Configuring a VPRN Service with CLI
Page 574 7210 SAS M Services Guide
Note that you can configure a VPRN interface as a loopback interface by issuing the loopback 
command instead of the sap sap-id command. The loopback flag cannot be set on an interface 
where a SAP is already defined and a SAP cannot be defined on a loopback interface.
When using mtrace/mstat in a Layer 3 VPN context then the configuration for the VPRN should 
have a loopback address configured which has the same address as the core instance's system 
address (BGP next-hop).
Refer to Show Commands on page 590 for CLI commands and syntax.
The following example displays a VPRN interface configuration:
*A:7210 SAS>config>service>vprn>if# info detail
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                no description
                no address
                no mac
                arp-timeout 14400
                no allow-directed-broadcasts
                icmp
                    mask-reply
                    redirects 100 10
                    unreachables 100 10
                    ttl-expired 100 10
                exit
                no arp-populate
                dhcp
                    shutdown
                    no description
                    proxy-server
                        shutdown
                        no emulated-server
                        no lease-time
                    exit
                    no option
                    no server
                    no trusted
                    no lease-populate
                    no gi-address
                    no relay-plain-bootp
                    no use-arp
                exit
                no authentication-policy
                no ip-mtu
                no host-connectivity-verify
                no delayed-enable
                no bfd
                ipcp
                    no peer-ip-address
                    no dns
                exit
                no proxy-arp-policy
                no local-proxy-arp
                no remote-proxy-arp
                no shutdown
----------------------------------------------
*A:7210 SAS>config>service>vprn>if#