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Huawei AC6605

Huawei AC6605 is a box wireless access controller that provides wired and wireless access services. It delivers flexible campus and office networking solutions for medium-to large-sized enterprises and branches.

  •  10 Gbit/s forwarding capability
  •  1024 access points
  •  10K users
  •  1+1 hot backup
  •  10GE uplink ports

Product Features

Switching and forwarding features

Feature

Description

Ethernet features

Ethernet

Operating modes of full duplex, half duplex, and auto-negotiation
Rates of an Ethernet interface: 10 Mbit/s, 100 Mbit/s, 1000 Mbit/s, and auto-negotiation
Flow control on interfaces
Jumbo frames
Link aggregation
Load balancing among links of a trunk
Interface isolation and forwarding restriction
Broadcast storm suppression

VLAN

Access modes of access, trunk, hybrid, and
Default VLAN

MAC

Automatic learning and aging of MAC addresses
Static, dynamic, and blackhole MAC address entries
Packet filtering based on source MAC addresses
Interface-based MAC learning limiting

ARP

Static and dynamic ARP entries
ARP in a VLAN
Aging of ARP entries

LLDP

LLDP

Ethernet loop protection

MSTP

STP
RSTP
MSTP
BPDU protection, root protection, and loop protection Partitioned STP

IPv4 forwarding

IPv4 features

ARP and RARP

ARP proxy

Auto-detection

NAT

Bonjour Protocol

Unicast routing features

Static route

RIP-1 and RIP-2

OSPF

BGP

IS-IS

Routing policies and policy-based routing

URPF check

DHCP client, server and relay

DHCP snooping

Multicast routing features

IGMPv1, IGMPv2, and IGMPv3

PIM-SM

Multicast routing policies

RPF

IPv6 forwarding

IPv6 features

ND Protocol

Unicast routing features

Static route

RIPng

OSPFv3

BGP4+

IS-IS IPv6

DHCPv6

DHCPv6 Snooping

Multicast routing features

MLD

MLD Snooping

Device reliability

BFD

BFD

Layer 2 multicast features

Layer 2 multicast

IGMP snooping
Prompt leave
Multicast traffic control
Inter-VLAN multicast replication

Ethernet OAM

EFM OAM

Neighbor discovery
Link monitoring
Fault notification
Remote loopback

QoS features

Traffic classification

Traffic classification based on the combination of the L2 protocol header, IP 5-tuple, outbound interface, and 802.1p priority

Action

Access control after traffic classification
Traffic policing based on traffic classification
Re-marking packets based on traffic classifiers
Class-based packet queuing
Associating traffic classifiers with traffic behaviors

Queue scheduling

PQ scheduling
DRR scheduling
PQ+DRR scheduling
WRR scheduling
PQ+WRR scheduling

Congestion avoidance

SRED
WRED

Configuration and maintenance

Terminal service

Configurations using command lines Error message and help information in English
Login through console and Telnet terminals
Send function and data communications between terminal users

File system

File systems
Directory and file management
File uploading and downloading using FTP and TFTP

Debugging and maintenance

Unified management over logs, alarms, and debugging information
Electronic labels
User operation logs
Detailed debugging information for network fault diagnosis
Network test tools such as traceroute and ping commands
Interface mirroring and flow mirroring

Version upgrade

Device software loading and online software loading
BootROM online upgrade
In-service patching

Security and management

System security

Different user levels for commands, preventing unauthorized users from accessing AC
SSHv2.0
RADIUS and HWTACACS authentication for login users
ACL filtering
DHCP packet filtering (with the Option 82 field)
Defense against control packet attacks
Defenses against attacks such as source address spoofing, Land, SYN flood (TCP SYN), Smurf, ping flood (ICMP echo), Teardrop, and Ping of Death attacks
IPSec

Network management

ICMP-based ping and traceroute
SNMPv1, SNMPv2c, and SNMPv3
Standard MIB
RMON

AP Management Specifications

Feature

Specifications

AP access control

Displays MAC addresses or SNs of APs in the whitelist.
Adds a single AP or multiple APs (by specifying a range of MAC addresses or SNs) to the whitelist.
Automatically discovering and manually confirming APs.
Automatically discovering APs without manually confirming them.

AP region management

Supports three AP region deployment modes:
·Distributed deployment: APs are deployed independently. An AP is equivalent to a region and does not interfere with other APs. APs work at the maximum power and do not perform radio calibration.
·Common deployment: APs are loosely deployed. The transmit power of each radio is less than 50% of the maximum transmit power.
·Centralized deployment: APs are densely deployed. The transmit power of each radio is less than 25% of the maximum transmit power.
Specifies the default region to which automatically discovered APs are added.

AP profile management

Specifies the default AP profile that is applied to automatically discovered APs.

AP type management

Manages AP attributes including the number of interfaces, AP types, number of radios, radio types, maximum number of virtual access points (VAPs), maximum number of associated users, and radio gain (for APs deployed indoors).
Provides default AP types.
Supports user-defined AP types.

Network topology management

Supports LLDP topology detection.

Radio Management Specifications

Feature

Specifications

Radio profile management

The following parameters can be configured in a radio profile:

Radio working mode and rate
Automatic or manual channel and power adjustment mode
Radio calibration interval
The radio type can be set to 802.11b, 802.11b/g, 802.11b/g/n, 802.11g, 802.11n, 802.11g/n, 802.11a, 802.11a/n, or 802.11ac.
You can bind a radio to a specified radio profile.

Unified static configuration of parameters

Radio parameters such as the channel and power of each radio are configured on the AC and then delivered to APs.

Dynamic management

APs can automatically select working channels and power when they go online.
In an AP region, APs automatically adjust working channels and power in the event of signal interference:
·Global calibration: The optimal working channel and power of a specified AP can be adjusted.
·Partial calibration: The optimal working channels and power of all the APs in a specified region can be adjusted.
When an AP is removed or goes offline, the AC6605-26-PWR increases the power of neighboring APs to compensate for the coverage hole.
Automatic selection and calibration of radio parameters in AP regions are supported.

Enhanced service capabilities

The AC supports 802.1a/b/g/n/ac. These modes can be used independently or jointly (a\n, b\g, b\g\n, and g\n).
The AC preferentially uses the 5 GHz frequency band for STAs.
2.4 GHz and 5 GHz frequency load balancing

WLAN Service Management Specifications

Feature

Specifications

ESS management

Allows you to enable SSID broadcast, set the maximum number of access users, and set the association aging time in an ESS.
Isolates APs at Layer 2 in an ESS.
Maps an ESS to a service VLAN.
Associates an ESS with a security profile or a QoS profile.
Enables IGMP for APs in an ESS.

VAP-based service management

Adds multiple VAPs at a time by binding radios to ESSs.
Displays information about a single VAP, VAPs with a specified ESS, or all VAPs.
Supports configuration of offline APs.
Creates VAPs according to batch delivered service provisioning rules in automatic AP discovery mode.

Service provisioning management

Supports service provisioning rules configured for a specified radio of a specified AP type.
Adds automatically discovered APs to the default AP region. The default AP region is configurable.
Applies a service provisioning rule to a region to enable APs in the region to go online.

Multicast service management

Supports IGMP snooping.
Supports IGMP proxy.

Load balancing

Performs load balancing among radios in a load balancing group.
Supports two load balancing modes:
Based on the number of STAs connected to each radio
Based on the traffic volume on each radio

BYOD (Bring Your Own Device)

Identification of device types according to the OUI in the MAC address
Identification of device types according to the user agent (UA) field in an HTTP packet
Identification of device types according to DHCP Option information
Carrying of device type information in RADIUS authentication and accounting packets

Positioning services

Locating AeroScout and Ekahau tags
Locating Wi-Fi terminals

Spectrum analysis

Identification of the following interference sources: bluetooth, microwave ovens, cordless phones, ZigBee, game controller, 2.4 GHz/5 GHz wireless audio and video devices, and baby monitors.
Working with the eSight to locate the interference sources and display spectrum.

QoS

Feature

Specifications

WMM profile management

Enables or disables Wi-Fi Multimedia (WMM).
Allows a WMM profile to be applied to radios of multiple APs.

Traffic profile management

Manages traffic from APs and maps packet priorities according to traffic profiles.
Applies a QoS policy to each ESS by binding a traffic profile to each ESS.

AC traffic control

Manages QoS profiles.
Uses ACLs to perform traffic classification.
Limits incoming and outgoing traffic rates for each user based on inbound and outbound CAR parameters.
Limits the traffic rate based on ESSs or VAPs.

AP traffic control

Controls traffic of multiple users and allows users to share bandwidth. Limits the rate of a specified VAP.

Packet priority configuration

Sets the QoS priority (IP precedence or DSCP priority) for CAPWAP control channels.
Sets the QoS priority for CAPWAP data channels:
Allows you to specify the CAPWAP header priority.
Maps 802.1p priorities of user packets to ToS priorities of tunnel packets.

Airtime scheduling

Allocates equal time to users for occupying the channel, which improves users' Internet access experience.

WLAN Security Specifications

Feature

Specifications

WLAN security profile management

Manages authentication and encryption modes using WLAN security profiles.
Binds security profiles to ESS profiles.

Authentication modes

Open system authentication with no encryption
WEP authentication/encryption
WPA/WPA2 authentication and encryption:
WPA/WPA2-PSK+TKIP
WPA/WPA2-PSK+CCMP
WPA/WPA2-802.1x+TKIP
WPA/WPA2-802.1x+CCMP
WAPI authentication and encryption:
Supports centralized WAPI authentication.
Supports three-certificate WAPI authentication, which is compatible with traditional two-certificate authentication.
Issues a certificate file together with a private key.
Allows users to use MAC addresses as accounts for authentication by the RADIUS server.
Portal authentication:
Allows an AC to function as a portal gateway.
Prohibits an AC from functioning as a portal gateway.
Supports only Layer 2 portal.

Combined authentication

Combined MAC authentication:
PSK+MAC authentication
MAC+portal authentication:
MAC authentication is used first. When MAC authentication fails, portal authentication is used.
This type of authentication applies only to centralized forwarding.

AAA

Local authentication/local accounts (MAC addresses and accounts)
RADIUS authentication
Multiple authentication servers:
Supports backup authentication servers.
Specifies authentication servers based on account.
Configures authentication servers based on account.
Binds user accounts to SSIDs.

Security isolation

Port-based isolation
User group-based isolation

WIDS

Rouge device scan, identification, defense, and countermeasures, which includes dynamic blacklist configuration and detection of rogue APs, STAs, and network attacks.

Authority control

ACL limit based on the following:
Port
User group
User

Other security features

SSID hiding
IP source guard:
Configures IP and MAC binding entries statically.
Generates IP and MAC binding entries dynamically.

WLAN user management specifications

Feature

Specifications

Address allocation of wireless users

Functions as a DHCP server to assign IP addresses to wireless users.

WLAN user management

Supports user blacklist and whitelist.
Controls the number of access users:
Based on APs
Based on SSIDs
Logs out users in any of the following ways:
Using RADIUS DM messages
Using commands
Supports various methods to view information:
Allows you to view the user status by specifying the user MAC address, AP ID, radio ID, or WLAN ID.
Displays the number of online users in an ESS, AP, or radio.
Collects packet statistics on air interface based on user.

WLAN user roaming

Supports intra-AC Layer 2 roaming.
Supports inter-VLAN Layer 3 roaming on an AC.
Supports fast key negotiation in 802.1x authentication.
Authenticates users who request to reassociate with the AC and rejects the requests of unauthorized users.
Delays clearing user information after a user goes offline so that the user can rapidly go online again.

User group management

Supports ACLs.
Supports user isolation:
Inter-group isolation
Intra-group isolation

 

Product Specification

Physical Specification

Item

Description

Dimensions (width x depth x height)

442 mm x 420 mm x 44.4 mm

Maximum power consumption

85 W

Weight

Net weight: 5.48 kg
Fully configured with 150 W power supplies: 7.16 kg
Fully configured with 500 W power supplies: 7.48 kg

Operating temperature

-5ºC to +50ºC

Relative humidity

5% RH to 95% RH, noncondensing

Operating altitude

150 W DC power supply: 0 m to 2000 m
Others: 0 m to 3000 m

AC input voltage

Rated voltage

100 V AC to 240 V AC, 50/60 Hz

Voltage range

90 V AC to 264 V AC, 47 Hz to 63 Hz

DC input voltage

Rated voltage

-48 V DC to -60 V DC

Voltage range

-36 V DC to -72 V DC

System Configuration

Item

Specifications

Processor

Dominant frequency: 1 GHz

Switching capacity

128 Gbit/s

Packet forwarding capacity

10 Gbit/s

DDR memory

4 GB

Flash memory

256 MB

Protocol and Management Capabilities

Parameter

Specifications

Number of managed APs

512/1024(The specification of 1024 APs will be implemented in 2014Q2)

Number of access users

Entire device: 10K
Single AP: a maximum of 256 (depending on the AP model)

Number of MAC address entries

16K

Number of VLANs

4K

Number of routing entries

10K

Number of ARP entries

8K

Number of multicast forwarding entries

4K

Number of DHCP IP address pools

128 IP address pools, each of which contains a maximum of 16K IP addresses

Number of local users

1000

Number of ACLs

8K

Number of ESSIDs

4K

User group management

128 user groups
Each user group can reference a maximum of eight ACLs.
Each user group can associate with a maximum of 128 ACL rules.

Wireless Networking Capabilities

Feature

Specifications

Networking between APs and ACs

APs and ACs can be connected through a Layer 2 or Layer 3 network.
APs can be directly connected to an AC.
APs are deployed on a private network, while ACs are deployed on the public network to implement NAT traversal.
ACs can be used for Layer 2 bridge forwarding or Layer 3 routing.

Forwarding mode

Direct forwarding (distributed forwarding or local forwarding)
Tunnel forwarding (centralized forwarding)
Centralized authentication and distributed forwarding
Before users are authenticated, tunnel forwarding is used. After users are authenticated, local forwarding is used.

Wireless networking mode

WDS bridging:
Point-to-point (P2P) wireless bridging
Point-to-multipoint (P2MP) wireless bridging
Automatic topology detection and loop prevention (STP) Wireless mesh network Access authentication for mesh devices Mesh routing algorithm Go-online without configuration

AC discovery

An AP can obtain the device's IP address in any of the following ways:

Static configuration

DHCP

DNS

The AC uses DHCP or DHCPv6 to allocate IP addresses to APs.

DHCP or DHCPv6 relay is supported.

On a Layer 2 network, APs can discover the AC by sending broadcast CAPWAP packets.

CAPWAP tunnel

Centralized CAPWAP

CAPWAP control tunnel and data tunnel (optional)

CAPWAP tunnel forwarding and direct forwarding in an extended service set (ESS)

Datagram Transport Layer Security (DTLS) encryption

Heartbeat detection and tunnel reconnection

Active and standby ACs

Enables and disables the switchback function.
Supports load balancing.
Supports 1+1 hot backup.
Supports N+1 backup.

For more details, please refer to  AC6605-26-PWR Access Controller Datasheet(PDF).

Deployment Scenarios

The AC6605-26-PWR is connected to an aggregation switch in chain or branched mode.

The AC6605-26-PWR processes both control flows and data flows. Management flows must be transmitted over Control And Provisioning of Wireless Access Points (CAPWAP) tunnels. Data flows can be transmitted over CAPWAP tunnels or not, as required.

The CAPWAP protocol defines how APs communicate with ACs and provides a general encapsulation and transmission mechanism for communication between APs and ACs. CAPWAP defines data tunnels and control tunnels.

Data tunnels encapsulate 802.11 data packets to be sent to the AC.

Control tunnels transmit control flows for remote AP configuration and WLAN management.

Two forwarding modes are available according to whether data flows are transmitted on CAPWAP tunnels:

Direct forwarding: is also called local or distributed forwarding.

Tunnel forwarding: is also called centralized forwarding. It is usually used to control wireless user traffic in a centralized manner.

You can select the chain or branched mode according to networking requirements. On the AC, you can configure direct forwarding for some APs and tunnel forwarding for other APs. In tunnel forwarding mode, all wireless user traffic is aggregated to an AC, which may create a switching bottleneck. Therefore, tunnel forwarding is seldom used on enterprise networks.

Chain Networking

In chain networking mode, APs or access switches are directly connected to the AC. The AC functions as both an AC and an aggregation switch to forward and process APs' data and management services.

In chain networking mode, the AC sets up CAPWAP tunnels with APs to configure and manage these APs over CAPWAP tunnels. Service data of wireless users can be forwarded between APs and the AC over CAPWAP data tunnels or be directly forwarded by APs.

In chain networking mode, direct forwarding is often used so that user service data can be forwarded on APs.

The AC functions as the DHCP server to allocate IP addresses to APs. APs obtain the IP address of the AC using the DNS function, DHCP Option 43 in DHCP packets, or Layer 2 discovery protocols, and then set up data tunnels with the AC.

Huawei AC6605 Chain Network Mode

In direct forwarding mode, only control flows are transmitted in CAPWAP tunnels, and data flows sent from APs are transparently transmitted to the upstream device by the AC, as shown in Figure. Data flows are identified by VLAN IDs.

When data flows are not transmitted in CAPWAP tunnels, configure management VLANs and data VLANs as follows:

On the AC and its upstream switches, configure an AC management VLAN to transmit control flows between the AC and the NMS.

On the switches between APs and the AC, configure AP management VLANs to transmit control flows between APs and the AC.

On all switches between APs and the BRAS, configure data VLANs to differentiate WLAN service flows.

The AC6605-26-PWR has a wired switching unit that provides powerful access, aggregation, and switching capabilities. In addition, the AC6605-26-PWR provides PoE+ power for 24 interfaces so that APs can directly connect to the AC. Direct forwarding is often used in chain networking mode. This networking mode simplifies the network architecture and applies to large-scale and centralized WLANs.

Branched Networking

In branched networking mode, the AC is connected to a network device (usually an aggregation switch) to manage APs.

The AC only manages APs. Management flows are transmitted in CAPWAP tunnels, and data flows are forwarded to the upper layer network by the aggregation switch and BRAS and do not pass through the AC.

Direct Forwarding

In direct forwarding mode, wireless user service data is translated from 802.3 packets into 802.11 packets, which are then forwarded by an uplink aggregation switch.

The branched networking mode is often used on enterprise networks. Wireless user service data does not need to be processed by an AC, eliminating the bandwidth bottleneck and facilitating the usage of existing security policies. Therefore, this networking mode is recommended.

Huawei AC6605 Branched networking

The AC only manages APs. All AP control flows must reach the AC.

The aggregation switch has a port to connect to the AC and functions as the DHCP server to allocate IP addresses to APs. APs obtain the IP address of the AC using the DNS function provided by the BRAS or DHCP Option 43 in DHCP packets.

Data flows from APs are forwarded by the Layer 2 switch, aggregation switch, and BRAS and do not pass through the AC.

Different VLANs are assigned to STAs with different service set identifiers (SSIDs). The Layer 2 switch and aggregation switch identify packets from these VLANs and forward these packets to the BRAS. The BRAS terminates packets from terminals, controls user access, and allocates IP addresses to users. After a user is authenticated by the BRAS, traffic from the user is forwarded to the Internet across the IP network.

Tunnel Forwarding

In tunnel forwarding mode, wireless user service data is transmitted between APs and ACs over CAPWAP tunnels.

In Figure, both management flows and data flows of APs are transmitted to the AC over CAPWAP tunnels, and then the AC transparently transmits these flows to the upstream device.

Tunnel forwarding is usually used to control wireless user traffic in a centralized manner. This forwarding mode facilitates device deployment and controls all wireless user data flows by aggregating traffic of all wireless users connected to APs to an AC through CAPWAP data tunnels.

Huawei AC6605 Tunnel Forwarding

In branched networking mode, the AC manages all the APs connected to the aggregation switch. This network topology applies to scenarios where APs are scattered across hot spots.

The branched networking mode requires only a small modification to the existing network, facilitating device deployment. You can select the direct forwarding or tunnel forwarding mode according to networking requirements. Direct forwarding is recommended to enterprise networks.

Wireless Distribution System

The 802.11 wireless technology has been widely used in home networks and enterprise networks. Users can easily access the Internet over WLANs. In this network application, APs must be connected to the existing wired network to provide network access services for wireless users. To expand the wireless coverage area, APs need to be connected using cables, switches, and power supplies. This increases network costs and prolongs network construction period. Wired deployment requirements may not be met in special circumstances. The Wireless Distribution System (WDS) or Wireless Mesh Network allows APs to be connected wirelessly, facilitating WLAN construction in a complex environment.

WDS

The WDS is a distribution system comprised of APs. The WDS connects to an AC on the network side, which is then connected to a network device such as a gateway or an aggregation switch. The WDS connects to a station (STA) or PC on the user side.

Huawei AC6605 WDS

On a WDS network, an AC manages the following devices:

Root AP: connects to an AC on the wired side, and functions as a WDS master to connect to trunk APs or leaf APs.

Trunk AP: functions as a WDS slave to connect to a root AP, connects to wired devices on the wired side, or functions as a WDS master to connect to leaf APs.

Leaf AP: functions as a WDS slave to connect to a root AP or trunk AP or connects to STAs on the wireless side.

The WDS networking can expand WLANs and applies to indoor wireless deployment scenarios.

Wireless Mesh Network

Compared with a traditional WLAN, a wireless mesh network (WMN) has the following advantages:

Fast deployment: Mesh nodes can be easily installed to construct a WMN in a short time, much shorter than the construction period of a traditional WLAN.

Dynamic coverage area expansion: As more mesh nodes are deployed on a WMN, the WMN coverage area can be rapidly expanded.

Robustness: A WMN is a peer-to-peer network that will not be affected by the failure of a single node. If a node fails, packets are forwarded to the destination node along other paths.

Flexible networking: An AP can join or leave a WMN easily, allowing for flexible networking.

Various application scenarios: Besides traditional WLAN scenarios such as enterprise networks, office networks, and campus networks, a WMN also applies to scenarios such as large-scale warehouses, docks, MANs, metro lines, and emergency communications.

Cost-effectiveness: Only MPPs need to connect to a wired network, which minimizes the dependency of a WMN on wired devices and saves costs in wired device purchasing and cable deployment.

Huawei AC6605 WMN

Nodes on a WMN can be classified into the following types based on their functions:

Mesh point (MP)

A mesh-capable node that uses IEEE 802.11 MAC and physical layer protocols for wireless communication. This node supports automatic topology discovery, automatic route discovery, and data packet forwarding.

Mesh portal point (MPP)

An MP that connects to a WMN or another type of network. This node has the portal function and enables mesh nodes to communicate with external networks.

On a WMN, MPs are fully meshed to establish an auto-configured, and self-healing backbone WMN, and MPPs with the gateway function provide connections to the Internet. An MP provides access services and connects a terminal to a WMN. A WMN uses special mesh routing protocols, which ensures high transmission quality. The WMN is applicable to scenarios that require high-bandwidth and highly-stable Internet connections.

Dual-AC Networking

To ensure uninterrupted service forwarding, enterprises that require high reliability use active and standby ACs for networking.

Dual-AC backup can be implemented in two modes:

HSB + dual-link backup: an AP establishes CAPWAP tunnels with both the active and standby ACs. The two ACs synchronize service information (such as NAC and WLAN service information) through the hot standby (HSB) function. When an AP is disconnected from the active AC, the AP notifies the standby AC of a switchover.

Huawei AC6605 Dual AC networking

HSB + VRRP: an AP obtains only the virtual IP address of both the active and standby ACs. The active AC backs up information including AP entries, CAPWAP link information, and user information on the standby AC. In this mode, the AP only detects the presence of one AC. The active/standby switchover is determined by the Virtual Router Redundancy Protocol (VRRP). Currently, this mode cannot be used in a VRRP multi-instance scenario.

Huawei AC6605 HSB VRRP