Exchange latency problem after cisco switch implementation

I recently upgraded our network with 9 2950's and 1 3560G switch. I've configured 2 vlans, one for servers and the other for clients and everything seems to work ok except communications to our exchange box. Since the upgrade users receive a message box "requesting data from microsoft exchange" several times during the day. For some users it only appears for a second or few seconds, others it's up for a minute or more.
I've run diagnostics on the exchange box and everything there seems to be ok, but i'm wondering if maybe I missed something in the port configuration on the switches that would cause this type of latency problem. Anyone ever see anything like this before?
Regards,
Dave

Should this be all VLAN interfaces or just the one the exchange server resides in? I looked up this command and it states it is used to keep tcp sessions from being dropped. Is there a command that shows the number of sessions which have been dropped on the switch?
the show interface command only gives me this:
GigabitEthernet0/27 is up, line protocol is up (connected)
Hardware is Gigabit Ethernet, address is 0014.a9fb.bd9b (bia 0014.a9fb.bd9b)
Description: Exchange
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 1000Mb/s, media type is 10/100/1000BaseTX
input flow-control is off, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output 00:00:01, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 210000 bits/sec, 22 packets/sec
5 minute output rate 29000 bits/sec, 10 packets/sec
71823404 packets input, 1002585060 bytes, 0 no buffer
Received 1121971 broadcasts (0 multicast)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 0 multicast, 0 pause input
0 input packets with dribble condition detected
22824962 packets output, 3874554074 bytes, 0 underruns
0 output errors, 0 collisions, 1 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier, 0 PAUSE output
0 output buffer failures, 0 output buffers swapped out

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STATO del LISTENER
Alias LISTENER
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Hi;
Pelase close this tread as answered and keep update issue at:
Re: XE connection problem after using Cisco AnyConnect Client
Regard
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*** Original thread posted on wrong forum ***
Hi all,
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Hi,
According to the description, I found that we re-new a SSL certificate.
"I am thinking of running: Set-OutlookProvider -Identity EXPR -CertPrincipalName msstd:newcomanyname.com"
Just do it. Then remove the old certificate on ISA server and install a new one.
Found a similar thread for your reference:
Renewal of SSL certificate in exchange 2007 with ISA 2006
http://social.technet.microsoft.com/Forums/exchange/en-US/25770038-8491-470a-92fa-8ae50674b7a6/renewal-of-ssl-certificate-in-exchange-2007-with-isa-2006
Hope it is helpful
Thanks
Mavis
Mavis Huang
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Power Over ethernet on Cisco switches - why??

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I ran into a problem today where a switch was updated the "OS of the swithc" without my knowledge by our Infrastructure group. This resulted in a very high latency problem when pulling files from our Apple servers. After some digging we determined that the feature "Power Over Ethernet" had been disabled when they updated the switch's OS. Once we enabled PoE back on those ports, it was back to business.
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Another example is I play two online games, World of Tanks (WoT in short, a tank simulation game) and Ghost Recon Phantoms (a shooting game). When I play both game, the gameplay went smooth but randomly it lags or stutter like 1 second on more, then it went smooth again and then stutter again. The game doesn't became slow (which is called FPS drop if I am not wrong), the display just stop moving and mouse/keyboard become unresponsive during the lag/stutter period. On the other hand I also played WoT on my Pentium 4 PC and it went smooth without any lags, though of course the settings is inferior to my E440 laptop (Ghost Recon Phantoms can't be played on my Pentium 4 so I won't compare it).
Also sometimes the audio sounds 'spiky'.
As I searched online, people said that this is called/related to Latency problem and I should use LatencyMon to check it. After using LatencyMon I found several 'culprits' which causes big latency such as NDIS.sys, ACPI.sys, ATAPORT.sys, storport.sys, etc. I also tried to disable cpu throttling, power management settings and such but the problem doesn't go away.
I am sure that there is something wrong with my hardware because if its caused by settings such as cpu throttling, power management (which I think is software-related) then won't this happen to everybody? I mean, I asked a fellow E440 user and he said that his laptop is fine and my problems doesn't occur on him.
I have phoned Lenovo Customer Service. I was using Windows 7 Ultimate. At first they told me to do clean reinstall and install the drivers in the order the CS give me. I did clean reinstall 4 times to try different driver and program installation sequence to see if I might find a way to fix my problem, but I found no solution (I tried Lenovo CS driver install order on the last clean reinstall). I even tried running LatencyMon after clean reinstall before installing any drivers or updates but the LatencyMon still reports big, 'unhealthy' latency.
Lenovo CS then told me to do hardware scan on Lenovo Solution Center. There are warning on the Nvidia GT740M stress test but the CS told me that the results are good. His last solution is that I should go to a Lenovo Service Center to check for the problem there.
I moved to Windows 8.1 to see if the problem will be solved but too bad it's not. I have ran hardware scan for 5 times, there are two times(or 3 times I forgot) that there is warning on Harddisk SMART short self-test, 2 times warning on Nvidia GT740M stress test, one time scan finished with no warning. Even so, the end result for all the tests is 'Passed'.
I think the problem lies within my harddisk (or something related to data transfer) since when I browse my local drive in windows explorer sometimes it took a long time for the icons to load but sometime it just loads instantly. And I am not sure what that Nvidia stress test warning has to do with.
Also I only use the stock 4GB Ram. Could this related to the problem? Though when I look at Windows 8.1 Task Manager the memory usage rarely goes above 60%.
Last but not least. I plug a wireless mouse on my laptop which I use mostly for playing games, but in the end I switches between mouse-touchpad-mouse and so on during working too. Sometime my touchpad suddenly went unresponsive for few seconds but my mouse is still usable during that moment. Then after I move my wireless mouse, my touchpad become responsive again. Any idea why this is happening? I think this is probably because touchpad driver not perfectly compatible with Windows 8.1 as I don't recall having this trackpad issue on WIndows 7.
Can somebody help me? Does anyone else ever had the same problem as I do?
I am sorry for the really long explanation. Your response will be greatly appreciated.
Thank you.
-Tahta

Hi All, sorry for being a while for a long time.
First of all, I should say that I am not sure if my trackpad/pointing device problem is related to the lag/stutter/latency problem so I should have made two different thread instead. Sorry if anyone got confused with this.
@rallygion, the first OS I used on this laptop was Windows 7 64bit. If I remember correctly I don't experience the trackpad/pointing device problem back then, maybe I was just forgotten tho. I am using Windows 8.1 starting sometime before I made this thread. Now the problem has gone worse, sometime the touchpad & red dot in the keyboard won't work for a whole day so I must use external mouse.
At first I thought its compability problem with Windows 8.1 but now I think the hardware has problem too. However, the keyboard is fully functional.
@waqs, thanks for your suggestion! Unfortunately it doesn't solve the lag/stutter/latency problem.
@ghasan, our problem is quite similar except I didn't use the M.2 SSD. One thing I notice is the disk activity sometimes jumps to 100% when the lags happened.
The problem doesn't lie with the laptop specification is inferior. Fyi, when I play music on foobar2000 it took few second for music to start playing (foobar says 'starting playback..') while on my pentium 4 desktop (which I still use) the music plays right after I clicked the song.
Also, eventhough I've closed all my applications, leaving only music player and microsoft word/firefox, the music which is playing lags (randomly stops for a moment).
The lags also happened when watching videos. I played video on Media Player Classic, turned the statistics on. There happen to be frame drops sometimes. Not framerate drop, just frame dropped. I mean, I think framerate dropping has relation with computer power while in my case the frame just randomly drops, which 'damages' the video, not slowing it down.
I am sure that this is hardware-related problem. I am going to take my laptop to service center but not now since I am in need on my laptop now.
I will give update later when I have gone to the service center.

Cisco switches and virtual ip address(load balancing address) on xenapp portals

Hi I am quite new in configuring cisco switches and stumble across an issue after installing xenapp7.6 with load balanced portal to the ddc`s
It seems i only can ping or get access to portal if using real ip address behind cisco switch from other subnets in my network.
I can ping ddc01 and ddc02 and connect to the portal with http without problem. However when i triy to access the load balancing address of the ddc`s
it wont answer to ping or http
In same subnett it is no problem connecting to the load balancing address of the ddc`s, but in loactions on other subnets i only can access real server ip
eks
dd01 192.168.1.4 ok ping and access behind cisco switch from subnets
ddc02 192.168.1.5 ok to ping access behind cisco switch from subnets
load balancing for both ddc 192.168.1.6 not able to get answer og access from subnets, only in same subnett
Is there any way to configure switch to access the load balancing address of the ddc`s ?
Regards
Pål Arne Røberg

Wrong forum. This forum is dedicated to feedback related to CSC framework itself. You should not wish for response here.
Moved by moderator, no longer apply.

Exchange latency problem after cisco switch implementation

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