Alcatel-Lucent 7750 SR OS Service Manual page 1018

VPRN Service Configuration Commands
Table 2: Top Position QinQ and TopQ SAP Dot1P Evaluation (Continued)
bottom — The bottom parameter is mutually exclusive to the top parameter. When the bottom
Table 3: Bottom Position QinQ and TopQ SAP Dot1P Evaluation
Table 4: Default Dot1P Explicit Marking Actions
Page 1018
Port / SAP Type
Dot1Q
QinQ / TopQ
QinQ / TopQ
QinQ / QinQ
parameter is specified, the bottom most PBits are used (if existing) to match any dot1p dot1p-
value entries. Table 3 defines the dot1p evaluation behavior when the bottom parameter is
specified.
Port / SAP Type
Null
Null
Null
Null
Null
Dot1Q
Dot1Q
Dot1Q
QinQ / TopQ
QinQ / TopQ
QinQ / QinQ
Egress SAP
Type
Null No preserved Dot1P bits
Null Preserved Dot1P bits
Dot1Q No preserved Dot1P bits
Existing Packet Tags
Dot1Q
TopQ
TopQ BottomQ
TopQ BottomQ
Existing Packet Tags
None
Dot1P (VLAN-ID 0)
Dot1Q
TopQ BottomQ
TopQ (No BottomQ)
None (Default SAP)
Dot1P (Default SAP VLAN-ID 0)
Dot1Q
TopQ
TopQ BottomQ
TopQ BottomQ
Ingress Packet Preserved
Dot1P State
7750 SR OS Services Guide
PBits Used for Match
Dot1Q PBits
TopQ PBits
TopQ PBits
TopQ PBits
PBits Used for Match
None
Dot1P PBits
Dot1Q PBits
BottomQ PBits
TopQ PBits
None
Dot1P PBits
Dot1Q PBits
TopQ PBits
BottomQ PBits
BottomQ PBits
Marked (or Remarked) PBits
None
Preserved tag PBits remarked
using dot1p-value
New PBits marked using dot1p-
value