Madcap Multicast Scope Nesting State Option

By Kermode, R.

Book Id: WPLBN0000694404
Format Type: PDF eBook:
File Size: 0.1 MB
Reproduction Date: 2005

Title:	Madcap Multicast Scope Nesting State Option
Author:	Kermode, R.
Volume:
Language:	English
Subject:	Arts, Humanities, Classical education
Collections:	Technical eBooks and Manuals Collection, Technical eBooks Collection
Historic Publication Date:
Publisher:


Citation APA MLA Chicago Kermode, B. R. (n.d.). Madcap Multicast Scope Nesting State Option. Retrieved from https://www.gutenberg.cc/

Description
Technical Reference Publication

Excerpt
Introduction: The Multicast Address Dynamic Client Allocation Protocol (MADCAP) [RFC2730] affords client applications the ability to request multicast address allocation services from multicast address allocation servers. As part of the Multicast Address Allocation Architecture [RFC2908], MADCAP gives clients the ability to reserve, request, and extend leases on multicast addresses. A new MADCAP option, the Multicast Scope Nesting State option is proposed to allow clients to learn not only which scopes exist via the existing Multicast Scope List option, but how these scopes nest inside each other. This new option will also afford clients the ability to make better scope selections for a given session and also to construct hierarchies of administratively scoped zones. These hierarchies may then be used to perform expanding scope searches instead of the expanding ring or increasing-TTL searches. Expanding scope searches do not suffer from the Split-Horizon Effect present in expanding ring searches, and therefore both simplify protocol design and provide better localization.

Table of Contents
Table of Contents 1. Introduction. . . . . . . . . . . . . . . . . . . . . 2 1.1 Time-To-Live (TTL) Scoping Split Horizon Effect. 2 1.2 Eliminating the Split Horizon Effect with Administrative Scoping . . . . . . . . . . . . . 3 1.3 Terminology. . . . . . . . . . . . . . . . . . . 4 2. Multicast Nested Scoping State. . . . . . . . . . . . 5 3. Multicast Scope Nesting State Option. . . . . . . . . 5 3.1 Multicast Scope List Option . . . . . . . . . . 5 3.2 Representing the Multicast Scope Nesting State . 6 3.3 Multicast Scope Nesting State Option Usage . . . 7 4. Managing Dynamic Nested Scopes. . . . . . . . . . . . 8 4.1 MADCAP Server processing of MZAP messages. . . . 9 4.2 Updating State for Dynamic Nested Scopes due to Timer Expiration . . . . . . . . . . . . . . 9 5. Multicast Scope Nesting State Option Format . . . . . 9 6. Constants . . . . . . . . . . . . . . . . . . . . . . 10 7. Security Considerations . . . . . . . . . . . . . . . 11 8. IANA Considerations . . . . . . . . . . . . . . . . . 11

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