Nexus 5000 - behavior of odd Ethernet (link inactive down) interface

Hi guys,.

It would sound really trivial, but it's very strange behavior.

-We have a server connected to a 2, 5000 s Nexus (for resiliancy)

-When there is that no config on the ethernet interfaces don't either, the ethernet interface is up / upward, there is a minimum amount of traffic on the link, etc. For example

Ethernet1/16 is in place
Material: 1000/10000 Ethernet, address: 000d.ece7.85d7 (bia 000d.ece7.85d7)
Description: shipley - p1.its RK14/A13
MTU 1500 bytes, BW 10000000 Kbit, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA
Port mode is access
full-duplex, 10 Gb/s, media type is 1 / 10g
Lighthouse is off
Input stream control is turned off, output flow control is disabled
Flow mode is dedicated
Switchport monitor is off
Last link flapped 00:00:07
Last clearing of "show interface" counters 05:42:32
entry 30 seconds 0 bps, 0 packets/s rate
exit rate of 30 seconds 96 bps, 0 packets/s
Load-time #2: 5 minutes (300 seconds)
heat flow 0 bit/s, 0 pps; output rate 8 bits/s, 0 pps
RX
0 packets unicast packets multicasts 0 0 broadcast packets
entry packets 0 0 bytes
0 packets of removal of storm Jumbo packets 0
Giants of Runts 0 0 0 CRC 0 no buffer
short entry error 0 0 0 overflow under-run 0 0 ignored
0 0 bad etype watchdog fall 0 bad proto place 0 if drop
0 entry with dribble 0 rejection of entry
Rx pause 0
TX
0 163 0 multicasts packets packets broadcast unicast packets
packages of exit 163 15883 bytes
0 jumbo packets
collision of errors 0 0 released 0 postponed end collision 0
0 lost 0 carrier no carrier 0 chatter
Tx break 0
1 interface resets

-As soon as I set up the link to be an access port, the link goes down, "inactivity" example of markup

SH int e1/16
Ethernet1/16 is down (inactive)
Material: 1000/10000 Ethernet, address: 000d.ece7.85d7 (bia 000d.ece7.85d7)
Description: shipley - p1.its RK14/A13
MTU 1500 bytes, BW 10000000 Kbit, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA
Port mode is access
Auto-duplex, 10 Gb/s, media type is 1 / 10g
Lighthouse is off
Input stream control is turned off, output flow control is disabled
Flow mode is dedicated
Switchport monitor is off
Last link flapped 05:38:03
Last clearing of "show interface" counters 05:41:33
entry 30 seconds 0 bps, 0 packets/s rate
exit rate of 30 seconds 0 bps, 0 packets/s
Load-time #2: 5 minutes (300 seconds)
heat flow 0 bit/s, 0 pps; output rate 0 bps, 0 pps
RX
0 packets unicast packets multicasts 0 0 broadcast packets
entry packets 0 0 bytes
0 packets of removal of storm Jumbo packets 0
Giants of Runts 0 0 0 CRC 0 no buffer
short entry error 0 0 0 overflow under-run 0 0 ignored
0 0 bad etype watchdog fall 0 bad proto place 0 if drop
0 entry with dribble 0 rejection of entry
Rx pause 0
TX
0 packets 146 0 multicasts packets broadcast unicast packets
packets to exit 146 13083 bytes
0 jumbo packets
collision of errors 0 0 released 0 postponed end collision 0
0 lost 0 carrier no carrier 0 chatter
Tx break 0
0 resets interface

-This behavior is visible on the two 5Ks

-J' have tried to use a different set of ports, SFP and fiber cabling without result changed

-I can't understand this behavior?  In this, why to configure the port would cause the link to go down?

-If anyone has experience this before, or could shed some light on this problem, it would be appreciated.

SH ver
Operating system (NX - OS) Cisco Nexus software
TAC support: http://www.cisco.com/tac
Copyright (c) 2002-2010, Cisco Systems, Inc. All rights reserved.
The copyright in certain works contained in this document are the property of
other third parties and are used and distributed under license.
Portions of this software are covered by the GNU Public
License. A copy of the license is available at
http://www.gnu.org/licenses/gpl.html.

Software
BIOS: version 1.2.0
Charger: version N/A
Kickstart: version 4.2 (1) N1 (1)
system: version 4.2 (1) N1 (1)
power-seq: version v1.2
Compile of the BIOS time: 19/06/08
kickstart image file is: bootflash:/n5000-uk9-kickstart.4.2.1.N1.1.bin
Kickstart compile time: 2010-04-29 19:00 [2010-04-30 02:38:04]
filesystem image is: bootflash:/n5000-uk9.4.2.1.N1.1.bin
compile time: 2010-04-29 19:00 [30/04/2010 03:51:47]

Thank you

Sheldon

Hello

If you have configured ports such as access to VLANs ports, who are either:

(a) not configured on the switch / present in the database for vlan.

or

(b) present in the database, but it is in a suspended state.

You will encounter this problem.  Please can you check the status of the VLAN?

Hope this helps

Martin

Tags: Cisco DataCenter

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    RAM

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    Hi Alexandre

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    HTH,

    Alex

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    Thank you all!

    Yes, it works even FC code NX - OS like a switch MDS switch.

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  • membership of VPC - nexus 5000

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    I found nothing on that in the internet, this is why I ask.

    Thanks in advance!

    2 only allowed in an area of the vPC.

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  • Connectivity HP C7000 and Nexus 5000

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    Take a look on my blog that goes into this in detail:

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    http://www.wooditwork.com/2011/02/17/Flex-10-ESX-design-with-simplicity-and-scalability-part-1/

    http://www.wooditwork.com/2011/02/17/Flex-10-ESX-design-with-simplicity-and-scalability-part-2/

    http://www.wooditwork.com/2011/02/18/scripting-Flex-10-ESX-design-with-PowerCLI/

    http://www.wooditwork.com/2010/10/19/HP-Virtual-connect-for-the-Cisco-network-administrator/

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    * If you rely on Sony for smart assistance, forgetabout it.

    * After the receiver a comment card and to express my disappointment, the call center outsource sent a letter... and when I called to discuss, they were still clueless.

    Sorry, but the support structure is absolutely catastrophic.

    We now return you to your regular programming...

    ----------------------------------------------------------------

    OK, let's go, in detail:

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    __________________________________________________

    Network configuration
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    __________________________________________________

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    ______________________________________________

    Network configuration
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    ______________________________________________

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    HEX)
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    __________________________________________________

    Network configuration
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    __________________________________________________

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    c.

    Well, here I am, a moth and a half later.

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