LAN-LAN bandwidth with 1310 Bridge

I setup LAN-LAN bridge in my lab. with 1310(integ. antenna)
iperf.exe test results maximum 13 mbit/sec
any idea?

before I test the same over 100 mbit switch
(wired-connectivity)
result is 78 mbit bandwidth.
Below is "show dot..." and runnig config
As shown current rate is 54mbit
Signal is very good
I expect nearly 30-40 mbit bandwidth
13 mbit is very low for my opinion
ap#sh dot11 associations all-client
Address : 0021.a026.bc70 Name : ap
IP Address : 192.168.10.91 Interface : Dot11Radio 0
Device : 11g-bridge Software Version : 12.3
CCX Version : NONE Client MFP : Off
State : MAC-Assoc Parent : self
SSID : cisco
VLAN : 0
Hops to Infra : 1 Association Id : 1
Clients Associated: 1 Repeaters associated: 0
Tunnel Address : 0.0.0.0
Key Mgmt type : NONE Encryption : WEP
Current Rate : 54.0 Capability : WMM ShortHdr ShortSlot
Supported Rates : 1.0 2.0 5.5 11.0 6.0 9.0 12.0 18.0 24.0 36.0 48.0 54.0
Voice Rates : disabled
Signal Strength : -22 dBm Connected for : 20232 seconds
Signal to Noise : 76 dBm Activity Timeout : 30 seconds
Power-save : Off Last Activity : 0 seconds ago
Apsd DE AC(s) : NONE
Packets Input : 4014885 Packets Output : 4085019
Bytes Input : 511245571 Bytes Output : 712893677
Duplicates Rcvd : 0 Data Retries : 8044
Decrypt Failed : 0 RTS Retries : 0
MIC Failed : 0 MIC Missing : 0
Packets Redirected: 0 Redirect Filtered: 0
Session timeout : 0 seconds
Reauthenticate in : never
ap#sh run
ap#sh running-config
Building configuration...
Current configuration : 1729 bytes
version 12.4
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
hostname ap
enable secret 5 $1$tH1Q$qw6f1KVjymElfdtmFQKpp1
aaa new-model
aaa group server radius rad_eap
aaa group server radius rad_mac
aaa group server radius rad_acct
aaa group server radius rad_admin
aaa group server tacacs+ tac_admin
aaa group server radius rad_pmip
aaa group server radius dummy
aaa authentication login eap_methods group rad_eap
aaa authentication login mac_methods local
aaa authorization exec default local
aaa accounting network acct_methods start-stop group rad_acct
aaa session-id common
dot11 ssid cisco
authentication open mac-address mac_methods
infrastructure-ssid
username Cisco password 7 13261E010803
username 0021a026bc70 password 7 091C1E5B480447405D0E077D7B
username 0021a026bc70 autocommand exit
bridge irb
interface Dot11Radio0
no ip address
no ip route-cache
encryption key 1 size 128bit 7 A9E1230C15B678330C1A84143965 transmit-key
encryption mode ciphers aes-ccm tkip wep128
ssid cisco
station-role install root
bridge-group 1
bridge-group 1 spanning-disabled
interface FastEthernet0
no ip address
no ip route-cache
bridge-group 1
bridge-group 1 spanning-disabled
interface BVI1
ip address 192.168.10.90 255.255.255.0
no ip route-cache
ip default-gateway 192.168.10.1
ip http server
no ip http secure-server
ip http help-path http://www.cisco.com/warp/public/779/smbiz/prodconfig/help/eag
ip radius source-interface BVI1
radius-server attribute 32 include-in-access-req format %h
radius-server vsa send accounting
bridge 1 route ip
line con 0
line vty 0 4
end
ap#

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Hi All,
The previous problem of which I started another conversation here:
http://forum.cisco.com/eforum/servlet/NetProf?page=netprof&forum=Wireless%20-%20Mobility&topic=General&CommCmd=MB%3Fcmd%3Ddisplay_location%26location%3D.1ddba023
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On the central node, we have an Cisco Aironet 1310 bridge configured as root-bridge. It has a panel of four vertical polarity 17 dBi panel 90? antennas, with more than enough gain (there is a 250 mWatts 802.11 b/g amplifier, before the 4-way splitter) and excellent line of sight to three remote bridges.
The three (03) remote bridges are also Aironet 1310 models, confidured as non-root-bridges.
The problem we have is that it seems that when the three remote links operate concurrently the amount of lost packets is huge. When I shutdown the radio interfaces of two bridges, the remaining bridge makes an excellent link with the central node.
It seems that some hours are more critical than others, also the links operate much worse when there is some (small) network traffic in them.
I have read the 1310 manuals, and I can't find a sample configuration for point to multi-point links.
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I mean, perhaps the 1 x root - 3 x no root configuration is not recommendable for the multipoint link configuration.
Any hints will be welcome.
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Hi All,
Thank you for the information. I configured the distance on the root bridges, but the links showed instability.
I'm using a bi-directional amplifier. It has two pieces. According to the manuals, one is installed indoors, the other outdoors. I'm not sure if the indoors piece has the transmition module or it's only the injector.
We could establish connection at 7 km (around 4 milles) distance from the central point, using 24 dBi antennas on the other side.
However, we have issues with a near located point that is only 1.2 Km (around 0.8 milles) away and has a 13 dBi integrated patch antenna. The signal strenght value we get there is in the -62 to -68 dBm range, and is noticiably (5-10 dBm) lower than the strenght we get at other points of the link. And I have trouble establishing a high quality link with that point, using OFDM modulation. I tend to think that if I remove the amplifier I'm not going to reach that point at all. The EIRP on the central iste is 34 dBm / 2.5 watts, without amplifier it would be 26 dBm / 0.4 watts.
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Good Morning,
We have a setup in place where one of our edge routers connect to a switch through a Motorola Canopy wireless bridge. What I am wondering is; Can I put a c1310 bridge setup at the switch end between the Canopy transport without having to add a switch between the 1310 bridge and Motorola Canopy?
Here are the connection configs:
****on rtr****
interface GigabitEthernetg/g
description 10.e.e.1 LAN-UPLINK to rm-so-3550PWR24-1 int Fa0/24
ip address 10.e.e.1 255.255.255.248
ip access-group outbound in
ip helper-address 10.d.d.d
ip pim sparse-dense-mode
duplex full
speed 100
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duplex full
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diagram of setup and temporary setup:
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I figured it out myself. The answer is yes.

Lower than expected 1310 bridge performance

Hi All,
We have recently installed an wireless WAN link over 7 km (aproximate 4.5 milles) distance. The towers are sufficent for fresnel and earth bulge and obstacles requirements.
We have used Cisco Aironet 1310 bridges (one configured as root bridge, the other as non-root bridge). The antennas are 24 dBi from Hyperlink, connected by RP-TNC to N pigtails, also provided by Hyperlink. According the Cisco utilities, the antennas has more than enough gain for the distance, climatic and topographic conditions.
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Best Regards,
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I have noticed that when the switches have VLAN configured, the latency is very variable. In this particular case, the switches does not have this configuration. I haven't configured VLAN's on the wireless bridges either.
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- I have used Belden RG-6 1530A cable that has even higher grade than the Belden 9077 recommended by the manuals.
- The extension of the cables is around 40 meters (120 foot).
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- On the place where the equipment of both systems coexist, the physical separation between the antennas of the two systems is around 9 foots (3 meters).
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Mar 1 00:00:57.238 Information Interface Dot11Radio0, Deauthenticating Station 0017.0ec6.a590 Reason: Previous authentication no longer valid
Mar 1 00:00:57.237 Warning Packet to client 0017.0ec6.a590 reached max retries, removing the client
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Mar 1 16:19:52.072 Notification Line protocol on Interface Dot11Radio0, changed state to up
Mar 1 16:19:51.072 Error Interface Dot11Radio0, changed state to up
Mar 1 16:19:51.071 Warning Interface Dot11Radio0, Associated To AP Central-2 0017.0ec6.a580 [None]
Mar 1 16:16:00.255 Warning Interface Dot11Radio0, cannot associate: No Response
Mar 1 16:15:50.397 Notification Line protocol on Interface Dot11Radio0, changed state to down
Mar 1 16:15:49.398 Error Interface Dot11Radio0, changed state to down
Mar 1 16:15:49.397 Warning Interface Dot11Radio0, parent lost: Too many retries
Mar 1 16:14:56.788 Notification Line protocol on Interface Dot11Radio0, changed state to up
Mar 1 16:14:55.788 Error Interface Dot11Radio0, changed state to up
Mar 1 16:14:55.788 Warning Interface Dot11Radio0, Associated To AP Central-2 0017.0ec6.a580 [None]
When we make a reload on any of the bridges the link reestablishes for some time. With this message on the root bridge:
Mar 1 00:00:44.194 Information Interface Dot11Radio0, Station NONROOTNAME 0017.0ec6.a590 Reassociated KEY_MGMT[NONE]
Mar 1 00:00:35.456 Notification Line protocol on Interface Dot11Radio0, changed state to up
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Best Regards,
Igor Sotelo.

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There was a similar thread about this last year and I tried what was listed in there to no avail. I have 2 Aironet 1310 bridges, one as a route bridge and the second as a non-route with clients. These worked great for nearly a year, we had no problems keeping the connection up. They were not connected for the last few months but nothing was changed on the configuration, when I put them back up they reconnected just fine and worked for about an hour, not they randomly disconnect with the same message in the log entries below. Is there something wrong with them now? The are using the same antennas as before and are in the same exact locations.
logs from root bridge
Nov 29 13:52:53.311: %DOT11-4-MAXRETRIES: Packet to client XXXX.XXXX.XXXX reached max retries, removing the client
Nov 29 13:52:53.311: %DOT11-6-DISASSOC: Interface Dot11Radio0, Deauthenticating Station XXXX.XXXX.XXXX Reason: Previous authentication no longer valid
Nov 29 13:52:53.568: %DOT11-6-ASSOC: Interface Dot11Radio0, Station Test XXX.XXXX.XXXX Reassociated KEY_MGMT[WPAv2 PSK]
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Nov 29 13:55:16.260: %DOT11-6-DISASSOC: Interface Dot11Radio0, Deauthenticating Station XXXX.XXXX.XXXX Reason: Previous authentication no longer valid
Nov 29 13:55:16.550: %DOT11-4-MAXRETRIES: Packet to client XXXX.XXXX.XXXX reached max retries, removing the client
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Nov 29 2010 13:52:55: %DOT11-4-UPLINK_DOWN: Interface Dot11Radio0, parent lost: Received deauthenticate (2) not valid
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I am not at the remote location any more, but the route bridge had a signal of -78 dB and a SNR of -22 dB. The non-route has -77dB for signal and a SNR of -22 dB. The location has line of sight, over water with nothing in the way.
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We are experiencing a high amount of retries in one direction between two 1310 bridges with external yagi antennas. What would this indicate? Here is a copy of the linktest:
POOR (102% retries) Time   Strength(dBm)   SNR      SNR          Retries
                     msec      In     Out    In      Out         In   Out
      Sent :5000, Avg   5    - 66    - 64    31       45   Tot: 56 10149
Lost to Tgt:   0, Max 49    - 4    - 60   223       50   Max: 12     9
Lost to Src:   0, Min   1    - 72    - 70    22       40
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Linktest Done in 28.106 msec

Good morning,
When (1) bridge had abnormally higher retires than say the other bridge(s) this can be due to a few things. Check the config of the bridge for any odd configurations like packet shaping. Perhaps one bridge is allowing larger packets and these packets arent making it and have to be resent.
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Also what PERCENTAGE of retries are you seeing ?

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I am looking at implementing building to building wireless using Cisco 1310 bridges. This would be a backup link between the 2 buildings. The primary link is 3 T-1's. There are about 250 users connecting back here for application and internet. I am assuming that since the speed over the wireless is more than the existing T-1's that there shouldn't be a problem with latency. Am I missing anything with my thinking?
Thanks

Hey there,
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The BR1310 can get up to 54mbs (28mbs in reality due the the nature of half duplex devices such as these bridges).So even with less than ideal signal quality and strength you should have no problem getting that kind of throughput.Ideal links get in the low to mid 20s.
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Regards,
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Hello
I would like to hear from you otu there what are the best security setting for a P2P bridge outdoor link with two 1310 bridges. (with/without external Radius).
any input is very welcome
Oliver

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WPA-PSK is a pretty good solution for non-Radius implementations. PEAP, or LEAP with long nonsense passwords, are pretty good solutions for sites with AAA services. Another option is point-to-point VPN terminating on routers adjacent to your bridges.
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Hello,
Am working on getting EAP-TLS auth working between a root and non-root 1310 bridge. I've had success getting LEAP working but EAP-TLS is kicking my butt.
I have an ACS 4.1 server acting as the Radius server and the auth is failing there with the code "EAP-TLS or PEAP authentication failed during SSL handshake". I think I'm missing something related to the certs but don't know where.
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TIA,
BR

Hi Bastien,
it is actually what i did.
The point here i have 2 CA involved, with no relation between them.
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-> I have added the root CA of each CA into the ACS as well.
The point is when a computer, try to connect, it try to verify ACS server identity. And the ACS server only seems to present the certificate signed from CA1.
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I don't know how to allow the ACS to present the right signed certificated depending on the cleint that try to connect.
Then another conf I do not understand is the option:
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Once it has been lost we have to restart the Air 1310, then it re-associates. Is there a workaround or an automatism?
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