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Community Member

Gigabit Ethernet interface problem

Hi all,

I have the following router 7609.

------------------ show version ------------------

Cisco Internetwork Operating System Software

IOS (tm) s72033_rp Software (s72033_rp-PK9SV-M), Version 12.2(18)SXD3, RELEASE SOFTWARE (fc1)

Technical Support:

Copyright (c) 1986-2004 by cisco Systems, Inc.

Compiled Thu 09-Dec-04 22:59 by pwade

Image text-base: 0x4002100C, data-base: 0x42318000

ROM: System Bootstrap, Version 12.2(17r)S2, RELEASE SOFTWARE (fc1)

BOOTLDR: s72033_rp Software (s72033_rp-PK9SV-M), Version 12.2(18)SXD3, RELEASE SOFTWARE (fc1)

Router uptime is 35 weeks, 4 days, 21 hours, 9 minutes

Time since router switched to active is 35 weeks, 4 days, 21 hours, 10 minutes

System returned to ROM by unknown reload cause - suspect boot_data[BOOT_COUNT] 0x0, BOOT_COUNT 0, BOOTDATA 19 (SP by power-on)

System restarted at 15:05:20 DST Thu Oct 6 2005

System image file is "sup-bootflash:s72033-pk9sv-mz.122-18.SXD3.bin"

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:

If you require further assistance please contact us by sending email to

cisco CISCO7609 (R7000) processor (revision 1.1) with 983008K/65536K bytes of memory.

Processor board ID FOX090900TQ

SR71000 CPU at 600Mhz, Implementation 0x504, Rev 1.2, 512KB L2 Cache

Last reset from power-on

X.25 software, Version 3.0.0.

Bridging software.

8 Ethernet/IEEE 802.3 interface(s)

9 Virtual Ethernet/IEEE 802.3 interface(s)

74 Gigabit Ethernet/IEEE 802.3 interface(s)

8 Gigabit Ethernet/IEEE 802.3 interface(s)

1917K bytes of non-volatile configuration memory.

8192K bytes of packet buffer memory.

65536K bytes of Flash internal SIMM (Sector size 512K).

Configuration register is 0x2102

and I issued

interface GigabitEthernet1/7

mtu 9216

no ip address

speed nonegotiate


interface GigabitEthernet1/8


mtu 9216

ip address X

no ip redirects

no ip unreachables

ip rip advertise 15

These interfaces don't get up

I have checked the fiber and it's good.

I have attached the "show interface" command

What could be the solution?

Thanks a lot in advance,




Re: Gigabit Ethernet interface problem


Have u connected something to it i mean any device or its a trunk port.Perfrom a no shut under u r interface.



Community Member

Re: Gigabit Ethernet interface problem


Yes, I had performed a no shut under, but interfaces don't get up. Also, I have made loops but I doesn't work either..

Thanks a lot!



Re: Gigabit Ethernet interface problem


Are you sure that you use the correct optical cable - I mean single mode or multi mode. And double check the polarity (Rx, Tx).



Community Member

Re: Gigabit Ethernet interface problem

how come ur both the gigabit interface are having same MAC address. just check ur show int output and if possible it could be hardware address. log a call to cisco-tac get it replaced.


Community Member

Re: Gigabit Ethernet interface problem

Hi all,

I want to thank you, your useful responses. The problem is solved. We have taken out module and inserted again and all ports are working properly.

Thanks a lot!!

Have a nice day :)

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