Cisco 2-Port Gigabit Ethernet OC-12 Packet-over-SONET Backcards

For the Cisco MGX 8800/8900 Series Route Processor Module XF

The Cisco® 2-Port Gigabit Ethernet and 2-Port OC-12 Packet-over-SONET (POS) backcards for the Cisco MGX 8800/8900 Series Route Processor Module (RPM) XF (part numbers MGX-2GE and MGX-2OC12POS) are designed for use with the Cisco MGX® 8800 and MGX 8900 Series wide-area edge switches. These backcards are for use with the Cisco MGX 8800/8900 Series MGX-RPM-XF-512 to provide up to OC-24 of bandwidth for IP services in the new world of data networking.

Figure 1. Cisco 2-Port Gigabit Ethernet and 2-Port OC-12 POS Backcards for the Cisco MGX 8800/890 Series RPM-XF

TECHNICAL SPECIFICATIONS

Hardware Overview

• Single-height, 2-port OC-12 POS backcard, with hot-pluggable Small Form-Factor Pluggable Modules (SFP) to provide single and multimode interfaces

• Single-height, 2-port Gigabit Ethernet backcard, with hot-pluggable SFP modules to provide a variety of Ethernet physical interfaces

Primary Features

• Efficient, high-performance bandwidth utilization-Two full-duplex 1-Gbps channels provide the bandwidth required to meet the most demanding user requirements, such as faster access to Web pages, real-time video, large file transfers, and other data-intensive applications.

• Optimized for IP-based Differentiated Services-The Cisco Gigabit Ethernet solution supports Internet-based multiservice networks based on IP. The Cisco Gigabit Ethernet implementation places the IP layer directly above the SONET layer and eliminates the overhead required to run IP over ATM over SONET.

• Configurable clock sources-The Cisco 2-port Gigabit Ethernet backcard can provide the clock source for the Gigabit Ethernet link and also retrieve the clock source from the network.

• Configurable loopbacks for troubleshooting-The Cisco 2-port Gigabit Ethernet backcard can configure both an internal loopback (loops outbound traffic back toward the front card) and a network loopback (loops inbound traffic back toward the network).

• SFP hot-swapping and security-The Cisco 2-port Gigabit Ethernet backcard is hot-swappable and can be removed and replaced even when the interfaces are not shut down.

• Card online-insertion-and-removal (OIR) support-The Cisco 2-port Gigabit Ethernet backcard can detect the insertion and removal the Cisco 2-port Gigabit Ethernet backcard.

• MAC address filtering-Address filtering can indicate when to accept or discard traffic based on a match for unicast or multicast entries.

• Layer 2 features-The Cisco 2-port Gigabit Ethernet backcard supports Ethernet 2.0, IEEE 802.3 Logical Link Control (LLC) Protocol, IEEE 802.3 Subnetwork Access Protocol (SNAP) with LLC, and 802.1q encapsulation support for IEEE VLANs, 802.3z-compliant

• Link management (autonegotiation)-The Cisco 2-port Gigabit Ethernet backcard allows devices at either end of the link segment to negotiate common data service functions.

• Flow control between gigabit links-The Cisco 2-port Gigabit Ethernet backcard can implement Layer 2 flow control using 802.3 pause frames.

• Interface MAC address assignment

• Initializes the Gigabit Ethernet driver subsystem at Cisco IOS Software boot time

• Initializes and configures the Gigabit Ethernet backcard

• Downloads the Gigabit Ethernet backcard firmware images

• Collects statistics for the command-line interface (CLI) and Simple Network Management Protocol (SNMP)

• Manages alarm and trap events after insertion, removal, and hot-swap

• Manages interface status and configuration changes

• Processes events and alarms

• Monitors data-path hardware failures

• Controls front- and backcard port and card status LEDs

• Efficient, high-performance bandwidth utilization-OC-12 performance of 622 Mbps provides the bandwidth required to meet the most demanding user requirements, such as faster access to Web pages, real-time video, large file transfers, and other data-intensive applications. The Cisco POS implementation offers a 25 to 30 percent gain in efficiency over multiservice IP traffic now running over ATM networks. It achieves this efficiency gain by eliminating the overhead required in ATM implementations, such as ATM cell header, IP-over-ATM encapsulation, and segmentation and reassembly (SAR).

• Optimized for IP-based Differentiated Services-The Cisco POS solution supports Internet-based multiservice networks based on IP. The Cisco POS implementation places the IP layer directly above the SONET layer and eliminates the overhead required to run IP over ATM over SONET.

• Configurable clock sources-The Cisco 2-port OC-12 POS backcard can provide the clock source for the POS link and also retrieve the clock source from the network.

• Configurable loopbacks for troubleshooting-The Cisco 2-port OC-12 POS backcard can configure both an internal loopback (loops outbound traffic back toward the front card) and a network loopback (loops inbound traffic back toward the network).

• Alarm processing-The Cisco 2-port OC-12 POS backcard implements SONET alarms that are fully Bellcore GR-253-compliant.

• SFP hot-swapping and security-The Cisco 2-port OC-12 POS backcard is hot-swappable and can be removed and replaced even when the interfaces are not shut down.

• Card OIR support-The Cisco 2-port OC-12 POS backcard has support to detect the insertion and removal of the 2-port OC-12 POS backcard.

• Initializes the POS driver subsystem at Cisco IOS Software boot time

• Initializes and configures the POS backcard

• Downloads the POS backcard firmware images

• Collects statistics for the CLI and SNMP

• Manages alarm and trap events after insertion, removal, and hot-swap

• Manages interface status and configuration changes

• Processes events and alarms

• Monitors data-path hardware failures

• Controls front- and backcard port and card status LEDs

Table 1. Technical Specifications of Cisco 2-Port Backcards

ORDERING INFORMATION

Table 2. Cross Reference of SFP Transceivers to Backcards 

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