HP 6125XLG Configuration Manual page 234

Figure 65 PBB frame format
Table 14 describes key fields in the frame.
Table 14 PBB frame key fields
Field Full name
Backbone destination MAC
B-DA
address
B-SA Backbone source MAC address
B-Tag Backbone VLAN tag
I-Tag Backbone service instance tag
S-Tag Service provider VLAN tag
C-Tag Customer VLAN tag
For more information about TPID, see
Description
Destination B-MAC, outer destination MAC address in a PBB
frame. It is the MAC address of the BEB at the destination end
of the PBBN tunnel. The combination of B-DA and B-SA is
B-MAC.
Source B-MAC, outer source MAC address in a PBB frame. It is
the MAC address of the BEB at the source end of the PBBN
tunnel. The combination of B-DA and B-SA is B-MAC.
B-VLAN tag, outer VLAN tag in a PBB frame. It indicates the
VLAN information and priority information of the frame within
the PBBN. The TPID in a B-Tag is 0x8100.
Service identifier of a PBB frame. The I-Tag contains the
following fields:
•
TPID—The TPID in an I-Tag is 0x88E7.
•
I-PCP—Backbone service instance priority code point.
•
I-DEI—Backbone service instance drop eligibility indicator.
•
I-SID—Backbone service instance identifier.
•
C-DA—Destination MAC address of the customer frame.
•
C-SA—Source MAC address of the customer frame.
Outer VLAN tag of the frame in the PBN, which indicates the
VLAN and priority information of the frame within the PBN.
Inner VLAN tag of the frame in the PBN, which indicates the
VLAN and priority information of the frame within the customer
network.
"Configuring VLANs."
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