[c-nsp] C7604: GMPLS Interface suddenly appeared

[d3v10u5 d3v1c3]

Hi all,

I have a Core network where we started testing GPON from a supplier, all is
good, but today i noticed that suddenly a GMPLS interface appeared in my
conf., as i was configuring the box o noticed the interface just being
there, it's not (for now) doing nothing, the only thing connected to that
CISCO7604 [12.2(33)SRE2 ADVIPSERVICES] is a GPON OLT (not_cisco), connect
with 2Gb links and on a port channel.


This is the mystery interface... :)
<.......>
GMPLS177 is up, line protocol is up
  Hardware is GMPLS
  MTU 1500 bytes, BW 9 Kbit/sec, DLY 500000 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation UNKNOWN, loopback not set
  Keepalive not set
  Last input never, output never, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: fifo
  Output queue: 0/0 (size/max)
  5 minute input rate 0 bits/sec, 0 packets/sec
  5 minute output rate 0 bits/sec, 0 packets/sec
  L2 Switched: ucast: 0 pkt, 0 bytes - mcast: 0 pkt, 0 bytes
  L3 in Switched: ucast: 0 pkt, 0 bytes - mcast: 0 pkt, 0 bytes mcast
  L3 out Switched: ucast: 0 pkt, 0 bytes mcast: 0 pkt, 0 bytes
     0 packets input, 0 bytes, 0 no buffer
     Received 0 broadcasts (0 IP multicasts)
     0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
     0 packets output, 0 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     0 unknown protocol drops
     0 output buffer failures, 0 output buffers swapped out
<.......>
 *: interface is up
 IHQ: pkts in input hold queue     IQD: pkts dropped from input queue
 OHQ: pkts in output hold queue    OQD: pkts dropped from output queue
 RXBS: rx rate (bits/sec)          RXPS: rx rate (pkts/sec)
 TXBS: tx rate (bits/sec)          TXPS: tx rate (pkts/sec)
 TRTL: throttle count

  Interface                  IHQ      IQD      OHQ      OQD     RXBS
RXPS     TXBS     TXPS     TRTL
--------------------------------------------------------------------------------------------------------
*GMPLS177                      0        0        0        0        0
0        0        0        0
<.......>


So my question is why it suddenly rose from the grave since in rancid
nothing else was configured/modified on that box for a few weeks.

I understand the concept of GMPLS i can't find the reason i need that
interface (at least for now), was it something sent by the OLT?

Anyone?