Software release

• Junos OS Release 6.1 and later

Description

• Two E3 ports
• Power requirement: 0.41 A @ 48 V (20 W)
• Intelligent queuing (IQ) PICs support fine-grained queuing per logical interface
• ATM standards compliant

Hardware features

• 16-MB SDRAM memory for ATM segmentation and reassembly (SAR)
• ATM switch ID
• Configurable framing options:
  • G.751 direct mapping
  • G.751 with PLCP encapsulation (default)
  • G.832 ATM direct mapping
• Internal and loop timing

Software features

• Per-virtual circuit (VC) and per-virtual path (VP) traffic shaping
• Unspecified bit rate (UBR) traffic shaping
• Fine-grained variable bit rate (VBR) traffic shaping
• Circuit cross-connect (CCC)
• 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)
• Simple Network Management Protocol (SNMP):
  • Management Information Base (MIB) 2 (RFC 1213)
  • ATM MIB (RFC 1695)
  • SONET MIB
• AAL5 encapsulations:
  • ATM-VC-MUX
  • ATM-NLPID
  • ATM-Cisco-LLPID
  • ATM-SNAP
  • ATM-CCC-VC-MUX

Cables and connectors

• 10 ft (3.05 m) posilock SMB to BNC (provided)
• Four pairs of Rx and Tx coaxial cables
• SONET/SDH OC3/STM1 fixed transceiver:
  • Multimode
  • Intermediate reach (IR-1)

  Optical interface specifications—see SONET/SDH OC3/STM1 Optical Interface Specifications

LEDs

One tricolor per port:

• Off—Not enabled
• Green—Online with no alarms or failures
• Yellow—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 frame (OOF)
• Yellow alarm