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M5
M10 M20 M40
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M5 -
M10 Internet
Backbone Routers
The M5 and M10 Internet
backbone routers deliver high-performance and
highly flexible interfaces in a space- and power-efficient
design. These routers are designed using the same
architecture, ASICs, and JUNOS Internet software as the already proven M-series
Internet backbone routers. This Internet-tested
core technology is now available at your network
edge, along with value-added services, such as
packet filtering and sampling.
The oversized forwarding performance of the Internet
Processor II ASIC provides
wire-speed forwarding with plenty of headroom.
In fact, the M5 and M10 routers forward packets
at an aggregate throughput rate of 5+ Gbps and
10+ Gbps, respectively.
The M5 and M10 platforms are ideal for a wide
range of applications, such as high-speed access,
peering, hosting, and high-end customer premise
equipment (CPE) environments. The ability to connect
a wide range of high-performance interfaces from
T1 and E1 through OC-48c/STM-16 ensures you can
easily and cost efficiently scale the network.
Additionally, the ASIC-based rate limiting, filtering,
and sampling features enable you to easily scale
value-added services, providing a full set of
tools with which to manage larger networks at
higher bandwidths. Whats more, the M5 and M10
pack all of this performance with features in
three rack units (5.25 in / 13.33 cm).
The
M5 and M10 compact design offers tremendous performance
and port density where space and power are a premium.
ASIC-based packet processing and forwarding across
all interfaces enable you to successfully expand
networks while offering new, differentiated services.
Their proven software and services are common across
all other Juniper Networks® M-series routers. M5 and M10 advantages are many.
- High
port density and flexibility
- Wire-rate
raw forwarding performance
- Rich,
predictable ASIC-based packet processing, including
filtering, sampling, and rate limiting on all
inbound and outbound interfaces
- Compact
design with minimal power consumption
- Robust,
Internet-scale BGP support
- Flexible
JUNOS policy language
- Reliable,
performance-based 802.1Q VLAN and VRRP support
Internet Backbone Routers 
Foundation
for the New IP Infrastructure The M20
Internet backbone router is designed specifically
for the
specialized needs of high-growth Internet backbone
providers. It features market-leading packet-forwarding
performance, unparalleled port density and flexibility,
and best-in-class Internet software. The router
delivers the bandwidth required to grow backbones
to OC-48/STM-16 speeds, while also providing flexible
MPLS traffic engineering tools to ensure greater
control over traffic and to
increase bandwidth efficiency.
The
M20 router supports 4 FPC slots that can
accommodate up to 16 PICs. The M20 also includes
a System and Switch Board (SSB) that houses the
Internet Processor ASIC, an Intel-based Routing
Engine (including a fixed flash drive, an IDE
hard drive, and a removable PC flash card drive),
redundant cooling fans, and two, redundant, load-sharing
AC or DC power supplies. It ships with full documentation
(CD-ROM).

Internet
Backbone Routers

Foundation for the New M40 IP
Infrastructure
Internet backbone router is designed specifically
for the specialized needs of high-growth Internet
backbone providers. It features market-leading
packet-forwarding performance, unparalleled port
density and flexibility, and best-in-class Internet
software. The router delivers the bandwidth required
to grow backbones to OC-48/STM-16 speeds, while
also providing flexible MPLS traffic engineering
tools to ensure greater control over traffic and
to increase bandwidth efficiency.
The
M40 router supports 8 FPC slots that can accommodate
up to 32 PICs. The M40 also includes a System
Control Board (SCB) that houses the Internet Processor
ASIC, an Intel-based Routing Engine (including
a fixed flash drive, an IDE hard drive, and a
removable LS 120 floppy drive), redundant cooling
fans, and two, redundant, load-sharing AC or DC
power supplies. It ships with full documentation
(CD-ROM).
The
JUNOS policy language provides a rich set of route
filtering tools for flexible and accurate configurations.
It is easily adaptable to many applications since
it is simple, consistent, and highly structured.
You can test the policy configurations before
committing them to a live network, thereby avoiding
costly design and configuration errors. Once you
commit the configuration, the JUNOS operating
system updates only those prefixes and neighbors
that are affected. In case a configuration is
unstable, the JUNOS software supports the ability
to roll back to a previous, stable configuration.
| Performance
and Reliability |
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- Forwards
packets at wire rate independently of
packet size.
- Performance
scales well with large, complex forwarding
tables.
- Availability
and high performance under all network
conditions, including denial-of-service
attacks.
- Performance
maintained with value-added services,
such as CoS.
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| Scalability |
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- Efficiently
performs route calculations in large-scale
environments with numerous routing neighbors.
- Scales
to support large numbers of routing table
entries or MPLS labels without adversely
affecting forwarding performance.
- OSPF
and IS-IS IGP designed to scale networks
to meet explosive demands.
- For
MPLS, provides rapid signaling rates for
optimal setup and recovery following a
failure.
- Offers
a fine level of control over the paths
that traffic takes through the network.
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| Control |
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- Uses
MPLS for traffic engineering and multiservice
integration for a service-enabled backbone.
- JUNOS
BGP4 and policy implementations provide
extensive flexibility and control over
peering and route advertisements.
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| Density |
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- Market-leading
port density and flexibility.
- Performs
at wire-rate speed for DS-3 up to OC-48/STM-16
circuits.
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Enhanced VRRP monitors WAN circuits
connected to the default WAN router and switches
to a backup router in case of failure. This ability
to have more than a single path to the outside
world is particularly beneficial for hosting sites.

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