Juniper MIC-3D-8CHDS3-E3-B 数据表

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The MX2010 uses dual, redundant Routing Engines, initially 
supporting the RE-S-1800x4 for high-performance routing and 
control that is upgradable in a hitless manner in the event of a 
failure, and as future Routing Engines are become available.
Air intake is in the front of the system and flows through the back 
where air is exhausted. The MX2010 has fully redundant fan trays 
which provide cooling for all of the line cards, switch fabrics, and 
Routing Engines housed in the front of the system.
Industry-Leading Full Featured Edge Router 
Density 
MX2020 and MX2010 3D Universal Edge Routers offer the 
industry’s highest scalability, highest initial capacity, and highest 
density where full featured, full service Edge capabilities are 
required. Operators can deploy initial densities of up to (640) 
10GbE Ethernet ports, (80) 40GbE Ethernet ports, or (40) 
100GbE Ethernet ports in a single rack with full Edge service 
support. Additionally, operators can enjoy a full set of line-card 
offerings enabling rapid deployment of a new platform for any 
type of connectivity. Support for existing MX Series family MPCs 
also delivers on unmatched investment protection for network 
operators everywhere.
Table 1. Initial Maximum Ethernet Interface Densities for 
the MX2020 and MX2010
MX2020
MX2010
1GbE
800
400
10GbE
640
320
40GbE
80
40
100GbE
40
20
MX2020 and MX2010 Boards and Components 
Switch Fabric Board (SFB)
SFBs are the cards that form the central switching fabric for 
the MX2020 and MX2010 routers. They deploy an active-active 
switching model that is highly scalable, highly resilient, and 
provides for hitless, graceful degradation in the unlikely event of 
a board failure. 8 SFBs (7 + 1 redundant) are installed vertically 
into the front of the chassis in the area between the i/O slots. 
These connect to the upper board area, the lower board area, and 
backplanes. To ensure optimal air flow and thermal performance, 
impedance panels are used in all empty SFB slots.
Control Board and Routing Engine (CB-RE)
The MX2020 and MX2010 routers deploy 1+1 redundant CB-
REs, which provide all routing protocol processing as well as the 
software processes that control the router’s interfaces, the chassis 
components, system management, and user access to the router. 
These routing and software processes run on top of a kernel that 
interacts with the Packet Forwarding Engine (PFE). The MX2020 
and MX2010 CB-REs provide control plane functions and run the 
64-bit version of Junos OS. Software processes that run on the 
Routing Engine maintain the routing tables, manage the routing 
protocols used on the router, control the router interfaces, control 
some chassis components, and provide the interface for system 
management and user access to the router. Routing Engines 
also communicate with MPCs via dedicated high bandwidth 
management channels, providing a clear distinction between the 
control and forwarding planes.
Modular Port Concentrator (MPC)
MPCs leverage the Junos Trio chipset to deliver the industry’s 
highest Ethernet densities, as well as the flexibility of modular 
interface cards (ATM/Sonet/Ethernet) across the MX Series 
portfolio. These advanced capabilities allow customers to flexibly 
mix and match interfaces to create service-specific and “pay as 
you grow” configurations. The MPC houses the PFEs to deliver 
comprehensive Layer 3 routing (iPv4 and iPv6), MPLS, and Layer 2 
switching. These MPCs also support inline services and advanced 
hierarchical quality of service (HQoS) per MX Series slot. 
For more details on MPCs, please visit 
MPC Adaptor Card 
All Trio chipset-based MPCs, including MPC1, MPC2, MPC3, MPC-3D, 
and MPC4, are usable on the MX2020 and MX2010 routers, providing 
our customers full investment protection. The native slot size on 
the MX2020 and MX2010 has been designed to be wider in order 
to provide optimal air flow and to maximize interface densities. An 
adaptor card has been created to house existing MPC cards, enabling 
rapid deployment of a full set of interface types and accelerating 
time to revenue for operators. No configuration is required on the 
adapter card, and adapter cards will be visible in the inventory of the 
system from the command line.
Figure 2: MX2020 and MX2010 MPC adaptor card 
As the industry’s only Universal Edge, the MX Series family of 
products is uniquely equipped to help service providers evolve to a 
truly converged network model.
The Junos OS Advantage
Service providers realize significant operational and economic 
benefits from Juniper’s unique approach to its operating system. 
Unlike other network operating systems that splinter into many 
different programs and images joined solely by a common brand, 
Junos OS has remained a single, cohesive system throughout 
its lifecycle. With a single Junos OS and a single release cycle, 
operators benefit from reduced time and effort to deploy their 
network infrastructure, a more stable process for the addition of 
new functionality, and a modular architecture.