Sharing, several deployment modes for load balancing

Alteon is used in the use of dual-machine master and Standby mode of work, the corresponding group network according to different ways are divided into a direct-connected group network, single-arm network of two pairs of networks and triangular transmission network, the following in turn, detailed introduction.

1.1Direct Connect Networking

The network topology diagram is as follows: ( Standard Architecture )

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the entire network consists of a firewall, a routing switch, a two-tier switch, and two load-balanced switches. The routing switch connects to the DMZ area of the firewall , and the load-balancing switch connects to the routing switch through a two-layer switch. the Alteon switch divides two VLANs, connecting servers and switches, respectively.

two alteon switch works in the main standby mode, usually one device is active state, the other is backup state, when the active device fails, The backup device changes to the active state.

1.2Double- arm Networking

The following network is called the two-arm network, is currently using a more than the network method, logically, it belongs to the routing method. This kind of network can realize the complete primary and standby switching. Single arm, using a physical connection, with two arms, using 2 physical links, respectively, connected to the intranet server and the external network firewall or router.

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in this networking mode, if you have a two-level switch-level connection, the spanning tree is enabled on the core LAN switch and on the LAN switch ( STP) protocol to eliminate loops. We recommend that the port connected to the Alteon be set to port Fast, not to the spanning tree calculation. the Submac feature needs to be turned on on the load Balancer .

Typically, the server's gateway needs an intranet floating gateway to the load Balancer device.

1.3one-arm networking

The following networking is called a single-arm network. This kind of network can realize the complete primary and standby switching. Typically, the server's gateway needs a floating gateway pointing to the load-balanced device. Alteon equipment is generally less used in this kind of networking.

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in this networking mode, if you have a two-level switch-level connection, the spanning tree is enabled on the core LAN switch and on the LAN switch ( STP) protocol to eliminate loops. When using a single arm, if the intranet and the extranet are not in the same network segment, you can use the 802.1Q VLAN Trunk for configuration, see VLAN configuration. Typically, the server's gateway needs an intranet floating gateway to the load Balancer device. We recommend that the port connected to the Alteon be set to port Fast, not to the spanning tree calculation. the Submac feature needs to be turned on on the load Balancer .

to differentiate between the terms of the load balancer for other manufacturers. We will Alteon virtual out of the address of the server gateway as the VIR, and the switch is the same as the floating IP, virtual IP to provide business services to the VR Called VSR.

Sharing, several deployment modes for load balancing