Crap Throughput on MESH
Ok, so I have two WLC5508 controllers running 7.0.230.0, which having the two of them probably is inconsequential because all the APs are added to only one controller. The problem I'm facing is that I have several LAP1552E's deployed throughout my facility, and I have several that are doing Ethernet bridging to some Cisco switches using G0. In this, I have a PC at the end of one of these switches, and using Iperf and PingPlotter to get some metrics, and what I'm seeing is >400ms latency with <3 Mbit throughput to the PC. On the 802.11a radios I have 18 Mbit set as mandatory, with everything below disabled and everything above Supported, with all MCS indexes under 802.11n enabled. My channel is set to 161 with a 40 MHz channel-width, and a power of 3 configured.
So, riddle me this... After many days of trying different power settings, channel settings, and such, I can't get better results than above and my channel utilization stays > 75% at all times. I do have video cameras attached to the other bridges switches, and have video QoS set to Bronze and the cameras configured to ~ 1 Mbit bandwidth maximum. What the heck am I missing?
Also, average RAP-MAP distance is ~ 1100 ft and average MAP-MAP distance is 400 ft, with the longest RAP-MAP being 1400 ft and MAP-MAP distance being 875 ft.
I haven't gotten the sniffer installed yet, but I have a new piece to the puzzle. I have some 3502i and 3502e devices on a separate bridge group and switch infrastructure, and today I was doing some unrelated work which required me to enable Ethernet bridging on the indoor RAP and MAP. Can ya guess what happened? I had everyone around me immediately come out and tell me the wireless just ground to a halt.
So, I disabled Ethernet bridging and all was good again, so I broke out Iperf on my laptop connected wirelessly and wouldn't ya know it that as soon as I enabled Ethernet bridging my throughput went to crap. So, relating back to my crap throughput on the outdoor MESH, yep, you guessed it, Ethernet bridging is being used. I plan to confirm my results by turning off the Ethernet bridging on the outdoor MESH and see if my throughput comes back. Granted that doesn't address the high channel utilization, but I wonder what will happen to the throughput.
Earlier this year when I moved to our new WLC5508 and the new 1552e APs, I had a lengthy TAC case because Ethernet bridging was causing some issues thanks to VLAN 1, but that's another story.
Similar Messages
-
Outdoor wireless mesh deployment for major events
I am interested to hear if anyone here has any experience in setting up a large scale wireless mesh deployment that covers an area that are a few blocks.
1. How do you deal with 2.4ghz interference as 2.4ghz and 5ghz band are unregulated. I'm not able to use 5ghz as the end devices are smartphones that do not support 5ghz.
2. How do you deal with the backhaul capacity as each hop for Cisco Wireless Mesh would result in a 50% drop in network throughput.
3. How do you deal with installation of the wireless mesh APs in public areas. Do you install this on a mast and leverage on the lamp post to provide power? Or do you talk to building owners to install the APs on the top of buildings? What are the challenges you face in installing wireless mesh APs in a public area.Hi David,
Here is some info that might help.
Mesh 7.0 design guide
http://www.cisco.com/en/US/docs/wireless/technology/mesh/7.0/design/guide/MeshAP_70.html
Enterprise Mobility
http://www.cisco.com/en/US/docs/solutions/Enterprise/Mobility/emob41dg/ch8_MESH.html
1500 Design Guide
http://www.cisco.com/en/US/docs/wireless/technology/mesh/design/guide/MeshAP.pdf
1550
http://www.cisco.com/en/US/docs/wireless/access_point/1550/quick/guide/ap1550qsg.html#wp57699
1500 install guide
http://www.cisco.com/en/US/docs/wireless/access_point/1500/installation/guide/1500_ch2.html
"Satisfaction does not come from knowing the solution, it comes from knowing why." - Rosalind Franklin -
I am struggling to control the gradient mesh tool. I can't reposition anchors on the edge without reshaping the object. When I use the tool (not generating from the objects menu) it feels like a craps shoot. I never know where the mesh will intersect the edge of the object and I can't change it when it's there.
I've been looking for instructions for this online for days, but I can't find anything. I must have watched a dozen tutorials hoping they would explain it.
Thanks for any help you can provide!OK if you hold the shift key and move the anchor it will do what you want look at the video
http://mysite.verizon.net/wzphoto/GreadientMesh.mov -
Wireless Mesh/Backhaul question.
We have a customer who wants a wireless bridge/mesh link between two buildings. They want as much throughput as possible, better than 802.11b/g 54Mb for preference. We've identified Cisoc 1552E or I APs as suitable devices but we can't tell from the literature what sort of bandwidth we can expect over the backhaul link, will it use 802.11n speeds or are we stuck with b/g data rates? Any advice would be much appreciated.
22mb is the supported data rate I think. Why not look at the Cisco ExtendAir radio. It is 5ghz non-wifi bridge with up to 160mb of throughput and 5 9's of uptime.
http://www.cisco.com/web/partners/pr46/solutions_plus/exalt.html -
AP1231G-A-K9 access points - very slow throughput - Is TKIP the issue?
I recently setup our small office network using the following setup:
Cablemodem <--> router <--> 1231AP(role root bridge with wireless clients) <-> 1231AP(role non-root bridge with wireless clients)
Code on both APs: 12.3(8)JEE
Office network generally has less than 3 wireless clients connected at any one time to either AP.
AP's are a mere 50' apart; clients are all less than 30' from either AP; they all show excellent signal and connected at 54mbps signaling rates.
All is/has been working very well & very stable with the exception of speed. We have business class service from RR, approx 25mbps dl, 2mbps ul. Any hardwired client to the router switch ports are able to download at speeds averaging 23mbps. Any wireless client connected to either AP is never able to exceed download speeds of 5mbps. With no other wireless clients connected except my one test client, I was not able to exceed 5mbps throughput from either AP that I connected to.
I can confirm that the ethernet connection between the router and root bridge is up at 100mbps-FD and not showing any errors:
ap#sh interfaces FastEthernet0
FastEthernet0 is up, line protocol is up
Hardware is PowerPC405GP Ethernet, address is 0013.60cf.bb29 (bia 0013.60cf.bb29)
MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Full-duplex, 100Mb/s, MII
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of "show interface" counters never
Input queue: 0/160/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 5000 bits/sec, 0 packets/sec
5 minute output rate 1000 bits/sec, 1 packets/sec
8054605 packets input, 3141009145 bytes
Received 46005 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog
0 input packets with dribble condition detected
4076106 packets output, 411952731 bytes, 0 underruns
0 output errors, 0 collisions, 4 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out
Wandering thru the cli on either AP shows that all wireless clients are indeed connected at 54mbps to their respective AP and the two AP's are connected happily at 54mbps signaling:
Address : 0013.1a37.b3e0 Name : ap
IP Address : 192.168.0.120 Interface : Dot11Radio 0
Device : 11g-bridge Software Version : 12.3
CCX Version : NONE
State : Assoc Parent : Our Parent
SSID : Tsunami
VLAN : 0
Hops to Infra : 0 Association Id : 44
Tunnel Address : 0.0.0.0
Key Mgmt type : WPA PSK Encryption : TKIP
Current Rate : 54.0 Capability : WMM ShortHdr ShortSlot
Supported Rates : 1.0 2.0 5.5 6.0 9.0 11.0 12.0 18.0 24.0 36.0 48.0 54.0
Voice Rates : disabled
Signal Strength : -51 dBm Connected for : 75169 seconds
Signal to Noise : 26 dB Activity Timeout : 14 seconds
Power-save : Off Last Activity : 1 seconds ago
Apsd DE AC(s) : NONE
Packets Input : 1050695 Packets Output : 296536
Bytes Input : 474651248 Bytes Output : 96734573
Duplicates Rcvd : 0 Data Retries : 63646
Decrypt Failed : 0 RTS Retries : 0
MIC Failed : 0 MIC Missing : 0
Packets Redirected: 0 Redirect Filtered: 0
Here is a config snippet from the AP non-root bridge with wireless clients:
dot11 ssid Tsunami
authentication open
authentication key-management wpa
guest-mode
infrastructure-ssid optional
wpa-psk ascii 7 (snipped)
bridge irb
interface Dot11Radio0
no ip address
no ip route-cache
encryption mode ciphers tkip
ssid Tsunami
speed basic-1.0 2.0 5.5 6.0 9.0 11.0 12.0 18.0 24.0 36.0 48.0 54.0
station-role non-root bridge wireless-clients
bridge-group 1
bridge-group 1 subscriber-loop-control
bridge-group 1 spanning-disabled
interface FastEthernet0
no ip address
no ip route-cache
duplex auto
speed auto
bridge-group 1
bridge-group 1 spanning-disabled
interface BVI1
ip address dhcp client-id FastEthernet0
no ip route-cache
bridge 1 route ip
(The AP root-bridge with wireless clients config is identical to this config with the exception of the station-role and a static IP on the BVI1 interface.)
Are these very slow thoughput speeds normal of this hardware combination?
I did much searching/googling and found claims that by eliminating TKIP it almost doubles the actual wireless speeds our clients can obtain. Is there any truth to this?
Any suggestions or recommendations without changing hardware would be very welcome.
Thanks in Advance!
D.
=============Ok, thanks for the explanation - I understand. But even at a 22mbps signaling rate shouldn't I be seeing throughputs greater than 5-5.5mbps especially since this location is literally 100% free of any outside interference and the interfaces definitely show the clients and non-root bridge (when connected) all being at the highest rate of 54mbps? I tried even in the same room, approximately 40' away, total line of sight, no obstructions, between my laptop and the root AP.
I disconnected the non-root bridge and connected directly to the root bridge during my testing. I was still only able to achieve approx 5.5mbps download. Adding back in the non-root bridge and re-connecting to it I notice slightly lower throughput, approx 5mbps. During testing, my laptop was the only device connected to the network, all other clients were shut off.
Here are the int stats (I've never reset the counters):
Root Bridge:
RATE 1.0 Mbps
Rx Packets: 2178725 / 49 Tx Packets: 39 / 0
Rx Bytes: 335124036 /7595 Tx Bytes: 4965 / 0
RTS Retries: 61 / 0 Data Retries: 5 / 0
Non-Root-Bridge:
RATE 1.0 Mbps
Rx Packets: 2323120 / 50 Tx Packets: 141 / 0
Rx Bytes: 336455923 /7595 Tx Bytes: 17869 / 0
RTS Retries: 2 / 0 Data Retries: 56 / 0
All the other rates, 2-12mbps show single or double digit packet/byte counts until I get to the 36mbps section of each interface:
ap#sh int Dot11Radio0 stati
DOT11 Statistics (Cumulative Total/Last 5 Seconds):
(snipped for brevity)
Root Bridge:
RATE 36.0 Mbps
Rx Packets: 915395 / 1 Tx Packets: 2345589 / 9
Rx Bytes: 93420936 / 70 Tx Bytes: 3370791285 / 874
RTS Retries: 0 / 0 Data Retries: 573981 / 4
RATE 48.0 Mbps
Rx Packets: 2163192 / 2 Tx Packets: 216861 / 0
Rx Bytes: 222455730 / 404 Tx Bytes: 182817967 / 0
RTS Retries: 0 / 0 Data Retries: 106808 / 0
RATE 54.0 Mbps
Rx Packets: 987986 / 0 Tx Packets: 168923 / 0
Rx Bytes: 190467269 / 0 Tx Bytes: 61665042 / 0
RTS Retries: 0 / 0 Data Retries: 34424 / 0
Non-Root Bridge:
RATE 36.0 Mbps
Rx Packets: 2368679 / 0 Tx Packets: 965419 / 0
Rx Bytes: 3396819830 / 0 Tx Bytes: 90880825 / 0
RTS Retries: 0 / 0 Data Retries: 242686 / 0
RATE 48.0 Mbps
Rx Packets: 341870 / 0 Tx Packets: 2156282 / 1
Rx Bytes: 216497093 / 0 Tx Bytes: 215775536 / 210
RTS Retries: 0 / 0 Data Retries: 478619 / 0
RATE 54.0 Mbps
Rx Packets: 1469926 / 15 Tx Packets: 2529678 / 15
Rx Bytes: 411722698 /1122 Tx Bytes: 1366306113 /5159
RTS Retries: 0 / 0 Data Retries: 198532 / 0
I will try disabling the rates below 12mbps and re-test.
I would like to try disabling all encryption and try as well.
Do you know if the AP's will associate if there is zero encryption? -
I have an imac 20 in. The old hard drive crapped out on me. i put a new harddrive in and am now trying to install linux. But the imac doesnt recognise any keyboards
Without a bootable backup/clone or a Time Machine backup of your previous Snow Leopard installation or a saved copy of Lion's install app, you'll have to upgrade your Leopard volume to Snow Leopard (10.6.6+) so you can waste another hour or more DLing the Lion thing again.
-
I am running Photoshop CC 2014 on Windows 8.1 with an AMD quad core processor and AMD E1-2100 APU with AMD Radeon HD 8210 Graphics Card. I have installed the latest driver version 13.152.0.0. When I activate puppet warp, the mesh appears over the image and I can place the first pin. However, when I go to add the second pin, Photoshop crashes. I have tried with on a new, blank file, with just a few lines on it, but, as soon as I place the first pin, the image disappears, and then, as soon as I click anywhere else in the image, Photoshop crashes. I have followed all the online advice about settings under the Preferences/Performance interface, but nothing fixes the problem. Can anyone please help?
BOILERPLATE TEXT:
If you give complete and detailed information about your setup and the issue at hand, such as your platform (Mac or Win), exact versions of your OS, of Photoshop and of Bridge, machine specs, such as total installed RAM, scratch file HDs, video card specs, what troubleshooting steps you have taken so far, what error message(s) you receive, if having issues opening raw files also the exact camera make and model that generated them, etc., someone may be able to help you.
A screen shot could be very helpful too.
Please read this FAQ for advice on how to ask your questions correctly for quicker and better answers:
http://forums.adobe.com/thread/419981?tstart=0
Thanks! -
A question very similar to mine exists here.
I have a SOFS cluster (3 hosts). I connected each without nic teaming at first and later tested with nic teaming. I'm using a single 10GbE Netgear M7100-24X switch. The CSV is configured as a 2-way mirror through storage space using a SAS JBOD with
24 disks. Each host is configured the same way with 32 GB of RAM. 6 GB is set for CSV cache.
I ran ntttcp test (v5.28) with 8 threads. Sending to the SOFS host, I get over 1100 MB/s throughput. Receiving from the SOFS, I get just under 680 MB/s throughput. So the switch looks to be working fine.
When using LAN Speed Test (Lite), connections directly to the file share folders (\\host#\c$\ClusterStorage\Volume1\Shares\folder) for a 200MB file for each server averages to about 700 Mbps write and 2000 Mbps read. Connection to the cluster role (\\sofs\folder),
results in 90 Mbps write and 2000 Mbps read. However, after waiting for a minute for it to start running, the speed test starts and pauses repetitively. I know this doesn't mean much because it isn't testing transfers from SMB to SMB.
Since I can't set up another SMB to test SMB to SMB transfer, I'm jumping straight to Hyper-V. In VMM, I added SOFS file share folder to an existing vm cluster. After that, I migrated a vm to one of the hosts in the cluster with high availability checked
and saw that it indeed used the \\sofs\folder.
Using LAN Speed Test (Lite) on that vm and back to that particular vm host, I'm getting under 90 Mbps write and 340 Mbps read. If you recall the earlier results directly to \\sofs\folder, the write speed is similar to just regular file transfer speed, but
the read speed is 6 times lower. Sending with ntttcp, I'm getting an average of 11 MB/s throughput, which does explain the 90 Mbps write. And receiving from the host, I'm getting an average of 42 MB/s throughput, which also explains the 340 Mbps read speed. But
another vm hosted by the same server without SOFS is giving me 350 MB/s sending and 360 MB/s receiving to and from that host respectively. Although way faster, this does seem a little bit slower. I then ran Passmark Network Test to be thorough. Max speed
of the vm using SOFS is 100 Mbps sending and 330 Mbps receiving. The vm without SOFS is 7500 Mbps sending and 6000 Mbps receiving. I don't know why ntttcp differs from Passmark this much. (Maybe ntttcp not as optimized for 10GbE?)
But disregarding discrepancies on the results for the vm without SOFS, it is still clear that the vm with SOFS as storage is way slower. To rule out nic teaming as the solution to my problems, I've set up nic teaming (switch independent and dynamic) to all
the SOFS hosts. I didn't get much difference in the results. As I do not have another switch, I don't think nic teaming helped with the load balancing. And I haven't set up link aggregation (MLAG) on the switch either.
Is this the speeds that I should be getting, or are there other optimizations or configurations you can suggest? I'll be honest, a single vm on SOFS doesn't lag very much if at all despite its awful throughput I'm currently getting. What I'm scared of is
if I put 50 vms and have SQL Server run off the SOFS.I'm using normal 10 GbE NIC with just RSS; I should have mentioned that I'm only using Intel X520-T2 nics.
As for getting 7500 Mbps throughput on the VM host without using SOFS, let me clarify. On host A, I have two virtual machines. One VM is set up to use SOFS and HA, the other one is just on host A itself. The VM on SOFS is giving me 90
Mbps write and 340 Mbps read. And the VM stored on the host itself is giving me 7500 Mbps write
and 6000 Mbps reading. BTW, typically I get better read speeds than writes, it might be the day and hour. Earlier today when I reran the benchmarks, it was 7300/7500 Mbps write/read. The VM with the SOFS is still the same however.
I was told before that we don't need RDMA at a Microsoft conference, but now I think it's only true for a lab environments... The company I work for does not have
the budget to buy RNIC and SFP+ switches for now.
I'm going to try to implement these
solutions first. I currently only using a single VNIC. Give me a day or two.
What I'm currently wondering about is that the DNS servers on the network are not on the 10 GbE network. I'm wondering if the data is staying on the 10 GbE network and not going out to the 1 GbE network first. This is a total guess. -
Slow iMac - Apple help is so crap
Me again
My iMac supposed to be reliable and fast. Well it is not.
I spend most of my time staring at colorful spinning ball even when performing basic tasks like logging in or opening Safari web page (35 MB broadband is a joke with my iMac performance).
Been on the phone to Apple (have purchased Apple care) and done restarting, reinstalling OS X, checking zillions of statuses, everything is fine, apart from the fact my iMac is very slow.
I have started recording on my video camera my iMac performance to show the great inventors from Apple how easy they took my £1700 and delivered crap. Can very bad performance of 20 months iMac can be explained? oh, and yes Apple Genius (yes Genius) informed me my iMac is old.........
Attaching history of problems........
If that was a PC i wouldnt be surprised
Ok. This one is tricky> to me.
Last two weeks my iMac (14 months old) with latest Leopard has started playing up - freezing, waking itself up, spinning ball for 6 minutes to open Safari etc etc etc). Eventually I ended up cold restarting it 5 times per day.
I have Mac Protection Plan so when I had enough I called Apple today. The first guy I spoke tried to convince me that it was normal behavior (SIC!!!), and when I disagreed to suggest I need to archive current system by holding C key and inserting installation DVDs. I have been asked to call again after installation finishes to be guided what to next.
So when I did the other guy was puzzled why I was asked to do this and came with an idea that my problems are due to Intego anti virus software I had installed as recommended when buying my iMac. This time I was advised to reinstall Leopard from beginning and wipe everything out. I was told to create a folder and move all my important files (iTunes, Iphoto etc) and back them up using Time Machine and restore after. Easy I thought. But after archiving the system my Time Machine says it cant be mounted as the back up volume cant be found and I dont know how to sort it and back up only a folder. Plus I fear to loose 300GB of files.
Sorry guys I bought iMac for simplicity, but to me its Chineese. I am about to throw my iMac through the window.
Any idea?
iMac 24inch 2.8GHZ Core 2 Duo Extreme Mac OS X (10.5.7)
Poikkeus
Posts: 762
Registered: 30-May-2002
Re: iMac stability issues - Mess
Posted: 20-Jun-2009 20:38 in response to: Radek
Aside from relying on Intego, the second Apple guy was probably on target with his suggestions. To fix your system, I'd ask you a few questions:
1. Did you Archive and Install? With a full install, you'd lose all of your data, but Archive and Install keeps your personal apps, etc would remain otherwise untouched.
2. Have you done any diagnostics, like Disk First Aid or Onyx? This helps some basic issues become they become problems.
3. What kind of external backup drive did you use with Time Machine? Did you restore before or after your attempted Archive and Install? How large is your external backup drive?
You may have answered one or two of these questions before, but the more we know, the better chance at success.
iMac (2.93gb) - MacBook (2.1gb) Mac OS X (10.5.7) iPod Touch- v.1 (32gb)
Radek
Posts: 21
Registered: 23-Jan-2005
Re: iMac stability issues - Mess
Posted: 20-Jun-2009 21:07 in response to: Poikkeus
Hey. thank you for taking time to help me.
Few answers , hope that helps
1. I have completed archive and install. When I click on Macinstosh HD icon I can see folder called: Previous System. However when I completed installing and logged in, my system was the same (folders and files unchanged).
2. Done Onyx and Disk First Aid, also trashed all Intego files and restart. Even worse. After 5 minutes iMac freezes and goes crazy. Bluetooth has gone from Hardware.
3.I use Time Capsule with TM. Time Capsule is 1TB.
Hope that helps
iMac 24inch 2.8GHZ Core 2 Duo Extreme Mac OS X (10.5.4)
Carolyn Samit
Posts: 15,109
From: Apple USA
Registered: 05-Aug-2005
Re: iMac stability issues - Mess
Posted: 21-Jun-2009 08:52 in response to: Radek
HI,
First, delete the anti virus software from your iMac.
Next, check the hard disk for errors.
Insert the installer disk and Restart, holding down the "C" key until grey Apple appears.
Go to Installer menu (Panther and earlier) or Utilities menu (Tiger and later) and launch Disk Utility.
Select your HDD (manufacturer ID) in the left panel.
Select First Aid in the Main panel.
(Check S.M.A.R.T Status of HDD at the bottom of right panel. It should say: Verified)
Click Repair Disk on the bottom right.
If DU reports disk does not need repairs quit DU and restart.
If DU reports errors Repair again and again until DU reports disk is repaired.
When you are finished with DU, from the Menu Bar, select Utilities/Startup Manager.
Select your start up disk and click Restart
While you have the Disk Utility app open, look at the bottom of the window. You will see Capacity and Available. Make sure the available disk space never falls below 10% of the total drive.
Get Cocktail and run maintenance.
"waking itself up" Try resetting the SMC. http://support.apple.com/kb/HT1543
Intel iMac 2.66GHz PBG4SDrive iBook4 10.4 Toshiba WinXP Airport Extreme Mac OS X (10.5.7) WirelessMM Airport Wacom Intuos Tablet iLife 09 DW and TTPro Epson Olympus
Radek
Posts: 21
Registered: 23-Jan-2005
Re: iMac stability issues - Mess
Posted: 21-Jun-2009 09:07 in response to: Carolyn Samit
Hi there.
I am afraid things gone worse since yesterday.
I managed to run Disk Utility and everything is fine, SMART is verified too.
At the moment my iMac is flashing grey screen at me. When is stop, it doesnt recognise my wired mouse.
The cursor is moving, but when I try to click on anything... nothing...just a bing sound.You might want to keep Activity Monitor open and when your Mac slows down look at that and see what process might be causing the slow down.
lenn -
Downloaded new iOS for iPhone 5. Now the handset is running hot, keeps freezing on different screens, won't charge on official charger ( only charges on crap poundland one) and battery is loosing 1% every two minutes! I've closed all apps and reset the complete phone but no luck. Any one know what else I can try apart from a new phone?
I have done a factory reset at 45% battery. After the reset it's still hot and at 35% now
-
Wireless Internet Access (Cisco IP NGN or Cisco Wireless Mesh Networkin)??
Dear Cisco Wireless Team
Please educate us on where to start, or the CISCO product we might need to purchase
We are trying to branch out a new Internet wireless access and wireless phone service business in our company, and presently looking for the right Cisco product solution to purchase to enable us offer this service in LAGOS, NIGERIA.
The service will be rendered in Africa, the country NIGERIA, and the city LAGOS.
We would like to mount or install the product in Lagos, Nigeria.
As we are new to this kind of service. We would appreciate if the Cisco wireless team can work with us in pointing or directing on the right product to purchase and what are required. We understand the Cisco Wireless Mesh Networking Solution, Cisco IP Generation Network, Cisco 12416 or 7600 Series Router might be the right products to purchase, but we are not sure on what needed or what are required to meet our service need.
Possibly we would like to offer Wireless Internet Access to unlimited subscribers, and also Wireless or Mobile Phone service to unlimited subscribers in Nigeria.
Anticipating your replyI suppose Cisco Wireless Mesh Networking would be a good choice.The Cisco mesh architecture makes it easy to scale coverage as capacity needs dictate, including increasing access point density; adding wired connections, controllers, and radios; and using dual high-powered, high-sensitive radios and a selection of high-gain antennas.Refer the document for IP NGN in the following URL http://www.cisco.com/en/US/netsol/ns537/networking_solutions_solution_category.html
-
Hard drive performance and data throughput
I am using my macbook pro for work primarily and part of that entails creating/restoring images of other macs. I've had the best luck with SuperDuper however the process is still VERY slow. For instance at this moment with no other applications open other than S.D. and firefox the copy speed is under 5MB/s from my MBP to an iMAC via fire wire.
I am looking for suggestions to increase the performance/IO in the hopes to speed up the process. When purchasing this system the 7200rpm drive was not an option (15") which is unfortunate. I realize that both hard drives in the operation will cause the variable in speed but I want the sending drive as fast as possible.
My thoughts right now are to purchase a 7200rpm external drive to store backup images and also send from. This would cut out any possible IO on the drive that my mac is performing to run the operating system. Another thought was to upgrade my mac to a 7200rpm drive and use the current 5400rpm drive as the storage for images...in the hopes that it would still provide an increase in restoration speed since it wouldn't be running OSX on it.
Any thoughts or ideas? Experiences? My MBP has the 5400rpm I believe and 2GB of ram.
ThanksI'll try and explain a bit better. I'm not restoring
the same image to different types of macs. I create
images of OTHER macs using my macbook pro to perform
the process as well as store the backup image.
Thanks for the clarification. I do that too, but when I do I use my Mac Pro to clone a Mac via Target Disk Mode to an external FireWire 800 drive.
it helps but its a usb2 enclosure with a somewhat
older hard drive that is only 30Gb. I am looking at
purchasing a firewire 800 external drive but I will
see how this other unit works for now since we
already have it.
Part of your throughput problem may be the overhead issues with USB 2. FireWire uses its own chipset so is more independent of the CPU, and FireWire can sustain high-speed transfers at a higher level. USB is CPU-bound and is more vulnerable to CPU demands from other apps or background processes or other USB devices. So even though USB 2 has a higher theoretical peak (480Mbps), FireWire (400Mbps) actually does better in the real world.
About USB 2 vs. FireWire 400 performance
I'm not sure if FireWire 800 would help because your slowest drive in the chain may not be fast enough to take advantage. -
No matter what page I try to go to the FIREFOX crashes. I go to about crashes it tells me there are no reports. I am on a MAC. The previous version of Firefox worked great ...this update is CRAP! How can you possibly put out a software update that is this bad? Are your programmers trying to put you out of business? This is the worse update that I have ever tried to work with since using a computer.... FIX this pathetic piece of software you call an update....... You help pages are worthless...they just send you in circles and never answer the question. I am on a MAC....I don't need to watch a vide on a PC! FIX your update!!!!!!!!
== Crash ID(s) ==
It never gives me one!
== User Agent ==
Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_6_4; en-us) AppleWebKit/533.16 (KHTML, like Gecko) Version/5.0 Safari/533.16about:crashes only lists crashes that you have reported using the [[Mozilla Crash Reporter]] which comes up after a crash. Because there are so many possible reasons for a crash, getting the crash ID really helps volunteers find the cause quicker.
That doesn't mean we can't help without a crash id. :-) No crashes here, but I'm also on Snow Leopard and using Firefox 3.6.6.
Are you using Firefox 3.6.6? The most common cause of crashes on Mac is the Flash plugin. Are you using the latest version of Flash? You can check at http://www.mozilla.com/en-US/plugincheck/
Do you remember any specific circumstances about when the crash occurred? What sites you were on? -
Is there any way to use windows live mesh with firefox
I cannot access the Windows Live Mesh network when I have Firefox as my default browser
Get an HDMI to component adaptor cable.
Just understand that HDCP dependent content (Netflix, iTunes, etc) will not work. -
Question
i have updated firefox 5.0 and it is a mesh now. No normal startpage, no tools, no extra, plugins gone, how can i get my old firefox back ?? Thanks !!Simply go to:
1.View 2.Select tool bars 3. Uncheck any of the toolbars below: a. Babylon toolbar b. Softonic Eng 7 Community tool bar!
4.Finish.... if nothing happened try to unchechked other tool bars.
Maybe you are looking for
-
Why does Aperture start automatically at boot?
In sys prefs do NOT have A3 set to start at login (it is not in the Login window), yet it does start. This is particularly anoying, as I have to start it with the SHIFT key now to prevent it from going into the "processing" loop. Any help appreciated
-
Uploading CSV file for adding contacts
Is it possible to upload a csv file of my contacts to the contact on my storm? If so, how is that done?
-
Since I upgraded to 9.1 I have been trying to convert songs to 128kbps but when I do the process always fails saying that "[song name] cannot be read or written". It has not been the same song twice in a row, so is this a problem with iTunes or a pro
-
White fringe around my buttons
Hi, I'm using the trial version of Captivate 5 for Mac. I have 8GB RAM, OS 10.6.7, and pretty new Macbook. I'm trying to use the "next_black" series of three buttons (up, down, over). I'm using this so that I can pause the presentation after each sli
-
What video formats are compatible with iMove '11
I want to be able to know what video formats are compatible with iMovie '11. Not how to convert them, just a simple list of video formats I can use.