CHAPTER 1 E-Series Overview
ERX-310 Router
The ERX-310 router is a low-end platform that supports all of the same services as the ERX-7xx/14xx models, but with smaller capacity and scaling capabilities. Like the ERX-7xx/14xx models, the ERX-310 router uses the same software architecture, providing a single IP entry point into the network with the same IP-based protocols and services that are available on other E-series routers. The ERX-310 router is designed to be used as a small distributed POP router as well as a high-end CPE router.
The ERX-310 router is a three-slot chassis with a midplane architecture. One slot supports one nonredundant 10-Gbps SRP module, while the other two slots support line modules. The router supports existing E-series ASIC-based line modules (except the OC48/STM16 line module).
Note: The 10-Gbps SRP module used in the ERX-310 router is different from the 10-Gbps SRP module used in the ERX-7xx/14xx models. See section SRP Module, later in this chapter, for more information.
The ERX-310 router is available in either redundant AC- or DC-powered models.
Line modules
PCMCIA slot
| Fan tray | |
| SRP module | |
| AC power | AC power |
| supply A |
| supply B |
| |
Figure 1-8ERX-310 router, front view (AC model)
Note: DC model has blank filler panels in power supply slots.
