135
Option Frame Format:
Code
Len
Agent Information Field
82
N
i1
i2
i3
i4
. . .
iN
The Agent Information field consists of a sequence of Sub-Opt/Length value for each sub-
option, encoded in the following manner:
Sub-Option
Len
Sub-Option Value
1
N
s1
s2
s3
s4
. . .
sN
DHCP Agent Sub-Option Description
Sub-Option Code
--------------- ----------------------
1 Agent Circuit ID Sub-option
2 Agent Remote ID Sub-option
Circuit ID Sub-Option Format:
Sub-option
Type
Length
Information
0x01
Circuit Form
Remote ID Sub-Option Frame Format:
Sub-option
Type
Length
Type
Length
MAC Address
0x02
8
0
6
6
Circuit Form:
The circuit form is a flexible architecture. It allows user to combine any information or the system
configurations into the circuit sub-option.
The Circuit Form is a string format. And its maximum length is 100 characters.
The keyword, %SPACE, will be replaced with a space character.
The other keywords get system configurations from the system and then replace the keyword and
its leading code in the Circuit form. Eventually, the content of the circuit form is part of the
payload on the DHCP option 82 packet.
Rules:
The keyword must have a leading code ‘%’. For example:
%HOSTNAME
.
If there are any characters following the keywords, you must add ‘+’ between the
keyword and character. For example:
%H/
.
If there are any characters before the keyword, you must add ‘+’ between the character
and the keyword. For example:
Test+%HOSTNAME.
Keyword:
HOSTNAME - Add the system name into the Circuit sub-option..
SPACE
- Add a space character.
SVLAN
- Add the service provider VLAN ID into the Circuit sub-option.
If the service provider VLAN is not defined, the system will return
Summary of Contents for NGI-M08C4POE8-2
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Page 197: ...197 Clear Clear the statistics of the valn ...
Page 298: ...298 9 2 2 Web Configurations ...
