D-Link xStack DGS-3120 Series Cli Reference Manual page 315

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xStack DGS-3120 Series Layer 3 Managed Gigabit Ethernet Switch CLI Reference Guide
a.
1
1 byte
a. Sub-option type 1 (1 means circuit ID).
b. Length: Total length of user-defined string. By default, the length is 0 with no field
value.
c. Value: User-defined string that can be configured using the config dhcp_relay
port_option_82 command. The maximum length of the user-defined string is 32
bytes.
vendor4 - If configured to vendor4, the circuit ID uses the following format:
a. b.
1 n
1 byte 1 byte
a. Sub-option type (1 means circuit ID)
b. Length: Total lengths of all follow fields.
c. System name.
d. Separator character
e. Module ID
f. Separator character.
g. Port ID: port number
h. Separator character
i. CVID(Client VLAN ID)
vendor5 – If configured to vendor5, the circuit ID uses the following format:
a. b.
1 n
1 byte 1 byte
i. j.
Chass /
is ID (0x2F)
1-2 1 byte
bytes
a. Sub-option type (1 means circuit ID).
b. Length.
c. System name of the Switch. NOTE: If the System name exceeds 128 bytes, it will only
use the first 128 bytes.
d. Space
e. Character 'e'.
f. Character 't'.
g. Character 'h'.
h. Space.
i. Chassis ID. The number of the chassis. For stand-alone devices, the chassis ID will
always be 0. For stacked devices, the chassis ID will be the unit ID.
j. Slash (/).
k. Slot ID. The number of the slot used in the chassis. For non-chassis devices, the slot
ID is the module ID of the device starting from 0.
l. Slash (/).
m. Port number. The number of the client's port.
n. Colon (:).
o. VLAN ID. The ID number of the client's VLAN.
vendor6 – If configured to vendor6, the cicuit ID uses the following:
F01
1
b.
n
1 byte
c. d.
System -
name
0-128 1 byte
bytes
c. d.
System Space
name (0x20)
0-128 1 byte
bytes
k. l.
Slot ID /
(0x2F)
1-2 1-2
bytes bytes
F02 F03 F04
Length E t
(0x45) (0x74)
310
c.
User-defined
Maximum 32 bytes
e. f. g.
Module / Port ID
ID
1 byte 1 byte 1-2
bytes
e. f. g.
e t h
(0x65) (0x74) (0x68)
1 byte 1 byte 1 byte
m. n. o.
Port : VLAN
number (0x3A) ID
1 byte 1 byte 1-4
bytes
F05 F06
h e
(0x68) (0x65)
h. i.
- CVID
1 byte 1-4
bytes
h.
Space
(0x20)
1 byte
F07 F08
r n
(0x72) (0x6E)