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ATM E3 PIC (M40e Router)

Image g001396.gif

Software release

  • JUNOS 5.4 and later


  • Four E3 ports
  • Power requirement: 0.43 A @ 48 V (20.8 W)
  • Conforms to ANSI T1.105-1991 and T1E1.2/93-020R1
  • Asynchronous Transfer Mode (ATM) standards compliant
  • Alarm and event counting and detection
  • Compatible with well-known ATM switches
  • ATM switch ID, which displays the switch IP address and local interface name of the adjacent Fore ATM switches

Hardware features

  • OAM fault management processes alarm indication signal (AIS) and remote defect indicator (RDI) cells
  • ASIC-based packet segmentation and reassembly (SAR) management and output port queuing
  • 16-MB SDRAM memory for ATM SAR
  • Packet buffering, Layer 2 parsing
  • Configurable framing options:
    • G.751 direct mapping
    • G.751 with PLCP encapsulation (default)
    • G.832 ATM direct mapping

Software features

  • Multiprotocol Label Switching (MPLS) circuit cross-connect (CCC) for leveraging ATM access networks
  • Support for user-configurable virtual circuits (VC) and virtual paths (VP)
  • ATM Inverse Address Resolution Protocol (ARP), which enables routers to automatically learn the IP address of the router on the far end of an ATM permanent virtual circuit (PVC)
  • Unspecified bit rate (UBR) traffic shaping
  • Fine-grained variable bit rate (VBR) traffic shaping
  • Outbound PIC queues cells on a per-VC basis
  • Encapsulations—AAL5 subnetwork attachment point (SNAP)

Cables and connectors

  • 10-ft (3.05-m) posilock SMB to BNC
  • Four pairs of RX and TX coaxial cables


One tricolor per port:

  • Off—Not enabled
  • Green—Online with no alarms or failures
  • Amber—Online with alarms for remote failures
  • Red—Active with a local alarm; router has detected a failure

Alarms, errors, and events

  • Alarm indication signal (AIS)
  • Frame Error
  • Line code violation
  • Local and remote loopback
  • Loss of signal (LOS)
  • Out of fFrame (OOF)
  • Yellow alarm

Related Topics

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