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–
manual
: Initiates a manual APS request in an APS group, that is, manually
switches traffic to the protection link.
NOTE
The
lockout
,
force
, and
manual
commands have descending priorities. When using an
aps
switch-command
command instance, ensure that the priority of the switch command is higher
than that of an existing switch command. Otherwise, the command to be used does not take
effect.
If the
force
or
manual
parameter is configured, the
display this
command does not display
the relevant configuration. You can run the
display aps group
group-id
command to view the
configuration.
----End
3.5 Configuration Examples
This section provides configuration examples of APS. Each configuration example consists of
the networking requirements, configuration precautions, configuration roadmap, configuration
procedures, and configuration files.
Context
NOTE
This document takes interface numbers and link types of the NE40E-X8 as an example. In working
situations, the actual interface numbers and link types may be different from those used in this document.
3.5.1 Example for Configuring TDM on the CPOS interfaces
Configured with APS
This section gives a configuration example of APS-based TDM on a CPOS interface. A
networking diagram is shown to demonstrate the configuration procedure. The configuration
example includes the networking requirements, as well as the configuration roadmap, procedure,
and files.
Networking Requirements
TDMoPSN service can enable mobile operators to receive transparent transmission of 2G
services between BTSs and BSCs in the same city through TDM links in a Metro Ethernet (ME)
network. This simple and cost-reducing service can be essential, because usually, it requires one
to three E1 interfaces on a BTS to connect to a BSC on a 2G RAN, and some mobile operators
do not own fixed network infrastructure and have to rent E1 lines at high prices.
As shown in
, it is required that the BTS and PE1 be connected through two E1 links.
The BSC and PE2 should be connected through the CPOS interface, which are configured with
APS so as to increase reliability of data. The encapsulation protocol on the channelized serial
interface of the E1 links needs to be configured as TDM. Finally, a PW needs to be set up between
PE1 and PE2 to transparently transmit TDM cells.
HUAWEI NetEngine80E/40E Router
Configuration Guide - Reliability
3 APS Configuration
Issue 02 (2014-09-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
57