3Com 8807 Configuration Manual page 310

310 C 31: OSPF C
HAPTER ONFIGURATION
Figure 77 Format of LLS data
TLV structure: EO_TLV and CA_TLV
1 Format of EO_TLV
Figure 78 Format of EO_TLV
The meaning of each field in EO_TLV:
The type field refers to the type of TLV, and the type of EO_TLV is 1;
The Length field refers to the length of TLV, and the length of EO_TLV is 4;
The Extend Options field is the extend options of OSPF. RS_bit and LR_bit are set in
this Option field in OSPF GR. The following figure describes the detailed format:
Figure 79 Format of Extend Option
Format of CA_TLV
Figure 80 Format of CA_TLV
The meaning of each field in the CA_TLV:
The type field refers to the type of CA_TLV, and the type of CA_TLV is 2;