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Option: Configuring ISO or MPLS Traffic on T-series and M320 Routers

Layer 2.5 VPNs on T-series and M320 routers support IPv4, IS-IS, and MPLS traffic types. Layer 2.5 VPNs running on M-series routers support only IPv4 traffic. Layer 2.5 VPNs do not support IPv6.

By default, IPv4 traffic runs on T-series and M320 routers. To configure IS-IS (ISO traffic) or MPLS traffic on Layer 2.5 VPNs, you must configure both ends of the VPN with the protocol configuration.

The same type of Layer 3 traffic must be configured on both ends of a TCC connection. By default, TCC connections carry IPv4 traffic. To specify which traffic can run over a TCC interface, include the [inet | mpls | iso] statement at the [edit interfaces interface-name encapsulation encapsulation-type logical-unit-number family tcc protocol] hierarchy level:



[edit]
interfaces {


               
                 interface
so-2/0/0                {


encapsulation ppp-tcc;

            
                       unit 0      
                             {


family tcc {
protocols [iso | inet | mpls];
}


}


}


}

When enabling ISO over a Layer 2.5 VPN that is configured on a CE Ethernet interface, include the [point-to-point] statement at the [edit protocols isis interface interface-name] hierarchy level:



[edit]
protocols {


isis {


interface fe-1/0/0.0 {
point-to-point;
}


}


}

For a full explanation of Layer 2 VPNs and configuration samples, see the JUNOS VPNs Configuration Guide.

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