[j-nsp] Taking down VPLS unit with OAM CFM

Sebastian Wiesinger sebastian at karotte.org
Thu Jun 14 03:11:41 EDT 2018


Hi,

is it possible to mark a VPLS site interface unit as down when OAM CFM
signals a fault over that unit? Setup is like this:

[MX][ae1.2000]---CPE---Switch
    >----CFM MEP------>

The CFM should take down ae1.2000 when the link between CPE and switch fails.
Signaling works fine but the interface does not go down:

cfmd[85460]: CFMD_CCM_RMEP_INTERFACE_STATUS: Remote MEP: 1 Remote MAC: 0080.eac0.2db3 interface status down received by Local MEP: 2 on Level: 7 MD: SATTest MA: SAT Interface: ae1.2000 reason: interface down tlv
cfmd[85460]: CFMD_CCM_DEFECT_MAC_STATUS: CFM defect: MAC status detected by MEP on Level: 7 MD: SATTest MA: SAT Interface: ae1.2000

ae1.2000 is a site in a VPLS instance:

root at lab-mx80-2# show routing-instances CUSTOMER | display inheritance no-comments
instance-type vpls;
vlan-id none;
interface ae1.2000;
routing-interface irb.0;
vrf-target target:65000:102000;
protocols {
    vpls {
        no-tunnel-services;
        site local-sites {
            site-identifier 1;
            interface ae1.2000;
        }
        mac-flush;
        connectivity-type irb;
    }
}

root at lab-mx80-2# show interfaces ae1.2000 
description Customer;
encapsulation vlan-vpls;
vlan-id 2000;



root at lab-mx80-2# show protocols oam ethernet connectivity-fault-management action-profile vlan-down 
event {
    interface-status-tlv [ down lower-layer-down ];
    rdi;
    ais-trigger-condition all-defects;
}
action {
    interface-down;
}

root at lab-mx80-2# show protocols oam ethernet connectivity-fault-management maintenance-domain SATTest    
level 7;
maintenance-association SAT {
    continuity-check {
        interval 1s;
    }
    mep 2 {
        interface ae1.2000;
        direction down;
        action-profile vlan-down;
        remote-mep 1;
    }
}

Any idea if this is possible at all? I can't find any knob that would make the
interface unit go down.

Regards

Sebastian

-- 
GPG Key: 0x93A0B9CE (F4F6 B1A3 866B 26E9 450A  9D82 58A2 D94A 93A0 B9CE)
'Are you Death?' ... IT'S THE SCYTHE, ISN'T IT? PEOPLE ALWAYS NOTICE THE SCYTHE.
            -- Terry Pratchett, The Fifth Elephant


More information about the juniper-nsp mailing list