Mesh Network Overview

The Instant secure enterprise mesh solution is an effective way to expand network coverage for outdoor and indoor enterprise environments without any wires. As traffic traverses across mesh Instant APs, the mesh network automatically reconfigures around broken or blocked paths. This self-healing feature provides increased reliability and redundancy and allows the network to continue operation even when an Instant AP stops functioning or if a connection fails.

Mesh Instant APs

Mesh network requires at least one valid uplink (wired or 3GThird Generation of Wireless Mobile Telecommunications Technology. See W-CDMA.) connection. Any provisioned Instant AP that has a valid uplink (wired or 3GThird Generation of Wireless Mobile Telecommunications Technology. See W-CDMA.) functions as a mesh portal, and the Instant AP without an EthernetEthernet is a network protocol for data transmission over LAN. link functions as a mesh point. The mesh portal can also act as a virtual controller. Mesh portals and mesh points are also known as mesh nodes, a generic term used to describe Instant APs configured for mesh.

If two Instant APs have valid uplink connections, there is redundancy in the mesh network, and most mesh points try to mesh directly with one of the two portals. However, depending on the actual deployment and RFRadio Frequency. RF refers to the electromagnetic wave frequencies within a range of 3 kHz to 300 GHz, including the frequencies used for communications or Radar signals. environment, some mesh points may mesh through other intermediate mesh points.

In an Instant mesh network, the maximum hop count is two nodes (point > point > portal) and the maximum number of mesh points per mesh portal is eight.

Mesh Instant APs detect the environment when they boot up, locate and associate with their nearest neighbor, to determine the best path to the mesh portal.

Instant mesh functionality is supported only on dual-radio Instant APs. On dual-radio Instant APs, the 2.4 GHzGigahertz. radio is always used for client traffic, while the 5 GHzGigahertz. radio is always used for both mesh-backhaul and client traffic.

The mesh network must be provisioned for the first time by plugging into the wired network. After that, the mesh service works on Instant APs like it does on any other regulatory domain.

Mesh Portals

A mesh portal is a gatewayGateway is a network node that allows traffic to flow in and out of the network. between the wireless mesh network and the enterprise wired LANLocal Area Network. A LAN is a network of connected devices within a distinct geographic area such as an office or a commercial establishment and share a common communications line or wireless link to a server.. The mesh roles are automatically assigned based on the Instant AP configuration. A mesh network could have multiple mesh portals to support redundant mesh paths (mesh links between neighboring mesh points that establish the best path to the mesh portal) from the wireless mesh network to the wired LANLocal Area Network. A LAN is a network of connected devices within a distinct geographic area such as an office or a commercial establishment and share a common communications line or wireless link to a server..

The mesh portal broadcasts a mesh services set identifier or mesh cluster name to advertise the mesh network service to other mesh points in that Instant network. This is not configurable and is transparent to the user. The mesh points authenticate to the mesh portal and establish a link that is secured using AESAdvanced Encryption Standard. AES is an encryption standard used for encrypting and protecting electronic data. The AES encrypts and decrypts data in blocks of 128 bits (16 bytes), and can use keys of 128 bits, 192 bits, and 256 bits. encryption.

 

The mesh portal reboots after 5 minutes when it loses its uplink connectivity to a wired network.

Mesh Points

The mesh point establishes an all-wireless path to the mesh portal. The mesh point provides traditional WLANWireless Local Area Network. WLAN is a 802.11 standards-based LAN that the users access through a wireless connection. services such as client connectivity,IDSIntrusion Detection System. IDS monitors a network or systems for malicious activity or policy violations and reports its findings to the management system deployed in the network. capabilities, user role association, and QoSQuality of Service. It refers to the capability of a network to provide better service and performance to a specific network traffic over various technologies. for LANLocal Area Network. A LAN is a network of connected devices within a distinct geographic area such as an office or a commercial establishment and share a common communications line or wireless link to a server.-to-mesh communication to clients and performs mesh backhaul or network connectivity.

 

A mesh point also supports LANLocal Area Network. A LAN is a network of connected devices within a distinct geographic area such as an office or a commercial establishment and share a common communications line or wireless link to a server. bridging. You can connect any wired device to the downlink port of the mesh point. In the case of single EthernetEthernet is a network protocol for data transmission over LAN. port platforms such as Instant AP-105, you can convert the Eth0 uplink port to a downlink port by enabling Eth0 Bridging. For additional information, see Configuring Wired Bridging on Ethernet 0 for Mesh Point.

Automatic Mesh Role Assignment

Previously, when a mesh point discovered that the EthernetEthernet is a network protocol for data transmission over LAN. 0 port link was up without EthernetEthernet is a network protocol for data transmission over LAN. 0 bridge configured, the mesh point rebooted immediately. Aruba Instant 8.4.0.0 supports enhanced role detection during Instant AP boot up and Instant AP running time.

When a mesh point discovers that the EthernetEthernet is a network protocol for data transmission over LAN. 0 port link is up, it sends loop detection packets to check whether the EthernetEthernet is a network protocol for data transmission over LAN. 0 link is available. If it is available, the mesh point reboots and becomes a mesh portal. Otherwise, the mesh point does not reboot.

Mesh Role Detection During System Boot Up

If an Instant AP boots up and discovers that the EthernetEthernet is a network protocol for data transmission over LAN. link is down, it acts as a mesh point. If the EthernetEthernet is a network protocol for data transmission over LAN. link is up, the Instant AP continues to detect if the network is reachable. In a static IP address scenario, the Instant AP pings the gatewayGateway is a network node that allows traffic to flow in and out of the network.. If the ping is successful, the Instant AP acts as a mesh portal. Otherwise, it acts as a mesh point. In case of DHCPDynamic Host Configuration Protocol. A network protocol that enables a server to automatically assign an IP address to an IP-enabled device from a defined range of numbers configured for a given network. , if the Instant AP obtains the IP address successfully, it acts as a mesh portal. Otherwise, it acts as a mesh point. In case of IPv6, Instant APs do not support the static IP address but only support DHCPDynamic Host Configuration Protocol. A network protocol that enables a server to automatically assign an IP address to an IP-enabled device from a defined range of numbers configured for a given network.  for detection of network reachability.

 

If the Instant AP has a 3GThird Generation of Wireless Mobile Telecommunications Technology. See W-CDMA./4GFourth Generation of Wireless Mobile Telecommunications Technology. See LTE. USBUniversal Serial Bus. USB is a connection standard that offers a common interface for communication between the external devices and a computer. USB is the most common port used in the client devices. modem plugged, it always acts as a mesh portal.

If the Instant AP is set to EthernetEthernet is a network protocol for data transmission over LAN. 0 bridging, it always acts as a mesh point.

Mesh Role Detection During System Running Time

Mesh Point Role Change: When a mesh point detects whether its EthernetEthernet is a network protocol for data transmission over LAN. link is up, it continues to use Loop Protection (based on the Loop Protection for Secure Jack Port feature), to check if the loop has been detected. If the loop is detected, the Instant AP reboots. Otherwise, the Instant AP does not reboot and the mesh role continues to act as a mesh point.

You can enable enhanced mesh role detection by using the CLICommand-Line Interface. A console interface with a command line shell that allows users to execute text input as commands and convert these commands to appropriate functions.:

In the CLI

(Instant AP)(config)# enhanced-mesh-role-detect

/*]]>*/