5. Advanced Operations and Maintenance Management

The MRV OA2000 Series offers advanced operations and maintenance capabilities:

• Remote OAM (IPLESS) - Loop Testing/Power Failure Alarms/Subscriber Port Monitoring.

• SNMP-based Network Management using Mega Vision Pro Service Network Management System.

OA2000 L2/4 Series Optical Ethernet Service System

MRV’s OA2000 FTTx System combines the technological excellence of metro area Ethernet technology and an Optical Ethernet Service system that offers

the most effective use of fiber optic resources. The OA2000 L2/4 Series provides L2/4 traffic aggregation for your broadband access network, linking the

Customer Edge on one side and the Backbone Network on the other.The OA2000 L2/4 Series guarantees the most efficient use of fiber optic facilities and

the most cost-effective use of space. All of this is supported by MRV’s world-class network management technology.

Advanced Operation and Maintenance Capabilities

MRV’s OA2000 L2/4 Series Optical Ethernet Service System features comprehensive Network Management and Maintenance capabilities. Real time

data (power failure alarms and subscriber port status information) is gathered from the subscriber site and the customer interface and is forwarded to

the monitoring equipment and the element management system using the Simple Network Management Protocol (SNMP). MRV’s unique MegaVision

Network Management System provides the most advanced and informative information management features to cost-effectively manage your network

in today’s competitive environment.

Loop Tests

The unique loop test capabilities of the OA2000 L2/4 Series provides testing functions for cable facilities and customer premise equipment, making fault

isolation and identification quick and easy. Loop test information is received from the subscriber-side branch unit (OA201) and collected at the access unit

(OA2000) to be sent to the monitoring equipment or network management system.

Subscriber Port-Link Status Monitoring

The subscriber port link status information is monitored by the element management system using TELNET or SNMP.

Power Failure Alarm Monitoring

Power failure alarms make it easy to localize a fault and distinguish between cable faults and local power failures.

Network Bandwidth Control through Advanced QOS and Rate Limiting

The OA2000 switch prioritizes each packet based on the required level of service using four priority queues with strict or Weighted Round Robin Queuing.

It uses IEEE 802.1p to prioritize incoming traffic based on input from the end-station application.

These functions can be used to provide independent priorities for delay-sensitive data and best-effort data.

The OA2000 Ethernet fiber aggregator also supports several common methods of prioritizing layer 3/4 traffic to meet application requirements.

Traffic can be prioritized based on the priority bits in the IP frame’s Type of Service (ToS) octet.When these services are enabled, the Priorities are mapped

to a Class of Service value by the switch. After which, the traffic is sent to the corresponding output queue.

The Rate Limiting feature controls the maximum rate for traffic transmitted or received on an interface. Rate limiting is configured on interfaces at the

edge of a network to limit traffic into or out of the network. Traffic that falls within the rate limit is transmitted, while packets that exceed the acceptable

amount of traffic are dropped.

Fault-Tolerance and Reliable Networking

Spanning tree is a link management protocol that provides path redundancy while preventing undesirable loops in the network. The OA2000 switch

performs the IEEE802.1D (Spanning Tree) protocol, the IEEE802.1s*(Multiple Spanning Tree), and the IEEE802.1w (Rapid Spanning Tree) protocol for Fault-

Tolerance. The OA2000 also provides redundant power supply hook-ups to enable simultaneous connections to two independent power sources to

ensure the system reliability.

Enhanced Security Features

The Optical Access Series switches offer enhanced data security through a wide range of security features that protect network management and

administrative traffic, secure the network from unauthorized users, provide granular levels of network access to users and track where users are located.

Secure Shell (SSH), Secure Telnet (v1.5/2.0) port based security, Simple Network Management Protocol version 3 (SNMPv3*) and network management

information, thereby, protecting it from tampering or eavesdropping. Remote Access Dial-In User Service (RADIUS) authentication enables centralized

access control of switches and restricts unauthorized users from altering the configurations. Alternatively, a local username and password database can

be configured on the switch itself.Multi levels of authorization on the switch console and two levels on the web-based management interface provide the

ability to give different levels of configuration capabilities to different administrators.

Port security and 802.1x provide the ability to keep unauthorized users from accessing the network. Port security limits access on an Ethernet port

based on the MAC address of the device that is connected to it. It can also be used to limit the total number of devices plugged into a switch port,

thereby, reducing the risks of rogue wireless access points or hubs. 802.1x can be used to authenticate users based on username and password (or other

credentials) via a centralized RADIUS server.This is particularly useful for a mobile workforce because the authentication will be executed regardless of

where the user connects to the network.

ACL’s restrict access to sensitive portions of the network by denying packets based on source and destination MAC addresses, IP addresses, or TCP/UDP

ports. ACL lookups are done in hardware; therefore, forwarding and routing performance are not compromised when implementing ACL-based security

in the network.The Optical Access Series switches offer VLAN, router and port-based ACL’s.

Network Availability

The OA2000 provides efficient use of resources in bandwidth-hungry applications. It supports the Internet Group Management Protocol (IGMPv1/2)

snooping to identify multicast traffic and it ensures an efficient utilization of the bandwidth. The OA2000 is ideal for server-to-server backups.. An

advanced feature of the OA2000 includes support for VLAN’s, trunking and packet priority.