Metrodata Limited

MetroCONNECT MC12000 chassis supporting Multiple Ethernet Demarcation Devices

This application shows how a MetroCONNECT MC12000 chassis with a variety of I/O modules fitted can deliver Ethernet services over a wide range of last mile services. The MetroCONNECT solution offers interface conversion or LAN extension as well as Ethernet service demarcation, with comprehensive remote management of the standalone Ethernet Demarcation Devices (or EDD's, otherwise known as Network Interface Devices or NID's) on the customer site using 802.3ah OAM or IP management. Support for 10M, 100M and Gigabit Ethernet applications as well as Jumbo frames comes as standard across this product range.

MetroCONNECT offers a high density Carrier Ethernet Service Delivery solution with fibre or copper distribution from the core network to customer sites. MetroCONNECT operates in provider mode generating and terminating OAM frames according to IEEE 802.3ah. With muliple access links deployed resilience can be supported via either G.7042 LCAS, RSTP or 802.3ad link aggregation. In this way MetroCONNECT enables maximum efficiency of use of the core network infrastructure, along with maximum flexibility of service delivery to the customer, whilst retaining management visibility right up to the customer demarcation point.

The MC12000 is a 4U, 19” rack based chassis unit supporting up to 2 power supply modules (PSUs) and has 12 I/O slots giving a port density of up to 24 EDDs per 4U of rack space. Spare network interface device modules can be resident in the chassis ready for immediate additional functionality or to provide ‘in situ’ spares. The “hot swap” capability of modules and power supplies eases the provisioning of new services and the maintenance of existing services.

A wide variety of last mile service delivery types can be supported including:

• Ethernet over copper or fibre via the FCC9000 I/O module and the FCM8000 or FCM9000 standalone units
  
• 1,4 or 8 fractional E1 or T1 services via the WCC1100, WCC1400 and WCC1800 I/O modules and the WCM1100, WCM1400, WCM1800 and WCM1820 standalone units
• 1 or 2 framed E3 or DS3 services via the WCC3100 and WCC3200 I/O modules and the WCM3100, WCM3200 and WCM3400 standalone units
• SDH STM-1 or Sonet OC-3 services via the WCC5100 I/O module and the WCM5100 standalone unit
• Serial or HSSI services via the WCC_Serial and LHC1000 I/O modules and the WCM_Serial and LHM1000 standalone units

For example:

• The FCC9000 I/O module is used with the standalone FCM9000 deployed at the customer site to deliver a 10/100/1000baseT or fibre Ethernet service over a fibre WAN connection, with up to 24 individual Ethernet services being delivered via a single MC12000 MetroCONNECT chassis, alternatively
  
• The WCC1100 I/O module is used with the standalone WCM1100 deployed at the customer site to delivery a 10/100/1000baseT or fibre Ethernet service over a fractional E1 or T1 service, with up to 12 individual Ethernet services being delivered via a single MC12000 MetroCONNECT chassis.
  

The MC12000 only requires a single PSU to support a full compliment of cards but for increased resiliency redundant PSUs can be used. The PSUs are load sharing when used in the optional 1+1 redundant configuration. For maximum MTBF (mean time between failures) the -48V DC PSU modules may be used. Typical operating power consumption is less than 75 watts.

The MC12000 system management module manages each of the I/O modules and has the ability to extend management to remote EDD devices, and beyond, via IP or OAM services. The I/O modules optionally generate and terminate OAM frames according to IEEE 802.3ah. Each I/O module supports standalone operation with defaults configured using simple bit switches for ease of installation, which can then be overriden by the management software.

Management of the MC12000 is either via the console port, or the management Ethernet port using SNMP, Telnet or Web interfaces. SNMP traps are generated based on configurable alarms generated for any of the I/O modules. TFTP download of software and configuration is also supported. To further future proof the MC12000 system, remote hardware upgrade of CPLD firmware is included. Management access has password protection whether via the console, Telnet or Web interfaces. Performance statistics are available for all ports with data collection in 15 minute segments for a 24 hour period. For security, the MC12000 supports TACACS+ for access control.

Planned features include: Fibre link aggregation IEEE 802.3ad LACP, 802.1ag and V.1731 OAM support, SNMP version 2 and 3, and SSH for secure access.

MetroCONNECT Managed Ethernet Demarcation Chassis

Whilst the MetroCONNECT product range uses industry standard user exchangeable SFPs, it is recommended that these are purchased from Metrodata to guarantee their specification and compatibilty with each other.

The following specifications relate to the MC12000 Chassis without any interface modules fitted. Each individual module also has its own specifications, check each module for further information.

Ethernet Media Conversion

LAN Extension

Common Services Modules

If you require another SFP or user I/O module or one currently under development please contact our sales team with your requirements who will be happy to help.