2901 doesn't recognize the Ethernet cards!

[hanyawad]

Hello,

i have a 2901 router (IOS version 15.3)  and after i plugged the Ethernet module into one of its EHWIC i found that the router doesn't detect it and the other router detected it and no traffice is passed through it. does any one know why that happened. BTW this Router should support 2 4-port Cisco Gigabit Ethernet EHWICs.

thank you!

Makar

[Leo Laohoo]

Post the entire bootup process.

[hanyawad]

Hi Leo,

please find the boot process output that pasted below.

BTW when i connect two hosts on the same HWIC they reach each other but the problem is when i connect them on different HWIC cards.  thanks

IOS Image Load Test
___________________
Digitally Signed Release Software
program load complete, entry point: 0x81000000, size: 0x5e65400
Self decompressing the image : ############################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################ [OK]

Smart Init is enabled
smart init is sizing iomem
                 TYPE      MEMORY_REQ
          HWIC Slot 2      0x00200000
          HWIC Slot 3      0x00200000
    Onboard devices &
         buffer pools      0x0228F000
-----------------------------------------------
               TOTAL:      0x0268F000

Rounded IOMEM up to: 40Mb.
Using 7 percent iomem. [40Mb/512Mb]

Cisco IOS Software, C2900 Software (C2900-UNIVERSALK9-M), Version 15.2(4)M3, RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2013 by Cisco Systems, Inc.
Compiled Tue 26-Feb-13 03:42 by prod_rel_team

This product contains cryptographic features and is subject to United
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Installed image archive
Cisco CISCO2901/K9 (revision 1.0) with 909312K/40960K bytes of memory.
Processor board ID FTX145000GS
8 FastEthernet interfaces
2 Gigabit Ethernet interfaces
1 terminal line
1 Virtual Private Network (VPN) Module
DRAM configuration is 64 bits wide with parity enabled.
255K bytes of non-volatile configuration memory.
254464K bytes of ATA System CompactFlash 0 (Read/Write)

[hanyawad]

Hi everyone,

i got the solution for this problem. and discovered that:

Only 2 HWIC or EtherSwitch network modules can be used in this platform and to let them communicate with eachother we have to stack them physically by an ethernet cable to use one port on each card as a trunk. and also we have to issue the command switchport stacking-partner on these trunk port to let the two HWIC cards have L2 connectivity.

please rate if you find it helpful. thanks!

Labib

[Reza Sharifi]

Very helpful Labib,

Thank You for the update (+5)

[hanyawad]

please access this link below for the full solution. thanks!

http://www.cisco.com/en/US/prod/collateral/routers/ps5853/prod_qas0900aecd8016c026_ps5855_Products_Q_and_A_Item.html

Labib