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problems with inner-range PPPoe mx80

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  • 1.  problems with inner-range PPPoe mx80

    Posted 07-14-2020 12:33

    Good day. Have 2 mx80 pppoe Bras on a 2 sides. To create a downlink redundancy need configure PADO delay on some sub interface.
    To do this, we decided to move away from auto-configuration to manual configuration of interfaces.
    like this.

    show interfaces xe-0/0/3 
    flexible-vlan-tagging;
    mtu 1571;
    unit 1295 {
        encapsulation ppp-over-ether;
        vlan-tags outer 1295 inner-range 3000-3090;
        pppoe-underlying-options {
            access-concentrator PPPoE;
            dynamic-profile pppoe-simple;
            service-name-table T1;
        }
    }
    

    If we have S (outer) vlan 1295 and C (inner) vlan 3000 (first in range) all connecting, but if C vlan other it dont work.
    monitor show this:

    17:54:08.943081  In b8:88:e3:a0:12:7e > ff:ff:ff:ff:ff:ff, ethertype 802.1Q (0x8100), length 48: vlan 1295, p 0, ethertype 802.1Q, vlan 3050, p 0, ethertype PPPoE D, PPPoE PADI [Service-Name] [Host-Uniq UTF8]
    17:54:10.893591 Out 08:81:f4:85:51:f3 > b8:88:e3:a0:12:7e, ethertype 802.1Q (0x8100), length 68: vlan 1295, p 6, ethertype 802.1Q, vlan 3000, p 6, ethertype PPPoE D, PPPoE PADO [AC-Name "PPPoE"] [Host-Uniq UTF8] [Service-Name] [AC-Cookie UTF8] 

    software version 16.1R6-S4.2
    have some ideas to solve this ?



  • 2.  RE: problems with inner-range PPPoe mx80

    Posted 07-14-2020 12:46

    HI,

     

    Please check this config example for pppoe over static ge interface. I think you might need to increase the max-sessions similar to the example.

     

    https://www.juniper.net/documentation/en_US/junos/topics/example/subscriber-management-pppoe-dynamic-on-static-vlan.html

     

     

    If this solves your problem, please mark this post as "Accepted Solution"

    Best Regards,

    Mohamed

     



  • 3.  RE: problems with inner-range PPPoe mx80

    Posted 07-14-2020 13:14

    Mohamed this example for single vlan, it work good. I have trouble with qinq 



  • 4.  RE: problems with inner-range PPPoe mx80

    Posted 07-14-2020 13:28

    Hi,

     

    For qinq, you can use this config as well.

     

    ge-2/0/1 {

    flexible-vlan-tagging;

    unit 1 {

    vlan-tags outer 1 inner 1;

    family pppoe {

    access-concentrator TEST;

    duplicate-protection;

    dynamic-profile PPP;

    max-sessions 10;

    }

    }

    }

    If this solves your problem, please mark this post as "Accepted Solution"

    Best Regards,

    Mohamed



  • 5.  RE: problems with inner-range PPPoe mx80

    Posted 07-14-2020 23:40

    we have scheme 1 inner vlan per switch. +- 30  switch  (Inner vlans) per 1 S(outer) vlan.   600+ S Vlans.  In this sceme need to create 18000 sub interfaces. its veeery hard )) 



  • 6.  RE: problems with inner-range PPPoe mx80

    Posted 07-15-2020 01:00

    Hi,

    In that case, I believe dynamic profile for auto-configuration should be used.

     

     

    If this solves your problem, please consider to mark this post as "Accepted Solution".

    Best Regards,

    Mohamed



  • 7.  RE: problems with inner-range PPPoe mx80
    Best Answer

    Posted 07-15-2020 02:05

    The problem was solved using 2 dynamic profiles with different ranges

     

    show interfaces xe-0/0/3                                                                                             
    flexible-vlan-tagging;
    auto-configure {
        stacked-vlan-ranges {
            dynamic-profile demux_qinq_vlan_pppoe {
                accept pppoe;
                ranges {
                    1200-1293,any;
                    50-50,any;
                    51-51,any;
                    60-60,any;
                }
            }
            dynamic-profile demux_qinq_vlan_pppoe_second {
                accept pppoe;
                ranges {
                    1294-3090,any;
                }
            }
        }
    }