Cabletron Systems NB20E ユーザーズマニュアル
INSTALLATION REQUIREMENTS/ SPECIFICATIONS
2-2
2.3
OPERATING 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.
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):
(max. viewed per second):
15,000 Packets 28,000 Packets
Packet Forward Rate
(max. viewed per second):
(max. viewed per second):
8,000 Packets
11,000 Packets
Forwarding Latency:
125
µ
s Min.
91
µ
s Min.
Source Address Table Size:
2048 Max.
8191 Max.
Age Time (User Definable):
5 Minutes
5 Minutes
(Default)
(Default)