Huawei ME60 Series, Описание аппаратуры

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ME60
Hardware Description
1 Hardware Description
Issue 01 (2018-05-07) 24
BO
M Module Descript
ion
ME60-X
3 ME60-X
8 ME60-X
16 ME60-X
8A ME60-X
16A
565
34 SUID070 Integrate
d
Versatile
Service
Unit(VS
UI-160-E
)
1.6 Product Signal Flow Overview
This section describes how component units on a device process and forward signal flows.
This section demonstrates how data packets enter a device and how the device forwards the
data packets.
1.6.1 General Service Process Overview
Concept Analogy
A router is a device that searches for paths to transmit IP packets on the Internet. The router
functions as a post office. IP packets are to the router as mails to the post office. The core
function of a router is addressing and forwarding.
A post office must meet the following conditions before mails can be properly delivered:

Has a mail collection center that collects all mails.

Has a mail query and distribution center that queries addresses of the mails and
distributes these mails to their addresses.
A mail collection center, similar to the data plane on a router, delivers mails. A mail query and
distribution center, similar to the control plane on the router, searches for paths and forwards
mails along the paths to various addresses.
Logical Architecture
A router consists of the data and control planes, which implements addressing and forwarding.
In addition, the router has a monitoring plane, which helps ensure stable addressing and
forwarding performance. The three planes provide the following functions:

Data plane: Similar to a mail collection center, the data plane provides interfaces that
send and receive packets on a router, whereas processing the packets at a high speed and
switching data packets inside the router. The data plane encapsulates packets,
decapsulates packets, processes Ethernet, Multiprotocol Label Switching (MPLS), IPv4,
and IPv6 packets, implements quality of service (QoS), schedules packets, and provides
various statistics.

Control plane: Similar to the mail query and distribution center, the control plane is the
central nervous system on a router. It uses system buses to control system units and
provide various functions. These functions allow the router to calculate routes, generate
LSPs, build multicast, unicast, and MPLS forwarding tables, processes protocols and