Allied Telesis AT-iMG634 - R2 Guia do Utilizador Página 156

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Switching Layer 2 switch functional description
iMG/RG Software Reference Manual (Switching)
2-6
FIGURE 2-1 IP packet overview
2.2.2.8 Power Conservation Mode
In order to provide longer back-up battery life during power-failure situations, some devices support a mode in
which -30 minutes after an AC Power failure is detected, all but the Lan1 interface will be powered off. This
enables the device to reduce battery consuption.
O
PREMB
7
START FRAME
1
DESTINATION
6
SOURCE
6
LENGTH/TYPE =
2
TAG CONTROL
2
MAC CLIENT
IP
IP
FRAME CHECK
2
42 - octect
TA head
MAC
IP
TO
User
Versio
Flag
Tot a l
Identificati
Header
TT
Protoc
Source IP
Destination IP
Protoc
Fragment
Preceden
User CF
D
TRM
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