D-Link xStack DES-3200-10 User Manual page 28

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xStack DES-3200-10/18/28/28F Layer 2 Ethernet Managed Switch User Manual
Circuit ID sub-option format:
a. b.
1 6
1 byte 1 byte 1 byte
a. Sub-option type
b. Length
c. Circuit ID type
d. Length
e. VLAN: the incoming VLAN ID of DHCP client packet.
f. Module: For a standalone switch, the Module is always 0; For a stackable switch, the Module is the
Unit ID.
g. Port: The incoming port number of DHCP client packet, port number starts from 1.
Remote ID sub-option format: (default)
1. 2.
2 8
1 byte 1 byte 1 byte
1. Sub-option type
2. Length
3. Remote ID type
4. Length
5. MAC address: The Switch's system MAC address.
Remote ID sub-option format:(for user-configured string)
1. 2.
2 N+2
1 byte 1 byte 1 byte
1. Sub-option type
2. Length
3. Remote ID type
4. Length
5. User configured Remote-ID
Figure 2 - 16. Circuit ID and Remote ID Sub-option Format
c. d.
0 4
1 byte
3. 4.
0 6
1 byte
3. 4.
1 N ASCII Remote ID String (up to 127 characters)
1 byte
e. f.
VLAN Module
2 bytes 1 byte
5.
MAC address
6 bytes
5.
N bytes
27
g.
Port
1 byte