Anycast IPv4

DragonVN · Created Oct 25, 2020 04:35:33

Anycast in IPv4

IPv4 routing is not designed to use Anycast optimally, but it can significantly leverage the infrastructure for some applications. Anycast usage is at this moment limited to mostly short (onerequest-one-reply packet), connectionless exchanges of information. Domain Name Service (DNS) is a very good example. The exchange with DNS only takes two User Datagram Protocol (UDP) packages: request and answer. The next request can be sent to another server without any problem. No exchange of state is necessary. Some other good uses for Anycast are Network Time Protocol (NTP), Syslog (traps sent by devices to a management system), Rendezvous Point (RP) information in Protocol Independent Multicast Sparse Mode (PIM-SM) and export of flow information.
Transmission Control Protocol (TCP) needs complicated state-change mechanisms to make Anycast work. TCP was not designed to handle these state-change mechanisms, and is therefore, less suitable for use of Anycast.

Refer to: https://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.116.6367&rep=rep1&type=pdf

Hope this help.

jason_hu · Created Oct 25, 2020 02:11:36

Hello,
It's nice to meet you in the community.
We're working on your problem. Please be patient.

jason_hu · Created Oct 25, 2020 03:56:59

Hello,

The anycast-rp command configures an anycast-rendezvous point (Anycast-RP) and displays the Anycast-RP view or displays an existing Anycast-RP view.

https://support.huawei.com/hedex/hdx.do?docid=EDOC1100109721&id=EN-US_CLIREF_0172380226&lang=en

Hope to help you!

DragonVN · Created Oct 25, 2020 04:35:33

Anycast in IPv4

IPv4 routing is not designed to use Anycast optimally, but it can significantly leverage the infrastructure for some applications. Anycast usage is at this moment limited to mostly short (onerequest-one-reply packet), connectionless exchanges of information. Domain Name Service (DNS) is a very good example. The exchange with DNS only takes two User Datagram Protocol (UDP) packages: request and answer. The next request can be sent to another server without any problem. No exchange of state is necessary. Some other good uses for Anycast are Network Time Protocol (NTP), Syslog (traps sent by devices to a management system), Rendezvous Point (RP) information in Protocol Independent Multicast Sparse Mode (PIM-SM) and export of flow information.
Transmission Control Protocol (TCP) needs complicated state-change mechanisms to make Anycast work. TCP was not designed to handle these state-change mechanisms, and is therefore, less suitable for use of Anycast.

Refer to: https://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.116.6367&rep=rep1&type=pdf

Hope this help.

Unicef · Created Jun 12, 2021 15:26:08

GOOD

andersoncf1 · Created Jun 12, 2021 16:07:19

Good answer

S_Noch · Created Aug 12, 2021 12:10:24

Good

Anycast IPv4

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