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2921 interface not coming up

Kashish_Patel
Level 2
Level 2

I have a CISCO2921. I am not able to bring up its gi0/1 interface. It stays down down.

From http://www.cisco.com/en/US/docs/routers/access/1900/software/configuration/guide/backup.html#wpxref16106, it looks like its gi0/1 interface is different from its gi0/0 or gi0/2 interfaces.

I know that interface is not coming up because of "no media" below.

Router#sh int gi0/1 | i media

  Auto Duplex, Auto Speed, media type is no media

I have tried media rj-45 and media sfp which have also not worked.

The other end of this link is ethernet handoff. What is it that I have to do for the link to come up? If I change the connection to gi0/2, I think that will work because I see this for gi0/2:

Router#sh int gi0/2 | i media

  Auto Duplex, Auto Speed, media type is RJ45

But why is it not working for gi0/1?

10 Replies 10

Raju Sekharan
Cisco Employee
Cisco Employee

Did you try moving the link to gig0/1?

Get the following outputs

1. Show inv

2. show diag

3. show int gi 0/1

4. show int gi 0/2

Yes the link is patched to gi0/1 currently and is not coming up.

Router#sh inventory

NAME: "CISCO2921/K9 chassis", DESCR: "CISCO2921/K9 chassis"

PID: CISCO2921/K9      , VID: V03 , SN: FTX1519ALPV

NAME: "VWIC2-2MFT-T1/E1 - 2-Port RJ-48 Multiflex Trunk - T1/E1 on Slot 0 SubSlot 0", DESCR: "VWIC2-2MFT-T1/E1 - 2-Port RJ-48 Multiflex Trunk - T1/E1"

PID: VWIC2-2MFT-T1/E1  , VID: V01 , SN: FOC15160ZA5

NAME: "C2921/C2951 AC Power Supply", DESCR: "C2921/C2951 AC Power Supply"

PID: PWR-2921-51-AC    , VID: V02 , SN: QCS1514H0BM

Router#sh diag

Slot 0:

        C2921 Mother board 3GE, integrated VPN and 4W Port adapter, 5 ports

        Port adapter is analyzed

        Port adapter insertion time 1y11w ago

        EEPROM contents at hardware discovery:

        PCB Serial Number        : FOC15170E4P

        Hardware Revision        : 1.0

        Part Number              : 73-11835-06

        Top Assy. Part Number    : 800-30794-03

        Board Revision           : D0

        Deviation Number         : 113332

        Fab Version              : 03

        Product (FRU) Number     : CISCO2921/K9

        Version Identifier       : V03

        CLEI Code                : CMMBL00ARA

        Processor type           : C2

        Chassis Serial Number    : FTX1519ALPV

        Chassis MAC Address      : e8b7.48ad.92d0

        MAC Address block size   : 80

        Manufacturing Test Data  : 00 00 00 00 00 00 00 00

        EEPROM format version 4

        EEPROM contents (hex):

          0x00: 04 FF C1 8B 46 4F 43 31 35 31 37 30 45 34 50 40

          0x10: 06 16 41 01 00 82 49 2E 3B 06 C0 46 03 20 00 78

          0x20: 4A 03 42 44 30 88 00 01 BA B4 02 03 CB 8C 43 49

          0x30: 53 43 4F 32 39 32 31 2F 4B 39 89 56 30 33 20 D9

          0x40: 04 40 C1 CB C2 C6 8A 43 4D 4D 42 4C 30 30 41 52

          0x50: 41 09 C2 C2 8B 46 54 58 31 35 31 39 41 4C 50 56

          0x60: C3 06 E8 B7 48 AD 92 D0 43 00 50 C4 08 00 00 00

          0x70: 00 00 00 00 00 F3 00 03 40 01 63 FF FF FF FF FF

          0x80: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF

          0x90: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF

          0xA0: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF

          0xB0: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF

          0xC0: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF

          0xD0: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF

          0xE0: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF

          0xF0: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF

        Internal Power Supply information

        Top Assy. Part Number    : 341-0226-02

        Deviation Number         : 0

        PCB Serial Number        : QCS1514H0BM

        RMA Test History         : 00

        RMA Number               : 0-0-0-0

        RMA History              : 00

        Version Identifier       : V02

        Product (FRU) Number     : PWR-2921-51-AC

        CLEI Code                : 0000000000

        Board Revision           : A0

        EEPROM format version 4

        EEPROM contents (hex):

          0x00: 04 FF 40 05 E2 DF 45 01 55 00 E2 02 88 00 00 00

          0x10: 00 C1 8B 51 43 53 31 35 31 34 48 30 42 4D 03 00

          0x20: 81 00 00 00 00 04 00 89 56 30 32 20 CB 8E 50 57

          0x30: 52 2D 32 39 32 31 2D 35 31 2D 41 43 C6 8A 30 30

          0x40: 30 30 30 30 30 30 30 30 F3 00 59 41 01 22 42 00

          0x50: 05 F8 00 50 01 F4 14 41 02 EE 16 F0 03 E8 18 C9

          0x60: 04 E2 1A 76 05 DC 1B 91 06 D6 1C 78 07 D0 1D 10

          0x70: 08 CA 1D 9E 09 C4 1E 6D 0A BE 1E A8 0B B8 1F 5E

          0x80: 0D AC 20 FB 0F A0 21 18 11 94 21 64 13 88 21 71

          0x90: 17 70 21 9F 1B 58 21 96 1F 40 21 6D 23 28 21 62

          0xA0: 27 10 21 5A 42 41 30 FF FF FF FF FF FF FF FF FF

          0xB0: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF

          0xC0: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF

          0xD0: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF

          0xE0: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF

          0xF0: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF

        WIC Slot 0:

        VWIC2-2MFT-T1/E1 - 2-Port RJ-48 Multiflex Trunk - T1/E1

        Hardware Revision        : 0.0

        Top Assy. Part Number    : 800-22629-05

        Board Revision           : C0

        Deviation Number         : 0

        Fab Version              : 04

        PCB Serial Number        : FOC15160ZA5

        RMA Test History         : 00

        RMA Number               : 0-0-0-0

        RMA History              : 00

        Product (FRU) Number     : VWIC2-2MFT-T1/E1

        Version Identifier       : V01

        EEPROM format version 4

        EEPROM contents (hex):

          0x00: 04 FF 40 03 FC 41 00 00 C0 46 03 20 00 58 65 05

          0x10: 42 43 30 88 00 00 00 00 02 04 C1 8B 46 4F 43 31

          0x20: 35 31 36 30 5A 41 35 03 00 81 00 00 00 00 04 00

          0x30: CB 90 56 57 49 43 32 2D 32 4D 46 54 2D 54 31 2F

          0x40: 45 31 89 56 30 31 20 D9 02 40 C1 FF FF FF FF FF

          0x50: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF

          0x60: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF

          0x70: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF

Router#sh int gi0/1

GigabitEthernet0/1 is down, line protocol is down

  Hardware is CN Gigabit Ethernet, address is e8b7.48ad.92d1 (bia e8b7.48ad.92d1)

  Description: < >

  Internet address is < >

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

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

  Encapsulation ARPA, loopback not set

  Keepalive set (10 sec)

  Auto Duplex, Auto Speed, media type is no media

  output flow-control is unsupported, input 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: 0/40 (size/max)

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

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

     2 packets input, 468 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 packets output, 0 bytes, 0 underruns

     0 output errors, 0 collisions, 20 interface resets

     0 unknown protocol drops

     0 babbles, 0 late collision, 0 deferred

     20 lost carrier, 0 no carrier, 0 pause output

     0 output buffer failures, 0 output buffers swapped out

Router#sh int gi0/2

GigabitEthernet0/2 is administratively down, line protocol is down

  Hardware is CN Gigabit Ethernet, address is e8b7.48ad.92d2 (bia e8b7.48ad.92d2)

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

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

  Encapsulation ARPA, loopback not set

  Keepalive set (10 sec)

  Auto Duplex, Auto Speed, media type is RJ45

  output flow-control is unsupported, input 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: 0/40 (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 packets output, 0 bytes, 0 underruns

     0 output errors, 0 collisions, 0 interface resets

     0 unknown protocol drops

     0 babbles, 0 late collision, 0 deferred

     1 lost carrier, 0 no carrier, 0 pause output

     0 output buffer failures, 0 output buffers swapped out

Is the other end supports auto-negotiation of speed ? if not hardcore the duplex and speed setting on the interface

try moving to gi 0/2 if this doesn't help

That's what my original question was.

I know it will come up if I move it to gi0/2, but what is it that I have to do for the connection at gi0/1 to come up?

Right now don't assume "media type is no media" is the reason for your link not coming up. This port is the one which supports both Rj45 and SFP. the other 2 ports only RJ45

Gi 0/1, you need to configure media-type as Rj45 because your link is copper. You need to configure duplex and speed, if the other end is not supporting auto-negotiation.

If this doesn't work try moving the link to gi 0/2 and check if it works

I had tried configuring media type as rj45/sfp and it did not work. Tried different speed/duplex settings as well.

I will see if moving the link over to gi0/2 helps.

Yes. Please move to gi 0/2 and check

I have moved the link to gi0/2, but still the link does not come up

Sandeep Choudhary
VIP Alumni
VIP Alumni

Hi Kashis,

Some gigabit interfaces on Cisco support RJ-45 (copper) and SFP (fiber) operation.

The command media-type has to be used to switch between the two media types.


The example below shows how to configure the media-type with this command.


media-type configuration example:


interface Gigabit0/1

media-type rj45

(UTP)

or

interface Gigabit0/1

media-type sfp

(fiber)

and then try

Regards

Please rate if it helps.

gi0/2 does not have media-type option...gi0/1 has, but my link is on gi0/2 now.

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