7204 VXR cannot get full duplex to work

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Oct 31st, 2008
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Hello,

I have a 7206VXR with an NPE400 and a PA-FE-TX card. No matter what I try I cannot get either 100Mb interface to connect at full duplex. There is no speed option available, but the option for full or half is there. It is set to full, and I have tried auto/100F on the switch. Even tried to switches, a smart and dumb one. The smart was set to auto, then 100F, the dumb one just tried to auto negotiate. Regardless of what I try, they always show 100H. Also, it shows 100F on the show int, but does not show it on the switches.


Any ideas?


Router>show ver

Cisco IOS Software, 7200 Software (C7200-JK9O3S-M), Version 12.4(12), RELEASE SOFTWARE (fc1)

Technical Support: http://www.cisco.com/techsupport

Copyright (c) 1986-2006 by Cisco Systems, Inc.

Compiled Fri 17-Nov-06 18:25 by prod_rel_team


ROM: System Bootstrap, Version 12.2(4r)B2, RELEASE SOFTWARE (fc2)

BOOTLDR: 7200 Software (C7200-BOOT-M), Version 12.0(22)S, EARLY DEPLOYMENT RELEASE SOFTWARE (fc2)


RTR-DUL-VA-P002 uptime is 2 weeks, 4 days, 23 hours, 50 minutes

System returned to ROM by power-on

System restarted at 06:23:49 EDT Sun Oct 12 2008

System image file is "disk0:c7200-jk9o3s-mz.124-12.bin"



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Cisco 7204VXR (NPE400) processor (revision A) with 491520K/32768K bytes of memory.

Processor board ID 30782439

R7000 CPU at 350MHz, Implementation 39, Rev 3.3, 256KB L2 Cache

4 slot VXR midplane, Version 2.7


Last reset from power-on


PCI bus mb0_mb1 (Slots 0, 1, 3 and 5) has a capacity of 600 bandwidth points.

Current configuration on bus mb0_mb1 has a total of 290 bandwidth points.

This configuration is within the PCI bus capacity and is supported.


PCI bus mb2 (Slots 2, 4, 6) has a capacity of 600 bandwidth points.

Current configuration on bus mb2 has a total of 200 bandwidth points

This configuration is within the PCI bus capacity and is supported.


Please refer to the following document "Cisco 7200 Series Port Adaptor

Hardware Configuration Guidelines" on Cisco.com <http://www.cisco.com>

for c7200 bandwidth points oversubscription and usage guidelines.



2 FastEthernet interfaces

1 Serial interface

125K bytes of NVRAM.


47040K bytes of ATA PCMCIA card at slot 0 (Sector size 512 bytes).

4096K bytes of Flash internal SIMM (Sector size 256K).

Configuration register is 0x2102


Router>



Router>show int fa 2/0

FastEthernet2/0 is up, line protocol is up

Hardware is DEC21140A, address is 00d0.2bb8.3138 (bia 00d0.2bb8.3138)

Description: Inter Router Communication

Internet address is 172.16.5.1/24

MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,

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

Encapsulation ARPA, loopback not set

Keepalive set (10 sec)

Full-duplex, 100Mb/s, 100BaseTX/FX

...

Router>

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Edison Ortiz Sat, 11/01/2008 - 13:02
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That PA module does not have auto-sensing features. You must set the duplex to full in the router and 100/Full Duplex in the switch.


What's the result from doing this recommendation?


__


Edison.

t.khan Mon, 11/03/2008 - 09:06
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That has been done.

The switches (three that we have tried) show 100-Half Duplex.



Edison Ortiz Mon, 11/03/2008 - 09:12
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How the switches are showing half-duplex if you set the duplex manually?


__


Edison.

t.khan Wed, 11/05/2008 - 06:39
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One switch is auto, no manual setting. The others allow me to set manually. When I do, I get no link light at 100-Full. If I move to auto, it negotiates at 100-Half.


We have another 7206VXR with a new NPE, that works fine.

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