Example Of Rsvp - 3Com corebuilder 3500 Implementation Manual

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Example of RSVP

Policing options — Ensure that an RSVP session uses only as much

bandwidth as it requested. The policing options mandate when to

drop nonconforming excess packets. You configure the system to

observe one of three policing options:

Edge — Causes nonconforming excess packets to be dropped only

at the edge (that is, when the traffic has not yet passed through

any network device that has already performed policing for that

flow). The system polices the flow when RSVP requests it. This is

the default policing option. The RSVP protocol knows how to

detect what is edge and what is not when policing

Always — The system always polices the flow.

Never — The system never polices the flow, even if RSVP

requests it.

Figure 94 shows an RSVP configuration in which an RSVP reservation

request flows upstream along a multicast delivery tree (with routers,

Layer 3 switches such as the CoreBuilder 3500) until it merges with

another reservation request for the same source.