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These are pre-allocated by the Eucalyptus cloud and can be reassigned to a running instance. Security – TCP/IP security groups share a common set of firewall rules. This is a mechanism to firewall off an instance using IP address and port block/allow functionality. Instances are isolated at TCP/IP layer 2.
Peering can be achieved by connecting a route between two VPCs on the same account or two VPCs on different accounts in the same region. VPC peering is a one-to-one connection, but users can connect to more than one VPC at a time. [9] To achieve a one-to-many connection between VPCs, you can deploy a transit gateway (TGW).
Virtual private network (VPN) is a network architecture for virtually extending a private network (i.e. any computer network which is not the public Internet) across one or multiple other networks which are either untrusted (as they are not controlled by the entity aiming to implement the VPN) or need to be isolated (thus making the lower network invisible or not directly usable).
Virtual eXtensible LAN (VXLAN) is a network virtualization technology that uses a VLAN-like encapsulation technique to encapsulate OSI layer 2 Ethernet frames within layer 4 UDP datagrams, using 4789 as the default IANA-assigned destination UDP port number, [1] although many implementations that predate the IANA assignment use port 8472.
Virtual Private LAN Service (VPLS) is a way to provide Ethernet-based multipoint to multipoint communication over IP or MPLS networks. It allows geographically dispersed sites to share an Ethernet broadcast domain by connecting sites through pseudowires.
The first firewall (also called the "front-end" or "perimeter" [5] firewall) must be configured to allow traffic destined to the DMZ only. The second firewall (also called "back-end" or "internal" firewall) only allows traffic to the DMZ from the internal network. This setup is considered [4] more secure since two devices would need to be ...
This article lists protocols, categorized by the nearest layer in the Open Systems Interconnection model.This list is not exclusive to only the OSI protocol family.Many of these protocols are originally based on the Internet Protocol Suite (TCP/IP) and other models and they often do not fit neatly into OSI layers.
The election process is made orderly through the use of skew time, derived from a router's priority, and used to reduce the chance of the thundering herd problem occurring during the election. The skew time is given by the formula (256 − Priority) / 256 (expressed in milliseconds). Secondary/standby router utilization can be improved by load ...