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Load balancer

Load balancer allows distributing network or application traffic through a cluster of servers, which in turn increases the speed and availability of applications and virtual machines.

Load balancer VMware NSX Edge

VMware NSX Edge (load balancer) is a solution that provides routing, Firewall, NAT, DHCP, Site to Site VPN, SSL VPN-Plus, Load Balancing, High Availability, syslog for the virtual data center. Physically implemented as a virtual machine, connected to the networks of a virtual data center and to external networks (Internet).





Service
Load balancer
Cost
from 24$ per month

Cloud constructor

Why is Load Balancing Important?

Load balancer is located between the client and the server farm that receives incoming network and application traffic and distributes it to multiple servers using different methods. By balancing application requests across multiple servers, the load balancer reduces the load on a single server and prevents one application server to become a single point of failure, thereby improving overall application availability and responsiveness.

The volumes of traffic are growing, and applications are becoming more complex. Load balancers provide the foundation for building flexible networks that meet growing demands, increasing productivity and security for many types of traffic and services, including applications.


load balancer scheme

Benefits & Features 

  • Protocols: TCP, UDP, HTTP, HTTPS
  • Algorithms: Weighted round robin, IP; hash, URI, least connection
  • SSL certificate management
  • X-header forwarding for client identification
  • L4/L7 transparent mode
  • Enhanced health check monitor
  • Resilience/sticky methods: SourceIP, MSRDP, COOKIE, SSLSESSIDID
  • One-Hand Mode
  • URL rewrite and redirection
  • Application Rules for Advanced Traffic Management
  • IPv6 support
  • Improved CLI load balancer for troubleshooting
  • Enable/Disable individual server (pool members) for service


Features & Performance

Virtual machines EDGE:

Edge (Compact)

Edge (Large)

Edge (Quad-Large)

Edge (X–Large)

vCPU

1

2

4

6

Memory

512 MB 

1 GB 

2 GB 

8 GB 

Disk Space

1 disk 584 MB+1 disk 512 MB

1 disk 584 MB +1 disk 512 MB

1 disk 584 MB + 2 disks 512 MB    

1 disk 584 MB + 1 disk 2 GB + 1 disk 512 MB    


Configuration limits tested:

Limit Edge

Number of interfaces

10

Number of firewall rules

2,000

Number of NAT rules

2,000

Number of DHCP pools

25

Number of static routes

2048

Number of load balancer pools

64

Number of load balancer virtual servers

64

Number of members per load balancer pool

32

Concurrent IPSec VPN Tunnels

512(compact), 1600(Large), 4096(Quad-Large), 6000(X–Large)

Concurrent SSL VPN Tunnels

50(compact), 100(Large), 100(Quad-Large), 1000(X–Large)


Firewall performance comparison:

Edge (Compact)

Edge (Large)

Firewall Performance (Gbps)

3

9.7

Concurrent Sessions

64,000

1,000,000

New sessions/second

8,000

50,000


VMware recommends using Edge type Large for balancing:

Edge (Large)

Edge (Quad-Large)

Edge(X–Large)

Load balancer throughput — L7 Proxy Mode (Gbps)

2.2

2.2

3

Load balancer connections / sec — L7 Proxy Mode

46,000

50,000

50,000

Load balancer concurrent connections — L7 Proxy Mode

8,000

60,000

60,000

Performance measurement was done in firewall accept mode. 
For instructions on how to configure Load Balancer in VMware Cloud Director see our Knowledge Base.


Why trust Cloud4U
15 years in cloud computing
Since 2009 the company has been successfully operating in the global market.
Reliable infrastructure
4 TIER III data centers, Enterprise level hardware and software: HP, Cisco, Juniper, NetApp, VMware, Veeam, Microsoft, etc.
SLA 99.982%
Optical ring, MetroCluster and redundancy mechanisms guarantee fault tolerance of services up to SLA 99.99%.
Transparent Billing Options
Hourly billing and pay-as-you-go allow you to pay only for the resources consumed.
Geo-Distributed Backup
Automatic backup (14 restore points) in a separate remote data center.
Flexible scalability
You can add and reduce the amount of resources without the need to contact technical support service.
24/7 technical support
If any technical issue occur, our team of experts is available round-the-clock, response time is 10 minutes.
Partner Program
Earn up to 40% of your annual contract. White Label is available.


Price Configurator

Price

Load Balancer Edge (Compact) is free of charge.
More productive virtual machines with a load balancer — starts from 3280 /month

Price for VM EDGE:

Edge (Compact)

Edge (Large)

Edge (Quad-Large)

Edge (X–Large)

vCPU

1

2

4

6

Memory

512 MB 

1 GB 

1 GB 

8 GB 

Disk

512 MB 

512 MB 

512 MB 

4.5 GB 

Price, (excl. VAT)
 Free
 		$55
 $105
 $156
If you have any questions, you can contact any manager by phone +44 20 80 89 80 01 or any other convenient way available in the section  contacts

FAQ

Frequently asked questions (FAQ)

1. What is a load balancer for?
The load balancer is used to distribute applications' traffic in the servers group so that the new task arrives at the certain server according to the type of balancing.

2. What types of balancing are available?
There are 4 types of balancing:
  • IP Hash: all requests from the certain IP-address will be forwarded to the predetermined server from the pool.
  • Round Robin: all requests are distributed among the servers in turn depending on the specified weight.
  • URI: all requests to the same address will be forwarded to 1 virtual machine. Applicable only for servers accessible via the protocol http.
  • Least Connected: new request will be sent to the least loaded server.

3. What kind of load balancer do you offer?
Cloud4U uses VMware NSX Edge (load balancer) to provide the virtual data-center with routing, Firewall, NAT, DHCP, Site-to-Site VPN, SSL VPN-Plus, Load Balancing, High Availability, syslog. Implemented as a virtual machine connected to the virtual data-center and external networks (the Internet).

4. What are the conditions for providing the load balancer?
The load balancer is available to all Cloud4U users free of charge in the EdgeGateway Compact tariff, and it is important that you have at least 2 virtual machines.

Attention! VMware recommends using the NSX EdgeGateway at Large level and above for load balancing due to the fact that EDGE Compact may not have enough RAM to store connection history under heavy loads. The EdgeGateway form factor can always be changed to a smaller or larger form factor with no configuration loss and minimal downtime (3-5 minutes). I.e. it is possible to take Compact for testing, and when it becomes insufficient - increase it to Large, then you can return it back to Compact or increase to more powerful Quad-Large or X-large.

A comparison of EdgeGateway form factors is available in our knowledge base.

7. What if I can't configure the balancer?
In this case our engineers can help, the cost is agreed upon after receiving the request.

More answers to your questions you can find in our knowledge base. If you do not find an answer ask our consultant via online-chat or send an inquiry using ticket system.

Send a request
Let our managers know if you are interested in a solution or a service. They will contacts you within 2 hours.
You also can request a free trial access here
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