Explanation
VXLAN (Virtual eXtensible Local Area Network, virtual extended local area network), is NVO3 (Network Virtualization) defined by IETF over Layer 3) One of the standard technologies, using L2 over L4 (MAC-in-UDP) packet encapsulation mode, which encapsulates Layer 2 packetsEncapsulation with the Layer
3 protocol can realize the expansion of the Layer 2 network within the scope of the Layer 3, and at the same time meet the needs of the large Layer 2 virtual migration and multi-tenancy of the data center.
VTEP (VXLAN Tunnel Endpoints, VXLAN tunnel endpoints): VXLAThe edge device of the N network is the start and end point of the VXLAN tunnel, and the related processing of VXLAN packets is performed on this.
VNI (VXLAN Network Identifier, VXLAN network identifier):
VXLAThe N header and the original Ethernet frame are used as UDP data. In the UDP header, the destination port number (VXLAN Port) is fixed to 4789, the source port number (UDP Src. Port) is the value of the original ether frame calculated by the hash algorithm.
source IP address (Outr Src. IP) is the V to which the source VM belongsThe IP address of the TEP, the destination IP address (Outer Dst. IP) is the V to which the destination VM belongsIP address of the TEP.
Source MAC address (Src. MAC Addr.) is the MAC address of the VTEP to which the source VM belongs, and the destination MAC address (Dst. MAC Addr.) is the MAC address of the next-hop device on the path to the destination VTEP.

Explanation
Five types of LSAs can be filtered by configuring the corresponding filtering policy on the ABR or ASBR.
an examinationTYPE 5Whether the FA address of the LSA is 0. If it is 0, it means that the route must go through the ASBR forwards, then preferably to ASBR metricshortest path. When there are multiple shortest paths, it is preferable to start from the larger area ID learned.
If the FA is not 0, the shortest path to the FA address metric is preferred, and the route to the FA must be intra-domain or inter-domain, otherwise the table is ignoreditem.

Explanation
Static RP needs to be specified manually