Cisco Wireless :: 1142 AP 100mb Versus 1000mb Uplink?
Aug 14, 2012
Is there a big difference in operating AP's when they are uplinked at 100mb vs 1000mb? We have 2 "main" offices that have AP's that are all connected to our access switches at 100mb. Recently with the addition of mobile devices, phones, etc we are seeing some issues. Today, we had a meeting room that had 20+ people connected to one AP and they started seeing issues of people getting disconncted or unable to connect.Just wondering if the uplink could have anything to do with this, or if we are just over subscribing the APs?
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Dec 23, 2011
Currently I'm using BT Broadband with a Cat 5 Ethernet cable.My laptop has a gigabit Ethernet port, and I have the cable plugged in.Is there a way to determine whether or not the cable is capable of 1000Mbit/s, as I am receiving 100Mbit/s, when I check the connection.Also, will replacing the cable with a new one achieve the full 1Gbit/s?
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Jun 6, 2012
the standard Interframe gap in 1000Mb/s is 96bit (12 bytes), i want to know that is it possible for Gigabit Ethernet IFG can be reduced to a period of 64 bit times (8 bytes).
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Jul 31, 2011
4402's been running quite happily until recently. I have 11 wlan's configured, but only 5 are enabled at this moment in time.
There are 26ap's connected to the 4402, a mixture of 1130's and 1142's. The memory error in the subject is popping up quite frequently.
No reference I can find on this forum or other Cisco.com.
*osapiReaper: Aug 01 14:35:07.004: %OSAPI-1-MEM_LEAK_LOW_ALARM: osapi_task.c:5105 Free System Memory went below 100MB
*osapiReaper: Aug 01 14:34:56.996: %OSAPI-1-MEM_LEAK_LOW_ALARM: osapi_task.c:5105 Free System Memory went below 100MB
*osapiReaper: Aug 01 14:34:46.988: %OSAPI-1-MEM_LEAK_LOW_ALARM: osapi_task.c:5105 Free System Memory(code)
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Nov 18, 2011
I have an older Wireless Access Point router (BEFW11S4) which I retired when I purchased a Wireless-G Broadband Router (WRT54G). I have added a 5th PC to my home computer network that does not have wireless capability. So now I have exceeded the 4-port limit of the WRT54G. Can I UPLINK from a Wireless Access Point router (BEFW11S4) to a Wireless-G Broadband Router (WRT54G)? I browsed the BEFW11S4 User Guide and could not find specific setup instruction for connecting another switch.
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Feb 20, 2012
I want to know which router can be used on 100mb cable connectionThe router will be using the connection from cable modem on bridge mode/modem mode with eth to routerI kind of have a idea looking at performance ratings but ppl have mixed opinions when you enable NAT and ACLs etc etc285129013825.
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Aug 16, 2011
you have a Cable Modem and are paying for 30MB/sec download or better service, but the network connection on the cable modem is only 10/100; all very common today.Your network connection is showing it's connected at 100 (computer - router - cable modem)....now on the technical side, remember that a 100 MB network connection can only transfer data at a maximum rate of 12.5 MB/sec (not something the normal home user knows or even thinks about).So here's the question; why would you pay for 30MB/sec download speeds when the cable modem itself can only transfer (in theory) 12.5MB/sec to you over the network?
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Nov 29, 2011
I'm looking into upgrading my WAN link to 100Mb via Fast Ethernet link. I'm waiting to hear from ISP about what exact technology they use, but according to my manager they will be coming in over fiber and then terminate to copper. I currently have 2811 in production with two T1 cards bundled together. 2811 has basic configuration with only 2 ACLs. I have ASA 5510 for NAT, Ipsec and other services. What router or networking device (layer 3 switch, such as 3560G perhaps??) should I use to accomodate 100Mb link? It seems that 2811 will not handle that kind of bandwith..In short the max recommended bandwidth limits for the 28xx series are as follows:
2801--2 Mbps
2811-4 Mbps
2821-8 Mbps
2851-12 Mbps
I don't want to create a bottleneck and am looking for appropiate solution to accomodate 100Mb link. Also, could ASA 5510 become a bottleneck in my scenario?According to Cisco docs ASA5510 can handle 300Mbps of firewall througput, but I'm not sure how it'd work in production...
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Sep 30, 2011
if i plug a cisco 880 router in to a 100MB WAN Ethernet circuit what throughput will i get? on cisco site it says 25mb/sec but if it is Ethernet shouldn't it be done in hardware and get the full 100mb/sec?
I know that a 1841 plugged in to a 40MB WAN circuit can match that speed but Cisco site say it only can do E1 speed.
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Nov 27, 2011
I have three ESW-540-24 10/100/1000 Switches in a small school environment
1. ESW performs as a server switch for out small cluster of VMWare ESXi Hosts and iSCSI SAN with a link-aggregation/lacp/etherchannel connection to the backbone switch, and a Link-Aggregated Connection to the thrid ESW switch via a multimode optic fibre link to a near-site backup and DR location
2. The second ESW acting as network backbone links back to the server switch and our older LinksysSRW224G4 (four SRW224G4s) switches using Aggregated Links / LACP to reduce bandwidth contention and allow for link redundancy
3. The third ESW as mentioned previously is at the backup DR location linked back to Switch 1
When using Single 1GB links between these three switches I can almost saturate the 1GB link (80-95% utilisation) as soon as link aggregation is configured by bonding 2x 1GB links together to form an etherchannel link utilisation will not exceed 100MB (network monitor graph on a server/ workstation runs flat at 10% utilisation) I have tested this multiple times useing large file transfers accross our SANs (which have high enough throughput to saturate links) and can confirm that performance degradation occurs as soon as an etherchannel is configured on the same ports (regardless of manually setting admin speed and duplex of copper ports etc) all indicators specify that ports are running at 1GB even though throughput REDUCES by 90%.
We are not running the latest firmware yet (2.0.3), however I have read the release notes for newer versions (2.1.16 and 2.1.19) and there is no indication of a fix for etherchannel/lacp performance issues.
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Nov 6, 2012
So I recently got a new computer today and it won't let me use my 100mbps of internet bandwidth. (Asus Sabertooth Z77 with an Intel 82579v gigabit lan controller) I noticed that at the LAN connection properties>Properties>Configure>Link Speed tab the 'Speed and Duplex' option was on Auto Negotiation and it was only accepting (or supporting) the 10mbps Full Duplex. When I switched it to 100mbps Full Duplex it would mark my connection icon with a red cross and when I clicked diagnose it said "Please connect your ethernet cable or your cable might be broken". So I tested my internet speed with that same cable on a different computer (laptop) and it worked with 40Mbps, so I don't think the cable is broken. Also I just recently downloaded some drivers but one was specifically for the Intel LAN controller but I'm a total noob for all of this computer stuff I don't know if it messed it up or something. Is it the motherboard that's not working correctly?
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Jun 4, 2012
I have a Cisco WRVS4400N on the latest firmware and I have just had my Virgin internet connection upgraded to the 100Mb. Once i thought it was upgraded i checked with a broadband speed test and it came back as 15Mb download and 5Mb upload. Before i rang Virgin i thought i'd check with a direct connection from my pc straight to the modem. Ran the speed test and it came back as 100Mb download and 5Mb upload. I thought the best thing to do is restore my settings back to factory and its still the same.
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Jun 4, 2013
I'm trying to configure and etherchannel between 2 switches. A 3750 and a 3750G, but the port channel is down: 3750. [code]
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Feb 24, 2013
Am trying to joing a Joining SF 300-48P 10/100mb Switch to a SRW2038 Gigabit Switch,
I purchased a "Cisco SFP+ Copper Twinax Cable - Twinaxial cable - SFP+ - SFP+ - 1 m" but I am uable to get connection
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Sep 4, 2012
I have a c3560 switch that has two gig fiber modules in it. I need to uplink fiber to one of these at 100mb. This is because this port will be rate limited to 20mb and 10 percent is the lowest you can go with the rate limiting command. Is there a 100mb fiber module i can insert in the 3560
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Jan 19, 2011
My ADSL light switches off randomly during downloading a 100mb file. I just cannot complete the download. This has been happening ever since I switched my router to a wireless iBall Baton 150M.
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Nov 28, 2011
I am assuming, that the slowest component on a network determines the connect speed? I am having a small network with 4 pcs and 2 of them show 1GB connect speed while the other 2 show 100MB. What would cause 2 units to run at the 100MB speed on a Gigabyte-Switch and Router?
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Jul 8, 2012
Our network administrator restricts all our new 1Gb switches to only 100Mb, to which he claims it will increase overall performance. Preventing devices from bottlenecking the network. (that is, only restricting the main switch ports, not the uplinks)For example we have a new building with 2x WS-C2960S-48TS-L connected together with FlexJack and then a 1Gb Fiber connection back to our core switch.
This building is on it's own subnet and there is little broadcast traffic. I don't see the point other than it hinders the potential speed we could use. Labs are set up in this building and 1Gb is MUCH faster when it comes to imaging and software deployment.
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Feb 10, 2012
Any difference between G and N routers? Also, can you use either one? I currently have a wireless G. I have added A few wi-fi devices in the last couple of weeks I.E. Smart T.V., I-phone, I pad, and Satellite TV ( the on demand comes from the internet). My internet on my laptop seems to have really slowed down, and I it keeps locking up. I have to go reset the modem, and router to get it working again. Could all these wireless devices being on at the same time be dragging down my speed?
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Mar 20, 2013
We just got (2) Air-lap1242ag-a-k9 units here and i am also working on (2) air-ap1242ag-a-k9 units also.
my question is this, do the lap units function the same as the air-ap1242ag units?
if not, what will it take to make the lap units function like the ap1242 units?
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Jul 8, 2012
I have Cisco AP 1142 standalone and I want this one to operate with WLC.
I have searched in Google, they said I need to upgrade AP1142.
I don't know how to upgrade it.
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Aug 26, 2012
i have a problem using my usb to serial cable connection, i can connect to one router on my work, but i can't connect to AP 1142, (i have tested also con AP 1231).i have a laptop running windows 7 64 bits, before i use a win xp 32 bits, and i didn't have problems.i am using putty, and have installed tera term 4.74 but the same.connection details, 9600, 8, 1, N, N.
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Apr 29, 2013
I can't get connectivity from laptop to AP using cross over or straight through cable to do a tftp transfer from tftp server on laptop to ap.
I held the mode button on ap and powered on to get to rommon. The ap has no ios so it goes to rommon anyway. ap light is blinking red.
ap: set
DEFAULT_ROUTER=10.0.0.1
IP_ADDR=10.0.0.1
NETMASK=255.255.255.224
[Code].....
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Feb 28, 2013
After AP is booted it shows the following message and cannot able to join in WLC:
*Mar 1 07:13:37.000: %CAPWAP-5-DTLSREQSEND: DTLS connection request sent peer_ip: 192.168.71.16 peer_port: 5246
*Mar 1 07:13:37.000: %CAPWAP-5-CHANGED: CAPWAP changed state to
[Code].....
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Mar 6, 2013
I've got a Cisco 877-M at home which i picked up to replace the old Linksys/Cisco WAG160N, which was having dropout issues on my line?I've got a running config going on the router which is currently quite happily handling our LAN requirements (DHCP,IGMP Proxy, Firewall,DNS), but what I want to do is have an upload link QoS policy, which makes sure everyone can be able to access the net with little hassle (Not so much worried about the Downlink QoS, our connection can burst at time to 900k/sec (Currently on a 8160/384 ADSL1 Line, RIM, 300m Cable Length verified by ISP)I'd have to get the running-config from the router when I get home, but for a Home based network, what would be required in setting up a policy for Upload, to allow the following Protocols prioritised access to the net:
HTTP (Top Priority)
IMAP (Top Priority)
POP3 (Top Priority)
Streaming Audio (Med Priority)
BT (Low Priority)
These are the main ones.
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Oct 5, 2011
I have done a wireless site survey at a library and one AP541N will cover everything pretty well. They do have one spot where the radio strenth is not quite as strong, but you would never buy a second access point for just that one area. I did the SIte Survey using a 541N Access point.
Here is my question. I see that the Aironet 1041 is very similar in price and according to the documentation has a stronger power rating and higher antenna gain. Why would I not buy an Aironet 1041?
We are just mounting to a wall and are planning on using the pwrin4 to provide POE for whichever we buy.
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Jan 22, 2012
I just converted AP 1142 to LAP using the image "c1140-rcvk9w8-tar.124-21a.JA2.tar".
The WLC is a 5500 with 2 NIC : one on 192.168.0/24, one on a specific vlan 10.20/16
The main management interface is on 192.168/24 but we defined as management the interface on the 10.20/16 network.
For the access points, we use ports on a native VLAN on 10.20/16 with other available VLANS which are used for the wlan networks
We have 1152 APs which work fine on this config but that needed to be registered on the 192.168/24 network, then we moved them in their VLAN 10/20/16 and they work fine.
We also have 1142 APs which have been upgraded to LAP. These AP do not work with our architecture. They register correctly on the 192.168/24 network, but do not give access to the wlan VLANs. If they are moved in the 10.20/16 network, they don't register to the WLC (message : Timed out while waiting for ECHO repsonse from the AP). The AP do not get an IP.
is there a restriction with VALNs on these AP ? or is something false ?
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Aug 28, 2011
I have an 1142 AP that I am unable to set back to factory defaults.Here is what I have done so far:
- boot AP while holding down the mode button
- ap: delete flash:private-multiple-fs
- yes
- ap: boot
- when the AP boots fully I try and enter any lwap ap commands and get "ERROR!!! Command is disabled"
- the AP name and password were reset to defaults but I am unable to get the IP address cleared.
I've also tried "clear lwapp private-config" and get an error saying the command is disabled.
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Dec 9, 2012
I need to convert some 1142 APs to lightweight mode. They will connect to controllers running 7.3.101.0. I noticed there's two options of Lightweight IOS code available c1140-k9w8-tar.152-2.JA.tar and c1140-rcvk9w8-tar.152-2.JA.tar. Whats the difference between the two versions of code?
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Aug 13, 2012
When we take a look at the internal antennas on the 1142 AP, we notice the 5ghz pointed all the same way, but for the 2.4ghz we can see each offset by 45/120 degrees. It was my understanding that all antennas are omnidirectionals on the 1142, why are those 2.4ghz antennas not all pointed the same way? onfiguration advantage and that each antenna is indeed omnicadirectional? Example, if I shut just one antenna off, do I lose a sector (120degree)?
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Jul 27, 2011
I recently purchased another 1142 AP to expand out our current wireless infrastructure, my question is, what exactly needs to be done for this to work so that users can roam freely and auto-connect to the closet AP with the best connection without getting disconnected?
I have set all the settings the exact same on the new AP to match the existing AP. (How to save the configs into a file would be great, I am not sure how to do that)... But anyhow, before I launch it, I would like to be sure I am correct so I do not bring down the existing network. Of course, the only difference between the 2 are the IP addresses. AP1 is 192.168.2.2 and AP2 is 192.168.2.3
All computers are using Linksys Wireless-N cards.
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Nov 1, 2012
The last three new APs I have received from our supplier (official Cisco 1142 LAPs) have all successfully connected to our 4400 series WLCs but are all reporting as being in an Operational Status of 'Down' ie their A/B/G/N radios are not broadcasting even though the APs are all in an enabled state. Furthermore, there is no steady green light showing on the APs - there is no light showing whatsoever (although they were displaying the familiar red-orange-green lights while they were pulling down the IOS images from the WLCs).
The only strange thing I have noticed is that in the AP config screen, the ‘Mini IOS version’ is shown as being v7.3.x. The other – working APs – we have of the 1142 series show v3.x. I know that controller code v7.2 and above only work with the newer 5500 and 7500 series WLCs. Could this be the issue and have any of you seen this issue previously? I am running WLC code v7.0.230.0.
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Jun 10, 2012
that cisco ap 1142 will support WLC2506 or not .
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