Allied Telesis C613-16164-00 REV E manual Family

Page 15

Configuring VRF-lite

DYNAMIC ROUTING PROTOCOL - RIP ADDRESS-FAMILY

PURPOSE

 

 

 

Step 1

awplus(config)#router rip

Optional. Enter router configuration mode for

 

 

RIP.

 

 

 

Step 2

awplus(config-router)#address-family

Associate a RIP address-family with a specific

 

ipv4 vrf <vrf-name>

VRF instance.

 

 

 

Step 3

awplus(config-router-af)#network

Define a network on which the RIP address-

 

x.x.x.x/x

family runs.

 

 

 

Step 4

awplus(config-router-af)#redistribute

Configure the device to redistribute information

 

<protocol>

from another routing protocol into the RIP

 

 

address-family. For example BGP can be

 

 

specified, to allow RIP to advertise inter-VRF

 

 

routes to a RIP neighbor.

 

 

 

Step 5

awplus(config-router)#exit-address-

 

 

family

 

 

 

 

Step 6

awplus(config-router)#exit

 

 

 

 

DYNAMIC ROUTING PROTOCOL - BGP ADDRESS-FAMILY

PURPOSE

 

 

 

Step 1

awplus(config)#router bgp <ASN>

Mandatory if BGP is used for inter-VRF

 

 

communications. Not required if static inter-

 

 

VRF routes are used instead of BGP to provide

 

 

inter-VRF communications. Enter router

 

 

configuration mode for BGP and assign the BGP

 

 

ASN. Define a single BGP ASN for the device.

 

 

Multiple ASNs not supported.

 

 

 

Step 2

awplus(config-router)#address-family

Associate a BGP address-family with a specific

 

ipv4 vrf <vrf-name>

VRF instance.

 

 

 

Step 3

awplus(config-router-af)#redistribute

Configure the device to redistribute information

 

<protocol>

from another routing protocol into the BGP

 

 

address-family. For example 1) connected, or

 

 

static can be specified, to allow BGP to

 

 

advertise connected or static routes to BGP

 

 

neighbor - if external BGP neighbor is

 

 

configured. 2) Ensure the connected or static

 

 

routes are redistributed into BGP to be used for

 

 

inter-VRF communications.

 

 

 

Step 4

awplus(config-router-af)#neighbor

If required, define a BGP neighbor and its

 

x.x.x.x <remote-ASN>

associated ASN.

 

 

 

Step 5

awplus(config-router-af)#neighbor

Activate the BGP neighbor to allow the BGP

 

x.x.x.x activate

Transport Layer TCP connection to establish to

 

 

the specified BGP neighbor.

 

 

 

Step 6

awplus(config-router-af)#exit-address-

 

 

family

 

 

 

 

Step 7

awplus(config-router)#exit

 

 

 

 

Configure VRF-lite Page 15

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Contents What is VRF-lite? How To Configure VRF-lite IntroductionWhich products and software version does it apply to? Software feature licensesCommand summary Who should read this document?Contents VRF GlossaryUnderstanding VRF-lite Vlan5 VRF-lite security domainsRoute table and interface management with VRF-lite Interface management with VRFAdding a VRF-aware static ARP Route management with VRFInter-VRF communication Static and dynamic inter-VRF routing For example VRF-lite features in AW+ Ping VRF aware services includeRoute limiting per VRF instance VRF-aware utilities within AW+ 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 Can be replaced with Using the route-target commandRoute-target import ASNVRFinstance For example Route-target both ASNVRFinstance For exampleVia BGP IVR, VRF shared will end up with the routes Also, if VRF shared configuration includesIf VRF red initially includes If VRF shared initially includesThen 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 Grey Other features used in this configurationVCStack and VRF-lite Stack provisioningVirtual Chassis ID X610 VCStack configurationX900 configuration 74 Configure VRF-lite Port Sharing VRF routing and double tagging on the same portCommunication plan GreenConfigurations 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

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