Help us improve your experience.

Let us know what you think.

Do you have time for a two-minute survey?

Navigation  Back up to About Overview 

LM-4 Line Module

Module labelES2 4G LM
Number of ports
  • Not applicable
Software release
  • First supported: 7.0.1
Description
  • 176 W maximum
  • Acts as frame forwarding engines for the physical interfaces
  • Responsible for processing data traffic
  • Pairs with IOAs to process data from different types of network connections
Type
  • FFA ASIC
Capability
  • Supports a line rate of 128–byte packets on IOAs
  • The 100–Gbps switch fabric allocates 3.4 Gbps of overall bandwidth to each regular line module slot and 10 Gbps of overall bandwidth to each of the turbo slots (slot 2 and slot 4).
  • The 320–Gbps switch fabric allocates 10 Gbps of overall bandwidth to each line module slot. The line interface on the ES2 4G LM when installed in a 320 Gbps fabric configuration is 3.9 Gbps; you can achieve this rate with random packet sizes in the range 64–1518 bytes or a mixture of packet sizes that represent Internet mix traffic (IMIX).
  • An ES2 4G LM with an ES2-S1 Service IOA (dedicated tunnel-server port) can receive traffic ranging from 3.5 Gbps (with 256 byte packets) to 3.8 Gbps (1024 to 1492 byte packets) for bidirectional L2TP LNS throughput. The throughput might be less with packets of smaller sizes.
  • A shared tunnel-server port on an ES2 4G LM can handle a maximum of 0.8 to 0.9 Gbps throughput for tunnel services, depending on the packet sizes. The throughput might be less with packets of smaller sizes.
  • See JunosE System Basics Configuration Guide, Chapter 6, Managing Modules for more information.
Software features
  • Not applicable
Model compatibility
  • E320 router
  • E120 router
Line module compatibility
  • Not applicable
SRP module compatibility
  • SRP-100
  • SRP-120
  • SRP-320
Line module redundancy compatibility
  • Yes (Redundancy IOA must be installed in either slot 0 or slot 11)
  • Can only back up another ES2 4G LM
Port redundancy support
  • Not applicable
Cables and connectors
  • Not applicable
LEDsWhen lit, LED indicates:
  • OK (green)—Self-test passed
  • FAIL (red)—Failure detected
  • ONLINE (green)—Online with no alarms or errors
  • REDUN (green)—Redundant card available
Alarms, errors, and events
  • See Monitoring Modules in JunosE System Basics Configuration Guide, Chapter 6, Managing Modules.

Modified: 2015-07-23