[c-nsp] NX-OS - Fabric Path

[Lincoln Dale]

seems like manufacturing may have skipped a "write erase" step.

i'll pass the clue bat along.


cheers,

lincoln.


On 26/07/2010, at 1:55 AM, Church, Charles wrote:

> Hmmm.  When I looked at the 'show accounting log' on one of mine, I did see
> a couple other 10.1.1.x addresses other than the .50 when mine arrived.  I
> didn't capture it, but they did have early dates which I believe were before
> we received them.  Does seem like some test addresses.  I have the same
> 10.1.1.1 VRF 0/0 route as well.
> 
> Chuck 
> 
> 
> -----Original Message-----
> From: Charles Spurgeon [mailto:c.spurgeon at mail.utexas.edu] 
> Sent: Saturday, July 24, 2010 6:57 PM
> To: Church, Charles
> Cc: Manu Chao; Peter Rathlev; Lincoln Dale; cisco-nsp at puck.nether.net
> Subject: Re: [c-nsp] NX-OS - Fabric Path
> 
> 
> Thanks for posting this. I am seeing the same thing and since I know
> that I am the only person with access to the switches I was wondering
> where those addrs had come from. I am building the lab config and no
> one else knows which console TS lines I was using or which ints.
> 
> I have two new 5020s running 4.2(1)N1(1) that were unboxed a week and
> a half ago and set up in the lab area.  I got a chance to work on them
> today and when looking at the config one of them had mgmt0 configured
> with 10.1.1.61 and the other had mgmt0 configured with 10.1.1.63. Both
> of them had the management vrf default route pointed to 10.1.1.1.
> 
> I am the only person working on these switches and I bypassed the
> setup config when they were powered up. I did NOT configure them with
> these addrs. Nor were they connected to any live network that had
> access to any DHCP server. I have no idea where they got this
> config. Probably a leftover from mfg testing?
> 
> Their mgmt0 ints were not connected to the same VLAN and I didn't see
> an ARP storm.
> 
> -Charles
> 
> Charles E. Spurgeon / UTnet
> UT Austin ITS / Networking
> c.spurgeon at its.utexas.edu / 512.475.9265
> 
> On Mon, Jul 19, 2010 at 10:35:56PM -0400, Church, Charles wrote:
>> Just be careful about connecting the mgmt0 interfaces to anything prior to
>> configuring them.  The default IP address of 10.1.1.50 on them (at least
> on
>> the 4.2 5000s) will cause a spectacular ARP storm when they conflict with
>> each other, like when you attach several unconfigured ones to the same
>> network.  Several thousand PPS, eventual reloads, etc.  Our installation
>> guys got ahead of the config guys in our new DC, nice little mess it made.
>> Not sure why they put a default address on them, hope it's something they
>> correct in the future. 
>> 
>> Chuck 
>> 
>> -----Original Message-----
>> From: cisco-nsp-bounces at puck.nether.net
>> [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Manu Chao
>> Sent: Monday, July 19, 2010 7:17 PM
>> To: Peter Rathlev
>> Cc: Lincoln Dale; cisco-nsp at puck.nether.net
>> Subject: Re: [c-nsp] NX-OS - Fabric Path
>> 
>> 
>> Yes, but Nexus hardware is the right platform if you don't want to loose
> any
>> packet in your DC ;)
>> 
>> On Tue, Jul 20, 2010 at 12:56 AM, Peter Rathlev <peter at rathlev.dk> wrote:
>> 
>>> On Tue, 2010-07-20 at 08:29 +1000, Lincoln Dale wrote:
>>>> right now the hardware is using a frame format that is not that of
>>>> what TRILL uses (and as such we're using a Cisco-defined ethertype),
>>>> however the hardware is capable of supporting standards-based TRILL as
>>>> and when the standard is finalised & ratified.
>>> 
>>> Would that hardware happen be the EARL8? And would there be any chance
>>> that us "old skool" Cat6500 guys get to share to thrill of TRILL (or
>>> similar)? :-)
>>> 
>>> --
>>> Peter
>>> 
>>> 
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> 
> 
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