Load balancing on a Redundant Bridging

Hi to all,
i need to configure a wireless link using two bridge on a single side of the link(4 bridge total),i want to aggregate wireless link with Redundant Bridging but i don't know if the bandwidth is 54mbit or is double?!?
There is a hint or a method to double the bandwidth of a link using aironet bridge?(wireless-g)
Thanks and best regards,
Carlo S.

You can take a look at this thread:
http://forums.cisco.com/eforum/servlet/NetProf?page=netprof&forum=Wireless%20-%20Mobility&topic=Getting%20Started%20with%20Wireless&CommCmd=MB%3Fcmd%3Ddisplay_location%26location%3D.2cbfa834
But like I said, if you require more bandwidth per link you need to look at another vendor.

Similar Messages

WAN Load-Balancing and multi VLAN design

Hello,
I need some help to define the design of a specifi LAN-WAN network.
1) There are 2 independant WAN entries (they have their own ISP-managed router)
2) I need to load-balanced the requests over the 2 WAN
3) If possible, the load-balancer must be redundant (GLBP ?)
4) On the LAN itself, there must be 15 different VLAN
5) We also need a DHCP solution (also redundant if possible) to provide IP to these VLAN, with unique gateway (the load-balancer)
What do I need to implement this configuration ?
And is it possible to configure with as much GUI as possible ?
Thanks in advance for your help.

Dear Mike,
Thank you and welcome to the Small Business Support Community.
It is possible to configure load balancing with NAT, however in this case, remote internet servers will potentially see sessions from remote hosts behind the SRP541W coming from different source IP addresses (the WAN IP addresses), causing the sessions to be reset unexpectedly.
The Policy Routing setting you setup is exactly what I would do in your case.
I hope these answer your question and please do not hesitate to reach me back if there is anything else I may assist you with.
Kind regards,
Jeffrey Rodriguez S. .:|:.:|:.
Cisco Customer Support Engineer
*Please rate the Post so other will know when an answer has been found.

Windows Server 2012 R2 - ADFS/Windows Network Load Balancing Converging Issue

Hello,
My name is Brandon. We have started upgrading our servers to Windows Server 2012 R2. We have some powerful servers for running ESXI 5.5 as the OS with the Guest Operating Systems as Windows Server 2012 R2. As far of our migrations/upgrades we have configured
ADFS 2012 R2 into a Server Farm with Windows Network Load Balancing to add redundancy in the event a server goes down.
I have been having issues with a Node with the Cluster getting stuck in the Status of Converging. The only way I have been able to get it back up is to restart the virtual server completely and it is temporary. When I first configure the Cluster the two
virtual servers get added to the Node with no problems and fully converge. However, after some time a node will end up in Converging and this takes Authentication for ADFS down as the nodes can not be contacted over Port 443.
Error: Host: server.domain.com Unable to connect to "server name"
System
Provider
[ Name]
Microsoft-Windows-NLB
[ Guid]
{F22AF71F-C4C3-425D-9653-B2F47B85DD30}
EventID
21
I have tried using 1 & 2 Virtual NICs on the machines and still end up with communication issues. Could someone assist me with why I am having this issue? This is not an issue with a firewall. If it was a firewall it would never communicate the first
time. Has anyone had experience with a similar configuration and how were you able to make it work?
Below is my configuration.
Static ARP Entry for Cluster IP Address has been added to our Layer 3 switch.
Physical Server 1:
ESXI 5.5 HOST
1 NIC CONNECTED (shared with virtual guest)
IP ADDRESS: 192.168.0.5
SUBNET: 255.255.255.0
DGW: 192.168.0.1
Virtual Server 1 (Guest OS)
Physical Server 2:
ESXI 5.5 HOST
1 NIC CONNECTED (shared with virtual guest)
IP ADDRESS: 192.168.0.6
SUBNET: 255.255.255.0
DGW: 192.168.0.1
Virtual Server 2 (Guest OS)
Virtual Servers
Virtual Server 1
MS SERVER 2012 R2 (VIRTUAL)
NLB NODE 2
VIRTUAL NETWORK ADAPTERS
VNIC1 IP ADDRESS 192.168.0.10
SUBNET: 255.255.255.0
DGW: 192.168.0.1
VNIC 2 (NLB)
IP ADDRESS: 192.168.0.11
SUBNET: 255.255.255.0
Virtual Server 2
MS SERVER 2012 R2 (VIRTUAL)
NLB NODE 2
VIRTUAL NETWORK ADAPTERS
VNIC1
IP ADDRESS 192.168.0.20
SUBNET: 255.255.255.0
DGW: 192.168.0.1
VNIC 2 (NLB)
IP ADDRESS: 192.168.0.21
SUBNET: 255.255.255.0
Cluster Configuration/Properties
CLUSTER PROPERTIES CLUSTER IP: 192.168.0.30
CLUSTER SUBNET: 255.255.255.0
FULL INTERNET NAME: FS.DOMAIN.COM
CLUSTER OPERATION MODE: MULTICAST
PORT RULES:
CLUSTER IP ADDRESS
START
END
PROTOCAL
MODE
PRIORITY
LOAD
AFFINITY
ALL
80
80
BOTH
MULTIPLE
EQUAL
NONE
ALL
443
443
BOTH
MULTIPLE
EQUAL
NONE
CLUSTER NODES:
1.) SERVER1.DOMAIN.COM
a. IP: 192.168.0.11
2.) SERVER2.DOMAIN.COM
a. IP: 192.168.0.21

Hi,
According to your description, my understanding is that：2 ESXI 5.5 physical devices (192.168.0.5 and 192.168.0.6), each of them has a virtual WS 2012 R2(192.168.0.10 and 192.168.0.20). Cluster the 2 virtual servers successfully, but they corrupt with event
ID 21, and a restart of virtual device will resolve this problem temporarily.
Event ID 21 means that NLB failed to converge due to inconsistencies in the port rules between this host and cluster host. This will occur if the number of port rules or the type of port rules are different between hosts.
Ensure that all NLB hosts have identical port rules. Detailed steps you may reference:
Event ID 21 — NLB Port Rules Configuration
https://technet.microsoft.com/en-us/library/dd364034%28v=ws.10%29.aspx?f=255&MSPPError=-2147217396
Best Regards,
Eve Wang
Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Support, contact
[email protected]

Windows Server 2012 R2 - Windows Network Load Balancing Converging Issue

Hello,
My name is Brandon. We have started upgrading our servers to Windows Server 2012 R2. We have some powerful servers for running ESXI 5.5 as the OS with the Guest Operating Systems as Windows Server 2012 R2. As far of our migrations/upgrades we have configured
ADFS 2012 R2 into a Server Farm with Windows Network Load Balancing to add redundancy in the event a server goes down.
I have been having issues with a Node with the Cluster getting stuck in the Status of Converging. The only way I have been able to get it back up is to restart the virtual server completely and it is temporary. When I first configure the Cluster the two
virtual servers get added to the Node with no problems and fully converge. However, after some time a node will end up in Converging and this takes Authentication for ADFS down as the nodes can not be contacted over Port 443.
Error: Host: server.domain.com Unable to connect to "server name"
System
Provider
Name]
Microsoft-Windows-NLB
Guid]
{F22AF71F-C4C3-425D-9653-B2F47B85DD30}
EventID
21
I have tried using 1 & 2 Virtual NICs on the machines and still receive this error even if only 1 VNIC is assigned to the virtual machine. Could someone assist me with why I am having this issue? Has anyone had experience with a similar configuration
and how were you able to make it work?
Below is my configuration.
Static ARP Entry for Cluster IP Address has been added to our Layer 3 switch.
Physical Server 1:
ESXI 5.5 HOST
1 NIC CONNECTED (shared with virtual guest)
IP ADDRESS: 192.168.0.5
SUBNET: 255.255.255.0
DGW: 192.168.0.1
Virtual Server 1
Physical Server 2:
ESXI 5.5 HOST
1 NIC CONNECTED (shared with virtual guest)
IP ADDRESS: 192.168.0.6
SUBNET: 255.255.255.0
DGW: 192.168.0.1
Virtual Server 2
Virtual Servers
Virtual Server 1
MS SERVER 2012 R2 (VIRTUAL)
NLB NODE
2 – VIRTUAL NETWORK ADAPTERS
VNIC1
IP ADDRESS 192.168.0.10
SUBNET: 255.255.255.0
DGW: 192.168.0.1
VNIC 2 (NLB)
IP ADDRESS: 192.168.0.11
SUBNET: 255.255.255.0
Virtual Server 2
MS SERVER 2012 R2 (VIRTUAL)
NLB NODE
2 – VIRTUAL NETWORK ADAPTERS
VNIC1
IP ADDRESS 192.168.0.20
SUBNET: 255.255.255.0
DGW: 192.168.0.1
VNIC 2 (NLB)
IP ADDRESS: 192.168.0.21
SUBNET: 255.255.255.0
Cluster Configuration/Properties
CLUSTER PROPERTIES
CLUSTER IP: 192.168.0.30
CLUSTER SUBNET: 255.255.255.0
FULL INTERNET NAME: FS.DOMAIN.COM
CLUSTER OPERATION MODE: MULTICAST
PORT RULES:
CLUSTER IP ADDRESS  START END PROTOCAL MODE   PRIORITY LOAD  AFFINITY
ALL    80 80 BOTH  MULTIPLE  ..  EQUAL  NONE
ALL    443 443 BOTH  MULTIPLE  ..  EQUAL  NONE
CLUSTER NODES:
1.) SERVER1.DOMAIN.COM
a. IP: 192.168.0.11
2.) SERVER2.DOMAIN.COM
a. IP: 192.168.0.21

Thank you for your response. It took me a while to figure it out, but the whole issue was related to the type of Virtual Network Adapter I was selecting.
I changed the network adapter from E1000 to VMXNET 3 and have not had a single error in the event logs or Windows NLB.
I read somewhere that VMXNET 3 is preferred for Windows Server 2012 R2.
https://communities.vmware.com/thread/433792
Leyuka       May 23, 2013 6:14 AM
"Just a help for everyone with this problem :
After 10 days of research for our virtual datacenter behind a vcloud as iias , i found a solution .
I only run windows 2012 server .
Install vmware tools , remove e1000 network card after a vm stop, add a card same vswitch etc BUT with a vmxnet3 TYPE . DONT USE DEFAULT CARD
Start and enjoy this solution . E1000 and E1000e are just unstable in windows8 / windows 2012 , the network card reset randomly with or without heavy IO. No log in windows , and as a vcloud user i don"t have esxi logs (damn i don't like cloud) and provider
don"t know why ..."

Mysql cluster load balancing

Hi there ! Could somebody guide me a bit on how to load balance Mysql servers ? Actually we can do read-only querys but on other operations the Mysql client we use says that "can't lock file". I think the balancer send that stream to one Mysql server but then when It goes back it doesn't know what is the correct place to send it. Thanks. We are doing it with a CSS, and we have two Mysql servers to process the queries.

There are a couple of ways of scaling out using Mysql clusters and load balancing. The most common is to create a pool of read only servers, and then on the initiator split ro and rw transactions to seperate vips in your load balancer.
For redundant RW transactions you can either do a Hot Hot setup on your mysql servers, or do a publisher subscriber, where you have a hard failover. In that case you need to configure your loadbalancers to only use the publisher, and to only use the subscriber if the publisher is dead.
--Colin

Guest N+1 redundancy & load balancing in seperate data centers

I need assistance in aquiring documentation to setup N+1 redundancy & load balancing between two seperate guest anchor controllers installed in seperate data centers. Can you explaing how it should be setup or point me in the right direction for documentation? If you can't point me in the right direction to aquire documentation; can you answer the following questions?
1) How do I setup my mobility groups on my guest anchor controllers installed in the DMZ? Should both guest anchor's be in the same mobility group.
2) Do both guest anchors share the same virtual IP or do they need to be seperate (DMZ01 - 1.1.1.1 / DMZ02 - 2.2.2.2)? I think seperate!
3) Are there any configuration parameters on the guest anchors for load balancing?
4) Do either on of the guest anchors need to be setup as a master controller? I'm not sure?
5) Are there any configuration parameters on the foreign controllers for load balancing?
6) How do I setup my foreign controllers? Should both guest controllers be added to the mobility group on the foreigh controller? I would think both of them would be added to the foreign controller mobility group.
7) Should both guest anchors be added as an anchor on the WLAN? I would think both controllers would need to be added as anchors under the WLAN!
8) Am I missing anything here? This is how I think it should logically work?
Thanks,
Gordon

I need to elaborate on my questions:
1) Do both of my guest DMZ anchors need to be in a seperate mobility group on their own or can the guest anchors be in completely seperate mobility groups? All 100 + foreign controllers are in seperate mobility groups.
I) Example #1: Guest anchor number 1 (Mobility group: DMZ) / Guest anchor number 2 (Mobility group: DMZ)
II) Example #2: Guest anchor number 1 (Mobility group: DMZ01) / Guest anchor number 2 (Mobility group: DMZ02)
2) Do both guest anchor controllers have to be configured with seperate virtual IP's or do they share the same address?
I) Follow up to this question: I want to register the DMZ controllers with our DNS servers so that my clients receive a name when authenticating through my customized webauth. I am currently using 1.1.1.1 as the virtual address and I'm pretty sure this is the address I need to register with my external DNS server. My question is this. Does the address I use for the virtual interface matter? 1.1.1.1 is not a valid address with my network. Do I need to assign a valid address registered with my network if I'm going to add this address to my external DNS servers?
3) No change to my original question.
4) No change to my original question.
5) No change to my original question. I have run into Cisco documentation that mentions guest anchor load balancing, but the documentation is very vague. I'd love to be able to load balance as the network group wants to limit my guest traffic to the internet. I could double my pipe if I could load balance the guest anchors.
6) No change to my original question, but the answer to question one is key to the setup of my foreign controllers.
7) Elaboration: Should both guest controllers be added as an anchor under the WLAN on the foreign controllers? I would think both of them would be added.
8) No change:
9) Should my secondary guest controller be added as an anchor on the WLAN of the primary guest DMZ controller and visa versa?
Can my Cisco expert answer this or do I need to open a TAC case?
Thanks,
Gordon Shelhon
SR. Wireless Services Engineer
Company: Not specified

2 ISP load balancing and redundancy

Hello!!
Our small company has about 40 branches spreaded within city. Branches are connected by optic wire supplied by our ISP. So in ISP our branches are located in one VLAN. From every branch we created VPN tunnel to our server room in central office. Central office is like a cetner point. If optic wire fails to central office, there would no VPN tunnels and no network to all branches. Moreover, all the traffice goes through central office.
Now we decided to pave one more optic line to our central office. And that will increase bandwidth and redundancy.
Private network topology: There are no default gateways and ip-addresses. For examle, at first branch I will plug computer directly into media converter and at the second branch plug another computer to the media converter. After that this two computers became in one network. And can assign any ip addresses to them.
What I have: our firewall do enough work, don't want to overload it. But we have some free ports in our new cisco 3750. The question is how to do load balancing and redundanccy? Can it do load balancing according to traffic? And how load balance incoming traffic? For example, connection was established from branche's router, how this router will choose through which line make connection? By the way, at all branches we use noisy cisco
3700 series routers.

Sorry for upping 1 year old threat.
We talked to our Network Provider. They said "these two cables are coming from two different places, so there is no way to use etherchannel. You must use active-standby solution."
Relying on STP we just put two cables into 3750 stack. But with default STP settings, connection was very unstable, many packet losses and disconnections. So we found easy solution with "flex links", making one interface backup of the other. And only now I recognized that this is not a failover solution. Because, if network beyond media converter will down, link from media converter to switch would still up.
What could I do to make our L2 WAN redundant? Are there any additional STP settings.

PIX Redundant Internet Line and Load balancing

I would like to find out if it's possible to configure my Cisco PIX 525 to use a secondary internet line from a different provider and perform load balancing. I'm using PIX Version 6.3(1)

PIX version 6.3 does not support Redundancy and load balancing. but PIX/ ASA with version 7.0 supports Redundancy.

Two 2911 routers and 3560 switches (load balancing and redundancy)

Good day, Sir !
I have a model with hierarchical model. Two routers 2911 and two core switches 3560, two providers.
I want to design redundancy scheme. Can you advice me how is better to do it ? here you can find image with topology, can you say is it good idea to connect with devices in this way ?
Hope on you help ! Thank you !!!

Hi,
If you want to configure redundancy in your network on LAN you can use HSRP and from the WAN side depending on the connection with the provider you can either use BGP or any IGP.
If you want to have load balancing as well with redundancy you can define differnt HSRP group for different vlan and on the wan with BGP you can use multipath option or with IGP you can manipulate the route matric.
Thanks & Regards
Sandeep

Wireless Bridge Load Balancing

Is it possible to configure two 1300 series bridges at one location, each handling a bridge link to another location to BOTH backup and load balance for each other should one of them fail?

Hi,
You can achieve this with quiet a few options -
1) Routing - You can configure the two routes with same AD to achieve Load Balancing and failover. Care should be taken be cause connectivity between router and bridge would be ethernet and if the radio link fails router would never come to know about this failure and will keep sending the traffic on the failed link. Usee SAA probes with ICMP to track the link failure.
2) You can configure etherchannel between two switches and achieve load balancing + failover.
>> Sushil

Firewall Load Balance using bridged mode ACE

Dear Folks,
I 'd like to load balance 2 ASA using 3 ACE [ Inside,outside,dmz network zone]
I 've seen sample configuration, all of them are running the ACE in the route mode, and asa are running in route mode
Would it be possible to run the ACE in the bridge Mode, because the ip subneted problem, We don't have enough to split,,
by the way if possible,All server that install behind ACE, what is default gateway should Server Point to [ in our case we have 2 independent firewall ] should I create the VIP for both firewall ? or should I just simply set the server's gateway to BVI interface, ?
Please Help Thanks

Thank you very much Gilles,
You 're the man. ;-)
Another question in my case I try to load balance 3 interface firewall [inside,outside,dmz] in order to make the packet return the same firewall it has passed earlier,
What kind of hashing technique do I need to use and Do i need to use mac sticky command ???
I tried to find some configuration sample from cisco website , but i only found with only 2 interface with ACE running source hash and destination hash in each ends,
Thank you very much

Redundant and load balance of Final Cut Server

Greeting All,
Anyone has good start of redundant and load balance solution for Final Cut Server? Please advise!!
Thanks,
Spin

Found this and seems to have worked...
http://support.apple.com/kb/HT3836
Just ran those two commands and then restarted the web service and now I get the page.

Resources for designing redundancy and load balancing among data centers

Hello all,
I'm looking for resources for designing redundancy and load balancing between two physically separate data centers. I'm looking for some "best practice" links, tips, or recommendations. Any suggestions are appreciated!
Thanks.

I think that we can do per packet load balancing by using CEF.
Please go to the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/fswtch_c/swprt1/xcfcefc.htm#xtocid5
Also, you may need local director or distributed director. What resource/application is availalbe in the data centre? (e.g. http server, ftp server, TN3270 server, and so on)

Load Balance & redundancy for internet from 2 different sites?

Hi,
we have 2 core sites where our servers are situated. Both sites are connected via a ptp link.
All of our clients/sites reach these two sites via our MPLS network and they never route via the ptp link which is solely used between the two core sites.
One of the sites has an ASA which goes out to our internet. We are thinking of replicating this on our other site.
How would we go about load balancing the internet connection ie 50% go out on site A & 50% go out on site B?
And if site A goes down, everything goes out via site B and vice versa?
Diagram attached....
Thank you,
Louis

Hi Louis, you could set default routes on the ASA's with tracking, and use ospf downstream to inject the default route in to the network with default information originate - this will only advertise out a default route if it has it in the routing table. With SLA you can track internet reachability by IP SLA echo to something like 8.8.8.8. Both sides can advertise this in to the network, if one goes then there is one left. Just be mindful of the policies and NAT required, you will have to duplicate the rules on the ASA's. With the NAT you have to ensure, that outgoing traffic comes back in the same path it left so it doesn't break connections.

How does Tuxedo 10.0 load balance across the BRIDGE?

Is the load balancing round robin or does work done factored in?

Yes and no. In all honesty, see if this white paper helps answer your question: http://www.oracle.com/technetwork/middleware/tuxedo/overview/ld-balc-in-oracle-tux-atmi-apps-1721269.pdf
Regards,
Todd Little
Oracle Tuxedo Chief Architect

Load balancing on a Redundant Bridging

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