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Beginner

Ethernet Circuit Issue

I have a 150M point to point ethernet circuit connected via Single Mode Fiber from our 3560 switch to the another 3560 at a remote facility. I have configured both sides as routed ports on /30 connector. The remote switch interface is showing up/'up connected but the switch interface at the near end is showing down/down (not connected). Both sides are configured exactly the same and we have verified light from the carrier. We have also verified that the Tx and Rx are connected correctly. Any ideas on why the near side is not coming up?

nterface GigabitEthernet0/25

description cpeneams1 gi0/25

no switchport

ip address 172.26.1.37 255.255.255.252

GigabitEthernet0/25 is down, line protocol is down (notconnect)
  Hardware is Gigabit Ethernet, address is e840.40e9.29c1 (bia e840.40e9.29c1)
  Description: cpeneams1 gi0/25
  Internet address is 172.26.1.37/30
  MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation ARPA, loopback not set
  Keepalive not set
  Auto-duplex, Auto-speed, link type is auto, media type is 1000BaseLX SFP
  input flow-control is off, output flow-control is unsupported
  ARP type: ARPA, ARP Timeout 04:00:00
  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
     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 watchdog, 0 multicast, 0 pause input
     0 input packets with dribble condition detected
     0 packets output, 0 bytes, 0 underruns
     0 output errors, 0 collisions, 1 interface resets
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier, 0 PAUSE output
     0 output buffer failures, 0 output buffers swapped out

interface GigabitEthernet0/25

description crlneams2 port gi0/25

no switchport

ip address 172.26.1.38 255.255.255.252

GigabitEthernet0/25 is up, line protocol is up (connected)

  Hardware is Gigabit Ethernet, address is e840.404f.db41 (bia e840.404f.db41)

  Description: crlneams2 port gi0/25

  Internet address is 172.26.1.38/30

  MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,

     reliability 255/255, txload 1/255, rxload 1/255

  Encapsulation ARPA, loopback not set

  Keepalive not set

  Full-duplex, 1000Mb/s, link type is auto, media type is 1000BaseLX SFP

  input flow-control is off, output flow-control is unsupported

  ARP type: ARPA, ARP Timeout 04:00:00

  Last input never, output 22:30:37, 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

     76105481 packets input, 115528769880 bytes, 0 no buffer

     Received 0 broadcasts (0 IP multicasts)

     0 runts, 0 giants, 0 throttles

     1293 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored

     0 watchdog, 0 multicast, 0 pause input

     0 input packets with dribble condition detected

     5 packets output, 320 bytes, 0 underruns

     0 output errors, 0 collisions, 0 interface resets

     0 babbles, 0 late collision, 0 deferred

     0 lost carrier, 0 no carrier, 0 PAUSE output

     0 output buffer failures, 0 output buffers swapped out

interface GigabitEthernet0/25
description crlneams2 port gi0/25
no switchport
ip address 172.26.1.38 255.255.255.252

GigabitEthernet0/25 is up, line protocol is up (connected)
  Hardware is Gigabit Ethernet, address is e840.404f.db41 (bia e840.404f.db41)
  Description: crlneams2 port gi0/25
  Internet address is 172.26.1.38/30
  MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation ARPA, loopback not set
  Keepalive not set
  Full-duplex, 1000Mb/s, link type is auto, media type is 1000BaseLX SFP
  input flow-control is off, output flow-control is unsupported
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input never, output 22:30:37, 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
     76105481 packets input, 115528769880 bytes, 0 no buffer
     Received 0 broadcasts (0 IP multicasts)
     0 runts, 0 giants, 0 throttles
     1293 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog, 0 multicast, 0 pause input
     0 input packets with dribble condition detected
     5 packets output, 320 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier, 0 PAUSE output
     0 output buffer failures, 0 output buffers swapped out

2 REPLIES 2
Advisor

Ethernet Circuit Issue

Hi,

Auto-duplex, Auto-speed, link type is auto, media type is 1000BaseLX SFP

Full-duplex, 1000Mb/s, link type is auto, media type is 1000BaseLX SFP

One side is Auto and the other is statically configured. Do the same on the other side and tell us.

Regards.

Alain.

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Beginner

Ethernet Circuit Issue

The interface does not have the capability of letting me hard code the speed/duplex settings. I'm pretty sure it's because of the interface having an SFP in them. The one side came up 1000/Full but was set to auto/auto. I think it just auto detected the link.

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