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2. LLC
3. SNAP
NOTE: On changing the Frame type field, valid value of the
following text field will vary depending on the new frame
type you selected.
Value :
Valid value that can be entered in this text field depends on the option selected from the
preceding Frame Type selection menu.
Listed below are the criteria for three different Frame Types:
1. For Ethernet: Values in the text field when Ethernet is selected as a Frame Type is
called etype. Valid values for etype ranges from 0x0600-0xffff
2. For LLC: Valid value in this case is comprised of two different sub-values.
a. DSAP: 1-byte long string (0x00-0xff)
b. SSAP: 1-byte long string (0x00-0xff)
3. For SNAP: Valid value in this case also is comprised of two different sub-values.
a.OUI: OUI (Organizationally Unique Identifier) is value in format of xx-xx-xx where
each pair (xx) in string is a hexadecimal value ranges from 0x00-0xff.
b. PID: If the OUI is hexadecimal 000000, the protocol ID is the Ethernet type
(EtherType) field value for the protocol running on top of SNAP; if the OUI is an OUI
for a particular organization, the protocol ID is a value assigned by that organization
to the protocol running on top of SNAP.
In other words, if value of OUI field is 00-00-00 then value of PID will be etype
(0x0600-0xffff) and if value of OUI is other than 00-00-00 then valid value of PID will
be any value from 0x0000 to 0xffff.
Group Name :
A valid Group Name is a unique 16-character-long string for every entry that consists of a
combination of alphabets (a-z or A-Z) and integers(0-9).
NOTE: Special characters and underscore(_) are not allowed.
Adding a New Group to VLAN mapping entry :
Click to add a new entry in mapping table. An empty row is added to the table; Frame Type,
Value and the Group Name can be configured as needed.
The button can be used to undo the addition of new entry.
Buttons:
Save – Click to save changes.
Reset- Click to undo any changes made locally and revert to previously saved
values.
Upper right icon (Refresh):
Click on this icon to refresh the Protocol Group Mapping information manually.