Csdrhrt

Suppose I have a subinterface with Vlan-vpls encapsulation, like this one:

admin@router> show configuration interfaces ge-2/1/1

flexible-vlan-tagging;

encapsulation flexible-ethernet-services;

unit 17 {

    encapsulation vlan-vpls;

    vlan-id 17;

}

Is there any command in Junos which would show me a VPLS instance associated with this subinterface (ge-2/1/1.17)?

If there are MACs in mac-table then I can use

show vpls mac-table interface ge-2/1/1.17

but what if there are no MACs?

There is no direct way, but you can see interfaces in the statistics:

user@router> show vpls statistics



[..]

Instance: EXAMPLE-VPLS-INSTANCE

   Local interface: ae2.2000, Index: 380

[..]

Or in the extensive flood list:

user@router> show vpls flood extensive

[..]

Name: EXAMPLE-VPLS-INSTANCE

[..]

    Flooding to:

    Name             Type          NhType          Index

    __all_ces__      Group          comp            1246    

        Composition: split-horizon

        Flooding to:

        Name             Type          NhType          Index

        ae2.2000         CE             ucst            1057     

or in the extensive connections:

user@router> show vpls connections extensive

[..]

Instance: EXAMPLE-VPLS-INSTANCE

Edge protection: Not-Primary

  Local site: local-sites (1)

    Number of local interfaces: 1

    Number of local interfaces up: 1    

    IRB interface present: no

    ae2.2000   

Try this command show vpls connections instance <instance-name> extensive to view the interfaces associated with the VPLS instance .

Additional Info >> To check the MAC table , use the command show vpls mac-table instance <instance-name> , it will show you all the MAC addresses learnt in that VPLS instance. If you are using 'vlan-id all' knob in the VPLS instance configuration , then this command will show you MAC Table VLAN based.

To check the MAC table VLAN specific , use the command show vpls mac-table instance <instance-name> vlan-id <vlan-id>.

If you want to see the MAC table specific to some interface , you can use the command show vpls mac-table instance <instance-name> | match <interface-name>'

MAC learning in VPLS is only data plane based. So in case there are no MACs means no packets are forwarded to / from the CE. When CE broadcast /multicast/unicasts the packets the PE learns the MAC address just like normal LAN switch.