Filter
Top Products
4-20
Chapter 4
Cajun P550/P880 Switch ATM Uplink User Guide, Version 1.1
Creating a PVC Class Set
There are four different PVC class sets. They are similar to QoS Sets
in LANE.
■
UBR
(Unspecified Bit Rate) - Allows any amount of data up
to a specified maximum to be sent across the network, but
there are no guarantees in terms of delivery, file transfer,
ethernet connectivity, cell loss rate or delay.
■
CBR
(Constant Bit Rate) - Used for connections that depend
on precise clocking to ensure undistorted delivery.
■
rtVBR
(real-time Variable Bit Rate) - Used for connections in
which there is a fixed timing relationship between samples.
This is a service category intended for time dependent, real-
time applications (voice and video) with variable bandwidth.
■
nrtVBR
(non-real-time Variable Bit Rate) - Used for
connections in which there is no fixed timing relationship
between samples, but that still need a guaranteed
connection. This service category is intended for non-real-
time applications with variable traffic, guaranteed delivery,
but not dependent on time.
To create a PVC class set:
1.
Select
Modules & Ports > Configuration
from the Web
Agent. The Module Information dialog box opens
(Figure 4-1).
2.
Click
the number of the switch port
in the Switch Ports
column of the ATM Uplink module you want to create a PVC
class set for. The Switch Ports dialog box opens (Fig ure4-2).
3.
Click
Manage Virtual Switch Ports
. The Virtual Switch
Ports dialog box opens (Figu re4-3).
* Note:
You may have to scroll down to see the Manage
Virtual Switch Ports link.
4.
Click
Manage Links
in the ATM Links column. The ATM
Link for Virtual Switch Port <#> dialog box opens
(Figure 4-6).
5.
Click
Manage PVCs
in the PVCs column for the ATM Link
you want to manage the PVCs for. The PVCs for ATM Link
<xxx> dialog box opens (Figur e4-8).