Software release
- JUNOS 4.3 and later
Description
- Four DS3 ports
- Power requirement: 0.39 A @ 48 V (19 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:
- C-bit with ATM direct mapping
- C-bit with PLCP framing (default)
- M23 ATM direct mapping
- M23 with PLCP framing
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
LEDs 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)
- Far-end Block Error (FEBE)
- Frame Error
- Idle code
- Idle received
- Local and remote loopback
- Loss of Signal (LoS)
- Out of Frame (OoF)
- Path parity error
- Yellow alarm
