Reservation Tear Message; Reservation Confirm Message; Reservation Styles - Extreme Networks BlackDiamond 6800 MPLS Installation And User Manual

Reservation Tear Message

The reservation tear message deletes the matching reservation state. If there is no
matching reservation state, the message is discarded. The reservation tear message can
delete any subset of the filter specification in FF-style or SE-style reservation state.
Reservation styles are described in Table 5-2.
Reservation tear messages are initiated explicitly by receivers or by a node in which the
reservation state has timed out. Reservation tear messages travel upstream towards all
matching senders.

Reservation Confirm Message

The reservation confirmation message is used to acknowledge a reservation request.
Reservation confirmation messages are sent to the receiver host.

Reservation Styles

A reservation style is a set of options that is included in the reservation request.
One reservation style concerns how reservations requested by different senders within
the same session are handled. This type of reservation style is handled in one of two
ways: either create a distinct reservation for each sender in the session, or use a single
reservation that is shared among all packets of the selected senders.
Another reservation style concerns how senders are selected. Again, there are two
choices: an explicit list of all selected senders or a wildcard that implies all senders in the
session.
Table 5-1 describes the relationship between reservation attributes and styles
.
Table 5-1: Reservation Attributes and Styles
Sender Selection
Explicit
Wildcard
MPLS Module Installation and User Guide
Distinct Reservation Style Shared Reservation Style
Fixed filter (FF)
Not defined
Shared explicit (SE)
Wildcard filter (WF)
RSVP Elements
5-5