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Routing Instances Basic Configuration

To configure routing instances, include the following statements:



routing-instances {



routing-instance-name {
description text;

forwarding-options;
interface interface-name;
instance-type (forwarding | layer2-control | l2vpn | no-forwarding
| virtual-router | virtual-switch | vpls | vrf);




bridge-domains {



bridge-domains-name {
domain-type bridge;

vlan-id (none | all | number);

vlan-tags outer number inner number;

interface interface-name;

routing-interface routing-interface-name;



bridge-options {

interface-mac-limit limit;

mac-statistics;
mac-table-size limit;

no-mac-learning;

static-mac mac-address;
}


}


}


no-vrf-advertise;
route-distinguisher (as-number:number | ip-address:number);
vrf-import [ policy-names ];
vrf-export [ policy--names ];
vrf-table-label;


vrf-target {
export community-name;
import community-name;
}




protocols {
... protocol-configuration ...
}




routing-options {
... routing-options ...
}


}


}

With the exception of the virtual-switch routing instance type (instance-type virtual-switch), you can include the statements at the following hierarchy levels:

[edit]
[edit logical-systems logical-system-name]

The instance-type virtual-switch statement is not supported at the [edit logical-systems logical-system-name] hierarchy level.

You can configure eight types of routing instances:

Forwarding instance—For more information about the forwarding routing instance type, see the JUNOS Routing Protocols Configuration Guide.
Layer 2 VPN routing instance—For more information about the l2vpn routing instance type, see the JUNOS VPNs Configuration Guide.
Layer 2 control protocols—(MX-series routers only) For more information about the layer2-control routing instance type, see Configuring Routing Instance Types Used in Layer 2 Networking and Configuring Spanning-Tree Protocols.
Nonforwarding instance—For more information about the no-forwarding routing instance type, see the JUNOS Routing Protocols Configuration Guide.
Virtual routing instance—For more information about the virtual-router routing instance type, see the JUNOS Routing Protocols Configuration Guide.
Virtual switch routing instance—(MX-series routers only) For more information about the virtual-switch routing instance type, see Configuring Routing Instance Types Used in Layer 2 Networking and Configuring Layer 2 Bridging.
Virtual private LAN service (VPLS) routing instance—For more information about the vpls routing instance type, see Configuring Routing Instance Types Used in Layer 2 Networking and Configuring Layer 2 Bridging.
VPN routing and forwarding (VRF) instance—For more information about the vrf routing instance type, see the JUNOS Routing Protocols Configuration Guide.

Note: In a Layer 2 network, you can configure only three types of routing instances: Layer 2 control protocols, VPLS routing instance, and virtual switch routing instance.

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