Cyclades-PR2000
X.25 Menu (Continued)
Parameter | Description |
Packet Size | The packet size to be sent across the interface. This number may be negotiated |
| if the Packet Size Facility is utilized (see last parameter in this table). |
Number of Retries N2 | Number of times an information frame can be resent, without response, before |
| the link is considered down. |
TL | Time the frame level waits for an acknowledgement for a given frame before re- |
| sending it. |
T2 | Time that can elapse, after receiving a frame, until the router must send an |
| acknowledgement. |
T21 | Call Request response Timer. After this time has elapsed, the DTE sends a |
| Clear message. |
T23 | Clear Request response Timer. After this time has elapsed, the DTE retransmits |
| the Clear message. |
Negotiable Facilities | Initiates facility negotiation during virtual circuit creation. |
Send Facility | Determines which facilities are negotiated during virtual circuit creation: Packet |
| size is part of the flow control parameters negotiation, Throughput is part of the |
| throughput class negotiation, and N3 Window (Level 3 Window Size, above) is |
| part of the flow control parameters negotiation. |
Chapter 8 - | 62 |
