Link and Port Configuration
NetRunner W
AN User’s Manual
4-24
Frame Relay Links and DLCIs
Unit
Max # of Frame
Relay Access Links
Ports which can be
Frame Relay
Access Links
Max # of Configured
PVCs/DLCIs
Per Node
NetRunner 75E
2
A1, A2
32
NetRunner
500ET
4
A1-A4
64
NetRunner
1000E
6
A1-A6
96
NetRunner
2000E,ED
6
A1-A6
128
There are generally two modes of operation for frame relay:
D
Virtual Link: Permanent virtual circuits (PVCs) between Integration
units which carry traffic terminated or switched at each node. The
DLCI's Level 2 Protocol must be configured for
virtual
.
D
PassThrough PVCs (permanent virtual circuits): A connection
involving two or more DLCIs which supports frame relay access
devices (FRADs). The DLCI's Level 2 Protocol must be configured for
either
Transparent
or
Fragmented
. Refer to PassThrough
Applications on page 433 for additional information.
FRAD
FRAD
Activated Link Maximums
An
activated link is a PVC that has been configured on the unit.
Unit
Virtual Links
(up to a maximum of)
Pass–Through PVCs
1
(up to a maximum of)
NetRunner 75E
12
10
NetRunner 500ET
20
22
NetRunner 1000E
24
36
NetRunner 2000E,ED
36
46
1
In this application, there are two DLCIs for each PVC. These may be increased if
the number of virtual links is decreased.
Note: The maximums given are for a frame relay only application. In a hybrid network
(frame relay and interconnect links) the numbers may vary. Contact your MI-
COM Certified Distributor for additional information.