Brocade Multi-Service IronWare Multiprotocol Label Switch (MPLS) Configuration Guide (Supporting R05.6.00) - Manual (Page 486)

462 Multi-Service IronWare Multiprotocol Label Switch (MPLS) Configuration Guide
53-1003031-02
Configuring VPLS instances
3
Legend for Table 66
W = Mapped CoS from internal priority (Z contributes to internal priority) using the CoS encode
table.
X = Original outer VLAN CoS.
Y = Original inner VLAN CoS.
Z = Incoming EXP bits as described by the Tunnel or VC label column = V or internal priority.
The or option in the Tunnel/VC label column is to differentiate when qos exp encode policy is
on (default) or off.
The or option in the Outgoing Outer VLAN column is to differentiate when qos pcp encode
policy is on (default) or off.
Third party device VC mode is set to RAW mode
Brocade device to third party devices
Table 69 describes the expected Class of Service (CoS) behavior for VPLS packets when VPLS raw
pass through mode is in effect from a Brocade device to third party device.
TABLE 69 Expected class of service behavior for VPLS raw pass through mode (Brocade
device to third party device)
VPLS endpoints Incoming packet MPLS cloud Outgoing packet
Outer VLAN Inner VLAN Tunnel/VC
label (Z) Payload tag Outer VLAN Inner VLAN
Double-tag to
Double-tag X Y V or internal
priority Y Vendor
specific(X) Vendor
specific(Y)
Single-tag to
Double-tag X N/A V or internal
priority X Vendor
specific(X) Vendor
specific (N/A)
Single-tag to
Single-tag X N/A V or internal
priority X Vendor
specific(X) Vendor
specific (N/A)
Untag to
Untag Any Any V or internal
priority Any Vendor
specific (N/A) Vendor
specific (N/A)
Double-tag to
Single Tag X Y V or internal
priority Y Vendor
specific(X) Vendor
specific(Y)
Legend for Table 69
X = Original outer VLAN CoS.
Y = Original inner VLAN CoS.
Z = Incoming EXP bits as described by the Tunnel / VC label column = V or internal priority.
Third party device VC mode is set to RAW mode