Description: 
The value of the configured protocol type.
By default, semicolon(;) is used as a seperator between different
parts in the content of the object.

The relationship among hh3cProtocolVlanProtocolType, hh3cProtocolVlanProtocolSubType
and hh3cProtocolVlanProtocolTypeValue is as follows.

|--------------------------------------------------------------------------------------------|
| hh3cProtocolVlan- | hh3cProtocolVlan- | hh3cProtocolVlanProtocolTypeValue                     |
| ProtocolType     | ProtocolSubType  |                                                      |
|------------------|------------------|------------------------------------------------------|
| ip               | notused          | IP address with subnet mask in dotted decimal format.|
|                  |                  | such as 10.10.11.12;255.255.0.0. By default,subnet   |
|                  |                  | mask is 255.255.255.0 .                              |
|------------------|------------------|------------------------------------------------------|
| ipv6             | notused          | Zero length string                                   |
|------------------|------------------|------------------------------------------------------|
| at               | notused          | Zero length string                                   |
|------------------|------------------|------------------------------------------------------|
| ipx              | ethernetii       | Zero length string                                   |
|                  | llc              |                                                      |
|                  | raw              |                                                      |
|                  | snap             |                                                      |
|------------------|------------------|------------------------------------------------------|
| mode-snap        | notused          | zero length string                                   |
|                  |------------------|------------------------------------------------------|
|                  | etype            | hex string like '600', which means 0x0600.           |
|                  |                  | The range is [0x600..0xffff]                         |
|------------------|------------------|------------------------------------------------------|
| mode-ethernetii  | notused          | zero length string                                   |
|                  |------------------|------------------------------------------------------|
|                  | etype            | hex string like '600', which means 0x0600.           |
|                  |                  | The range is [0x600..0xffff]                         |
|------------------|------------------|------------------------------------------------------|
| mode-llc         | notused          | the sequence of different parts is as follows.       |
|                  |                  | [dsap value][;ssap value][dsap value;ssap value]     |
|                  |                  | Both range is [0x00..0xff]                           |
|                  |                  |                                                      |
|                  |                  | For example. Suppose value of dsap and ssap are 0x09 |
|                  |                  | and 0x0a.                                            |
|                  |                  | If neither dsap or ssap, the string length is zero.  |
|                  |                  | If dsap provided, the string is '09;' or '09'        |
|                  |                  | If ssap provided, the value is ';0a'                 |
|                  |                  | If dsap and ssap provided, the value is '09;0a'      |
|------------------|------------------|------------------------------------------------------|