Multi-Stage Transparent Server Load Balancing
draft-matsuhira-mslb-09
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Naoki Matsuhira
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2020-12-14
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Network Working Group N. Matsuhira
Internet-Draft Fujitsu Limited
Intended status: Informational December 15, 2020
Expires: June 18, 2021
Multi-Stage Transparent Server Load Balancing
draft-matsuhira-mslb-09
Abstract
This document specifies Multi-Stage Transparent Server Load Balancing
(MSLB) specification. MSLB make server load balancing over Layer3
network without packet header change at client and server. MSLB make
server load balancing with any protocol and protocol with encription
such as IPsec ESP, SSL/TLS.
Requirements Language
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in RFC 2119 [RFC2119].
Status of This Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet-
Drafts is at https://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress."
This Internet-Draft will expire on June 18, 2021.
Copyright Notice
Copyright (c) 2020 IETF Trust and the persons identified as the
document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
(https://trustee.ietf.org/license-info) in effect on the date of
Matsuhira Expires June 18, 2021 [Page 1]
Internet-Draft MSLB December 2020
publication of this document. Please review these documents
carefully, as they describe your rights and restrictions with respect
to this document. Code Components extracted from this document must
include Simplified BSD License text as described in Section 4.e of
the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Traditional load balancing method . . . . . . . . . . . . . . 2
3. Architecture of MSLB . . . . . . . . . . . . . . . . . . . . 3
4. configuration . . . . . . . . . . . . . . . . . . . . . . . . 4
4.1. basic configuration . . . . . . . . . . . . . . . . . . . 4
4.2. one arm configuration . . . . . . . . . . . . . . . . . . 5
5. mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
5.1. address translation mode . . . . . . . . . . . . . . . . 6
5.2. encapsulation mode . . . . . . . . . . . . . . . . . . . 9
6. Ingress filtering environment . . . . . . . . . . . . . . . . 12
7. Characteristic . . . . . . . . . . . . . . . . . . . . . . . 13
8. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 14
9. Security Considerations . . . . . . . . . . . . . . . . . . . 14
10. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 14
11. Normative References . . . . . . . . . . . . . . . . . . . . 14
Author's Address . . . . . . . . . . . . . . . . . . . . . . . . 15
1. Introduction
This document specifies Multi-Stage Transparent Server Load Balancing
(MSLB) specification.
MSLB provide server load balancing function over Layer3 network
without packet header change at client and server. MSLB work with
any protocol and protocol with payload encription such as IPsec ESP,
SSL/TLS.
2. Traditional load balancing method
There are several load balancing technique, such as round robin DNS,
IP Anycasting [RFC1546] and destination address translation.
Figure 1 shows load balancing system with typical server load
balancer with destination address translation technique.
Matsuhira Expires June 18, 2021 [Page 2]
Internet-Draft MSLB December 2020
+---------+ +--------+
| +---+ Server |
+---------+ +----------+ | | +--------+
| | | | | | :
+--------+ | | | Server | | | +--------+
| Client +---+ Network +---+ Load +---+ Network +---+ Server |
+--------+ | | | Balancer | | | +--------+
| | | | | | :
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