Riverstone Networks WICT1-12 - Manual (Page 612)

30-8 Riverstone Networks RS Switch Router User Guide Release 8.0
Configuring Frame Relay Interfaces for the RS WAN Configuration
30.3.2 Permanent Virtual Circuits (PVCs)
WAN interfaces can take advantage of connections that assure a minimum level of available bandwidth at all times.
These standing connections, called Permanent Virtual Circuits (PVCs), allow you to route critical packet transmissions
from host to peer without concern for network congestion significantly slowing, let alone interrupting, your
communications. PVCs are the most prevalent type of circuit used today and are similar to dedicated private lines in
that you can lease and set them up through a service provider.
In a corporate setting, network administrators can use PVCs in an internal network to set aside bandwidth for critical
connections, such as videoconferencing with other corporate departments.
30.4 CONFIGURING FRAME RELAY INTERFACES
FOR THE RS
This section provides an overview of configuring a host of WAN parameters and setting up WAN interfaces. When
working in the Frame Relay protocol environment, you must first define the type and location of the WAN interface.
Having established the type and location of your WAN interfaces, you need to (optionally) define one or more service
profiles for your WAN interfaces, then apply a service profile to the desired interface(s). An example of this process
is covered in "Frame Relay Port Configuration".
30.4.1 Defining the Type and Location of a Frame Relay and VC Interface
To configure a frame relay WAN port, you need to first define the type and location of one or more frame relay WAN
ports or virtual circuits (VCs) on your RS. The following command line displays a simplified example of a frame relay
WAN port definition:
Note If the port is a HSSI port that will be connected to a HSSI port on another router,
you can also specify
clock
<clock-source> in your definition.
Then, you must set up a frame relay virtual circuit (VC). The following command line displays a simplified example
of a VC definition:
30.4.2 Setting up a Frame Relay Service Profile
Once you have defined the type and location of your Frame Relay WAN interface(s), you can configure your RS to
more efficiently utilize available bandwidth for Frame Relay communications.
Define the type and location of a
frame relay WAN port.
port set
<port>
wan-encapsulation
frame-relay speed
<number>
Define the type and location of a frame relay VC.
frame-relay create vc port
<port>