Cyclades-PR2000
The Local Management Interface (LMI) Protocol provides services not available in simple Frame Relay. It is used for controlling the connection between the user and the network. It monitors this link, maintains the list of DLCs, and sends status messages about the PVCs. A separate virtual circuit is created to pass this information (DLCI 0).
Frame Relay Menu CONFIG=>INTERFACE=><LINK>=>ENCAPSULATION =>FRAME RELAY
Parameter | Description |
SNAP IP | Indicates that the |
| end must be using the same header type (NLPID or SNAP) as the router on the receiving end. |
| See the CyROS Reference Guide for more information. |
LMI | Selects the Local Management Interface specification to be used. ANSI, Group of Four |
| (defined by the vendors that first implemented Frame Relay), Q933a (defined by |
| None (used for a dedicated FR connection without a network). |
T391 | Interval between the LMI Status Enquiry messages. |
N391 | Full Status Polling Counter. Full Status Enquiry messages are sent every |
| Enquiry message. |
N392 | Error Threshold. The network counts how many events occur within a given period and |
| considers an interface inactive when the number of events exceeds a threshold. N393 is the |
| number of events to be considered and N392 the number of errors within this period. If N392 |
| of the last N393 events are errors, the interface is deemed inactive. A successful event is the |
| receipt of a valid Status Enquiry message |
N393 | Monitored Events Count. See the description of N392. This value must be larger than N392. |
CIR | Committed Information Rate, in percentage of total bandwidth (bandwidth defined in |
| CONFIG=>INTERFACE=>SWAN =>TRAFFIC CONTROL =>GENERAL =>BANDWIDTH). |
| Traffic above this rate may be discarded if the network is congested. |
Bandwidth | Enables traffic control per DLCI. Traffic control options appear in the Add DLCI Menu. |
Reservation |
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Chapter 8 - | 56 |