SRX Services Gateway
SRX Services Gateway

SRX320 VDSL2 mPIM Physical link down

a week ago

Hi,

 

I'm installing and configuring a VDSL2 mPIM at a remote site. We need to setup the mPIM for ADSL. Both the ADSL line and config are new (this is a first install). Our technician at the remote site has installed the mPIM card and booted the SRX. He connected the port to the telco outlet. Although the interface is configured no LEDs are On or Blinking. Telco claims they have successfully delivered the ADSL connection. I need to determine if this is a problem with our connection from the Telco, a hardware problem or a misconfiguration. See several outputs of the SRX below. I would kindly ask to verify the config, give troubleshooting tips. Any help is appriciated.

 

Thanks in advance for your help,

 

Kind regards,

Dimitry

 

 

root@router>show chassis hardware   

FPC 1 REV 09 750-064612 Serial number FPC PIC 0 1x VDSL2 mPIM (RoHS)

 

root@router>show configuration interface 

et interfaces at-1/0/0 encapsulation ethernet-over-atm
set interfaces at-1/0/0 atm-options vpi 0
set interfaces at-1/0/0 dsl-options operating-mode auto
set interfaces at-1/0/0 unit 0 description "To Interconnect ADSL mPIM"
set interfaces at-1/0/0 unit 0 encapsulation ether-over-atm-llc
set interfaces at-1/0/0 unit 0 vci 0.35
set interfaces at-1/0/0 unit 0 family inet address 10.10.10.2/30

 

root@router> show interfaces at-1/0/0
Physical interface: at-1/0/0, Enabled, Physical link is Down
Interface index: 150, SNMP ifIndex: 536
Link-level type: Ethernet-over-ATM, MTU: 1514, Clocking: Internal, ADSL mode, Speed: ADSL,
Loopback: None
Device flags : Present Running Down
Link flags : None
CoS queues : 8 supported, 8 maximum usable queues
Current address: cc:e1:94:5a:78:2a
Last flapped : 2019-10-15 12:32:53 CEST (6w6d 04:00 ago)
Input rate : 0 bps (0 pps)
Output rate : 0 bps (0 pps)
ADSL alarms : None
ADSL defects : None
ADSL status:
Modem status : Down
DSL mode : Auto Annex A
Last fail code: None
Subfunction : 0x00
Seconds in showtime : 0

 

root@router>show interfaces terse

at-1/0/0 up down
at-1/0/0.0 up down inet 10.10.10.2/30

 

2 REPLIES 2
SRX Services Gateway

Re: SRX320 VDSL2 mPIM Physical link down

[ Edited ]
a week ago

You will also need a dialer interface.... if its VDSL you configure pt-1/0/0 and if its ADSL you configure at-1/0/0

 

VDSL Example DSL and Dialer Interfaces:

pt-1/0/0 {
    vlan-tagging;
    vdsl-options {
        vdsl-profile auto;
    }
    unit 0 {
        encapsulation ppp-over-ether;
        vlan-id 10;
    }
}
pp0 {
    unit 0 {
        ppp-options {
            pap {
                local-name user1;
                local-password "password1"; ## SECRET-DATA
                passive;
            }
            lcp-max-conf-req 0;
        }
        pppoe-options {
            underlying-interface pt-1/0/0.0;
            idle-timeout 0;
            auto-reconnect 120;
            client;
        }
        no-keepalives;
        family inet {
            negotiate-address;
        }
    }
}

Zone: 

security-zone untrust {
    interfaces {
        pp0.0 {
            host-inbound-traffic {
                system-services {
                    ping;
                }
            }
        }
    }
}

Routing-Options:

static {
    route 0.0.0.0/0 {
        next-hop pp0.0;
        metric 0;
    }
}

NAT:

source {
    rule-set trust-to-untrust {
        from zone trust;
        to zone untrust;
        rule destination-nat-rule {
            match {
                destination-address [ 10.0.0.0/8 172.16.0.0/12 192.168.0.0/16 123.100.102.161/29 ];
            }
            then {
                source-nat {
                    off;
                }
            }
        }
        rule source-nat-rule {
            match {
                source-address 0.0.0.0/0;
            }
            then {
                source-nat {
                    interface;
                }
            }
        }
    }
}

 

Juniper/Microsoft/Citrix Engineer at IT Live Ltd, Auckland, New Zealand.
SRX Services Gateway

Re: SRX320 VDSL2 mPIM Physical link down

a week ago

Hi Dawid,

 

Thank you for your reply.

 

This isn't an internetconnection but a Ethernet-circuit at Layer2 to our main-office. Is the dailer interface also nesessary for this type of connection?

 

Do you expert the interface go to UP state when the cable of the Telco is connected with dsl-option operation-mode auto enabled? Or does this require the dailer interface?