Huawei H12-921_V1.0 - HCIE-Data Center Network (Written) V1.0

Resolution: The DHCP Agent is a dynamically assigned IP address L3 Agent: Provides Layer 3 network functions and network address translation functions, allowing tenants' virtual machines to communicate with external networks. In a real-world deployment environment, multiple L3 Agents are typically required to run at the same time. DHCP Agent: Provides dynamic host configuration services to tenant networks, and is mainly used to dynamically assign IP addresses to virtual machines in tenant networks . Plug-in Agent: The plug-in agent needs to be deployed on each host running the hypervisor and provides local virtual switch configuration, depending on the specific plug-in type used. Common agents include ML2 plug-in agents, OpenSwitch agents, and Linux Bridge agents .

Analysis: VPC route table: A route table is a series of routing and forwarding rules that determine where network traffic is forwarded. A VPC can have one or more VPC route tables in a VPC . The main route table is the route table that comes with the VPC, and the subnet in the VPC is associated with the main route table by default. A custom route table is a route table that can be created by a user in addition to the main route table. You can create as many custom route tables as you need. Each subnet needs to be associated with a VPC routing table that guides the routing and forwarding of EC2 instances within that subnet . Except for one route entry with target of local in the VPC route table, which is used for subnet communication in the VPC, the other route entries are different VPC route tables are isolated from each other.

Parse:

Resolution: GRPC is the protocol between the nce-fabricInsight analyzer and the network element. It is not a protocol between the controller and the network element.