Lucent Technologies P332MF manual Radius Security, Port Redundancy, Intermodule Redundancy

Chapter 1 Overview

Multicast filtering functions may be added to the Layer 2 switches to avoid sending Multicast packets where they are not required. Layer 2 switches capable of Multicast filtering send the Multicast packets only to ports that connect members of that Multicast group. This is typically based on IGMP snooping, GMRP or CGMP.

Note: To operate IP Multicast filtering with IGMP snooping, Hardware Ver. C/S 2.0 or higher is mandatory.

Radius Security

The Remote Authentication Dial-In User Service (RADIUS) is an IETF standard (RFC 2138) client/server security protocol. Security and login information is stored in a central location known as the RADIUS server. RADIUS clients such as the Cajun P330, communicate with the RADIUS server to authenticate users.

All transactions between the RADIUS client and server are authenticated throught the use of a “shared secret” which is not sent over the network. The shared secret is an authentication password configured on both the RADIUS client and its RADIUS servers. The shared secret is stored as clear text in the client’s file on the RADIUS server, and in the non-volatile memory of the Cajun P330. In addition, user passwords are sent between the client and server are encrypted for increased security.

Port Redundancy

Redundancy can be implemented between any two ports in the same stack at the link level. You can also assign redundancy between any two LAGs in the stack or between a LAG and a port. One port or LAG is defined as the primary port, and the other as the secondary port. In case the primary port link fails, the secondary port takes over.

Intermodule Redundancy

Intermodule redundancy includes all Port Redundancy functionality. Intermodule redundancy maintains port integrity even when the primary port link fails as the result of a failure of the module. If the module on which the primary port in an Intermodule Port Redundancy is powered down or removed from the device, the secondary port in the Intermodule Port Redundancy takes over. Only one module per stack must be set for Intermodule Port Redundancy.

Stack Redundancy

In the unlikely event that a Cajun P330 switch or Octaplane link should fail, stack integrity is maintained. The broken link is bypassed and data transmission

Cajun P332MF User’s Guide 3