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RFC 8350
Title: Alternate Tunnel Encapsulation for Data Frames
in Control and Provisioning of
Wireless Access Points (CAPWAP)
Author: R. Zhang,
R. Pazhyannur,
S. Gundavelli,
Z. Cao,
H. Deng,
Z. Du
Status: Experimental
Stream: IETF
Date: April 2018
Mailbox: [email protected],
[email protected],
[email protected],
[email protected],
[email protected],
[email protected]
Pages: 29
Characters: 65342
Updates/Obsoletes/SeeAlso: None
I-D Tag: draft-ietf-opsawg-capwap-alt-tunnel-12.txt
URL: https://www.rfc-editor.org/info/rfc8350
DOI: 10.17487/RFC8350
Control and Provisioning of Wireless Access Points (CAPWAP) is a
protocol for encapsulating a station's data frames between the
Wireless Transmission Point (WTP) and Access Controller (AC).
Specifically, the station's IEEE 802.11 data frames can be either
locally bridged or tunneled to the AC. When tunneled, a CAPWAP Data
Channel is used for tunneling. In many deployments, encapsulating
data frames to an entity other than the AC (for example, to an Access
Router (AR)) is desirable. Furthermore, it may also be desirable to
use different tunnel encapsulation modes between the WTP and the
Access Router. This document defines an extension to the CAPWAP
protocol that supports this capability and refers to it as alternate
tunnel encapsulation. The alternate tunnel encapsulation allows 1)
the WTP to tunnel non-management data frames to an endpoint different
from the AC and 2) the WTP to tunnel using one of many known
encapsulation types, such as IP-IP, IP-GRE, or CAPWAP. The WTP may
advertise support for alternate tunnel encapsulation during the
discovery and join process, and the AC may select one of the
supported alternate tunnel encapsulation types while configuring the
WTP.
This document is a product of the Operations and Management Area Working Group
Working Group of the IETF.
EXPERIMENTAL: This memo defines an Experimental Protocol for the
Internet community. It does not specify an Internet standard of any
kind. Discussion and suggestions for improvement are requested.
Distribution of this memo is unlimited.
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