Step 5
(Optional) Run:
frequency
interval
The interval for automatically performing an NQA test is set. By default, no interval is set, and
only one test is performed.
Step 6
(Optional) Run:
probe-count
number
The number of probes to be sent each time is set for the NQA test instance. By default, three
probes are sent each time.
After probes are sent multiple times for the NQA test instance, you can estimate the network
quality more accurately based on the collected statistics.
Step 7
Run:
start
The NQA test instance is started.
Run one of the following commands in different situations:
l
To start an NQA test immediately, run the
start
now
[
end
{
at
[
yyyy
/
mm
/
dd
]
hh
:
mm
:
ss
|
delay
{
seconds
second
|
hh
:
mm
:
ss
} |
lifetime
{
seconds
second
|
hh
:
mm
:
ss
} } ] command.
l
To start an NQA test at a specified time, run the
start
at
[
yyyy
/
mm
/
dd
]
hh
:
mm
:
ss
[
end
{
at
[
yyyy
/
mm
/
dd
]
hh
:
mm
:
ss
|
delay
{
seconds
second
|
hh
:
mm
:
ss
} |
lifetime
{
seconds
second
|
hh
:
mm
:
ss
} } ] command.
l
To start an NQA test after a certain period of time, run the
start
delay
{
seconds
second
|
hh
:
mm
:
ss
} [
end
{
at
[
yyyy
/
mm
/
dd
]
hh
:
mm
:
ss
|
delay
{
seconds
second
|
hh
:
mm
:
ss
} |
lifetime
{
seconds
second
|
hh
:
mm
:
ss
} } ] command.
----End
2.6.3 Binding an IPv4 Static Route to an NQA Test Instance
If a static IPv4 route is associated with an NQA test instance, NQA tests the link status
periodically. After NQA detects a fault in the link related to the associated static route, the static
route is deleted and traffic diverts to another path.
Context
On a network with a simple topology, configuring static routes is usually adequate enough to
ensure the network is able to operate correctly. Static routes can also be configured on a router
that cannot run dynamic routing protocols to generate routes to the destination. Unlike dynamic
routing protocols, static routes do not have a dedicated detection mechanism. Static routes cannot
detect faults in the network, which means that traffic loss will likely occur at some point.
The NQA for static IPv4 routes feature allows static IPv4 routes to be associated with NQA test
instances. The ping function of NQA test instances is used to check the status of links through
which static routes pass. If a fault occurs in the link for a static route, the system deletes the static
route to force traffic transmitted based on this route to divert to another path.
Perform the following steps on the router that requires NQA for static IPv4 routes:
HUAWEI NetEngine80E/40E Router
Configuration Guide - IP Routing
2 IP Static Route Configuration
Issue 02 (2014-09-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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