Packet-Switching Network - HP ProCurve Secure 7000dl Series Basic Management And Configuration Manual

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Configuring the Data Link Layer Protocol for E1, T1, and Serial Interfaces

Configuring the Logical Interface

Subscriber 1

Subscriber 2

Figure 6-5. A Frame Relay Network Dynamically Allocates Bandwidth.

Packet-Switching Network

Frame Relay transfers data through multiple nodes in a shared network using

packet switching. Frame Relay divides data into frames, and each frame

travels through the network individually, passing from one Frame Relay

switch to another in a non-fixed path, until the frames are reassembled at their

destination.

Although frames can take multiple and variable paths through a shared

network, two routers, which are identified by administratively assigned

circuit IDs, define the fixed endpoints to a permanent virtual circuit (PVC).

In a Frame Relay network, a PVC is a logical connection between two sites.

(See Figure 6-6.)

Transmitting an average of 640 Kbps

with bursts to 832 Kbps

Public Carrier's CO

Transmitting an average of 768 Kbps

with bursts to 900 Kbps

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