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New Member

Router Port Issue

I've got a cisco 1921 in a org. where we've added an extra gi interface and as long as a network cable is connected it works fine.

However if the network cable is disconnected and then reconnected the inteface doesn't start up again until I log into the router, enter config mode for the interface and issue the "shut" and "no shut" command.

7 REPLIES
VIP Purple

Router Port Issue

HI Hement,

Please post the output of these commands:

1. Show inv

2. show diag

3. show int gi ?

4. sh run int gi ?

5. sh version

Regards

New Member

Router Port Issue

DCB-Jambulingam#show inventory
NAME: "CISCO1921/K9 chassis", DESCR: "CISCO1921/K9 chassis"
PID: CISCO1921/K9      , VID: V05 , SN: FGL1702217Q

NAME: "Enhanced High Speed WAN Interface Card-1 Port Gigabit Ethernet SFP/Cu on Slot 0 SubSlot 0", DESCR: "Enhanced High Speed WAN Interface Card-1 Port Gigabit Ethernet SFP/Cu"
PID: EHWIC-1GE-SFP-CU  , VID: V01, SN: FOC1704704G


DCB-Jambuling

DCB-Jambulingam#show diag
Slot 0:
        C1921 Mother board 2GE, integrated VPN and 2W Port adapter, 3 ports
        Port adapter is analyzed
        Port adapter insertion time 1w6d ago
        EEPROM contents at hardware discovery:
        PCB Serial Number        : FOC16461WSL
        Hardware Revision        : 1.0
        Part Number              : 73-12850-06
        Top Assy. Part Number    : 800-33408-04
        Board Revision           : A0
        Deviation Number         : 0
        Fab Version              : 02
        Product (FRU) Number     : CISCO1921/K9
        Version Identifier       : V05
        CLEI Code                : CMMHF10ARA
        Processor type           : C8
        Chassis Serial Number    : FGL1702217Q
        Chassis MAC Address      : e02f.6d81.3900
        MAC Address block size   : 32
        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 36 34 36 31 57 53 4C 40
          0x10: 06 AC 41 01 00 82 49 32 32 06 C0 46 03 20 00 82
          0x20: 80 04 42 41 30 88 00 00 00 00 02 02 CB 8C 43 49
          0x30: 53 43 4F 31 39 32 31 2F 4B 39 89 56 30 35 20 D9
          0x40: 04 40 C1 CB C2 C6 8A 43 4D 4D 48 46 31 30 41 52
          0x50: 41 09 C8 C2 8B 46 47 4C 31 37 30 32 32 31 37 51
          0x60: C3 06 E0 2F 6D 81 39 00 43 00 20 C4 08 00 00 00
          0x70: 00 00 00 00 00 F3 00 51 40 00 8B 41 00 3C 42 00
          0x80: 00 F8 00 24 03 E8 1B 11 07 D0 1E A2 09 C4 1F A9
          0x90: 0B B8 20 0F 0F A0 20 D3 13 88 21 6A 1B 58 21 A9
          0xA0: 1F 40 21 B8 27 10 21 3E 41 00 50 42 00 00 F8 00
          0xB0: 18 02 71 1D B0 04 E2 20 08 07 53 21 02 0E A6 22
          0xC0: 60 1D 4C 22 C4 27 10 22 C4 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:
        1 Port Gigabit Ethernet SFP/Copper EHWIC
        PCB Serial Number        : FOC1704704G
        Hardware Revision        : 1.0
        Part Number              : 73-13295-01
        Board Revision           : A1
        Top Assy. Part Number    : 800-34350-01
        Deviation Number         : 0
        Fab Version              : 05
        RMA Test History         : 00
        RMA Number               : 0-0-0-0
        RMA History              : 00
        Product (FRU) Number     : EHWIC-1GE-SFP-CU
        Version Identifier       : V01
        CLEI Code                : CMUIAA8CAA
        Unknown Field (type 00D4): CC
        Asset Identifier         : A0
        EEPROM format version 4
        EEPROM contents (hex):
          0x00: 04 FF C1 8B 46 4F 43 31 37 30 34 37 30 34 47 40
          0x10: 06 A3 41 01 00 82 49 33 EF 01 42 41 31 C0 46 03
          0x20: 20 00 86 2E 01 88 00 00 00 00 02 05 03 00 81 00
          0x30: 00 00 00 04 00 CB 90 45 48 57 49 43 2D 31 47 45
          0x40: 2D 53 46 50 2D 43 55 89 56 30 31 00 D9 03 40 C1
          0x50: CB C6 8A 43 4D 55 49 41 41 38 43 41 41 D4 82 43
          0x60: 43 CC 82 41 30 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


Embedded Service Engine 0/0 :
  Total platform memory : 524288K bytes
  Total 2nd core memory : 0K bytes
  Start of physical address for 2nd core : 0x80000000
  Virtual address start of 2nd core memory : 0x0 - 0x0
  2nd core configured disabled
  L2 cache ways for 2nd core : 0

DCB-Jambulingam#show interfaces GigabitEthernet0/0/0
GigabitEthernet0/0/0 is up, line protocol is up
  Hardware is EHWIC-1GE-SFP-CU, address is e02f.6d81.3903 (bia e02f.6d81.3903)
  Description: # Jamulingam-1Mbps-RCOM-Secondary-(CHENN_NSP_PIR_12C25C78) #
  Internet address is X.X.X.X/30
  MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Full Duplex, 100Mbps, media type is RJ45
  output flow-control is XON, input flow-control is XON
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input 00:00:02, output 00:00:00, 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
     1820909 packets input, 497080236 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
     1133112 packets output, 109246698 bytes, 0 underruns
     0 output errors, 0 collisions, 2 interface resets
     0 unknown protocol drops
     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 GigabitEthernet0/0/0

ip address X.X.X.X 255.255.255.252

no ip redirects

no ip unreachables

no ip proxy-arp

duplex full

speed 100

end

DCB-Jambulingam#show version
Cisco IOS Software, C1900 Software (C1900-UNIVERSALK9-M), Version 15.1(4)M4, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2012 by Cisco Systems, Inc.
Compiled Tue 20-Mar-12 17:58 by prod_rel_team

ROM: System Bootstrap, Version 15.0(1r)M16, RELEASE SOFTWARE (fc1)

DCB-Jambulingam uptime is 1 week, 6 days, 14 hours, 14 minutes
System returned to ROM by power-on
System restarted at 16:38:29 IST Fri Nov 1 2013
System image file is "usbflash0:c1900-universalk9-mz.SPA.151-4.M4.bin"
Last reload type: Normal Reload


This product contains cryptographic features and is subject to United
States and local country laws governing import, export, transfer and
use. Delivery of Cisco cryptographic products does not imply
third-party authority to import, export, distribute or use encryption.
Importers, exporters, distributors and users are responsible for
compliance with U.S. and local country laws. By using this product you
agree to comply with applicable laws and regulations. If you are unable
to comply with U.S. and local laws, return this product immediately.

A summary of U.S. laws governing Cisco cryptographic products may be found at:
http://www.cisco.com/wwl/export/crypto/tool/stqrg.html

If you require further assistance please contact us by sending email to
export@cisco.com.

Cisco CISCO1921/K9 (revision 1.0) with 487424K/36864K bytes of memory.
Processor board ID FGL1702217Q
3 Gigabit Ethernet interfaces
1 terminal line
DRAM configuration is 64 bits wide with parity disabled.
255K bytes of non-volatile configuration memory.
249840K bytes of USB Flash usbflash0 (Read/Write)


License Info:

License UDI:

-------------------------------------------------
Device#   PID                   SN
-------------------------------------------------
*0        CISCO1921/K9          FGL1702217Q

Technology Package License Information for Module:'c1900'

-----------------------------------------------------------------
Technology    Technology-package           Technology-package
              Current       Type           Next reboot
------------------------------------------------------------------
ipbase        ipbasek9      Permanent      ipbasek9
security      None          None           None
data          None          None           None

Configuration register is 0x2102

New Member

Router Port Issue

Hi,

Please find the above logs.

Router Port Issue

Hi Hemant,

Please put your interface to 'no keepalive'

Hall of Fame Super Gold

Router Port Issue

However if the network cable is disconnected and then reconnected the inteface doesn't start up again until I log into the router, enter config mode for the interface and issue the "shut" and "no shut" command.

Seen this with my home 881 router.

The only solution I had was to upgrade the IOS and it went fine. 

New Member

Router Port Issue

Dear All,

What Exaclty i have to do with router which can resolve my issue permamently. Please suggest me with the reason.

Router Port Issue

Hemant,

R1# conf t

R1(config)# interfaces GigabitEthernet0/0/0

R1(config-if)#no keepalive

R1(config-if)#end

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