2960X stack with 3650G question
Hello all,
Please see attached file first.
We have two existing Cisco 3650G with root/secondary bridge for resilience, now we want to add two Cisco 2960X with stack and for two server resilience with LACP, is it possible to do that ?
Thanks
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Posting
The link between the secondary 3650G and your 2960X stack should block.
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Five-Member 2960X Stack with 0.5-Meter Cables
Hi can anyone help me with the proper way to connect a 3 and 5 member of 2960X stack, cause i just read the installation guide but only come the way to four member and i cant fine the logic to connnect 3 and 5 members.
Regards!!!Hi Mate, thanks for me help me, im a little confuse withe the logic on the pattern that u send to me i im going to try to explain hope that im ok:
SW 1 port 1 - SW 2 port 1
SW 1 port 2 - SW 3 port 1
SW 2 port 1 - SW 1 port 1
SW 2 port 2 - SW 4 port 1
SW 3 port 1 - SW 1 port 2
SW 3 port 2 - SW 5 port 1
SW 4 port 1 - SW 2 port 2
SW 4 port 2 - SW 5 port 2
SW 5 port 1 - SW 3 port 2
SW 5 port 2 - SW 4 port 2
Regards! -
ARP issues with 3750X & 2960X Stack
Unable to consistently ping a device from the 3750x that is connected to a vlan on the 2960x stack (po1 between 3750x and 2960x). ARP statements appear normally in 3750x, where the interface vlan resides. The device is pingable from through the 3750x, but not from the 3750x, even when specifying the Vlan Interface as the source.
Thanks for the help.Connected device, then power cycled, then pinged:
lrs3750x-admin#ping 172.18.3.17
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 172.18.3.17, timeout is 2 seconds:
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/7/34 ms
lrs3750x-admin#
Then, spiked the interface, because dot1x was lacking logs and not behaving properly:
lrs3750x-admin# show arp | in 172.18.3.17
Internet 172.18.3.17 0 Incomplete ARPA
lrs3750x-admin#ping 172.18.3.17
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 172.18.3.17, timeout is 2 seconds:
Clear arp no longer fixes the issue for the device.
Thanks! -
I'm new to WDF, so the questions below might be trial. However, I cannot find the answers in MSDN or text book(e.g. Developing Drivers with the Microsoft Windows Driver Foundation)
The questions below only apply to KMDF on Windows Phone.
1. Can I say that one *.sys file is one driver?
2. How to tell whether one driver(say driver A) is in the same driver stack with another driver(say driver B)?
3. If several *.sys files are included in one *.inf file, can I say that those drivers are in the same driver stack?Drivers are not in a stack, the devices created from the driver are. Consider having two identical pieces of hardware in a single computer, each will have a device object which will come from the same driver, but each device object will be in
its own stack. Things can get even more complex since a filter driver can create more than one device object in a single stack.
Just as a single driver can create devices that are in different stacks, your question on multiple drivers in an INF has the same answer, there is nothing that says they will be in the same stack.
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Stacked with Error:-30625:ORA-30625: method dispatch on NULL SELF argument
Hello guys!
I'm totally stacked with Error:-30625 trying to execute CLN_CH_EVENT_SUBSCRIPTION_PKG.CREATE_EVENT_SUB procedure.
i'm initializing that type object like:
WF_EVENT_T.initialize(l_myevent_t);
and then fill it with values...and then passing to that damned procedure. And then em getting error :(.
Could you please somebody explain me what i'm doing wrong or what should i do to avoid this error?!?
thanks in advance.To allow anyone the chance to answer your question, you will need to post the relevant code that leads up to the error code you reference. Without that information, silence is all you can hope to receive.
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Process multiple files and stack with originals
I have had an ongoing frustration with PSE. After ranking my photos I use the raw import to post process multiple photos. Almost all of my post processing occurs during the raw import of my NEF originals. When done I save the files as stacked JPGs. Unfortunately I have not found a way to process multiple files and have them stay stacked with the originals. This results in me doing a "Save As" for every single photo in the photo bin. VERY TIME CONSUMING!!
Has anyone determined a way to process multiple files into JPGs and have them stacked with originals? I am sure this is possible and it is really driving me crazy!! Any help would be greatly appreciated.
Ken
P.S. I did search the forums for key words around this issue and wasn't able to turn up any hits. My apologies up front if this has been addressed before.Check http://photoshopelementsbyadobe.blogspot.com/2010/02/batch-processing-in-adobe-photoshop.h tml if it helps...
But you will have to stack them manually and Auto-suggest stack can also be helpful !
Give it a try and feel free to ask specific questions... -
2960x - stack cables connected while switches power on. SFP ports - status unknown
Connected 2960x uplink using SFP ports both stacks and all 4 ports worked good.
Remote tech connected last stack cable between first and last switch, in 2 different 2960x stacks of switches, while switches were powered on. A longer stack cable was needed. 3 of 4 SFP ports did stopped communicating.
One stack SFP stayed up in switch 2, not master. Completed reload - other SPF connected in switch 4/0/52
Second stack no connection on either SFP, remote tech power cycled switches.
After power cycle one SFP worked in Master 1/0/52, other switches SFP ports show "unknown" when inserting SFP.
Configured port 48 on stack with issue and connected second uplink just fine.
Has anyone experienced this with the SFP's?
- GLC-T P/N 30-1410-03
Looking for documentation on reccommending procedure for connecting stack cables while switches should be powered off or not.
Thanks,Opened Cisco TAC case. the following bug was found.
the two different HBRN's below require 2 different IOS and they cannot be in same stack.
https://tools.cisco.com/bugsearch/bug/CSCur56395
switch#sh ver | s Hardware Board
Hardware Board Revision Number : 0x05
switch#remote command 2 sh ver | s Hardware Board
Switch : 2 :------------ Hardware Board Revision Number : 0x05
switch#remote command 3 sh ver | s Hardware Board
Switch : 3 : ------------ Hardware Board Revision Number : 0x12
switch#remote command 4 sh ver | s Hardware Board
Switch : 4 :------------Hardware Board Revision Number : 0x12
From Cisco.
Developers have recommended to upgrade the IOS version of switches with a Hardware Board revision Number below 0x10 to the release 15.0(2.0).EX5ES. this is the one attached to this email and should be applied to switch 1 and 2.
For switches with a Hardware Board revision Number above 0x10 to the release 152-2.4.E1ES, which I will send you right away. This should be done on switch 3 and 4.
Now, If you load the engineering special, you will need to do a full power-cycle (physically unplug the power and plug it back in for every single switch). A simple ‘reload’ will not resolve this.
The same must be done on Switch-0. For this stack you will only need to load the image attached to this email since all the Hardware Board revision Numbers are lower than 0x10.
done. -
SOLMAN 7.0 problem with Stack16-question on note#1231975
SOLMAN 7.0 problem with Stack16-question on note#1231975
I'm importing Stacks 16&17 into our Solution Manager 7.0 system
and getting errors when importing the Java part in JSPM after the ABAP
went in with no errors. The error matches OSS note 1231975 but we are
having problems understanding what this note is advising to fix the
issue. "SAPJTECHS SP16 component needs to be applied before proceeding
with the whole SP16 stack. It should fix the usages on the systems
fixing missing rows at BC_SL_PARTS table." Each time we start JSPM it
gives the errors mentioned in this note. How are we to import
SAPJTECHS before the rest of the Java Support Packs if we can't get
JSPM to come up due to this error? About half of the Java Support
Packs were imported before this error occured.You can deploy that component manually using SDM (instead of JSPM).
Markus -
Hi all,
I am getting confused in understanding 2960x stacking
1) What is meant by a ring ? i mean if i connect 2 switches together with a single stack cable, will that be a ring ? or half ring ?
2) How 80 gbps stacking bandwidth is calculated ?Under the product at Cisco.com there is a paper on stacking:
Cisco Catalyst 2960-S, 2960-X, and 2960-XR Stacking with FlexStack and FlexStack-Plus Technology: Description, Usage, and Best Practices
http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps12995/white_paper_c11-728327.html
A single FlexStack connection between two 2960 stack members is a full-duplex 10Gbps connection. A single FlexStack-Plus connection between two 2960-X members is full-duplex 20Gbps. Each Cisco Catalyst 2960-S and 2960-X and 2960-XR member supports two FlexStack connections, which doubles the line rate. Each FlexStack member can simultaneously send and receive Ethernet traffic over both stack links at line rate, effectively giving 40Gbps of stack bandwidth per 2960-X member and 20Gbs of stack bandwidth per 2960-S member. When two or more 2960-X members are stacked together, the effective stack bandwidth is 80Gpbs because each member is capable of sending and receiving 40Gbps simultaneously. Same for 2960-S, the effective stack bandwidth is 40Gbps because multiple members are sending and receiving 20Gbps simultaneously. (See Table 1.)
Table 1. Comparison of FlexStack-Plus, FlexStack and StackWise-480
Stacking Item
C2960-X
C2960-XR
C2960-S
3850
Bidirectional stack bandwidth
80Gbps
80Gbps
40Gbps
480Gbps
Hot-swappable stack module
Yes
Yes
Yes
No (built-in)
Max stack members
8
8
4
9
Supports FlexStack
Yes
No
Yes
No
Supports FlexStack-Plus
Yes
Yes
No
No
So because each cable can send 20 Gbps in each direction that is 20*2*2 = 80 Gbps in total. Marketing speak, I know
FlexStack Cabling
Special cables are used to connect Cisco Catalyst 2960 Series Switches together in a stack. These special FlexStack cables can only be used to stack Cisco Catalyst 2960 switches with other Cisco Catalyst 2960 switches that support FlexStack. Figure 4 shows a picture of two FlexStack cables connected to a fully inserted FlexStack module. Notice how the tabs on the cables are on opposite sides of each other. The FlexStack cables are keyed as well. Besides the tabs needing to be away from each other, the keying of the metal portion of the connector prevents the cable from being connected incorrectly.
Figure 4. FlexStack Module with Cables
When each member in the stack has two operational FlexStack links, then the stack is operating in a fully redundant mode. The dual FlexStack connections from each member to two other members are what provide the redundancy. Should any single FlexStack connection break or cease to operate, then the switches in the stack will use the remaining FlexStack connection that is provided.
Deployment Topologies
Figure 5 shows a three-member stack with full bandwidth and with redundant FlexStack connections.
Figure 5. Fully Redundant Three-Member Stack
When one FlexStack link is not present, the stack still functions. Figure 6 shows a stack with incomplete FlexStack cabling. In Figure 6, all data traffic passes through the middle member. This stack is operating in a nonredundant mode. This stack provides only half of the possible bandwidth between members and does not have redundant connections. Only the middle member has full stack bandwidth. The top and bottom members are operating at half the fully redundant stack bandwidth. The fully redundant stack bandwidth for 2960-X and 2960-XR is 40Gbps per member. The fully redundant stack bandwidth for 2960-S is 20Gbps per member.
Figure 6. Nonredundant Three-Member Stack
As you can see in the picture above there can only be 20 Gbps per direction sent because there is one cable missing to complete the ring. The middle switch is also a single point of failure.
Daniel Dib
CCIE #37149
Please rate helpful posts. -
I got a flashing folder with a question mark. I got a new hard drive and upgraded to 4 gigs and can't open anything or reload the operating system? Help? FYI: I have been using boot camp with windows 7 and started getting a kernal_data_Page_error and it would reboot windows, i was trying to do a chkdsk on the next reboot, but thats when i started getting this issue. I have put in a new hard drive and went from 2 gigs to 4. I can not get the computer to do anything, even the monitor does not show anything now????
Prep your new drive:
Drive Preparation
1. Boot from your OS X Installer Disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu.
2. After DU loads select your hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Note the SMART status of the drive in DU's status area. If it does not say "Verified" then the drive is failing or has failed and will need replacing. SMART info will not be reported on external drives. Otherwise, click on the Partition tab in the DU main window.
3. Under the Volume Scheme heading set the number of partitions from the drop down menu to one. Click on the Options button, set the partition scheme to GUID (for Intel Macs) or APM (for PPC Macs,) then click on the OK button. Set the format type to Mac OS Extended (Journaled.) Click on the Partition button and wait until the process has completed.
4. Select the volume you just created (this is the sub-entry under the drive entry) from the left side list. Click on the Erase tab in the DU main window.
5. Set the format type to Mac OS Extended (Journaled.) Click on the Security button, check the button for Zero Data and click on OK to return to the Erase window.
6. Click on the Erase button. The format process can take up to several hours depending upon the drive size.
After formatting has completed quit DU and return to the installer. Install OS X. -
White Macbook has folder with a question mark inside when powered on.
My brother has a white macbook given to him from a friend and when it is powered on it shows a folder icon with a question mark in the inside flashing and it doesn't boot. He has sent me on a quest to get a power adapter and a new hard drive, He thinks the hard drive is fried. Does anyone know for sure if thats the case, I just don't want to buy all that stuff to figure out that the logic board is dead or something else irreplaceable. There is no backup disks, all I have is a replacement leopard disk from apple used for my mac mini.
If it is a retail Leopard disc--black with a giant purple X on it--then yes, you could use them, with a couple of caveats. One, it would technically be a violation of the license to use that install of Leopard on more than one computer, and terms of use on this forum forbid me from encouraging such an action. And two, depending on how old this used MacBook is, your install of Leopard may pre-date manufacture of the MacBook and, as a result, not be able to boot the MacBook anyway. However, judging by the info in your signature, that is probably not a problem.
If the disc for your Mini is gray and shipped with or was meant to ship with the Mini, then no, the disc will not work.
I still encourage you to get the system discs that came with the MacBook originally, as they have the Apple Hardware Test included, and, as I suggested above, running any OS (or other Apple software) on a Mac without the discs means technically it's an unlicensed copy. -
When I boot up my I get a grey screen with a flashing folder with a question mark
I was trying to set up a bootable Linux flash drive for another computer using UNetbootin and I accidentally selected an empty partition on my hard drive instead of the USB I was trying to use. It went through the install process, and I didn't realize it was on my computer rather than the USB. The computer worked fine, so I thought nothing of it.
Today, I go to mess with my computer and it is frozen at the login screen. I restart it, and now I just get a blinking folder with a question mark. I try to go into recovery, but it isn't there. Internet Recovery works fine, but when I go to use Disk Utility or to reinstall the OS it cannot find the internal Hard Disk.
What am I supposed to do here? I don't want to lose all my data.greenbil1
You can contact AppleCare to buy a replacement set of the oringinal Install discs for a nominal cost. You will need the serial number and a credit card to place the order. -
I tried googling several solutions, but so far nothing seems to work. Everytime i start up my laptop i press CMND+R to make it go to the repair disk utility but instead it takes me as if i have to install lion when i had Snow Leopard 10.6.8. When i do go to the repair disk utility, on the eft hand side shows two hardrives one is Untitled and another is Hitachi, i tried downloading snow leopard 10.6.8 onto a Re-writable disc using my windows computer. When i insterted it onto the disc drive it came out under SUPER DRIVE and everytime i double click on the CD it says something about attaching images/ I also forgot to mention that the MAC OSX 10.6.8 Update shows on the left hand side on the bottom in DMG format. I dont know what else to do, please help?
DestroyGalaxies wrote:
a flashing folder came on with a question mark in the middle of it
This is the firmware telling you it can't find a bootable OS X volume.
Usually to solve this all you do is hold the option key down on the built in keyboard while booting the computer, this enters Startup Manager and then you choose OS X to boot, then in System Preferences > Startup Disk you change it to the boot volume and it tells the firmware.
Everytime i start up my laptop i press CMND+R to make it go to the repair disk utility but instead it takes me as if i have to install lion when i had Snow Leopard 10.6.8.
What you have is a 10.7 or 10.8 Recovery HD from when 10.7 or 10. was on the machine previously.
The Macintosh HD partition only was erased and 10.6 installed on it, without erasing the entire drive like what should have occured to remove the Recovery HD partition.
So you have a mucked up machine.
i tried downloading snow leopard 10.6.8 onto a Re-writable disc using my windows computer.
Well there goes your problem there, your downloading illegal copies of Snow Leopard from a untrusted location.
10.6 is not available for download, except from pirate sites. You likely have malware or a compromised system.
I dont know what else to do, please help?
What you need to do is call Apple via phone, tell them the make of your machine and order the appropriate 10.6 disks, they are inexpensive now. Some machines that came with 10.6.3+ origianlly need machine specific disks, other wise pre-10.6.3 Intel Macs can use the 10.6.3 white retail disks.
Once you have the disks, you need to backup your personal information off the computer to a external storage drive using the emergency quick copy method, then disconnect it to prevent mistakes.
Most commonly used backup methods
Next follow this proceedure and make sure to select the ENTIRE drive on the far left with the drive makers name and size, this will erase the entire drive, then install 10.6 from the disk
How to erase and install Snow Leopard 10.6
When finished setup the machine and log onto the Internet and use Software Update to get current on 10.6.8
Don't use pirated software, it's likely been compromised in some fashion. -
Since upgrading to Mavericks, 10.9.1, pictures that come attached to emails no longer display. There is only a blank space that after about 1 minute, has a small box with a question mark. Double clicking on the box will open the image in a separate window. It's very slow and tedious for multiple images. How can I go back to attached and displayed images? If I click on "Forward", the images appear instantly in the email to be forwarded.
Scott,
My problem seemed to fix itself. Or, by shutting down the computer one night, instead of putting it to sleep, may have reset something. Since updating to Mavericks, I always (or usually) let the computer sleep overnight or anytime I'm walking away from it. A few days ago, I was updating notes for my kids about how to find all my stuff and how to turn on my computer, so I wanted to rewrite the start-up procedures for the iMac, just in case they ever need to. Well, I shut it down one night so the following morning, I could write down each step. Lo and behold, the images, etc. are all there again! Solved, but I'm not sure why.
Tom -
I keep getting the little blue box with the question mark
Hi
I have 10.6.7 system software and my safari is 5.0.4
I have called apple twice with this problem already but nothing has helped except for short times.
I have reset safari about one dozen times and when I do I reset the top 7 items and I've emptied the cache in addition just in case. I've also taken my safari preference plist out of my library and trashed it.
And I've run disk utilities many times and restarted my computer. Each thing I do will solve the problem for a short time, even up to a day or more (or less) but then it comes back. For instance on Facebook maybe 1/8th of the thumbnail images have the little blue boxes with the question marks but most don't. I can't figure it out. Sometimes even the iPAD safari gets them too but my firefox doesn't show them and neither does Safari on my eMac.
Yesterday the question marks even showed up in ONE mailing on all 3 computers with the question marks in the blue boxes (meaning my iMac, my eMac and my iPad) but then it just all resolved after a few hours. This does sound like possibly a server problem except today it's happening (in Safari again) only on this iMac in Safari (not firefox) and not on the other two devices.
One more thing, since they changed my radio on the roof for my wireless internet, the 5.8 phone cuts out the internet when I use it. The problem has gotten worse since they changed the radio to the same frequency as the phone, it's a much faster service than the 2.4 radio. I don't know if this is related or not.
Thank you,
Martha<Contact your ISP.
Is it possible, Carolyn, that this would mainly and almost always be only affecting the iMac and Safari in the iMac if it were a server issue? Right now Safari has more blue boxes with question marks than ever and the eMac and iPad have none. Firefox on the iMac has none also.
I should try a direct connection and by pass the router and see if that makes a difference.
I will contact them tomorrow but I want to get clear in my head first all the facts and possibilities.
Thanks!
Martha
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