Features in 281-01

 

 

 

17

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CR

Module

Level

Description

AR400

AR7x5

AR750S / AR770S

 

Rapier i

AT-8800

AT-8600

 

AT-8700XL

AT-8948 / x900-48

AT-9900

AT-9800

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CR00012613

Firewall

2

When the WAN load balancer was used with IP NAT (instead of firewall NAT), and

Y

-

Y

 

-

-

-

 

-

-

-

-

 

 

 

an FTP session was established to a server on the public network, the router did

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

not correctly establish a return session. This meant data was unable to flow

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

correctly back from the server, and the router rebooted.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

This issue has been resolved.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Note that the WAN load balancer is not designed for use with IP NAT, because IP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NATs are not associated with interfaces. Configurations that use an IP NAT cannot

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

vary the global IP address (the gblip parameter) based on the outgoing interface,

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

so the WAN load balancer sends all traffic out with the same source address.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Therefore, the return traffic probably comes back via the WAN load balancer

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

resource that is associated with the global IP. The impact is that the WAN load

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

balancer balances the outgoing traffic but not the return traffic.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

We recommend using firewall NAT instead of IP NAT with the WAN load balancer.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CR00012624

VRRP,

2

Under certain network conditions in which VRRP entities become temporarily

Y

Y

Y

 

Y

Y

Y

 

Y

Y

Y

Y

 

IP Gateway

 

unsynchronised, the router or switch could receive a gratuitous ARP from a self-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

elected VRRP master when the router or switch was still the master. This caused

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

the existing master to create an ARP entry that incorrectly redirected packets

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

towards the other VRRP entity even after the other entity had become a slave

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

again.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

This issue has been resolved. The router or switch no longer accepts gratuitous

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ARPs from other VRRP entities while it is still the Master.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CR00012683

Switch

2

After the AR770S rebooted, the Port Link/Activity and Duplex/Collision LEDs

-

-

Y

 

-

-

-

 

-

-

-

-

 

 

 

sometimes did not blink in response to activity and collisions, respectively.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

This issue has been resolved. The router detects the problem and recovers from

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

it, if possible. If it cannot recover from the problem, it generates a log message

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

of severity 6, module SWK, type REST, and subtype FAIL. The log message says

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

“An LED error has been detected, please power-cycle the device. If this message

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

appears again, contact your technical support representative for help.”

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Version 281-02

C613-10482-00 REV B

Page 16 Page 18
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Allied Telesis AR44xS manual CR00012613, CR00012624, ARPs from other Vrrp entities while it is still the Master, CR00012683
Page 16 Page 18

AR44xS, AR750S-DP specifications

The Allied Telesis AR750S-DP and AR44xS are robust and innovative networking solutions designed to meet the demands of modern enterprises. These devices are designed for performance, scalability, and flexibility, making them ideal for various applications, including data centers, enterprise campus networks, and service provider environments.

The AR750S-DP is a 10GbE (Gigabit Ethernet) routing platform that offers exceptional performance. It features a Dual Power supply option for added reliability, ensuring continuous network operations even in the event of a power failure. This router is equipped with a high-performance CPU and supports advanced routing protocols, making it suitable for both IPv4 and IPv6 environments. The device encompasses features like Quality of Service (QoS), which prioritizes critical applications and ensures optimal bandwidth allocation.

Alongside the AR750S-DP, the AR44xS series serves as a versatile edge router, offering similar performance characteristics. Designed for high-speed broadband access, the AR44xS is particularly effective in delivering reliable internet services. It comes equipped with advanced security features, including embedded firewalls and VPN support, enabling secure remote access and protecting sensitive information from potential threats.

Both models leverage Allied Telesis' innovative technology known as "Multi-layer Switching," which enhances the performance and efficiency of networks by allowing simultaneous data processing at various layers of the OSI model. Additionally, these devices support Layer 3 routing, enabling intelligent traffic management and optimizing data flow across the network.

The AR750S-DP and AR44xS also feature management capabilities that simplify network configuration and monitoring. With support for SNMP (Simple Network Management Protocol), network administrators can easily manage and diagnose network issues, ensuring high availability and performance.

Incorporating Advanced Layer 2 and Layer 3 features, both models facilitate seamless integration into existing network infrastructures, providing scalability that meets the growing demands of businesses. The user-friendly web interface simplifies setup and provides real-time monitoring tools that enhance operational efficiency.

In summary, the Allied Telesis AR750S-DP and AR44xS are advanced networking devices tailored for organizations seeking high-performance, reliable, and secure solutions. With cutting-edge features and comprehensive management capabilities, these routers cater to the diverse needs of modern connectivity, ensuring businesses can thrive in an increasingly digital world.
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