l Unspecified bit rate (UBR): UBR services support non-real-time applications, such as file
transferring and Email. These applications have low requirements on delay or delay
changes.
l Variable bit rate (VBR): VBR services can be further classified into real-time variable bit
rate (rt-VBR) services and non-real-time variable bit rate (nrt-VBR) services. Both rt-VBR
and nrt-VBR services support changeable (burst) cell transmitting rate at the source end.
The rt-VBR service type mainly applies to voice and video services.
l Constant bit rate (CBR): The CBR service type usually applies to real-time services that
have high requirements on delay changes. Such services include voice, video, and circuit
emulation services.
Data Plan
Table 4-3 lists the data plan for configuring the ATM PWE3.
Table 4-3 Key data plan for configuring the ATM PWE3
Item Data Remarks
MPLS LSR ID: 5.5.5.5 The LSR ID must be the same as the
IP address of the loopback interface
on the device. To differentiate
between the LSR ID and other IP
addresses, set the LSR ID to a
special unique value so that it
identifies the device intuitively.
The MPLS feature must be enabled
for:
1. Global
2. L2VPN
3. VLAN and VLAN interfaces
VLAN
Smart VLAN: 300
IP address of the VLAN interface:
192.168.1.20
Upstream port: 0/19/1
VLAN and VLAN interfaces must
be configured to enable MPLS
forwarding.
PW parameters Peer IP address: 7.7.7.7
PW type: ATM Nto1 VCC
Control word: enabled
(Optional) Maximum number of
concatenated ATM cells: 4
(Optional) Maximum encapsulation
delay of ATM cells: 10 ms
PW type: static
The control word adds control
information into service packets to
rearrange the packets and to prevent
packet disorder. ATM services must
use the control word since they have
high requirements on time sequence.
Cell concatenation enables a PW
packet to carry multiple ATM cells.
In this way, the transmission
efficiency of ATM cells over a PSN
network and bandwidth utilization
are improved.
SmartAX MA5600T/MA5603T/MA5608T Multi-service
Access Module
Commissioning and Configuration Guide 4 Configuration Example of the Private Line Service
Issue 01 (2014-04-30) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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