openstack/openstack-manuals
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Merge "[Networking-guide] Few sentence corrections"

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Jenkins 2016-02-26 16:21:29 +00:00 committed by Gerrit Code Review
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doc/networking-guide/source/intro-networking-components.rst
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@ -7,7 +7,7 @@ Switches
Switches are Multi-Input Multi-Output (MIMO) devices that enable packets Switches are Multi-Input Multi-Output (MIMO) devices that enable packets
to travel from one node to another. Switches connect hosts that belong to travel from one node to another. Switches connect hosts that belong
to the same layer-2 network together. Switches enable forwarding of the to the same layer-2 network. Switches enable forwarding of the
packet received on one port (input) to another port (output) so that they packet received on one port (input) to another port (output) so that they
reach the desired destination node. Switches operate at layer-2 in the reach the desired destination node. Switches operate at layer-2 in the
networking model. They forward the traffic based on the destination networking model. They forward the traffic based on the destination
@ -26,8 +26,8 @@ Firewalls
~~~~~~~~~ ~~~~~~~~~
Firewalls are used to regulate traffic to and from a host or a network. Firewalls are used to regulate traffic to and from a host or a network.
Firewalls can either be a specialized device connecting two networks or can A firewall can be either a specialized device connecting two networks or
be a software-based filtering mechanism implemented on an operating system. a software-based filtering mechanism implemented on an operating system.
Firewalls are used to restrict traffic to a host based on the rules Firewalls are used to restrict traffic to a host based on the rules
defined on the host. They can filter packets based on several criteria such as defined on the host. They can filter packets based on several criteria such as
source IP address, destination IP address, port numbers, connection state, source IP address, destination IP address, port numbers, connection state,
@ -38,7 +38,7 @@ through ``iptables``.
Load balancers Load balancers
~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~
A load balancer can be a software-based or a hardware-based device that allows Load balancers can be software-based or hardware-based devices that allow
traffic to evenly be distributed across several servers. By distributing the traffic to evenly be distributed across several servers. By distributing the
traffic across multiple servers, it avoids overload of a single server thereby traffic across multiple servers, it avoids overload of a single server thereby
preventing a single point of failure in the product. This further improves the preventing a single point of failure in the product. This further improves the