if-match port

Function

The if-match port command configures a filtering rule based on the port number.

The undo if-match port command deletes the filtering rule based on the port number.

By default, no filtering rule based on the port number is configured.

Format

if-match port { greater-than | less-than | equal } port

if-match port greater-than port less-than upper-port-value

undo if-match port

undo if-match port greater-than port less-than upper-port-value

undo if-match port { greater-than | less-than | equal } port

Parameters

Parameter	Description	Value
greater-than	Indicates that the port number is greater than the specified one.	-
less-than	Indicates that the port number is smaller than the specified one.	-
equal	Indicates that the port number is equal to the specified one.	-
port	Specifies the port number.	The value is an integer ranging from 0 to 65535.
upper-port-value	Specifies the upper limit of a port number.	The value is an integer ranging from 0 to 65535.

Views

Flow-Route IPv6 VPN instance view, Flow-Route VPN instance view, Flow-Route-IPv6 view, Flow-Route view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
flow-route	write

Usage Guidelines

Usage Scenario

The if-match port command is used to configure a filtering rule based on the port number for a BGP (IPv6) Flow Specification route or BGP (IPv6) VPN Flow Specification route. The traffic behavior specified in the apply clause applies to the traffic whose source or destination port number matches the specified port number.

Prerequisites

A static BGP (IPv6) Flow Specification route or BGP (IPv6) VPN Flow Specification route has been created using the flow-route command in the system view.

Precautions

Make sure that the port number is within the range, because if the port number is beyond the range, protocol packets sent or received by the port cannot be forwarded.

A maximum of five filtering rules based on the port number can be configured for a BGP Flow Specification route.

Example

# Configure a filtering rule that is based on a port number range for the static BGP Flow Specification route Rule1.

<HUAWEI> system-view
[~HUAWEI] flow-route Rule1 vpn-instance va
[*HUAWEI-flow-route-va] if-match port greater-than 16 less-than 53

# Configure a filtering rule that is based on the port number of 179 for the static BGP IPv6 Flow Specification route Rule 1.

<HUAWEI> system-view
[~HUAWEI] flow-route Rule1 ipv6
[*HUAWEI-flow-route-ipv6] if-match port equal 179

# Configure a filtering rule that is based on the port number of 179 for the static BGP Flow Specification route Rule 1.

<HUAWEI> system-view
[~HUAWEI] flow-route Rule1
[*HUAWEI-flow-route] if-match port equal 179