08-Layer 3—IP Routing Command References

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08-Policy-based routing commands
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08-Policy-based routing commands 160.63 KB

Policy-based routing commands

 

Certain routers do not support SRv6 TE policies because they do not support segment routing. For more information about SRv6 TE policies, see Segment Routing Command Reference.

apply access-vpn

Use apply access-vpn to specify the forwarding tables that can be used for the matching packets.

Use undo apply access-vpn to remove the specified forwarding tables.

Syntax

apply access-vpn { public | vpn-instance vpn-instance-name&<1-4> }

undo apply access-vpn { public | vpn-instance [ vpn-instance-name&<1-4> ] }

Default

The device forwards matching packets by using the forwarding table for the network from which the packets are received.

Views

Policy node view

Predefined user roles

network-admin

Parameters

public: Specifies the forwarding table for the public network.

vpn-instance: Specifies the forwarding table for the specified MPLS L3VPN instances.

vpn-instance-name&<1-4>: Specifies a space-separated list of up to four VPN instance names. A VPN instance name is a case-sensitive string of 1 to 31 characters. The specified VPN instance must already exist.

Usage guidelines

Use this command only in special scenarios that require sending packets received from one network to another network, for example, from a VPN to the public network, or from one VPN to another VPN.

You can repeat this command to specify the forwarding tables for the public network and VPN instances. The device forwards the matching packets by using the first available forwarding table selected in the order in which they are specified.

If you specify the vpn-instance keyword without specifying any VPN instances when you execute the undo form of this command, all the VPN instances are removed from the policy node.

After all the forwarding tables on the policy node are removed, the default forwarding behavior restores.

Examples

# Specify the VPN 1 and VPN 2 forwarding tables on node 10. In this example, VPN 1 and VPN 2 already exist.

<Sysname> system-view

[Sysname] policy-based-route policy1 permit node 10

[Sysname-pbr-policy1-10] apply access-vpn vpn-instance vpn1 vpn2

# Specify the public network forwarding table on node 10.

<Sysname> system-view

[Sysname] policy-based-route policy1 permit node 10

[Sysname-pbr-policy1-10] apply access-vpn public

Related commands

apply remark-vpn

apply continue

Use apply continue to compare packets with the next policy node upon failure on the current node.

Use undo apply continue to restore the default.

Syntax

apply continue

undo apply continue

Default

PBR does not compare packets with the next policy node upon failure on the current node.

Views

Policy node view

Predefined user roles

network-admin

Usage guidelines

This command takes effect only when the match mode of the node is permit.

This command applies when either of the following conditions exist:

·     None of the following clauses is configured for packet forwarding:

¡     apply access-vpn

¡     apply next-hop

¡     apply output-interface

¡     apply default-next-hop

¡     apply default-output-interface

·     A clause listed above is configured, but it has become invalid. Then, a routing table lookup also fails for the matching packet.

 

NOTE:

A clause might become invalid because the specified next hop is unreachable, packets cannot be forwarded in the specified VPN instance, or the specified output interface is down.

Examples

# Compare with the next policy node upon failure on the current node.

<Sysname> system-view

[Sysname] policy-based-route aa permit node 11

[Sysname-pbr-aa-11] apply continue

apply default-gateway

Use apply default-gateway to specify the default next hop addresses as the gateway addresses.

Use undo apply default-gateway to remove the configuration.

Syntax

apply default-gateway { interface-type interface-number [ track track-entry-number ] }&<1-n>

undo apply default-gateway [ { interface-type interface-number }&<1-n> ]

Default

The gateway addresses are not specified as the default next hop addresses.

Views

Policy node view

Predefined user roles

network-admin

Parameters

interface-type interface-number: Specifies an interface that obtains the gateway address by its type and number.

track track-entry-number: Specifies a track entry by its number in the range of 1 to 1024.

&<1-n>: Indicates that the argument before it can be entered up to n times.

Usage guidelines

After you configure this command, PBR uses the gateway addresses obtained by the specified interfaces as the default next hop addresses for forwarding matching packets. When the default gateway addresses change, the device automatically updates the default next hop addresses. If the interfaces fail to obtain any gateway addresses or the gateway addresses are invalid, the command does not take effect.

You can configure multiple interfaces in one command line or by executing this command multiple times. The gateway addresses obtained by the interfaces back up one another. The first reachable gateway next hop address selected according to configuration order will be used to forward matching packets.

If you specify an interface, the undo form of this command removes the gateway address obtained by the interface. If you do not specify any interfaces, the undo form of this command removes all gateway addresses used as default next hop addresses.

Examples

# Specify the default next hop address as the gateway address obtained by interface GigabitEthernet 1/0/1.

<Sysname> system-view

[Sysname] policy-based-route aa permit node 11

[Sysname-pbr-aa-11] apply default-gateway gigabitethernet 1/0/1

apply default-next-hop

Use apply default-next-hop to set default next hops.

Use undo apply default-next-hop to remove default next hops.

Syntax

apply default-next-hop [ vpn-instance vpn-instance-name | inbound-vpn ] { ip-address [ direct ] [ track track-entry-number ] }&<1-4>

undo apply default-next-hop [ [ vpn-instance vpn-instance-name | inbound-vpn ] ip-address&<1-4> ]

Default

No default next hops are set.

Views

Policy node view

Predefined user roles

network-admin

Parameters

vpn-instance vpn-instance-name: Specifies an MPLS L3VPN instance by its name, a case-sensitive string of 1 to 31 characters. The specified VPN instance must already exist.

inbound-vpn: Specifies the VPN instance where the inbound interface belongs.

ip-address: Specifies the IP address of a default next hop. If you do not specify the vpn-instance vpn-instance-name option or the inbound-vpn keyword, the default next hop belongs to the public network.

direct: Specifies a directly connected default next hop.

track track-entry-number: Specifies a track entry by its number in the range of 1 to 1024.

&<1-4>: Indicates that you can specify up to four default next hops, each of which can be associated with a track entry.

Usage guidelines

You can specify multiple default next hops for backup or load sharing in one command line or by executing this command multiple times.

With a default next hop specified, the undo apply default-next-hop command removes the default next hop.

Without any default next hop specified, the undo apply default-next-hop command removes all default next hops.

Examples

# Set a directly-connected default next hop of 1.1.1.1.

<Sysname> system-view

[Sysname] policy-based-route aa permit node 11

[Sysname-pbr-aa-11] apply default-next-hop 1.1.1.1 direct

Related commands

apply loadshare

apply default-output-interface

Use apply default-output-interface to set default output interfaces.

Use undo apply default-output-interface to remove default output interfaces.

Syntax

apply default-output-interface { interface-type interface-number [ track track-entry-number ] }&<1-4>

undo apply default-output-interface [ { interface-type interface-number }&<1-4> ]

Default

No default output interfaces are set.

Views

Policy node view

Predefined user roles

network-admin

Parameters

interface-type interface-number: Specifies an interface by its type and number.

track track-entry-number: Specifies a track entry by its number in the range of 1 to 1024.

&<1-4>: Indicates that you can specify up to four interfaces, each of which can be associated with a track entry.

Usage guidelines

You can specify multiple default output interfaces for backup or load sharing in one command line or by executing this command multiple times.

The default output interface must be P2P type. Using a non-P2P default output interface can result in forwarding failures when the interface has multiple next hops. Non-P2P interfaces include broadcast and non-broadcast multi-access (NBMA) interfaces such as Ethernet and virtual-template interfaces. In NBMA networks, packets are sent in unicast.

With a default output interface specified, the undo apply default-output-interface command removes the default output interface.

Without any default output interface specified, the undo apply default-output-interface command removes all default output interfaces.

Examples

# Specify GigabitEthernet 1/0/1 as the default output interface for IP packets.

<Sysname> system-view

[Sysname] policy-based-route aa permit node 11

[Sysname-pbr-aa-11] apply default-output-interface gigabitethernet 1/0/1

Related commands

apply loadshare

apply default-srv6-policy

Use apply default-srv6-policy to set default SRv6 TE policies.

Use undo apply default-srv6-policy to remove default SRv6 TE policies.

Syntax

apply default-srv6-policy { endpoint color [ { sid | vpnsid } sid ] }&<1-n>

undo apply default-srv6-policy [ { endpoint color }&<1-n> ]

Default

No default SRv6 TE policies are set.

Views

Policy node view

Predefined user roles

network-admin

Parameters

endpoint: Specifies a default SRv6 TE policy by its endpoint IPv6 address.

color: Specifies a default SRv6 TE policy by its color attribute value in the range of 0 to 4294967295.

sid: Indicates that the SRv6 SID of the destination node is a public network SID.

vpnsid: Indicates that the SRv6 SID of the destination node is a VPN SID.

sid: Specifies the SRv6 SID of the destination node in IPv6 address format.

&<1-n>: Indicates that you can specify up to n default SRv6 TE policies.

Usage guidelines

You can specify multiple default SRv6 TE policies for backup in one command line or by executing this command multiple times. The first available default SRv6 TE policy selected according to configuration order will be used to forward matching packets.

Without any default SRv6 TE policy specified, the undo apply default-srv6-policy command removes all default SRv6 TE policies.

Use the { sid | vpnsid } sid option to specify the SRv6 SID of the destination node and its attribute information (public network SID or VPN SID). The attribute information is not encapsulated in packets and does not affect packet forwarding.

When encapsulating packets matching the default SRv6 TE policy, the source node adds the SRv6 SID of the destination node to the SID list in the SRH header of the packets. Upon receiving the packets, the destination node uses the SRv6 SID to perform an SRv6 local SID forwarding table lookup to forward the packets.

Examples

# Specify a default SRv6 TE policy with destination node IPv6 address 1000::1, color attribute value 10, and destination node SRv6 SID 2000::2.

<Sysname> system-view

[Sysname] policy-based-route aa permit node 1

[Sysname-pbr-aa-1] apply default-srv6-policy 1000::1 10 sid 2000::2

Related commands

apply loadshare

apply gateway

Use apply gateway to specify the next hop addresses as the gateway addresses.

Use undo apply gateway to remove the configuration.

Syntax

apply gateway { interface-type interface-number [ track track-entry-number ] }&<1-n>

undo apply gateway [ { interface-type interface-number }&<1-n> ]

Default

The gateway addresses are not specified as the next hop addresses.

Views

Policy node view

Predefined user roles

network-admin

Parameters

interface-type interface-number: Specifies an interface that obtains the gateway address by its type and number.

track track-entry-number: Specifies a track entry by its number in the range of 1 to 1024.

&<1-n>: Indicates that the argument before it can be entered up to n times.

Usage guidelines

After you configure this command, PBR uses the gateway addresses obtained by the specified interfaces as the next hop addresses for forwarding matching packets. When the gateway addresses change, the device automatically updates the next hop addresses. If the interfaces fail to obtain any gateway addresses or the gateway addresses are invalid, the command does not take effect.

You can configure multiple interfaces in one command line or by executing this command multiple times. The gateway addresses obtained by the interfaces back up one another. The first reachable gateway next hop address selected according to configuration order will be used to forward matching packets.

If you specify an interface, the undo form of this command removes the gateway address obtained by the interface. If you do not specify any interfaces, the undo form of this command removes all gateway addresses used as next hop addresses.

Examples

# Specify the next hop address as the gateway address obtained by interface GigabitEthernet 1/0/1.

<Sysname> system-view

[Sysname] policy-based-route aa permit node 11

[Sysname-pbr-aa-11] apply gateway gigabitethernet 1/0/1

apply ip-df

Use apply ip-df to set the Don't Fragment (DF) bit in the IP header of matching packets.

Use undo apply ip-df to restore the default.

Syntax

apply ip-df df-value

undo apply ip-df

Default

The DF bit is not set.

Views

Policy node view

Predefined user roles

network-admin

Parameters

df-value: Sets the DF bit in the IP header of matching packets. The value can be 0 or 1.

Usage guidelines

Setting the DF bit to 0 allows packet fragmentation.

Setting the DF bit to 1 prohibits packet fragmentation.

Examples

# Set the DF bit in the IP header of matching packets to 0.

<Sysname> system-view

[Sysname] policy-based-route aa permit node 11

[Sysname-pbr-aa-11] apply ip-df 0

apply loadshare

Use apply loadshare to enable load sharing among multiple next hops, output interfaces, SRv6 TE policies, default next hops, default output interfaces, or default SRv6 TE policies.

Use undo apply loadshare to restore the default.

Syntax

apply loadshare { default-next-hop | default-output-interface | default-srv6-policy | next-hop | output-interface | srv6-policy }

undo apply loadshare { default-next-hop | default-output-interface | default-srv6-policy | next-hop | output-interface | srv6-policy }

Default

Multiple next hops, output interfaces, SRv6 TE policies, default next hops, default output interfaces, or default SRv6 TE policies operate in primary/backup mode.

Views

Policy node view

Predefined user roles

network-admin

Parameters

default-next-hop: Enables load sharing among multiple default next hops.

default-output-interface: Enables load sharing among multiple default output interfaces.

default-srv6-policy: Enables load sharing among multiple default SRv6 TE policies.

next-hop: Enables load sharing among multiple next hops.

output-interface: Enables load sharing among multiple output interfaces.

srv6-policy: Enables load sharing among multiple SRv6 TE policies.

Usage guidelines

Multiple next hop, output interface, SRv6 TE policy, default next hop, default output interface, or default SRv6 TE policy options operate in either primary/backup or load sharing mode. The following description uses multiple next hops as an example:

·     Primary/backup mode—A next hop is selected from all next hops in configuration order for packet forwarding, with all remaining next hops as backups. When the selected next hop fails, the next available next hop takes over.

·     Load sharing mode—Matching traffic is distributed across the available next hops. If the traffic does not match any fast forwarding entries, per-packet load sharing is performed. If the traffic matches a fast forwarding entry, per-flow load sharing is performed.

Examples

# Enable load sharing among multiple next hops.

<Sysname> system-view

[Sysname] policy-based-route aa permit node 11

[Sysname-pbr-aa-11] apply next-hop 1.1.1.1 2.2.2.2

[Sysname-pbr-aa-11] apply loadshare next-hop

# Enable load sharing among multiple output interfaces.

<Sysname> system-view

[Sysname] policy-based-route aa permit node 11

[Sysname-pbr-aa-11] apply output-interface gigabitethernet 1/0/1 gigabitethernet 1/0/2

[Sysname-pbr-aa-11] apply loadshare output-interface

# Enable load sharing among multiple SRv6 TE policies.

<Sysname> system-view

[Sysname] policy-based-route aa permit node 11

[Sysname-pbr-aa-11] apply srv6-policy 1000::1 10 sid 2000::2 3000::1 12 sid 4000::2

[Sysname-pbr-aa-11] apply loadshare srv6-policy

# Enable load sharing among multiple default next hops.

<Sysname> system-view

[Sysname] policy-based-route aa permit node 11

[Sysname-pbr-aa-11] apply default-next-hop 1.1.1.1 2.2.2.2

[Sysname-pbr-aa-11] apply loadshare default-next-hop

# Enable load sharing among multiple default output interfaces.

<Sysname> system-view

[Sysname] policy-based-route aa permit node 11

[Sysname-pbr-aa-11] apply default-output-interface gigabitethernet 1/0/1 gigabitethernet 1/0/2

[Sysname-pbr-aa-11] apply loadshare default-output-interface

# Enable load sharing among multiple default SRv6 TE policies.

<Sysname> system-view

[Sysname] policy-based-route aa permit node 11

[Sysname-pbr-aa-11] apply default-srv6-policy 1000::1 10 sid 2000::2 3000::1 12 sid 4000::2

[Sysname-pbr-aa-11] apply loadshare default-srv6-policy

Related commands

apply default-next-hop

apply default-output-interface

apply default-srv6-policy

apply next-hop

apply output-interface

apply srv6-policy

apply next-hop

Use apply next-hop to set next hops.

Use undo apply next-hop to remove next hops.

Syntax

apply next-hop [ vpn-instance vpn-instance-name | inbound-vpn ] { ip-address [ direct ] [ track track-entry-number ] [ weight weight-value ] }&<1-4>

undo apply next-hop [ [ vpn-instance vpn-instance-name | inbound-vpn ] ip-address&<1-4> ]

Default

No next hops are set.

Views

Policy node view

Predefined user roles

network-admin

Parameters

vpn-instance vpn-instance-name: Specifies an MPLS L3VPN instance by its name, a case-sensitive string of 1 to 31 characters. The specified VPN instance must already exist.

inbound-vpn: Specifies the VPN instance where the inbound interface belongs.

ip-address: Specifies the IP address of a next hop. If you do not specify the vpn-instance vpn-instance-name option or the inbound-vpn keyword, the next hop belongs to the public network.

direct: Specifies that the next hop must be directly connected to take effect.

track track-entry-number: Specifies a track entry by its number in the range of 1 to 1024.

weight weight-value: Specifies a load sharing weight for the next hop, in the range of 1 to 100. The default is 10. If you specify weights 1, 1, and 2 for three next hops, they share 1/4, 1/4, and 1/2 of the whole traffic, respectively.

&<1-4>: Indicates that you can specify up to four next hops, each of which can be associated with a track entry.

Usage guidelines

You can specify multiple next hops for backup or load sharing in one command line or by executing this command multiple times.

With a next hop specified, the undo apply next-hop command removes the next hop.

Without any next hop specified, the undo apply next-hop command removes all next hops.

Examples

# Set a directly-connected next hop of 1.1.1.1.

<Sysname> system-view

[Sysname] policy-based-route aa permit node 11

[Sysname-pbr-aa-11] apply next-hop 1.1.1.1 direct

Related commands

apply loadshare

apply output-interface

Use apply output-interface to set output interfaces.

Use undo apply output-interface to remove output interfaces.

Syntax

apply output-interface { interface-type interface-number [ track track-entry-number ] }&<1-4>

undo apply output-interface [ { interface-type interface-number }&<1-4> ]

Default

No output interfaces are set.

Views

Policy node view

Predefined user roles

network-admin

Parameters

interface-type interface-number: Specifies an interface by its type and number.

track track-entry-number: Specifies a track entry by its number in the range of 1 to 1024.

&<1-4>: Indicates that you can specify up to four interfaces, each of which can be associated with a track entry.

Usage guidelines

You can specify multiple output interfaces for backup or load sharing in one command line or by executing this command multiple times.

The output interface must be P2P type. Using a non-P2P output interface can result in forwarding failures when the interface has multiple next hops. Non-P2P interfaces include broadcast and NBMA interfaces such as Ethernet and virtual-template interfaces.

With an output interface specified, the undo apply output-interface command removes the output interface.

Without any output interface specified, the undo apply output-interface command removes all output interfaces.

Examples

# Specify GigabitEthernet 1/0/1 as the output interface for IP packets

<Sysname> system-view

[Sysname] policy-based-route aa permit node 11

[Sysname-pbr-aa-11] apply output-interface gigabitethernet 1/0/1

Related commands

apply loadshare

apply precedence

Use apply precedence to set a precedence for IP packets.

Use undo apply precedence to restore the default.

Syntax

apply precedence { type | value }

undo apply precedence

Default

No precedence is set for IP packets.

Views

Policy node view

Predefined user roles

network-admin

Parameters

type: Specifies the precedence type for IP packets.

value: Specifies the precedence for IP packets. Eight precedence values (0 to 7) are available. Each precedence value corresponds to a precedence type, as shown in Table 1. You can set either a precedence value or a precedence type for IP packets.

Table 1 IP precedences and corresponding types

Precedence value

Precedence type

0

routine

1

priority

2

immediate

3

flash

4

flash-override

5

critical

6

internet

7

network

 

Examples

# Set the precedence to 5 (critical) for IP packets.

<Sysname> system-view

[Sysname] policy-based-route aa permit node 11

[Sysname-pbr-aa-11] apply precedence critical

apply remark-vpn

Use apply remark-vpn to enable VPN remark action.

Use undo apply remark-vpn to restore the default.

Syntax

apply remark-vpn

undo apply remark-vpn

Default

VPN remark action is not configured.

Views

Policy node view

Predefined user roles

network-admin

Usage guidelines

VPN remark action marks the matching packets as belonging to the VPN instance to which they are forwarded based on the apply access-vpn vpn-instance command. All subsequent service modules of PBR handle the packets as belonging to the re-marked VPN instance.

If the VPN remark action is not enabled, the forwarded matching packets are marked as belonging to the VPN instance or the public network from which they were received.

VPN remark action applies only to packets that have been successfully forwarded based on the apply access-vpn vpn-instance command.

Examples

# Forward packets that match ACL 3000 based on the forwarding table of VPN instance vpn1 and perform VPN remark action on the successfully forwarded packets.

<Sysname> system-view

[Sysname] policy-based-route aaa permit node 10

[Sysname-pbr-aaa-10] if-match acl 3000

[Sysname-pbr-aaa-10] apply access-vpn vpn-instance vpn1

[Sysname-pbr-aaa-10] apply remark-vpn

Related commands

apply access-vpn vpn-instance

apply srv6-policy

Use apply srv6-policy to set SRv6 TE policies.

Use undo apply srv6-policy to remove SRv6 TE policies.

Syntax

apply srv6-policy { endpoint color [ { sid | vpnsid } sid ] }&<1-n>

undo apply srv6-policy [ { endpoint color }&<1-n> ]

Default

No SRv6 TE policies are set.

Views

Policy node view

Predefined user roles

network-admin

Parameters

endpoint: Specifies an SRv6 TE policy by its endpoint IPv6 address.

color: Specifies an SRv6 TE policy by its color attribute value in the range of 0 to 4294967295.

sid: Indicates that the SRv6 SID of the destination node is a public network SID.

vpnsid: Indicates that the SRv6 SID of the destination node is a VPN SID.

sid: Specifies the SRv6 SID of the destination node in IPv6 address format.

&<1-n>: Indicates that you can specify up to n SRv6 TE policies.

Usage guidelines

You can specify multiple SRv6 TE policies for backup in one command line or by executing this command multiple times. The first available SRv6 TE policy selected according to configuration order will be used to forward matching packets.

Without any SRv6 TE policy specified, the undo apply srv6-policy command removes all SRv6 TE policies.

Use the { sid | vpnsid } sid option to specify the SRv6 SID of the destination node and its attribute information (public network SID or VPN SID). The attribute information is not encapsulated in packets and does not affect packet forwarding.

When encapsulating packets matching the SRv6 TE policy, the source node adds the SRv6 SID of the destination node to the SID list in the SRH header of the packets. Upon receiving the packets, the destination node uses the SRv6 SID to perform an SRv6 local SID forwarding table lookup to forward the packets.

Examples

# Specify an SRv6 TE policy with destination node IPv6 address 1000::1, color attribute value 10, and destination node SRv6 SID 2000::2.

<Sysname> system-view

[Sysname] policy-based-route aa permit node 1

[Sysname-pbr-aa-1] apply srv6-policy 1000::1 10 sid 2000::2

Related commands

apply loadshare

display ip policy-based-route

Use display ip policy-based-route to display PBR policy information.

Syntax

display ip policy-based-route [ policy policy-name ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

policy policy-name: Specifies a policy by its name, a case-sensitive string of 1 to 19 characters. If you do not specify a policy, this command displays information for all PBR policies.

Examples

# Display all policy information.

<Sysname> display ip policy-based-route

Policy name: aaa

  node 1 permit:

    if-match acl 2000

    apply next-hop 1.1.1.1

    apply srv6-policy 1000::1 10 sid 2000::2(NID: 2150629377)

    apply default-srv6-policy 3000::3 20 vpnsid 4000::4(NID: 2149580801)

Table 2 Command output

Field

Description

node 1 permit

The match mode of Node 1 is permit.

if-match acl

Compares packets with the ACL.

apply next-hop

Specifies a next hop for permitted packets.

apply srv6-policy 1000::1 10 sid 2000::2(NID: 2150629377)

Specifies an SRv6 TE policy for permitted packets. Associated information about the SRv6 TE policy include:

·     Destination node IPv6 address 1000::1.

·     Color attribute value 10.

·     Destination node SRv6 SID 2000::2.

·     Next Hop Label Forwarding Entry (NHLFE) index 2150629377.

apply default-srv6-policy 3000::3 20 vpnsid 4000::4(NID: 2149580801)

Specifies a default SRv6 TE policy for permitted packets. Associated information about the SRv6 TE policy include:

·     Destination node IPv6 address 3000::3.

·     Color attribute value 20.

·     Destination node SRv6 SID 4000::4.

·     NHLFE index 2149580801.

 

Related commands

policy-based-route

display ip policy-based-route interface

Use display ip policy-based-route interface to display interface PBR configuration and statistics.

Syntax

In standalone mode:

display ip policy-based-route interface interface-type interface-number

In IRF mode:

display ip policy-based-route interface interface-type interface-number [ slot slot-number ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

interface-type interface-number: Specifies an interface by its type and number.

slot slot-number: Specifies an IRF member device by its member ID. If you do not specify a member device, this command displays information on the master device. (In IRF mode.)

Examples

# Display PBR configuration and statistics on GigabitEthernet 1/0/1.

<Sysname> display ip policy-based-route interface gigabitethernet 1/0/1

Policy based routing information for interface GigabitEthernet1/0/1(failed):

Policy name: aaa

  node 0 deny:

  Matches: 0

  node 1 permit:

    if-match acl 3999

  Matches: 0

  node 2 permit:

    if-match acl 2000

    apply next-hop 2.2.2.2

  Matches: 0

  node 5 permit:

    if-match acl 3101

    apply next-hop 1.1.1.1

    apply output-interface GigabitEthernet1/0/2 track 1 (down)

    apply output-interface GigabitEthernet1/0/3 track 2 (inactive)

  Matches: 0

  node 8 permit:

   if-match acl 3200

    apply srv6-policy 1000::1 10 sid 2000::2(NID: 2150629377)

    apply default-srv6-policy 3000::3 20 vpnsid 4000::4(NID: 2149580801)

  Matches: 0

Total matches: 0

Table 3 Command output

Field

Description

Policy based routing information for interface XXXX

PBR configuration and statistics on the interface.

This field displays failed in brackets if none of the nodes in the policy has been successfully issued to the driver. To issue the policy, you must remove the policy from the interface and then apply it on the interface again.

NOTE:

The failed status is available on a per-slot basis. To obtain this information, you must specify a slot number when you execute the command.

·     For a global interface (for example, a VLAN interface), which might have member physical interfaces on multiple slots, specify a slot that contains its member interfaces.

·     For a physical interface, specify its slot number.

node 0 deny

node 2 permit

Match mode of the node, permit or deny.

If a node fails to be issued to the driver, the command displays the cause in brackets, which include:

·     not support—The device does not support the match criteria configured on the node.

·     no resource—No sufficient resources (for example, ACLs) are available for the node.

NOTE:

The cause is available only on a per-slot basis. To obtain this information, you must specify a slot number when you execute the command.

·     For a global interface (for example, a VLAN interface), which might have member physical interfaces on multiple slots, specify a slot that contains its member interfaces.

·     For a physical interface, specify its slot number.

if-match acl

Compares packets with the ACL.

apply next-hop

Specifies a next hop for permitted packets.

apply output-interface

Specifies an output interface and its associated track entry for permitted packets.

This field displays the interface status in brackets.

·     down—The interface is down at network layer.

·     inactive—The card that hosts the interface is not in position.

apply srv6-policy 1000::1 10 sid 2000::2(NID: 2150629377)

Specifies an SRv6 TE policy for permitted packets. Associated information about the SRv6 TE policy include:

·     Destination node IPv6 address 1000::1.

·     Color attribute value 10.

·     Destination node SRv6 SID 2000::2.

·     Next Hop Label Forwarding Entry (NHLFE) index 2150629377.

apply default-srv6-policy 3000::3 20 vpnsid 4000::4(NID: 2149580801)

Specifies a default SRv6 TE policy for permitted packets. Associated information about the SRv6 TE policy include:

·     Destination node IPv6 address 3000::3.

·     Color attribute value 20.

·     Destination node SRv6 SID 4000::4.

·     NHLFE index 2149580801.

Matches

Number of successful matches on the node. If the device does not have sufficient resources to count matches, this field displays no statistics resource in brackets.

NOTE:

The statistics collection failure cause is available only on a per-slot basis. To obtain this information, you must specify a slot number when you execute the command.

·     For a global interface (for example, a VLAN interface), which might have member physical interfaces on multiple slots, specify a slot that contains its member interfaces.

·     For a physical interface, specify its slot number.

Total matches

Total number of successful matches on all nodes.

 

Related commands

ip policy-based-route

display ip policy-based-route local

Use display ip policy-based-route local to display local PBR configuration and statistics.

Syntax

In standalone mode:

display ip policy-based-route local

In IRF mode:

display ip policy-based-route local [ slot slot-number ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

slot slot-number: Specifies an IRF member device by its member ID. If you do not specify a member device, this command displays local PBR configuration and statistics for the master device. (In IRF mode.)

Examples

# Display local PBR configuration and statistics.

<Sysname> display ip policy-based-route local

Policy based routing information for local:

Policy name: aaa

  node 0 deny:

  Matches: 0

  node 1 permit:

    if-match acl 3999

  Matches: 0

  node 2 permit:

    if-match acl 2000

    apply next-hop 2.2.2.2

  Matches: 0

  node 5 permit:

    if-match acl 3101

    apply next-hop 1.1.1.1

  Matches: 0

  node 8 permit:

   if-match acl 3200

    apply srv6-policy 1000::1 10 sid 2000::2(NID: 2150629377)

    apply default-srv6-policy 3000::3 20 vpnsid 4000::4(NID: 2149580801)

  Matches: 0

Total matches: 0

Table 4 Command output

Field

Description

Policy based routing information for local

Local PBR configuration and statistics.

node 0 deny/node 2 permit

Match mode of the node: permit or deny.

if-match acl

Compares packets with the ACL.

apply next-hop

Specifies a next hop for permitted packets.

apply srv6-policy 1000::1 10 sid 2000::2(NID: 2150629377)

Specifies an SRv6 TE policy for permitted packets. Associated information about the SRv6 TE policy include:

·     Destination node IPv6 address 1000::1.

·     Color attribute value 10.

·     Destination node SRv6 SID 2000::2.

·     Next Hop Label Forwarding Entry (NHLFE) index 2150629377.

apply default-srv6-policy 3000::3 20 vpnsid 4000::4(NID: 2149580801)

Specifies a default SRv6 TE policy for permitted packets. Associated information about the SRv6 TE policy include:

·     Destination node IPv6 address 3000::3.

·     Color attribute value 20.

·     Destination node SRv6 SID 4000::4.

·     NHLFE index 2149580801.

Matches

Number of successful matches on the node.

Total matches

Total number of successful matches on all nodes.

 

Related commands

ip local policy-based-route

display ip policy-based-route setup

Use display ip policy-based-route setup to display PBR configuration.

Syntax

display ip policy-based-route setup

Views

Any view

Predefined user roles

network-admin

network-operator

Examples

# Display PBR configuration.

Policy name              Type     Interface

aaa                      Forward  GigabitEthernet1/0/1

aaa                      Forward  GigabitEthernet1/0/2

aaa                      Local    N/A

Table 5 Command output

Field

Description

Type

Type of the PBR:

·     Forward—Interface PBR.

·     Local—Local PBR.

Interface

Interface where the policy is applied.

This field displays N/A for a local PBR policy.

if-match acl

Use if-match acl to set an ACL match criterion.

Use undo if-match acl to restore the default.

Syntax

if-match acl { acl-number | name acl-name }

undo if-match acl

Default

No ACL match criterion is set.

Views

Policy node view

Predefined user roles

network-admin

Parameters

acl-number: Specifies an ACL by its number in the range of 2000 to 2999 for a basic ACL, and in the range of 3000 to 3999 for an advanced ACL.

name acl-name: Specifies an ACL by its name, a case-insensitive string of 1 to 63 characters starting with letter a to z or A to Z. The ACL name cannot be all. For the command to take effect, make sure the specified ACL is a basic or advanced ACL.

Usage guidelines

If the specified ACL does not exist or has no rules configured, no packets will match the ACL.

If the vpn-instance keyword is specified for an ACL rule, the rule applies to only VPN packets. If the vpn-instance keyword is not specified, the rule applies to only public network packets.

Examples

# Configure Node 11 of policy aa to permit the packets matching ACL 2011.

<Sysname> system-view

[Sysname] policy-based-route aa permit node 11

[Sysname-pbr-aa-11] if-match acl 2011

# Configure Node 11 of policy aa to permit the packets matching ACL aaa.

<Sysname> system-view

[Sysname] policy-based-route aa permit node 11

[Sysname-pbr-aa-11] if-match acl name aaa

if-match app-group

Use if-match app-group to set application group match criteria.

Use undo if-match app-group to delete application group match criteria.

Syntax

if-match app-group app-group-name&<1-6>

undo if-match app-group [ app-group-name&<1-6> ]

 

Default

No application group match criteria are set.

Views

Policy node view

Predefined user roles

network-admin

Parameters

app-group-name&<1-6>: Specifies up to six application groups by their names. An application group name is a case-insensitive string of 1 to 63 characters, which can contain letters, digits, underscores (_), and hyphens (-). The application group name cannot be Invalid, other, or any application group name predefined by the system.

Usage guidelines

The application match criteria apply only to interface PBR.

If you specify an application group, the undo if-match app-group command deletes the application group match criterion.

If you do not specify an application group, the undo if-match app-group command deletes all application group match criteria.

Examples

# Specify the application group test as a match criterion.

<Sysname> system-view

[Sysname] policy-based-route aa permit node 11

[Sysname-pbr-aa-11] if-match app-group test

if-match object-group

Use if-match object-group to set service object group match criteria.

Use undo if-match object-group to delete service object group match criteria.

Syntax

if-match object-group service object-group-name&<1-6>

undo if-match object-group service [ object-group-name&<1-6> ]

 

Default

No service object group match criteria are set.

Views

Policy node view

Predefined user roles

network-admin

Parameters

object-group-name&<1-6>: Specifies up to six service object groups by their names. A service object group name is a case-insensitive string of 1 to 63 characters, which can contain letters, digits, underscores (_), and hyphens (-).

Usage guidelines

If you specify a service object group, the undo if-match object-group command deletes the service object group match criterion.

If you do not specify a service object group, the undo if-match object-group command deletes all service object group match criteria.

Examples

# Specify the service object group test as a match criterion.

<Sysname> system-view

[Sysname] policy-based-route aa permit node 11

[Sysname-pbr-aa-11] if-match object-group service test

if-match packet-length

Use if-match packet-length to set a packet length match criterion.

Use undo if-match packet-length to restore the default.

Syntax

if-match packet-length min-len max-len

undo if-match packet-length

 

Default

No packet length match criterion is set.

Views

Policy node view

Predefined user roles

network-admin

Parameters

min-len: Specifies the minimum IP packet length in the range of 1 to 65535 bytes.

max-len: Specifies the maximum IP packet length in the range of 1 to 65535 bytes. The maximum length must be no less than the minimum length.

Usage guidelines

Use this command to set a criterion to match the total length of data packets.

The packet length range includes boundary values. For example, if you set the min-len and max-len arguments to 100 and 200, respectively, packets with lengths of 100 bytes and 200 bytes are also matched.

Examples

# Match packets with a length from 100 to 200 bytes.

<Sysname> system-view

[Sysname] policy-based-route aa permit node 11

[Sysname-pbr-aa-11] if-match packet-length 100 200

if-match source-ip

Use if-match source-ip to set a source IP address match criterion to match locally generated packets.

Use undo if-match source-ip to delete the source IP address match criterion to match locally generated packets.

Syntax

if-match source-ip { interface interface-type interface-number | [ vpn-instance vpn-instance-name ] ip-address }

undo if-match source-ip

 

Default

No source IP address match criterion is set.

Views

Policy node view

Predefined user roles

network-admin

Parameters

interface interface-type interface-number: Specifies an interface by its type and number. The primary IP address of the interface will be used to match packets.

vpn-instance vpn-instance-name: Specifies an MPLS L3VPN instance by its name, a case-sensitive string of 1 to 31 characters. If you do not specify this option, the specified IP address belongs to the public network.

ip-address: Specifies an IP address in dotted decimal notation.

Usage guidelines

This command matches locally generated packets sent out with the specified IP address or the primary IP address of the specified interface.

Typically, you use this command to make sure local tunneled or VPN traffic (for example, IPsec packets) is sent towards the correct ISP when the device is dual- or multi-homed to different ISPs. This command helps you avoid packet drops that might occur when packets are sent to an incorrect ISP.

For the matching traffic, use the apply next-hop or apply output-interface command to specify the next hop or the output interface. As a best practice, specify the output interface in the apply clause if you specify the source interface in the if-match clause.

As a best practice, do not specify the interface of a VXLAN tunnel automatically created by EVPN for this command. If the tunnel interface number changes upon VXLAN tunnel reestablishment, the match criterion no longer takes effect. For more information about EVPN, see EVPN overview in EVPN Configuration Guide.

If you execute this command multiple times on a policy node, the most recent configuration takes effect.

Examples

# Match locally generated packets with source IP address 1.1.1.1.

<Sysname> system-view

[Sysname] policy-based-route aa permit node 11

[Sysname-pbr-aa-11] if-match source-ip 1.1.1.1

ip local policy-based-route

Use ip local policy-based-route to specify a policy for local PBR.

Use undo ip local policy-based-route to restore the default.

Syntax

ip local policy-based-route policy-name

undo ip local policy-based-route

Default

No policy is specified for local PBR.

Views

System view

Predefined user roles

network-admin

Parameters

policy-name: Specifies a policy by its name, a case-sensitive string of 1 to 19 characters. The specified policy must already exist.

Usage guidelines

Local PBR guides the forwarding of locally generated packets, such as ICMP packets generated by using the ping command.

Local PBR might affect local services, such as ping and Telnet. When you use local PBR, make sure you fully understand its impact on local services of the device.

You can specify only one policy for local PBR and must make sure the specified policy already exists.

Before you apply a new policy, you must first remove the current policy.

Examples

# Configure local PBR based on policy aaa.

<Sysname> system-view

[Sysname] ip local policy-based-route aaa

Related commands

display ip policy-based-route local

ip policy-based-route

Use ip policy-based-route to specify a policy for interface PBR on an interface.

Use undo ip policy-based-route to restore the default.

Syntax

ip policy-based-route policy-name

undo ip policy-based-route

Default

No policy is applied to an interface.

Views

Interface view

Predefined user roles

network-admin

Parameters

policy-name: Specifies a policy by its name, a case-sensitive string of 1 to 19 characters. The specified policy must already exist.

 

Examples

# Apply policy aaa to GigabitEthernet 1/0/1.

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] ip policy-based-route aaa

Related commands

display ip policy-based-route interface

policy-based-route

Use policy-based-route to create a policy node and enter its view, or enter the view of an existing policy node.

Use undo policy-based-route to delete a policy or policy node.

Syntax

policy-based-route policy-name [ deny | permit ] node node-number

undo policy-based-route policy-name [ deny | node node-number | permit ]

Default

No policy nodes exist.

Views

System view

Predefined user roles

network-admin

Parameters

policy-name: Specifies a policy by its name, a case-sensitive string of 1 to 19 characters.

deny: Specifies the match mode for the policy node as deny.

permit: Specifies the match mode for the policy node as permit (default mode).

node node-number: Specifies a policy node by its number. A smaller number has a higher priority. The value range for the node-number argument is 0 to 65535.

Usage guidelines

A policy that has been applied to an interface or locally cannot be deleted. To delete it, you must first cancel the application.

·     If a policy node is specified, the undo policy-based-route command deletes the specified policy node.

·     If a match mode is specified, the command deletes all nodes configured with the match mode.

·     If no policy node or match mode is specified, the command deletes the whole policy.

Examples

# Create permit-mode of Node 10 for policy policy1 and enter its view.

<Sysname> system-view

[Sysname] policy-based-route policy1 permit node 10

[Sysname-pbr-policy1-10]

Related commands

display ip policy-based-route

reset ip policy-based-route statistics

Use reset ip policy-based-route statistics to clear PBR statistics.

Syntax

reset ip policy-based-route statistics [ policy policy-name ]

Views

User view

Predefined user roles

network-admin

Parameters

policy policy-name: Specifies a policy by its name, a case-sensitive string of 1 to 19 characters. If you do not specify a policy, this command clears PBR statistics for all policies.

Examples

# Clear all PBR statistics.

<Sysname> reset ip policy-based-route statistics

 

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