Datasheet

6
Forwarding and Switch Interface Boards
M7i, M10i CFEB
Enhanced Compact Forwarding Engine Board
I-Chip ASIC for 15 Mpps packet lookup, parsing, prioritizing, and
queuing of packets
1 GHz CPU and supporting logic
1280 MB DDR SDRAM for packets storage
32 MB RLDRAM for forwarding tables associated with ASICs
100 ms of delay-bandwidth buffering
512 KB boot flash EPROM (programmable on the board)
M7i
10 Gbps throughput rate (5 Gbps full duplex)
Optional Adaptive Services Module or Multiservice Module
M10i
16 Gbps throughput rate (8 Gbps full duplex)
Compact Forwarding Engine Board
Internet Processor II-based ASIC for 16 Mpps packet lookup
266 MHz CPU and supporting logic
Two enhanced I/O Manager ASICs for parsing, prioritizing, and
queuing of packets
4 MB parity-protected SSRAM per I/O Manager ASIC
128 MB or 256 MB of packets storage
8 MB SSRAM for forwarding tables associated with ASICs
200 ms of delay-bandwidth buffering
Two 512 KB boot flash EPROM (programmable on the board)
M7i
10 Gbps throughput rate (4.2 Gbps full duplex)
Optional Adaptive Services Module
M10i
16 Gbps throughput rate (8 Gbps full duplex)
M320 SIB
Switch Interface Board for Interconnecting FPCs
Four required per M320 chassis for full bandwidth; all
four active
80 Gbps throughput per SIB, 320 Gbps throughput per system
Processor subsystem 300 MHz CPU
System controller
256 MB DRAM
FPC
M120
4 Gbps full-duplex throughput per M120-FPC1
10 Gbps full-duplex throughput per M120-FPC2
10 Gbps full-duplex throughput per M120-FPC3
10 Gbps full-duplex throughput per M120-cFPC
Layer 2/Layer 3 Packet Processing ASICs
Switch Interface ASICs
I-Chip on the Packet Forwarding Engine
Memory subsystem, including queuing and memory interface
ASICs
Processor subsystem
M320
4 Gbps full-duplex throughput per M320-FPC1
16 Gbps full-duplex throughput per M320-FPC2
20 Gbps full-duplex throughput per M320-FPC3
Layer 2/Layer 3 Packet Processing ASICs
Switch Interface ASICs
Internet Processor ASICs
Memory subsystem, including queuing and memory interface
ASICs
Processor subsystem
Routing Engine
400 MHz (M7i, M10i)
400 MHz Intel Celeron processor with default 256 KB
Level 2 cache
768 MB SDRAM
Optional 1 GB compact flash drive for primary storage (needs to
be ordered separately)
20 GB IDE hard drive for secondary storage
Fast Ethernet RJ-45 port for out-of-band management
Two RS-232 (DB-9 connector) asynchronous serial ports for
console and remote management
Optional PCMCIA card adapter and 1 GB compact flash card for
media upgrades
ROUTER M7I M10I M120 M320
Environment
Temperature 32° to 104° F
0° to 40° C
32° to 104° F
0° to 40° C
32° to 104° F
0° to 40° C
32° to 104° F
0° to 40° C
Relative humidity 5% to 90%
noncondensing humidity
5% to 90%
noncondensing humidity
5% to 90%
noncondensing humidity
5% to 90%
noncondensing humidity
Maximum altitude No performance
degradation to
10,000  / 3,048 m
No performance
degradation to
10,000  / 3,048 m
No performance
degradation to
10,000  / 3,048 m
No performance
degradation to
10,000  / 3,048 m
*Flexible PIC Concentrator
**Physical Interface Card
M7i
M10i
Density
M320
10 Gig
Uplinks
Operational Simplicity
with Junos OS
M120
Gbps
320
120
40
20
10
5
Low Medium/High High
M Series Specifications (continued)