Riverstone Networks 9000 manual Highest availability for the enterprise

Alcatel OmniSwitch 9000

Highest availability for the enterprise

The OmniSwitch 9000s carry on Alcatel’s tradition of providing the highest availability possible to support the demands of IP communications and mission-critical applications, all at an enterprise price. Providing the highest availability to the enterprise ensures that users have constant access to resources and services at all times. To ensure the highest levels of availability, the OmniSwitch 9000s provide:

•Distributed architecture, where each NI autonomously supports functions, such as source learning, Spanning Tree functions, and L2/L3 forwarding

•Redundant modules and sub-components (CMMs1, fans and PSUs)

•Hot swappable modules and sub-components (NIs, CMMs1, fan trays, PSUs, SFPs and XFPs)

•Hitless loading of optional software (routing / security), without re-booting

•Image rollback to automatically re-load previous configurations and software versions

OmniSwitch 9700

Locally Processed

Requests

CPU

STP BPDU

ARP Request

X

Routing Update

Management Access

NI1

Centrally Processed

Requests

Virtual Switching Fabric	CMM Monitoring
	& Sychronization

	CPU		CP			CPU
				U
		X				X
			X				Active Gigabit
							Ethernet Connection
CMM A		CMM B			NI 8
							Standby Gigabit
Active Control		Standby Control
							Ethernet Connection

Principle of operation for distributed intelligence

Resiliency – maximized network uptime

Network resiliency is critical to providing network availability. The OS9000s offer a superior architecture with no single point of failure and a sub-second fail-over in its redundant configuration. If there is a CMM failure the OmniSwitch 9700 and 9800 are able to provide continuous operation with no loss of connections when configured with dual CMMs. Existing L2/L3 traffic, including voice conversations, will continue seamlessly without interruption.

For single CMM configurations, network resiliency is achieved through switch redundancy, network path redundancy, and the L2/L3 protocols for smart use of the switch and path redundancy. In this configuration, the OS9600 has the best price / performance ratios.

1Requires dual CMMs in either the OS9700 or the OS9800

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