H3C S9500 Series Operation Manual - page 5
Operation Manual – MPLS OAM
H3C S9500 Series Routing Switches
Chapter 1 MPLS OAM Configuration
1-4
Padding (all 00Hex)
(14 octets)
BIP16 (2 octets)
Function type (02Hex)
Reserved (00Hex)
TTSI (optional, if not used set to all 00Hex)
(20 octets)
0
7
31
Defect location (4 octets)
Defect type
15
Figure 1-3 OAM FDI packet format
Table 1-3
describes the fields of the OAM FDI packet.
Table 1-3 Description on the fields of the OAM FDI packet
Field
Description
Function type
Packet type, with 0x02 being the FDI packet
Reserved Reserved
field
Defect type
Type of LSP defects
TTSI
LSP identifier, refer to
Table 1-1
. Without TTSI, each byte of the
field is padded with 0x00.
Defect location
Information about defect location
Padding Padded
field
BIP16 Packet
checksum
IV. OAM BDI packets
OAM BDI packets are used by the egress node to notify the ingress node of defect
information through a reverse channel after it finds LSP defects.
Figure 1-4
shows the
format of the OAM BDI packet.
The implications of the fields of the OAM BDI packet are the same as that of the OAM
FDI packet, as shown in Table 5-3.