static-route if-match null tag(Remote backup service view)

Function

The static-route if-match null tag command binds a static route tag to the remote backup service (RBS) and configures a cost for the static route.

The undo static-route if-match null tag command restores the default configuration.

By default, no static route tag is bound to the RBS.

This command is supported only on the NetEngine 8000 F1A.

Format

static-route if-match null interface-number tag tag-num [ metric metric-num ] [ rui-slave ]

undo static-route if-match null interface-number tag tag-num [ metric metric-num ] [ rui-slave ]

Parameters

Parameter	Description	Value
tag tag-num	Specifies the static route tag to be bound to the RBS.	The value is an integer ranging from 1 to 4294967295.
metric metric-num	Specifies a cost for the static route.	The value is an integer ranging from 1 to 65535.
rui-slave	Configures the static route tag and cost for the backup device.	-
null interface-number	NULL interface number.	The value is an integer 0.

Views

Remote backup service view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
rui	write

Usage Guidelines

Usage Scenario

In a dual-device hot backup scenario, if IP addresses are allocated using a RADIUS server instead of an address pool, run the static-route if-match command to bind a static route tag to the RBS and specify a cost for the static route. If an NNI on the master device fails, the outbound interface of the static route can be directed to the protection tunnel to switch traffic to the backup device. This reduces the impact of the fault on user services.

Configuration Impact

This command must be run on both the master and backup devices. In addition, rui-slave must be configured on the backup device. Otherwise, traffic flaps between the two devices.

If metric <METRIC-NUM> is not configured, the default cost of the static route is used. If rui-slave is not configured, the cost is 10. If rui-slave is configured, the cost is 20.

If metric <METRIC-NUM> is configured, the cost configured on the master device must be less than that configured on the backup device, so that the route on the master device is preferentially selected.

If an NNI fails, 65535 is advertised as the cost of the static route.

Precautions

In VS mode, this command is supported only by the admin VS.

The static route tag to be bound to the RBS has been configured by running the ip route-static or ipv6 route-static command in the system view.

Example

# Bind NULL0's static route tag 10 to the RBS and set the cost of the static route to 100.

<HUAWEI> system-view
[~HUAWEI] remote-backup-service huawei
[*HUAWEI-rm-backup-srv-huawei] static-route if-match NULL 0 tag 10 metric 100