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Configuration Guide - Network Management and Monitoring

CloudEngine 8800, 7800, 6800, and 5800 V200R005C10

This document describes the configurations of Network Management and Monitoring, including SNMP, RMON, NETCONF, OpenFlow, LLDP, NQA, Mirroring, Packet Capture, Packet Trace, Path and Connectivity Detection Configuration, NetStream, sFlow, and iPCA.
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Overview of OVSDB

Overview of OVSDB


The open vSwitch database (OVSDB) management protocol is used to manage and deploy virtual tunnel end point (VTEP) devices on the network through the software-defined networking (SDN) controller. The CE switch supports the virtual extensible LAN (VXLAN) and OVSDB management protocols and therefore, the CE switch can work with the VMware NSX controller on the SDN network.

Figure 6-1 shows the overlay network consisting of the VMware NSX controller and the CE switch based on VXLAN. After the VMware NSX controller establishes an OVSDB connection with a leaf, the VMware NSX controller delivers VXLAN-related configurations to the leaf device and configures the leaf device to a VXLAN Layer 2 gateway. In this way, the leaf device serving as the VTEP can establish a VXLAN tunnel with the NSX OVS. The leaf device and the NSX OVS can synchronize MAC address entries through the VMware NSX controller so that the VM in server 1 can communicate with the bare metal server.

Figure 6-1 VXLAN-based overlay network


As shown in Figure 6-2, the OVSDB of the CE switch includes two modules:
  • OVSDB server: communicates with the OVSDB clients in the VMware NSX controller and the CE switch, and maintains the OVSDB database. The OVSDB server receives RPC packets from the OVSDB client and then adds, deletes, modifies, and queries entries in the database based on packet contents. The OVSDB client subscribes for entries from the OVSDB server. If the entries in the database change, the OVSDB server proactively notifies the OVSDB client of such changes. These entries are OVSDB schema tables.
  • OVSDB client: translates the OVSDB schema tables subscribed from the OVSDB server into the configurations and entries of the CE switch. It also translates the port and MAC address information about the CE switch into OVSDB schema tables and then sends them to the OVSDB server.
Figure 6-2 OVSDB structure
Updated: 2019-04-20

Document ID: EDOC1100075365

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