:1

2.route-target import <ASN:VRFinstance>

for example:

ip vrf red

rd 100:1

route-target import 100:2

3.route-target both <ASN:VRFinstance>*

for example:

ip vrf red

rd 100:1

route-target export 100:1

route-target export 100:2

route-target export 100:3

route-target import 100:2

can be replaced with:

ip vrf red

rd 100:1

route-target export 100:1 route-target export 100:3

route-target both 100:2

*Use of the command route-target both is uncommon in a VRF-lite environment.

The command route-target export applies a BGP extended community attribute to each BGP prefix stored in the BGP route table of the address-family associated with the VRF instance. The content of this attribute is the (ASN) that was specified in the route-target export command.

Configure VRF-lite Page 21

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Contents What is VRF-lite? How To Configure VRF-lite IntroductionCommand summary Software feature licensesWho should read this document? Which products and software version does it apply to?Contents VRF GlossaryUnderstanding VRF-lite Route table and interface management with VRF-lite VRF-lite security domainsInterface management with VRF Vlan5Adding a VRF-aware static ARP Route management with VRFInter-VRF communication Static and dynamic inter-VRF routing For example VRF-lite features in AW+Route limiting per VRF instance VRF aware services includeVRF-aware utilities within AW+  Ping Telnet client  SSH client TCP dump Awplusconfig# access-list standard Configuring VRF-liteAwplusconfig-if#switchportaccess vlanx Family Awplusconfig-route-map#match ip Ip route 192.168.50.0/24 Ip route vrf green 192.168.1.0/24 Static inter-VRF routingForwarding Information Base FIB and routing protocols Dynamic inter-VRF communication explainedBGP Inter-VRF communication via BGP Route-target import ASNVRFinstance For example Using the route-target commandRoute-target both ASNVRFinstance For example Can be replaced withIf VRF red initially includes Also, if VRF shared configuration includesIf VRF shared initially includes Via BGP IVR, VRF shared will end up with the routesThen via BGP IVR, VRF red will end up with the routes If VRF shared configuration includesViewing source VRF and attribute information for a prefix How VRF-lite security is maintainedMultiple VRFs without inter-VRF communication Simple VRF-lite configuration examples26 Configure VRF-lite Vlan 28 Configure VRF-lite Configure VRF-lite 30 Configure VRF-lite Configure VRF-lite 32 Configure VRF-lite Inter-VRF configuration examples with Internet access Configuration Configure VRF-lite Example B Configuration 38 Configure VRF-lite Configure VRF-lite Example C Configuration 42 Configure VRF-lite Configure VRF-lite Configuring a complex inter-VRF solution Network description Each VLANs is associated with a VRF instance VRF communication plan Configuration breakdown Configure VRF-lite Configure Vrfs Configure the hardware ACLs This example, three access groups are attached to port Within the same IP subnet that the switch port is a member192.168.43.0/24 via the shared VRF Configure Vlan Database Configure IP Addresses Configure VRF-lite Configure Dynamic Routing Configure VRF-lite 56 Configure VRF-lite Configure Static Routing Complete show run output from VRF device is below Configure VRF-lite 60 Configure VRF-lite Configure VRF-lite IP route table from VRF device is below VRF blue Hostname Internetrouter Hostname sharedrouter N1 Ospf Nssa Hostname redospfpeerHostname greeniBGPpeer Hostname bluerippeer Hostname orangerouter Hostname orangeospfpeer VCStack and VRF-lite Other features used in this configurationStack provisioning GreyVirtual Chassis ID X610 VCStack configurationX900 configuration 74 Configure VRF-lite Communication plan Sharing VRF routing and double tagging on the same portGreen PortConfigurations X610 aX610 B Configure VRF-lite Additional notes BGP configuration tips 80 Configure VRF-lite VRF device Red router vlan database Red router Route Limits Configuring static route limitsConfiguring Dynamic route limits Allowed number of fib routes excluding Connect and Static100 Syntax No max-fib-routesVRF-lite usage guidelines Useful VRF-related diagnostics command list GeneralRouting general Routing protocols IP prefix network, e.g TCPdump HW platform table commands

C613-16164-00 REV E specifications

The Allied Telesis C613-16164-00 REV E is a robust networking device designed to enhance connectivity and communication within enterprise environments. Renowned for its reliability and efficiency, this device serves as an ideal choice for organizations seeking to improve their network infrastructure.

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In conclusion, the Allied Telesis C613-16164-00 REV E stands out as an excellent networking solution characterized by its support for multiple networking layers, high-speed data transfer, and robust security features. Ideal for both small to medium enterprises and larger organizations, it helps ensure that businesses can maintain efficient and secure operations in a constantly evolving digital landscape.
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