Synonyms for anycast or Related words with anycast

multicast              vpls              subnetwork              arp              rbridge              asbr              mdns              igmp              slaac              bgp              subnet              unicast              supernode              vrrp              nats              multicasting              nsap              reachability              pseudowire              subnets              nve              autoconfiguration              igp              hostnames              pseudowires              evpn              forwarder              vrfs              unicasting              lsa              vrf              vmac              mvpn              vtep              beb              isid              vlans              multihoming              middlebox              somecast              vxlan              lsp              notvia              multihomed              rreq              dvipa              tors              spbm              ldp              ip             



Examples of "anycast"
In 2003, DALnet put up their first anycast servers under the name "The IX Concept", and made irc.dal.net resolve to the anycast IP. Since then, most new client servers linked are anycast.
Authentication of anycast transmissions may solve this problem.
Anycast is normally highly reliable, as it can provide automatic failover. Anycast applications typically feature external "heartbeat" monitoring of the server's function, and withdraw the route announcement if the server fails. In some cases this is done by the actual servers announcing the anycast prefix to the router over OSPF or another IGP. If the servers die, the router will automatically withdraw the announcement.
The Anycast can record TX (also referred to as 'PGM') and isolated feeds to hard disk if required. One of the known hard-disks to work with the Anycast is the Maxtor One-Touch III (350gb & 500gb).
The scope of an anycast address is defined identically to that of a unicast address.
IP addresses are classified into several classes of operational characteristics: unicast, multicast, anycast and broadcast addressing.
Like broadcast and multicast, anycast is a one-to-many routing topology. However, the data stream is not transmitted to all receivers, just the one which the router decides is logically closest in the network. Anycast address is an inherent feature of only IPv6. In IPv4, anycast addressing implementations typically operate using the shortest-path metric of BGP routing and do not take into account congestion or other attributes of the path. Anycast methods are useful for global load balancing and are commonly used in distributed DNS systems.
The effectiveness of this technique to divert attacks is questionable, however, because unicast addresses (used for maintenance) can be easy to obtain, at least on IPv6. RFC 2373 defines that "An anycast address must not be used as the source address of an IPv6 packet." Therefore, pinging an anycast address will return the unicast address of the closest node, since the reply must come from a unicast address. An attacker can then attack individual nodes from any location, bypassing anycast addressing methods. This same method works on some, but not all, IPv4 anycast addresses. RFC 2373 also restricted anycast IPv6 addresses to routers only. However, both of these restrictions were lifted in RFC 4291.
providing two recursive nameserver addresses for public use, mapped to the nearest operational server location by anycast routing.
OpenDNS provides the following recursive nameserver addresses for public use, mapped to the nearest operational server location by anycast routing.
A host is required to join a Solicited-Node multicast group for each of its configured unicast or anycast addresses.
Anycast methodologies on the Internet may be exploited to distribute DDoS attacks and reduce their effectiveness: As traffic is routed to the closest node, a process over which the attacker has no control, the DDoS traffic flow will be distributed amongst the closest nodes. Thus, not all nodes might be affected. This may be a reason to deploy anycast addressing.
Content delivery networks may use anycast for actual HTTP connections to their distribution centers, or for DNS. Because most HTTP connections to such networks request static content such as images and style sheets, they are generally short-lived and stateless across subsequent TCP sessions. The general stability of routes and statelessness of connections makes anycast suitable for this application, even though it uses TCP.
The modern trend is to use anycast addressing and routing to provide resilience and load balancing across a wide geographic area. For example, the "j.root-servers.net" server, maintained by VeriSign, is represented by 104 () individual server systems located around the world, which can be queried using anycast addressing.
Solicited-node multicast addresses are computed as a function of a node's unicast or anycast addresses. A solicited-node multicast address is created by copying the last 24 bits of a unicast or anycast address to the last 24 bits of the multicast address.
IPv6 addresses are classified by the primary addressing and routing methodologies common in networking: unicast addressing, anycast addressing, and multicast addressing.
In December 2013, DNSimple migrated all the customers from Unicast to a new Anycast network composed of 5 points of presence.
Among others, members include DNS Anycast operators providing instances of E, I and L root servers and over 100 gTLDs/ccTLDs
MaxCDN hosts Nginx servers in Europe, North America and Asia; MaxCDN utilizes Anycast stateless routing for one-to-nearest content delivery over multiple 10 Gbit/s connections.
Nearly all Internet root nameservers are implemented as clusters of hosts using anycast addressing. 12 of the 13 root servers A-M exist in multiple locations, with 11 on multiple continents. (Root server H exists in two U.S. locations. Root server B exists in a single location in the Los Angeles Area.) The 12 servers with multiple locations use anycast address announcements to provide a decentralized service. This has accelerated the deployment of physical (rather than logical) root servers outside the United States. RFC 3258 documents the use of anycast addressing to provide authoritative DNS services. Many commercial DNS providers have switched to an IP anycast environment to increase query performance, redundancy, and to implement load balancing.