Product Overview

The PM5422 META 20G is a feature-rich, high capacity, single chip solution that provides two universal 10 Gbps interfaces for Service Provider Routers, Carrier Ethernet Switches, Enterprise WAN, and Packet Optical Transport Platforms (P-OTPs). Designed with flexibility in mind, the META 20G offers the industry's first truly universal solution for 10 Gbps interfaces. Each 10 Gbps port may be configured to carry 10GE-LAN, 10GE-WAN, OTU2, or OC-192c/STM-64c (Packet over SONET/SDH) rate signals. The META 20G provides an array of packet mapping options needed by Router and Carrier Ethernet Switch line cards. The META 20G supports GFP multiplexing of up to 64 Ethernet (VLAN tagged and non-tagged) and IP/MPLS data streams into an OTU2. 10GE-LAN/WAN may also be mapped into an OTU2 in accordance with ITU G.709/G.sup43. Dual 10GE MAC/PCS and HDLC/PPP processors deliver a future-proof, line-card solution. The META 20G provides OEMs with an industry leading solution for Carrier Ethernet applications. Packet-based timing distribution via Synchronous Ethernet and IEEE 1588v2 (Precision Timing Protocol) is provided, along with 802.3ah Link OAM. Integrated support of these features enables the widespread adoption of Carrier Ethernet.

  • Dramatic Reduction in Capital and Operating Expenditure:
    • Universal 10G ports enables a single line card to service multiple line-card applications, reducing development and inventory costs for equipment manufacturers and service providers
    • OTN's Simplified Operation, Administration, and Maintenance (OAM) reduces the operational network cost
  • Carrier Ethernet Ready
    • Robust timing recovery and distribution with integrated SyncE and IEEE 1588v2/PTP timing support
    • Integrated support for IEEE 802.3ah Link OAM
  • Optimal Footprint and System Design Flexibility
    • Integrated Carrier Ethernet features eliminate the need for external processors
    • Universal port flexibility reduces power and space consumption versus comparable multi-device solutions
    • Single 155.52 MHz clock operation reduces BOM costs
    • Glueless interconnect to system side next generation packet platforms via Interlaken, XAUI, and extended XAUI as well as high-density line side XFP and SFP+(limiting) optics modules
Universal Port Flexibility
  • Dual 10 Gbps line interfaces independently configurable for OTU2, 10GE-LAN, 10GE-WAN, or SONET/SDH OC-192c/STM-64c
  • Glueless interface to XFP or SFP+ (Limiting) optics modules
OTN Subsystem
  • OTU2 framer
  • ITU-T G.709, ITU-T G.798 and ITU-T G.975 compliance
  • Flexible OTU, ODU and OPU overhead/data processing and frame alignment
  • Up to six levels of Tandem Connection Monitoring (TCM)
  • Independent performance counters for the accumulation of BIP-8 BEI and other error conditions with optional interrupts
  • Access to full overhead via internal registers and PCIe accessible RAM
Flexible Packet Mapping into OTN and SONET/SDH
  • Maps a wide variety of protocols into OTN and SONET/SDH
  • Encapsulates packet streams into ITU-T G.7041 GFP-F, HDLC, LAPS or PPP
  • Supports GFP multiplexing of data streams into ODU2
  • Includes 10GE mapping into OTN, compliant with ITU G.Sup43 6.1, 6.2, 7.1, 7.2 and 7.3
Ethernet Subsystem
  • Integrated IEEE 802.3 compliant media access controllers (MAC)
  • Integrated 10GE WAN Interface sublayer (WIS) framing and descrambling
  • 64B/66B physical coding sub-layer (PCS) for 10GE
  • Lossless IEEE 802.3 local flow-control with integrated packet buffers
  • Comprehensive per-port Ethernet statistics
  • Frame delineation and generation with configurable IPG, preamble, and CRC
  • Transparent transmission of VLAN tagged Ethernet frames
  • Frame sizes of 64 bytes to 9.6 Kbytes
  • Dynamic programmable depth full-packet store-and-forward buffers for burst tolerance and rate adaptation
  • Transmit and receive of IEEE 802.3ah Link OAM, LACP, and Management VLAN messages
  • Ethernet management port allows external processing of LACP PDUs, Management VLAN, or OAM packets
  • On-chip packet buffer
Ethernet Timing Synchronization
  • Performs packet-based timing recovery and distribution as well as time-of-day (TOD) recovery and distribution
  • Implements per-port Ethernet Link OAM & Timing using an integrated 32-bit MIPS4K CPU
  • Implements firmware-based link OAM defined by IEEE 802.3ah
  • Contains per-port Synchronous Ethernet & Precision Timing Protocol (PTP) IEEE 1588v2 protocols
GFP and HDLC/PPP Packet Processors
  • Two integrated GFP-F processors, each supporting 64 channels
  • Two channels of HDLC/PPP/LAPS processing
  • GFP multiplexing support, allowing multiple packet flows such as IP or MPLS to be mapped into the same ODU2
  • GFP frame filtering with configurable disposition
  • Fully programmable GFP and HDLC/PPP header generation
  • Flexible insertion and extraction of GFP client management frames and PPP Control Frames. In addition supports flow-through of PPP Control Frames to the Packet Interface
Packet Interface
  • Interlaken v1.1 interface
  • XAUI interfaces
SONET/SDH Framing and Mapping Support
  • OC-192c SONET and STM-64 AU-4-64c SDH framing
  • High-order pointer and overhead processing
PCI Express Microprocessor Interface
  • PCIe version 1.1 compliant

Typical Applications include:

  • Metro and Core Router Multi-Protocol Line cards
  • Datacenter Switch uplinks
  • Layer 2 Packet OTPs
  • xPON OLT interfaces
  • DSLAM transport cards


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Product Brief
      Version Issue Date
Locked PDF Document PM5422 META 20G Product Brief [386 KB] PMC-2081489 3 2012-03-21
White Papers
      Version Issue Date
  PDF Document Enabling OTN Switching over Packet/Cell Fabrics [181 KB] PMC-2114338 1 2011-12-16
Locked PDF Document OTN Convergence White Paper [1.51 MB] PMC-2110752 1 2011-05-13
      Version Issue Date
Locked Compressed Document PM5422 META 20G 672 FCBGA Cad Symbols and Footprints - Cadence [271 KB] PMC-2100054 1 2010-02-03