INSTALLATION REQUIREMENTS/ SPECIFICATIONS
2.3OPERATING SPECIFICATIONS
The operating specifications for Cabletron Systems' NB20E or NB25E Two Port Bridge Series are included in this section. Cabletron Systems reserves the right to change these specifications at any time without notice.
GENERAL
Parameter | NB20E | NB25E |
Packet Buffer Memory (RAM): | 128K | 128K |
Internal Processor: | 16MHz | 16MHz |
| Intel 80186 | Intel 80186 |
Ethernet Controller: | two 8390 | two 8390 |
| Ethernet | Ethernet |
Controllers | Controllers |
|
Scratch Ram: | 512K | 512K |
PERFORMANCE |
|
|
Parameter | NB20E | NB25E |
Packet Filter Rate |
|
|
(max. viewed per second): | 15,000 Packets | 28,000 Packets |
Packet Forward Rate |
|
|
(max. viewed per second): | 8,000 Packets | 11,000 Packets |
Forwarding Latency: | 125 ∝s Min. | 91 ∝s Min. |
Source Address Table Size: | 2048 Max. | 8191 Max. |
Age Time (User Definable): | 5 Minutes | 5 Minutes |
| (Default) | (Default) |
