6500 with SLB blade dropped the packets from HA device.

A weird behavior observed in 6500 with SLB blade. the topology is as below:
client--HA---6500 with SLB----server farm
The first Syn packet reached the 6500 with client MAC address as source MAC and can be forwarded to the server correctly. But due to HA vendor special behavior, the second Syn packet's source MAC is rewritten to HA device MAC address and this Syn is dropped by the 6500.
Is this a special feature for 6500? And is it possible to change this behavior?
Thanks in advance.

Thanks for your reply.
1, HA device is from other vendor. It works as transparent mode and the session will be processed by 2 blades in the round-robin schedule.
The first SYN is processed by the master and reach the 6500 with client MAC as the source MAC. the second SYN is processed by the slave and the source MAC is rewritten to the slave's interface mac. This SYN packet is dropped by either 6500 or CSM, not quite sure.
2, The image on the 6500 is as below:
Cisco Internetwork Operating System Software
IOS (tm) s72033_rp Software (s72033_rp-PK9SV-M), Version 12.2(17d)SXB10, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2005 by cisco Systems, Inc.
Compiled Thu 11-Aug-05 14:15 by kellythw
Image text-base: 0x40020FBC, data-base: 0x41F20000
cisco WS-C6503-E (R7000) processor (revision 1.1) with 458752K/65536K bytes of memory.
Processor board ID FOX0930005J
SR71000 CPU at 600Mhz, Implementation 0x504, Rev 1.2, 512KB L2 Cache
3, which command should be used to "Capture a trace of the csm etherchannel"?
It seems that only the SYN with rewritten source MAC is dropped. The SYN with client MAC works fine.
Should you need any other information, pls let me know.
Thanks & Regards

Similar Messages

I would like to copy all the songs from one Ipod into another. All the songs are into my Itunes account, I tried to drag and drop the songs from the old Ipod to the new one but it doesn't work. Is there a way to do it ?

Hello everybody,
I would like to copy all the songs from one Ipod into another. All the songs are into my Itunes account, I tried to drag and drop the songs from the old Ipod to the new one but it doesn't work. Is there a way to do it ?
I share one Itunes account with other people from my family and one person would like to keep the same songs on the new Ipod as the ones which were on the old one.
Thanks in advance for your answer.
Yan

Hello Chris,
Thanks for your answer. I was hoping for an easier answer. Too bad there is no drag and drop solution, it would have been much easier.
Thanks for answering so fast.
Bye.
Yan

Help needed with populating a drop-down list from an Access Database

Topic
data drop-down list
Jason Murthy - 11:39am Feb 14, 2005 Pacific
Hello,
I am trying to use the data drop-down list from the custom library. I enter the name of my data connection and the other 2 variables in quotes when they are initialized, just like the example says to, but it still doesn't work. Anyone have any thoughts?
Thanks,
Jason
Reply To This Discussion | Back to Topic List | Bookmark | Change Subscription
To start a NEW discussion click on the Back to Topic List link and select Add Topic.
If you are in an archive forum please go up to the main topic list (archives are read only).
Messages 11 messages. Displaying 10 through 11.
First Previous Next Last Show All Messages
Denzil White - 5:46am Jul 28, 05 PST (#10 of 11)
Oh and before you say anything more I have also tried changing it from Javascript to the FormCalc, and no diff, maybe I am more stupid than I realised, heh,heh
Post Reply | Bookmark
Henk Pisuisse - 12:06am Aug 9, 05 PST (#11 of 11)
I am having trouble (sleepless nights) with populating a drop-down list from an Access Database. The result is: I only get the first record from the data connection. So the connection works but I cannot go through the other records. Maybe there is an other way to do this.
I am trying to selectively fill a form with data from an MS-access database.
I hope someone can help me.
[email protected]
The Netherlands (small country in Europe)

If you email the access DB and the form to [email protected], I will try to take a look at it for you.

Hi, I have a Catalyst 6500 with X6K-SUP2-2ge, the IOS and bootlader image been wiped out, it starts in ROMmon SP mod end can't switch to RP to start download the IOS using Xmodem, though it shouldn't work in ROMmon SP omde but the xmodem is not gving the

Hi, I have a Catalyst 6500 with X6K-SUP2-2ge, the IOS and bootlader image been wiped out, it starts in ROMmon SP modw and I can't switch to RP to start download the IOS using Xmodem, though Xmodem shouldn't work in ROMmon SP mode but the it's not gving the
not executable message, the slot0: and disk0: are not accessable can't see the files inside, when I try the dir slot0: or dir disk0: it says it can't be opened and when I try to boot from them there's noting as well, what can I do to load an IOS image to the booflash: or slot0: ,each time I load the image using Xmodem at the end it gives me *** System received a Software forced crash ***
signal=0x17, code=0x5, context=0x0
When I run the command:
rommom1> boot bootflash:
boot: cannot determine first file name on deice "bootflash:"
rommon2> boot slot0:
boot: cannot open "slot0:"
boot: cannot dtermine first file name on device "slot0:"
BTW System Bootstrap, version 7.1
I''m looking to format the PCMCIA using a PC and format it to FAT16 and copy the boot image into it and then try to load from the PCMCIA afterward if it works I'll format it using the Supervisor engine 2.
Any one have another new idea I can use, thanks in advance

This is a potentially complex issue.
Is this SUP configured to run as IOS native or CatOS Hybrid?
While in ROMMON can you do the 'dev' command and see whad drives are recognized. Then 'dir' the drives that the SUP recognizes.
Can you provide the screen captures as it boots?
You would be bette served by hacing a TAC case.

*apfMsConnTask_0: spam_lrad.c:18962 LWAPP header parsing failed, dropping the packet

            Hi ,
Today i face strange error i cant find solution. If anyone knows please help.
     3/1/2013 6:30:43 PM    x.x.x.x    Error    EFWLC01: *apfMsConnTask_0: spam_lrad.c:18962 LWAPP header parsing failed, dropping the packet
    3/1/2013 6:30:42 PM    x.x.x.x   Error    EFWLC01: *spamReceiveTask: spam_lrad.c:18962 LWAPP header parsing failed, dropping the packet
    3/1/2013 6:30:42 PM    x.x.x.x   Error    EFWLC01: *spamReceiveTask: spam_lrad.c:19081 Received invalid UDP port (5247) in the packet from AP     70:81:05:af:bb:e0, dropping the packet
Where as this 70:81:05:af:bb:e0 mac is of ap-manager Interface
During Error Message some clients were facing outage. But now error is not recieved again. I want to know root cause of this error message which i canot find on cisco website.
WLC Controller Model is AIR-WLC2106
Software Version                 7.0.235.0
Up Time                 199 days, 11 hours, 2 minutes
Jawad

UDP 5247 is the CAPWAP/LWAPP control protocol. The protocol packets obviously must have been corrupted and that is why the Controller could not interprete messages from the AP. The only resolution is to either use the Cisco bug toolkit and search if it is a bug perculiar to 2106 WLC or you open a TAC support case.
I would suggest that you hold off till the error occurs again. If it does, swap the AP and if it continues, open a TAC case.
Cheers

Airtunes intermittently drops the signal from iTunes

My Airtunes intermittently drops the signal from iTunes and I can't figure out why. It happens is I am playing internet radio or from iTunes collection. Sometimes it will play for hours without issue, then it may drop the signal for a few seconds and pick it up again. Every once in awhile, it might do it every 5-10 minutes of so.
Some quick facts:
* Mac mini G4 with 512k of ram. Running Leopard 10.5.8 and it has Airport.
* iTunes 9.01
* The N version of AEX. I believe all the firmware is up to date. (I ran check for software updates and nothing came up).
* Mini is located on the 2nd floor at the front of the house. AEX is located on the 1st floor at the back of the house. Distance is about 30 feet (guessing). Also, I live in an interior townhouse.
* This problem started when I switch from Comcast to Verizon FIOS. The Comcast setup had cable coming into the basement where I had a wireless Linksys router. The Mini would pick up the signal from it wirelessly. Everything seemed to work fine with the AEX (same location on the 1st floor). I switched to FIOS and it goes through my ethernet port. I disconnected the Linksys router/Comcast.
* Note, I don't think it is related to any of my appliances, etc. Not sure about the neighbors, but since I haven't has the problem before the switch to FIOS, I am thinking that would not be the case.
Thanks in advance for the help!
John Mc

Help (thanks)

My iPhone 5s was bought with full price in the USA from Sprint, and I was told that it is a global phone. And I can use it in china. But I can not use it in the USA, so could you mind help me to solve that problem. I think someone of you must help me to

My iPhone 5s was bought with full price in the USA from Sprint, and I was told that it is a global phone. And I can use it in china.
But I can not use it in the USA, so could you mind help me to solve that problem.
I think someone of you must help me to solve this problem !
Details:
SN:F2*****FDR
<Edited by Host>

See the response in your other thread:
https://discussions.apple.com/message/24641427#24641427

Just update to Pages 5.1 - its dropped the pictures from my Pages files - 'Some features aren't supported - objects in table cells were removed' - how do I get pictures back?

Just update to Pages 5.1 - its dropped the pictures from my old Pages files - 'Some features aren't supported - objects in table cells were removed' - how do I get the pictures back?

Thanks Peter
Can you just walk me through dumping Pages 5 and getting to the Applications/iWork folder - and does this mean that when I see future Pages Upgrades I should block them?
I'm new to Apple so need a step by step
Many thanks
Glyptic

HT4993 My iPhone 5s was bought with full price in the USA from Sprint, and I was told that it is a global phone. And I can use it in china. But I can not use it in the USA, so could you mind help me to solve that problem. I think someone of you must help

My iPhone 5s was bought with full price in the USA from Sprint, and I was told that it is a global phone. And I can use it in china.
But I can not use it in the USA, so could you mind help me to solve that problem.
I think someone of you must help me to solve this problem !
Details:
<Edited by Host>

xinyi93 wrote:
My iPhone 5s was bought with full price in the USA from Sprint, and I was told that it is a global phone. And I can use it in china.
But I can not use it in the USA, so could you mind help me to solve that problem.
Yes, the iPhone 5S is a global phone. However, Sprint will only unlock phones for use on GSM networks outside of the U.S. In the U.S., that phone can only be used on Sprint's network.

HT4623 Dear AppleCare, My iPhone 5 was bought with full price in the USA from Sprint, and I was told that it is a global phone. But when I am back in China using local carrier, Can not be activated

>
>>Dear AppleCare，
>>My iPhone 5 was bought with full price in the USA from Sprint, and I was told that it is a global phone.
>>But when I am back in China using local carrier, Can not be activated
>>I can't believe that !
>>>Details:
>>>SN:F1*******8GL
<Personal Information Edited by Host>

Sorry to tell you this but this is not AppleCare.
This is a forum of users just like yourself who do their best to help other users.
We are not able to help you with your problem

Had a problem with newest update and the advice from turingtest2 resolved my problem just to say thanks! Had never used this route before so was less painful than thought it would be again thanks.

Had a problem with newest update and the advice from turingtest2 resolved my problem just to say thanks! Had never used this route before so was less painful than thought it would be again thanks.

how can i find out what the fix is that works..please

The ios8 update is causing innumerable problems with my ipad. The info from my calendar just disappeared, I am typing blind with the keyboard most of the time, and I cannot upload pics or paste to FB. When will this be fixed and what can I do in the

The ios8 update is causing innumerable problems with my ipad. The info from my calendar just disappeared, I am typing blind with the keyboard most of the time, and I cannot upload pics or paste to FB. When will this be fixed and what can I do in the Meantime?

Have you tried yesterday's update to iOS8.0.2?
iOS 8.0.2
This release contains improvements and bug fixes, including:
• Fixes an issue in iOS 8.0.1 that impacted cellular network connectivity and Touch ID on iPhone 6 and iPhone 6 Plus
• Fixes a bug so HealthKit apps can now be made available on the App Store
• Addresses an issue where 3rd party keyboards could become deselected when a user enters their passcode
• Fixes an issue that prevented some apps from accessing photos from the Photo Library
• Improves the reliability of the Reachability feature on iPhone 6 and iPhone 6 Plus
• Fixes an issue that could cause unexpected cellular data usage when receiving SMS/MMS messages
• Better support of Ask To Buy for Family Sharing for In-App Purchases
• Fixes an issue where ringtones were sometimes not restored from iCloud backups
• Fixes a bug that prevented uploading photos and videos from Safari
For information on the security content of this update, please visit this website:
http://support.apple.com/kb/HT1222

Your contacts are being synced with your iPad over the air from iCloud

tl;dr: iPhone works properly with iTunes 11.1 and iPad does not. Can't sync with both iTunes and iCloud to separate, distinct Calendar/Contact/Notes groups.
Explanation:
Ever since iTunes 11 was released (I'm on 11.1 now) I'm unable to sync Contacts, Calendars, and Notes via iTunes because I'm using over the air syncing from iCloud. As late as iTunes 10.7, this was okay, because "On My PC" groups would sync perfectly with iTunes, and iCloud groups would sync perfectly with iCloud.
In fact, this still works, today, but only on my iPhones.
However on the iPad I get the message "Your contacts are being synced with your iPad over the air from iCloud." (Well, yeah, I know that. My iCloud contacts should continue to sync via iCloud. I don't want to turn off this behavior.)
The "workaround" used to be sticking to iTunes 10.7, which had correct behavior for both iPad and iPhone. Of course iOS7 nuked that option.
Is anyone aware of another workaround? (Merging my professional Outlook stuff into my iCloud stuff is not a workaround.)

I can place a bounty. $20 USD to your Paypal account for a fix.

HT1296 I'm trying to sync the calendar from my phone on the my new mac. the "sync calendars" blurb in iTunes says, "your calendars are being synced with your iPhone over the air from iCloud".. not nothing is happening. what to do? what to do?

I'm trying to sync the calendar from my phone on the my new mac. the "sync calendars" blurb in iTunes says, "your calendars are being synced with your iPhone over the air from iCloud".. not nothing is happening. what to do? what to do?

or even better on mac sign into icloud with same apple id under system preferences and icloud
they will merge automatically
Peace, Clyde

Drop the minus from an int

Hi,
I was wondering if there was a way to drop the minus from an integer. For example, say the result of a sum was -20, I want to assign 20 to a variable
Thanks for your time,
atreides7887

atreides7887 wrote:
Hi,
I was wondering if there was a way to drop the minus from an integer. For example, say the result of a sum was -20, I want to assign 20 to a variableDo you know what the mathematical term for that is?

6500 with SLB blade dropped the packets from HA device.

Similar Messages

Maybe you are looking for