VPC Autorecovery

Hello,
I have a questions about the auto-recovery. The 240 second time seems like quite a long time to wait to bring the ports back online however the scenarios that I am reading sound like it would be pretty rare. My question is about the one scenario where the peer-link fails and THEN the primary device fails. I understand that the auto-recovery would take place then however what would happen if you just pull the power on the primary device? Will you still have to wait the 240 seconds for the interfaces on the secondary device or will the secondary device see that the peer-link and peer keep-alive link have failed at the same time and continue forwarding traffic?

Hi,
The auto-recovery is scenario is only used when both primary and secondary switch go down.
If you pull the power on the primary device the 240 seconds wait does not apply and the second switch will take over right a way. You may lose one or 2 pings but the fail over is very fast.
HTH

Similar Messages

Back to Back vPC - Why is it not possible?

Good Evening!
I'm studying for CCDP and am currently sitting on page 271 for those of you that have the official book (642-874).
Similar topology to book here.
If I understand correctly, in an Active/Active FEX design two Cisco Nexus 5000s plug into two Cisco Nexus 2000s which in turn plug into the server. There is a two way vPC between the 2000s and 5000s (it doesn't look like that's shown in the picture though). However, because there is a vPC between the FEXs and the Nexus 5000 you cannot have a vPC between the FEXs and the servers. Why is this? Any clarification on at a conceptual level of how an Active/Active FEX configuration works is also appreciated. I've read the section, but since I haven't had hands on with any of this equipment I'm having some trouble conceptualizing everything. Thanks for your time.
Grant

Question:
=======
However, because there is a vPC between the FEXs and the Nexus 5000 you cannot have a vPC between the FEXs and the servers. Why is this?
Answer: No you can have VPC between the Fex and the servers.
https://communities.cisco.com/thread/21567?tstart=0
2)
good document on VPC:
http://www.cisco.com/c/en/us/products/collateral/switches/nexus-5000-series-switches/configuration_guide_c07-543563.html
Video on the same:
http://www.ine.com/all-access-pass/training/playlist/ccie-data-center-nexus/vpc---active-100121202.html
HTH

NAV is not installing on my VPC 7.0

When I start installing Norton Antivirus 2006 on VPC 7.0, the installer crashes. Has anyone else run into this problem? If so how do I fix it?
eMac Mac OS X (10.4.3)

Hi James,
While re-installing Muse try to change the install location and see if that makes a difference.
- Abhishek Maurya

Routing issue in Nexus 7009 due to vPC or hsrp

we have two site's, on first site we have two nexus 7009 switches (Nexus A & Nexus B) and other site is remote site having two 6500 switches. (design attached)
we are using hsrp on nexus switches and Active is Nexus A for all vlan’s
From one of my remote site user's (user's are in vlan 30 ) are not able to communicate with nexus site vlan 20 specially if host in vlan 20 take forwarding path from nexus switch B,
I can ping the vlan 20 both physical address's and gateway (vlan 20 configured in both nexus switch and using HSRP) from vlan 30 which configured on remote site 6500 switch
ospf with area 0 is the routing protocol running between both site.
vlan 10 we are using as a management vlan on both nexus switch that building neighbore ship with WAN router, it's means wan router have two neighbors nexus A and nexus B, but nexus B building the neigbhorship via a Nexus A because from WAN router we have single link which is terminated on Nexus A,
there is one layer 2 switch between nexus A and WAN router, nexus A site that switch port in vPC because we are planning to pull second link later to nexus B.
All user's are connected with edge switch and edge switch have a redundant uplink to nexus A and B with vPC configured
After troubleshooting we observe that if user in vlan 20 wants to communicate with vlan 30 (remote site), traffic is taking Nexus B is forwarding path, then gets drops.
I run the tracert from pc its showing route till SVI on Nexus B after that seems packets not finding route. Even vlan 30 routes are available in the routing table of Nexus B. we don’t have any access-list and Firewall between this path.

Hi,
I suspect in your scenario that traffic is being dropped due to the characteristics of vPC, the routing table on Nexus-B may reflect the next-hop address for the destination IP, however if that next-hop address is the address of the Nexus-A off of VLAN 20 then it will be forwarded across the vPC peer-link, this breaks the convention.
When you attach a Layer 3 device to a vPC domain, the peering of routing protocols using a VLAN also carried on the vPC peer-link is not supported. If routing protocol adjacencies are needed between vPC peer devices and a generic Layer 3 device, you must use physical routed interfaces for the interconnection.
You can configure VLAN Interfaces for Layer 3 connectivity on the vPC peer devices to link to Layer 3 of the network for such applications as HSRP and PIM. However, Cisco recommend that you configure a separate Layer 3 link for routing from the vPC peer devices, rather than using a VLAN network interface for this purpose.
Take a look at the following URL, this article helps to explain the characteristics of vPC and routing over the peer-link:
http://bradhedlund.com/2010/12/16/routing-over-nexus-7000-vpc-peer-link-yes-and-no/
Regards
Allan.
Hope you find this is helpful.
Sent from Cisco Technical Support iPad App

Is it possible to Configure VPC Between N5010 and 6513

Hello Gents,
Please let me know if we can configure VPC Between N5010 and 6513(coreswitch).
IF Yes, Does it have any loops or abnormal traiffc behaviour ?
Please refer the attached mail for current network diagram
1) I would like to establish VPC Between N5010 and Cisco 6513 switch
2) if yes, Does the upstream devices above 6513 core switch will forward the traffic from all the
6513 ports connected to N5000 ports or 6513 will send traffic from one up link and block other
uplink ports as part of STP.
3) Is VSS on 6513 is required for Point #1
Please refer some links on this as well.
Appreciate your quick response.
Thanks and Regards,
KA.

Hi Karim ,
You can use this one - you can consider your 6k the FEX as in this example
http://www.cisco.com/en/US/prod/collateral/switches/ps9441/ps9670/configuration_guide_c07-543563.html
On the portchannel to 6k will not configure :
"switchport mode fex-fabric"
"fex associate 100"
This configuration in indended to be used with FEX.
Regards
Dan

How to open a lost file in Microsoft Office Autorecovery

Excel crashed and when it autorecovered my file upon restart it opened the original file with none of the data I had added.
To find the autorecovered file I followed the instructions here: How to find a lost file in Microsoft Office Autorecovery
But now I cannot open the file without seeing the following error code. This happens even if I change the file type listed in the previously mentioned tutorial.
Help!! How do I open the file!?

Well, at least have a soundtrack for my misery now.

How to find a lost file in Microsoft Office Autorecovery

Hi - This isn't really a question, though it would have been a couple of hours ago.
After saving all his files, closing them and closing all apps, my husband rebooted his Mac Pro (Lion). When it restarted, his key Excel file wasn't there. There was no trace of it in Finder, and no trace in Time Machine. A search by Date Modified or File Name didn't show the file anywhere, either. It was like it had been sucked out of the computer and the Time Machine hard drive completely.
Cheering as that thought is, there is another answer.
Microsoft Office has an Autorecovery function that saves files when, for example, there's a power failure. These files are located on the home drive, in the Library (press Option when you click "GO" in the Finder command line at the top of the screen, otherwise Library is invisible). In Library, there is a folder called Application Support. In that folder are folders for a number of applications, one of which is Microsoft. In the Microsoft folder, there is a folder called Office. In that folder are a number of folders, one of which is Office 2011 AutoRecovery. Click that, and any files saved by the autorecovery function will appear.
Hierarchically:
     Finder
          Go
               Library
                    Application Support
                         Microsoft
                              Office
                                   Office 2011 AutoRecovery
The key thing to realize here is that a file which gets saved in Autorecovery DOES NOT appear in any searches by date modified, name of file, etc. It's as if it is hidden completely after being saved. When you turn the computer back on after a power failure, the file pops up and does say something about recovery, but if you're not looking for it, it's easy to miss. As long as you have the file open and keep saving, there's no problem - it's just that when you close it, it seems to have disappeared completely!
I found this information on the Microsoft help pages under a slightly different heading:
http://http://support.microsoft.com/kb/2650066#Method3
So for what it's worth, that's the story, and I hope it saves someone the sheer panic of not being able to find a file in Office.

I kept getting this error message when I was working in Word 2011 and searching for answers:
"This is not a valid file name. Try one or more of the following: Check the path to make sure it was typed correctly. Select a firle from the list of files and folders."
It started about 3 weeks ago. I was driving me bonkers. I found this posting that let me find the hieracy for the AutoRecovery files and reloacted them to Office 2011 >Office folder. I don't know how it got moved to another location (actually the file was in the trash when I found it. When I went to (Word>Preference>File Location>AutoRecovery) it showed the location of the file as being in the trash - Weird. I moved the file to Office and clicked Modify and the AutoRecovery link in Location showed the change that the file was now in Office. It seems that all is well again-at least for now.
According to some sources I found, I thought I was going to have to reload Word 2011. I did not have to go through that hassel. Thanks so much for the response given by margb that helped me solve this annoying issue.
Gwen

Remote Desktop Connection Solution, VPC NOT an option

I downloaded Remote Desktop Connection yesterday B/C I wanted to be able to do work on my mac, I have virtual PC with WINXP but it was way to slooow.
I do not want to play games, I play games on my compaq laptop that's in a full sized docking station.
So I was looking and reading at this software (RDC) and it sounded like a viable option, My laptop has a 14" monitor but the iMac is a 17".
so I downloaded it and set it up, BTW my connection is iMac to Laptop docking station I used a "Crossover Cable".
Set the IP address and I have (Sorry to say) windows on my MAC for nuthing!
It works great ALOT faster than VPC (since it does not have to emulate a Intel CPU).
And the Laptop monitor goes to sleep after 1 minute so now I can have the best of both worlds!

I'm not quite sure why you posted this.
You marked your post as a question... but I can't find one.
Do you have a question or was this somewhat of an "informational" post?

Problem with Virtual PC and Network Connection - VPC gets disconnected

Hi,
I've been having a few problems with a virtual computer and its network connection. I've set up a few computers the same way over the years and they all work fine except this one. We use the Virtual PC and XP mode to access our data from an older
program. The databases are on a server, which are accessed as a mapped drive. Every once in a while (with no particular pattern, sometimes it doesn't happen all day, sometimes it happens every 5 mins), the VPC gets disconnected from the network,
my program returns a file read error and then everything is frozen. When I try to ipconfig/release and renew, it releases correctly then it won't renew. I need to shut down the VPC from the Win7 task manager and even so, it doesn't shut it down,
even when I try to kill the vpc process. The only way it'll come back up is if I restart the computer. The network connection on the Win7 computer doesn't do that.
Is there anything I can do to fix this ?
Thanks,
Melanie

Hi,
Does it become more stable now, actually, I'm afraid that this issue is not related with the drive letter or name. Since you're using bridge mode, the I would suggest you use NAT as a test, it is the default network configuration, which allows the VM
to leverage the external TCP/IP network connected to the host. This is very useful if you regularly move the host computer between different network configurations. NAT is the preferred networking option when there is a shortage of IP addresses, a need to
ensure the VM’s IP address is not targetable from an external network, or a need for connecting using WWAN.
Yolanda Zhu
TechNet Community Support

Best Practice for VPC Domain failover with One M2 per N7K switch and 2 sups

I Have been testing some failover scenarios with 4 nexus 7000 switches with an M2 and an F2 card in each. Each Nexus has two supervisor modules.
I have 3 VDC's Admin, F2 and M2
all ports in the M2 are in the M2 VDC and all ports on the F2 are in the F2 VDC.
All vPC's are connected on the M2 cards, configured in the M2 VDC
We have 2 Nexus representing each "site"
In one site we have a vPC domain "100"
The vPC Peer link is connected on ports E1/3 and E1/4 in Port channel 100
The peer-keepalive is configured to use the management ports. This is patched in both Sups into our 3750s. (this is will eventually be on a management out of band switch)
Please see the diagram.
There are 2 vPC's 1&2 connected at each site which represent the virtual port channels that connect back to a pair of 3750X's (the layer 2 switch icons in the diagram.)
There is also the third vPC that connects the 4 Nexus's together. (po172)
We are stretching vlan 900 across the "sites" and would like to keep spanning tree out of this as much as we can, and minimise outages based on link failures, module failures, switch failures, sup failures etc..
ONLY the management vlan (100,101) is allowed on the port-channel between the 3750's, so vlan 900 spanning tree shouldnt have to make this decision.
We are only concerned about layer two for this part of the testing.
As we are connecting the vPC peer link to only one module in each switch (a sinlge) M2 we have configured object tracking as follows:
n7k-1(config)#track 1 interface ethernet 1/1 line-protocol
n7k-1(config)#track 2 interface ethernet 1/2 line-protocol
n7k-1(config)#track 5 interface ethernet 1/5 line-protocol
track 101 list boolean OR
n7k-1(config-track)# object 1
n7k-1(config-track)# object 2
n7k-1(config-track)# object 5
n7k-1(config-track)# end
n7k-1(config)# vpc domain 101
n7k-1(config-vpc-domain)# track 101
The other site is the same, just 100 instead of 101.
We are not tracking port channel 101, not the member interfaces of this port channel as this is the peer link and apparently tracking upstream interfaces and the peer link is only necessary when you have ONE link and one module per switch.
As the interfaces we are tracking are member ports of a vPC, is this a chicken and egg scenario when seeing if these 3 interfaces are up? or is line-protocol purely layer 1 - so that the vPC isnt downing these member ports at layer 2 when it sees a local vPC domain failure, so that the track fails?
I see most people are monitoring upstream layer3 ports that connect back to a core? what about what we are doing monitoring upstream(the 3750's) & downstream layer2 (the other site) - that are part of the very vPC we are trying to protect?
We wanted all 3 of these to be down, for example if the local M2 card failed, the keepalive would send the message to the remote peer to take over.
What are the best practices here? Which objects should we be tracking? Should we also track the perr-link Port channel101?
We saw minimal outages using this design. when reloading the M2 modules, usually 1 -3 pings lost between the laptops in the diff sites across the stretched vlan. Obviously no outages when breaking any link in a vPC
Any wisdom would be greatly appreciated.
Nick

Nick,
I was not talking about the mgmt0 interface. The vlan that you are testing will have a link blocked between the two 3750 port-channel if the root is on the nexus vPC pair.
Logically your topology is like this:
| |
| Nexus Pair |
3750-1-----------------------3750-2
Since you have this triangle setup one of the links will be in blocking state for any vlan configured on these devices.
When you are talking about vPC and L3 are you talking about L3 routing protocols or just intervaln routing.
Intervlan routing is fine. Running L3 routing protocols over the peer-link and forming an adjaceny with an router upstream using L2 links is not recommended. Teh following link should give you an idea about what I am talking here:
http://bradhedlund.com/2010/12/16/routing-over-nexus-7000-vpc-peer-link-yes-and-no/
HSRP is fine.
As mentioned tracking feature purpose is to avoid block hole of traffic. It completely depends on your network setup. Don't think you would be needing to track all the interfaces.
JayaKrishna

Autorecovery in Photoshop CS6

I use PS CS6 on a Win7 64bit machine.
I noticed several users having issues with the autorecovery in PS. I had some too in the past, and just yesterday I had a PS crashing a couple of times too. The error seemed to be related to the facial recognizing .dll Searching the forum, I had hoped that in the mean time this issue would have been solved, but I couldn't find any satisfying answers.
So I ran a bit of a test with a new file and noticed that in the file's history in bridge, it says the file is being autosaved to the correct folder. However, the PSAutorecovery folder is empty.
So is the one found under the User/AppData path.
I have full access to the folder (admin as well as user), it's safe to say that can't be the problem either.
When opening PS there is a big temp file on the D:/ drive (designated scratch drive). This file disappears when PS is closed. I have no clue if this interferes with the autosaving too.
Hereafter two screenshots :
1. Bridge history on the file as explained
2. Empty PSAutorecover on D:/
After I did these, I deleted the PSAutoRecover file on D:/. I set the scratch disc to C:/, closed PS, reopened it and set the scratch disc back to D:/. The PSAutoRecover folder reapeared with today's date.
I started a file from scratch, added colour, text etc. Again the Bridge history claims to have saved to the D:/PSAutoRecover file, again the folder is empty. I also watched my screen for like 10 minutes and no saving seems to be going on in the background whatsoever. But... when I save manually, suddenly the history in bridge is updated with a list of .psb files. Alas, still nothing shows in the recovery folder.
Am I missing something, because if I am, I really would like to know what that could be. Did some of the updates mess the system up ? Because I do remember it working a long long time ago, when I first had CS6. And then it stopped.

@Curt
I think you misunderstand what I'm trying to say. In Photoshop preferences, you get a choice where you want your scratch drive to be. By default it would be the C: system drive. When your scratchfile is on C: the autorecover file is placed in the user's AppData path (see screenshots below). Bridge seems to keep a history of what is happening to the file opened in Photoshop, hence that's what you see under the bridge history tab (which only appears while working on the file and having saved it manually at least once).
If I understand correctly, your secondary drive is called O:/ and in the preferences you point PS towards it to use as a scratch drive. Hence it's normal that you will not find a saved file under the AppData path on C:/ since you point PS to the O:/ drive as a scratchdrive. My second drive is D:/ but could as well be called X, Y or Z, that depends on how you set your drives up. But when I point PS to go and make the autosaves on D:/ it doesn't work, not for me in any case.
@Noel
As I said I set the scratch file to C:/ again and this morning while working, I kept track of the changes. Again, the history in Bridge showed that the file was being saved, to the User/AppData path.
Screenshot with path highlighted :
When I opened the Autorecover file under that path, the autorecover file was indeed present :
I didn't think of terminating PS at that point to check if the autorecovery would work, but the fact that the file was there, makes me assume it would.
Next I returned the settings to D:/ , closed PS and restarted. And ... yup, Bridge history tells me it's being saved but the PSAutoRecover file is dead empty. Terminating PS via Task Panel didn't issue any recovery.

What is the best way to connect a firewall cluster to a VPC domain

Hi All
Can anyone help me decide what is the best way to connect a firewall cluster to a VDC running in a pair of N7K's which is a VPC domain?
Can I configure a VLAN interface on each VDC and use HSRP? I was planning on presenting one 10GB cable from each VDC to each firewall. Would this work OK? HSRP traffic will go across the VPC peer link correct?
thanks all

No, but the one caveat is vpc orphan ports. If the vpc link between the nexus switches fails for any reason, all the vpc ports on the vpc secondary switch will be forced down. So it's recommended to connect single port devices to the primary vpc switch so the connections stay up. But if you're ok with that, then I don't see any problems.
You have a few options, one would be to run a separate link between your nexus switches for non-vpc vlans. These vlans would not be allowed over the vpc peer-link, or forwarded out vpc's.
See here page 49 :
http://www.cisco.com/c/dam/en/us/td/docs/switches/datacenter/sw/design/vpc_design/vpc_best_practices_design_guide.pdf

10.4.3 with VPC problems

Not sure where to post this but here goes...
I've used VPC for years. Started having problems with it after I installed Tiger so I decided to upgrade it to the latest 7.0.2. One of the problems I was having still persists and I have a new one.
1. In internet explorer when I go to a web site that has text entry fields I can't get my cursor to go into the text field. Either with the mouse or the tab key. So... I can't log into a website that I need to access through Windows. I can't even figure out how to uninstall Explorer and just reinstall it again.
2. Now that I have upgraded my VPC I am now given a window that asks me to authenticate Windows because I have significantly upgraded my hardware since installing it. When I try to authenticate selecting the internet option and pressing "Next" the button indents but does nothing. Just sits there. So I can't authenticate it. Very frustrating.
Any Virtual PC experts out there who can help me? At first I thought this might be a Tiger problem but now I am thinking it is a Windows problem. I really wish I didn't need Windows at all.
thanks,
charlene

Firefox didn't perform well on the site I want to view. It
worked but the sound breaks up.
Might want to try FF 1.5 if you haven't updated already.
THe sound breakup might be more a function of the translations VPC has to do to get the sound to play through the Mac speakers as opposed to a FF problem.
When I tried it today from my desktop with MIE in VPC 6 and
10.3.9 the sound was perfect. ... powerbook [is]
newer and faster has newer OS and uptodate VPC - so should
work better right?
logic says yes, but in reality, maybe not - there's less overhead with the older versions of both the OS and VPC.
(So the older version may actually be more efficient than the new version) I've noticed some lack of coordination between video and audio even on older CD based games (from win95 era)
You can speed up VPC a bit by turning off all the eye candy - animated menus, shadows, etc, as well as lowering the VPC screen resulution and color depth. If you can, give it all the memory you can (512mb is max)

AutoRecovery Microsoft Word 2008 - no auto recovery files?

Hi everyone,
Let me know if I'm missing something here...
I am trying to recovery a file created in Microsoft Office 2008 for Mac. The file was lost after a power outage. In an attempt to recover the file, my first thought was to check for the file in the Microsoft AutoRecovery 2008 folder within my hardrive. However, the folder only contains a total of four files! Why? If my Microsoft Word is set up to auto save a document every 10 minutes...then how is it possible the folder could only contain 4 files? I am at a loss of how else to recover this file. I am currently attempting to do so with a free trial of Data Recovery Software to see if the file I lost even still exists, with no success so far.
Any help would be appriciated.
Thanks.

jwaldron91 wrote:
I guess I was expecting more than four.
Why? How many?
files I have recently written, and then not saved, have not autosaved, and the file I just lost is not recoving itself either.
As Microsoft tells you any chance it gets, AutoRecover is not a "substitute for regularly saving your files […]. Saving your files often is the best way to preserve your work." (That's from Word 2008 Help.)
An AutoRecovery file is deleted automatically when the respective Word file is opened and saved, or opened and closed without any changes. Barring bugs or other errors, the four files you found presumably correspond to four Word files which did not meet those conditions.
And thanks for this tip, but neither worked.
Then restore from Time Machine.

Problems in using Windows Explorer with VPC Virtual PC?

Has anybody experienced problems in using Windows Explorer with VPC Virtual PC?
Lacking any "forbidden" or "appropriate usage" guidelines, I regularly use Windows Explorer (Windows 2000) to transfer file from the desktop. I have occasionally sensed that this might be wrong. Today I inadvertently clicked the MAC harddrive instead of the Desktop (within Windows Explorer) and caused all manner of mischief.
Any other views please?

Let me correct this:
I regularly use Windows Explorer (Windows 2000) to transfer files from the "Mac" desktop
Any ideas please Virtual PC VPC users?

VPC Autorecovery

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