4 Replies Latest reply on Feb 9, 2016 1:35 PM by adtran-support

    Netvanta 3200 | (Interface) Frame Relay, Sub-Relay & Loopback Questions

    wubblegubble New Member

      Good day...


      I am replacing an Samsung IBG-1000 for a customer using an Adtran Netvanta 3200. I have contacted the clients provider (MegaPath | T1) and asked for general support however they do not support the Adtran unfortunately and have referred me to try Adtran.


      When the Adtran is connected to the client T1 and when viewing the "System Summary" => "WAN Summary" indicates that the "WAN Interface" is UP.

      Likewise when viewing the "WAN Interface Encapsulation" status is indicated as ACTIVE.

      Firmware Version: R11.4.4

      The Questions

      1) When viewing the "System Summary" the WARNING: Warning a potential problem has been detected with your system. Please go this troubleshooting page for more detail.

      Layer 2 Protocols Error: Error fr1 is administratively up, but the sub interface, fr 1.500 (VC500), is inactive. Make sure fr1 is up. If the problem persists contact your service provider.


      This unit is currently disconnected from the circuit, but here is the return from "show interface".

      t1 1/1 is DOWN

        Description: fr 1.500

        Transmitter is sending remote alarm

        Receiver has loss of signal, loss of frame

        T1 coding is B8ZS, framing is ESF

        Clock source is line, FDL type is ANSI

        Line build-out is 0dB

        No remote loopbacks, No network loopbacks

        Acceptance of remote loopback requests enabled

        Tx Alarm Enable: rai

        Last clearing of counters 00:49:07

          loss of frame  : 1, current duration 00:49:07

          loss of signal : 1, current duration 00:49:07

          AIS alarm      : 0

          Remote alarm   : 0


        DS0 Status: 123456789012345678901234


        Status Legend: '-' = DS0 is unallocated

                       'N' = DS0 is dedicated (nailed)


        Line Status: -- LOS -- Red -- Tx Yellow --


        5 minute input rate 0 bits/sec, 0 packets/sec

        5 minute output rate 0 bits/sec, 0 packets/sec

        Current Performance Statistics:

          0 Errored Seconds, 0 Bursty Errored Seconds

          0 Severely Errored Seconds, 481 Severely Errored Frame Seconds

          481 Unavailable Seconds, 0 Path Code Violations

          0 Line Code Violations, 0 Controlled Slip Seconds

          0 Line Errored Seconds, 0 Degraded Minutes


        TDM group 1, line protocol is DOWN

        Encapsulation FRAME-RELAY IETF (fr 1)

          0 packets input, 0 bytes, 0 no buffer

          0 runts, 0 giants, 0 throttles

          0 input errors, 0 CRC, 0 frame

          0 abort, 0 discards, 0 overruns

          0 packets output, 0 bytes, 0 underruns


      fr 1 is DOWN


          Description: fr logical

          Signaling type is AUTO, signaling role is USER

          Multilink disabled

          Polling interval is 10 seconds,

          full inquiry interval is 6 polling intervals

        Last clearing of "show interface" counters: 00:49:07

        Link information:

        5 minute input rate 0 bits/sec, 0 packets/sec

        5 minute output rate 0 bits/sec, 0 packets/sec

          BW 0 Kbps

          Queueing method: weighted fair

          HDLC tx ring limit: 2

          Output queue: 0/0/684/64/0 (size/highest/max total/threshold/drops)

            Conversations  0/0/256 (active/max active/max total)

            Available Bandwidth 1152 kilobits/sec

            0 packets input, 0 bytes

            0 pkts discarded, 0 error pkts, 0 unknown protocol pkts

            0 packets output, 0 bytes

            0 tx pkts discarded, 0 tx error pkts


      fr 1.500 is Inactive

        Description:  fr 1.500

        Ip address is 2xx.xxx.xxx.xxx, mask is

        IP MTU is 1500 bytes

        Interface-dlci is 500

        BW is 0 Kbps

        Average utilization is 0%

        Last clearing of "show interface" counters: never


      eth 0/1 is UP, line protocol is UP

        Description: Local LAN

        Hardware address is 00:A0:C8:57:4B:FB

        Ip address is 21x.xxx.xxx.xxx, netmask is

        Secondary IP:


        IP MTU is 1500 bytes

        BW is 100000 Kbit

        100Mb/s, full-duplex

        ARP type: ARPA; ARP timeout is 20 minutes

        Last clearing of "show interface" counters: never

        5 minute input rate 1952 bits/sec, 1 packets/sec

        5 minute output rate 904 bits/sec, 1 packets/sec

          Queueing method: fifo

          Output queue: 0/256/0 (size/max total/drops)

          Interface Shaper: NOT ENABLED

          7498 packets input, 1601705 bytes

          6566 unicasts, 932 broadcasts, 0 multicasts input

          0 unknown protocol, 0 symbol errors, 0 discards

          0 input errors, 0 runts, 0 giants

          0 no buffer, 0 overruns, 0 internal receive errors

          0 alignment errors, 0 crc errors

          7692 packets output, 2892150 bytes

          7588 unicasts, 4 broadcasts, 100 multicasts output

          0 output errors, 0 deferred, 0 discards

          0 single, 0 multiple, 0 late collisions

          0 excessive collisions, 0 underruns

          0 internal transmit errors, 0 carrier sense errors

          0 resets, 0 throttles


      What is this error indicating and how would I resolve the situation of "activating" fr 1.500?

      2) Is a "loopback" interface required to be added manually or is this created once the device detects an active link?


      I appreciate your help and input greatly

        • Re: Netvanta 3200 | (Interface) Frame Relay, Sub-Relay & Loopback Questions
          wubblegubble New Member

          The AdTran Support Community is one of the worst excuses for a support community I have seen in a great many years!

          Why does AdTran even invest the time to create and host such a useless source for it's users?

          • Re: Netvanta 3200 | (Interface) Frame Relay, Sub-Relay & Loopback Questions
            charles Employee



            This sounds like the kind of issue that might be best worked through an ADTRAN Technical Support ticket.  If the unit is still within its 5 year warranty, feel free to open up a support case on our website.  Also, Pat Garner – ADTRAN’s Community Manager will be reaching out to you to get your input as to why the Support Community is falling short of your expectations.




              • Re: Netvanta 3200 | (Interface) Frame Relay, Sub-Relay & Loopback Questions
                wubblegubble New Member

                WOW! Seriously? Only after I make a second post of truth regarding this sites efficacy to its users would a response finally manifest.


                Thanks the same Charles, I did resolve this issue on my own within 24 hours my submitting this thread.


                I find it very odd that a manufacturers "support community" suffers such poor adminstration for its users, never receiving response for months up until I submitted my response to my own thread.


                This "support community" sports a great deal of other users threads which not unlike my own never garner so much as a response, I call that a disservice to Adtran users and furthermore, it will negatively influence Adtran's potential future upgrade sales likewise!

                Users expect some form of a reasonably timely response from "someone". Otherwise why should ANY Adtran users waste their time using this community?


                Thank you very much for having the fortitude to at least interact Charles.

                Have a great day.