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JUNOS Services

A JUNOS software service consists of a variety of Layer 2 and Layer 3 services, including:

  • Multilink Point-to-Point Protocol (MLPPP)

  • Multilink Frame Relay (MLFR)

  • Compressed Real-Time Transport Protocol (CRTP)

  • Multiclass MLPPP

  • Stateful firewall

  • NAT

  • Intrusion detection service (IDS)

  • IPSec

  • Layer 2 Tunneling Protocol (L2TP)

  • Active monitoring (cflowd)

  • Tunnel services (Generic Routing Encapsulation [GRE], IP-IP, Physical Interface Module [PIM] register encapsulation)

  • Data link switching (DLSw)

In an M-series router, enabling these services will require an additional piece of hardware: a Physical Interface Card (PIC) for packet processing. A J-series router supports most of the features in the preceding list and performs the packet processing within the software, so no additional hardware is necessary. Depending on the type of service required and the size of the service, different PICs can be used. The current offerings include:


  

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