Features Carrier-Class
Availability
The ME60 chassis is designed on the basis
of the carrier-class telecom architecture.
It can be fixed in an N68-22 (the ME60-8
can also be fixed in N68-18) cabinet or
a 19” standard cabinet. All the LPUs and
fans can be plugged in or out without having
to power off the device.
The key components of the ME60, such as
MPU, SFU, fans and management bus, support
redundancy backup, auto-swapping, hot-plug
in and out, and automatic recovery. Other
components, such as memory, power supply
module, interfaces, and boards, provide
multiple protection and alarming methods
to ensure the smooth running of the ME60.
The ME60 uses the forwarding mechanism based
on distributed hardware, and separates the
data channel from the control channel. Thus
the control channel is not impacted when
the traffic is heavy.
The ME60 is designed with software reliability.
The applications can be dynamically loaded,
selected, upgraded, and restored. The configuration
files can be remotely backed up and loaded.
The data on the active and standby units
can be backed up in real time and switched
smoothly, and thus the software environment
is stable. The ME60 can also monitor the
faults on the software. After finding a
fault, it removes fault and records the
exceptional event.
With a device monitoring system, the ME60
can manage, monitor and maintain LPUs, fans,
LCD and power supply modules through the
MPU.
The ME60 supports non-stop forwarding (NSF)
and graceful restart (GR) . Therefore, when
an error occurs to the control plane, the
data plane still forwards packets without
losing any packets. The ME60 also supports
hitless switchover to provide non-stop services.
The ME60 supports cross-board and cross-device
backup. If the line card fails, the online
users are switched to the backup line card
or the backup device. Thus the services
are not interrupted.
For the firewall and SBC services, the
ME60 supports the hot backup of the service
boards, and thus the service reliability
is ensured.
Multi-service Provision
As a multi-service control gateway, the
ME60 has a powerful multi-service integration
capability. It provides solutions to MPLS
L2VPN/PWE3, MPLS VPLS, MPLS L3VPN, and leased
line connection between commercial users.
These VPN solutions are extensible and easy-to-deploy.
In addition, the ME60 can map the access
terminal to the MPLS L3VPN, thus providing
more choices in wholesale service.
The multi-service integration provided
by the ME60 is aware of the terminals. That
is, the ME60 can enforce the policies based
on terminal.
User and Service Management
The ME60 can manage both users and services.
Users can access the network through Ethernet,
xDSL, WLAN, WiMAX or PON.
The following authentication methods
are available with ME60:
* PPP authentication
* 802.1X authentication
* Web authentication
* Binding authentication
* Fast authentication
The following accounting methods
are available with ME60:
* None accounting
* RADIUS accounting
* HWTACACS (Huawei Terminal Access Controller
Access Control System)
The ME60 also supports multiple service
functions, such as captive portal, wholesale
service, multiservice selection, and multicast
duplication.
IPTV Solution
The ME60 provides a perfect IPTV solution.
By using the powerful terminal management
capability, the ME60 separates the IPTV
terminals. Thus, the terminals are secure
and the QoS is ensured.
The ME60 can copy multicast packets based
on ports and VLANs. A dedicated multicast
copy engine can speed up channel switchover
and reduce the delay, which bring perfect
service experience to IPTV users.
The ME60 can also copy multicast packets
based on sessions. In the networks where
the Digital Subscriber Line Access Multiplexer
(DSLAM) cannot copy packets for users, the
ME60 copies the packets for PPPoE users
directly. Therefore, carriers need not upgrade
the DSLAM and the earlier investment on
the IPTV service is reduced.
In addition, the ME60 can grant the multicast
rights to users. That is, the ME60 defines
which channels a user can use. Then, the
ME60 copies only the packets of the authorized
channels. This function can simplify the
service deployment and reduce the service
operation cost. Besides, by increasing the
priority of the multicast traffic, the ME60
prevents the multicast service from being
interrupted in the case of network congestion.
NGN Gateway
As a multi-service control gateway, the
ME60 also acts as a high-performance gateway
of the NGN service by using the SBC service.
The ME60 is a proxy for the NGN signaling
and media stream. Through the SBC, the ME60
provides security protection for the devices
and terminals in the NGN core network, and
QoS for the VoIP service.
At the convergence layer of the MAN, the
ME60 uses the SBC to ensure the security
and QoS of the NGN, and simplify the networking.
Thus the network deployment is simple.
The SBC service uses a 10G forwarding engine,
which ensures the efficient forwarding and
avoids the bottleneck in the network.
Security
The ME60 ensures the security of
devices by:
* Separating the data plane from the control
plane
* Authorizing users hierarchically
* Controlling the overloading
* Avoiding the DoS attack
* Encrypting protocol packets
In addition, the ME60 ensures the
security of access terminals by:
* Authenticating the terminals
* Identifying and isolating the fraudulent
terminals
* Controlling the access
* Limiting the access rate
The ME60 uses a high-performance stateful
firewall to ensure the security of a network.
The firewall of the ME60 supports Application
Specific Packet Filter (ASPF).
The ME60 also enables attack tracing through
logs.
H-QoS Support
Complying with the QoS scheduling model
defined in DSL TR-059, the ME60 provides
QoS scheduling by using a traffic management
(TM) chip.
The ME60 can:
* Provide five-level QoS scheduling capability.
* Support the QoS of the access network,
thus avoiding network congestion.
* Provide QoS scheduling for each terminal
and session.
The policy is separated from behavior,
so the QoS is configured flexibly and deployed
conveniently. Moreover, the TM is separated
from the packet forwarding engine (PFE),
so the QoS processing does not decrease
the forwarding speed.
The ME60 provides QoS scheduling for the
IP and MPLS networks. To meet the QoS demands
of the new services such as IPTV and Metro
Ethernet, the ME60 performs traffic classification
and congestion management on multicast flows
and layer 2 information. Thus the quality
of new services can be ensured.
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