Cabletron Systems SPECTRUM 1800 User Manual page 92

Frame Relay Status and Configuration
Possible line speed entries are:
If you enter a value that is within the valid range but not equal to one of the
values listed above, the speed will be rounded up. If an RS-232 DCE port is
directly connected to the DTE via the standard Cabletron cable, the maximum
supported speed is 64000. If longer cabling is used, the maximum speed is 19200.
N1 Polling Count
The Polling Count speciÞes the number of polling cycles that must pass between
requests for full status reports, which include the status of all PVCs conÞgured on
the physical link. At an interval speciÞed by the T1 Link Integrity Timer
(described below), the logical data terminal equipment (DTE, or user-side
equipment, typically a workstation or router) will send a status enquiry to its
attached DCE (or network-side equipment), requesting the status of the network
link. Each exchange of one enquiry and one response (or status message) deÞnes
one polling cycle. After the number of cycles speciÞed by this value, a request for
a full status report will be sent.
If this port is conÞgured as the logical data communications equipment (DCE), status
enquiries will be initiated at its attached DTE (or user-side equipment), and the local node
NOTE
will respond with status messages. You can determine which link partner is the logical
DTE and which is the logical DCE (network-side equipment) by checking the Logical
DCE Þeld in this window (described below).
N2 Error Threshold
The error threshold deÞnes the number of link reliability and/or protocol errors
that can occur during the period deÞned by the N3 Monitored Events Count
(described below) before the logical DCE is declared inactive.
5-4
75 64000
150 72000
300 112000
600 128000
1200 168000
2400 192000
4800 224000
9600 256000
14400 280000
19200 320000
24000 336000
28800 384000
38400 392000
48000 448000
56000 504000
512000 1008000
560000 1024000
576000 1064000
616000 1088000
640000 1120000
672000 1152000
704000 1176000
728000 1216000
768000 1232000
784000 1280000
832000 1288000
840000 1344000
896000 1400000
952000 1408000
960000 1456000
Configuring Frame Relay Ports
1472000
1512000
1536000
1568000
1600000
1624000
1664000
1668000
1728000
1792000
1856000
1920000
1984000
2048000