Re: [foxboro] Switch Port Failure and Recovery on ZCPs/FCPs
- From: <dave.caldwell@xxxxxxxxxxxxxx>
- To: <foxboro@xxxxxxxxxxxxx>
- Date: Tue, 31 Jan 2012 13:27:52 -0500
Christian,
Thanks for the reply. I checked "show spantree adminedge" and found Edge-Port
turned ON for all fe.x.x device ports, and Non-Edge-Port turned ON for all
ge.x.x uplink ports. Each switch was configured with SCAS 3.4.1.
"show rmon stats" revealed mostly no CRC errors or fragments on most all of the
ports experiencing the "hot re-marry". ATS connected ports show a number of CRC
errors and fragments, but these do not experience the issue. The switches have
been running for 131 days and have experienced no additional respans since
startup.
I have opened a case with TAC and will pass along this additional information
when contacted. Thank you for giving me further food for thought.
Regards,
Dave
-----Original Message-----
From: foxboro-bounce@xxxxxxxxxxxxx [mailto:foxboro-bounce@xxxxxxxxxxxxx] On
Behalf Of Horn, Christian
Sent: Tuesday, January 31, 2012 4:00 AM
To: foxboro@xxxxxxxxxxxxx
Subject: Re: [foxboro] Switch Port Failure and Recovery on ZCPs/FCPs
Dave
The 7 days is the time between the CP's force diagnostic "Hot Re-marry" (803.3
mac reset), this is normal behaviour and happens on all CPs.
However the errors and messages you are getting suggest your switch ports are
incorrectly configured, in brief, all "uplink" ports should be set up with
adminedge = false and all device ports i.e CPs AWs should have adminedge =
true. Were the switches configured using the Invensys Switch Configurator?
Also you check for bad fibre connections on each switch within the switch
console with 'show rmon stats' command, look for CRC errors, fragments etc.
Regards,
Christian Horn
-----Original Message-----
From: foxboro-bounce@xxxxxxxxxxxxx [mailto:foxboro-bounce@xxxxxxxxxxxxx] On
Behalf Of dave.caldwell@xxxxxxxxxxxxxx
Sent: 16 January 2012 19:21
To: foxboro@xxxxxxxxxxxxx
Subject: [foxboro] Switch Port Failure and Recovery on ZCPs/FCPs
All knowing list,
I am running ZCP/FCP image 860050, I/A version 8.6, and N series switch
firmware 06.12.03.003.
I consistently see the same behavior for every ZCP/FCP on my system:
- Every 7 days to the minute both the control and IO ports of the ZCP and the
control ports of the FCP record a "link down" error in the syslog for the
switch, followed by a "link up"
- WireShark shows a drop out of the Primary Port Test and Alternate Port Test
for control ports of about 1.5 seconds
- the link light on the switch for the ZCP/FCP ports goes out for 1.5 seconds
- both the A switch and B switch are affected simultaneously
- on the ZCP/FCP the green light goes out and red light comes on, then returns
normal
- not sure what the TX/RX lights on ZCP/FCP did, but suspect they too went out
- appears an 802.3 MAC Reset is incremented in SMDH (I'll verify tomorrow when
it happens next)
- Occasionally, these will also record as port failures and recoveries in SMDH
and system monitor log
- Occasionally, these will also record as FCM failures and recoveries in SMDH
and system monitor log
- this started in September after we upgraded all ZCPs/FCPs to 8.6 and our
CBLAN to MESH with ATSs and new switches
- no such errors occur on any other type of ports such as ATSs or AWs
The times are different for each ZCP/FCP but all have the same period (7 days
to the minute) and do not line up easily with anything we might be scheduling
weekly on the system.
Thankfully, the error appears fairly harmless. I'm thinking ZCP/FCP firmware
bug, but is it possible that it's something else? I could find nothing on a
search of the support sight. I have not contacted TAC, but plan on doing so
soon.
Before proceeding, has anyone else seen this issue?
Thanks,
Dave
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Systems (formerly The Foxboro Company). Use the info you obtain here at
your own risks. Read http://www.thecassandraproject.org/disclaimer.html
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Systems (formerly The Foxboro Company). Use the info you obtain here at
your own risks. Read http://www.thecassandraproject.org/disclaimer.html
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