- Table of Contents
-
- 05-Layer 3—IP Routing Command Reference
- 00-Preface
- 01-Basic IP routing commands
- 02-Static routing commands
- 03-RIP commands
- 04-OSPF commands
- 05-IS-IS commands
- 06-BGP commands
- 07-Policy-based routing commands
- 08-IPv6 static routing commands
- 09-RIPng commands
- 10-OSPFv3 commands
- 11-IPv6 policy-based routing commands
- 12-Routing policy commands
- Related Documents
-
Title | Size | Download |
---|---|---|
07-Policy-based routing commands | 116.74 KB |
Contents
apply default-output-interface
apply fail-action-drop next-hop
display ip policy-based-route apply
display ip policy-based-route interface
display ip policy-based-route local
display ip policy-based-route setup
ip policy-based-route vxlan-mode enable
reset ip policy-based-route statistics
Policy-based routing commands
apply access-vpn vpn-instance
Use apply access-vpn vpn-instance to set VPN instances.
Use undo apply access-vpn vpn-instance to remove VPN instances.
Syntax
apply access-vpn vpn-instance vpn-instance-name
undo apply access-vpn vpn-instance [ vpn-instance-name ]
Default
No VPN instance is specified for a node.
Views
Policy node view
Predefined user roles
network-admin
Parameters
vpn-instance-name: Specifies an MPLS L3VPN instance by its name, a case-sensitive string of 1 to 31 characters. The specified VPN must already exist.
Usage guidelines
After configuring this command for a policy node, you can configure only an ACL match criterion to match the input interface, source IP address, and destination IP address of packets.
If you apply the PBR policy configured with this command to a Layer 3 Ethernet interface or Layer 3 aggregate interface, the PBR policy also applies to all the associated subinterfaces. If you apply the PBR policy configured with this command to a Layer 3 Ethernet subinterface or Layer 3 aggregate subinterface, the PBR policy also applies to its primary interface and other associated subinterfaces.
Examples
# Set VPN 1 and VPN 2 for node 10. (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
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 ] { ip-address [ direct ] [ track track-entry-number ] }&<1-2>
undo apply default-next-hop [ [ vpn-instance vpn-instance-name ] ip-address&<1-2> ]
Default
No default next hop is 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.
ip-address: Specifies the IP address of the default next hop. If you do not specify the vpn-instance vpn-instance-name option, 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.
&<1-2>: Indicates that the argument before it can be entered up to two times.
Usage guidelines
You can specify multiple default next hops for backup 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
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 ]
undo apply default-output-interface [ interface-type interface-number ]
Default
No default output interface is 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.
Examples
# Specify VLAN-interface 2 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 vlan-interface 2
apply fail-action-drop next-hop
Use apply fail-action-drop next-hop to set the action that drops matching packets when all next hops on a policy node are invalid.
Use undo apply fail-action-drop next-hop to restore the default.
Syntax
apply fail-action-drop next-hop
undo apply fail-action-drop next-hop
Default
The drop action is not configured. The matching packets are forwarded based on the typical packet forwarding process if all next hops on the policy node are invalid.
Views
Policy node view
Predefined user roles
network-admin
Usage guidelines
By default, the device uses the typical packet forwarding process to route matching packets when all next hops on the policy node are unavailable. To drop all matching packets when all next hops on the policy node are unavailable, use this command. This command is typically used in scenarios that require strict routing paths.
If no next hops are specified on the policy node, this command drops all packets that match the node.
This command does not apply to software-forwarded packets.
Examples
# Set next hop 1.1.1.1 on policy node 10 and configure the policy node to drop matching packets when the next hop is invalid.
<Sysname> system-view
[Sysname] policy-based-route policy1 permit node 10
[Sysname-pbr-policy1-10] apply next-hop 1.1.1.1
[Sysname-pbr-policy1-10] apply fail-action-drop next-hop
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 ] { ip-address [ direct ] [ track track-entry-number ] }&<1-2>
undo apply next-hop [ [ vpn-instance vpn-instance-name ] ip-address&<1-2> ]
Default
No next hop is 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.
ip-address: Specifies the IP address of the next hop. If you do not specify the vpn-instance vpn-instance-name option, 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.
&<1-2>: Indicates that the argument before it can be entered up to two times.
Usage guidelines
You can specify multiple next hops for backup 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
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 ]
undo apply output-interface [ interface-type interface-number ]
Default
No output interface is 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.
Examples
# Specify VLAN-interface 2 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 vlan-interface 2
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
description
Use description to configure a description for a policy node.
Use undo description to restore the default.
Syntax
description text
undo description
Default
No description is configured for a policy node.
Views
Policy node view
Predefined user roles
network-admin
Parameters
text: Specifies a description, a case-sensitive string of 1 to 127 characters.
Examples
# Configure the description as Officeuse for policy node 1.
<Sysname> system-view
[Sysname] policy-based-route 1 permit node 1
[Sysname-pbr-1-1] description Officeuse
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
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. |
Related commands
policy-based-route
display ip policy-based-route apply
Use display ip policy-based-route apply to display the PBR configuration and statistics for a VLAN interface.
Syntax
display ip policy-based-route apply vlan-interface interface-number [ slot slot-number ]
Views
Any view
Predefined user roles
network-admin
network-operator
Parameters
vlan-interface interface-number: Specifies a VLAN interface by its 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 for the specified VLAN interface on the master device.
Parameters
This command displays configuration and statistics for PBR that is configured with the ip policy-based-route apply command. To display configuration and statistics for PBR that is configured in VLAN interface view, use the display ip policy-based-route interface command.
Examples
# Display the PBR configuration and statistics for VLAN-interface 100.
<Sysname> display ip policy-based-route apply vlan-interface 100
Policy-based routing information for Vlan-interface 100:
Policy name: aaa
node 2 permit:
if-match acl 3000
apply next-hop 2.2.2.2
Matched: 0
Total matched: 0
Table 3 Command output
Field |
Description |
Policy-based routing information for Vlan-interface xxx |
PBR configuration and statistics for the VLAN interface. |
node 2 permit |
Match mode of the node: permit. |
if-match acl |
Compares packets with the ACL. |
apply next-hop |
Specifies a next hop for permitted packets. |
Matched: 0 |
Number of successful matches on the node. |
Total matched |
Total number of successful matches on all nodes. |
Related commands
ip policy-based-route apply
display ip policy-based-route interface
Use display ip policy-based-route interface to display interface PBR configuration and statistics.
Syntax
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.
Examples
# Display PBR configuration and statistics on VLAN-interface 2.
<Sysname> display ip policy-based-route interface vlan-interface 2
Policy based routing information for interface Vlan-interface2:
Policy name: aaa
node 0 deny:
Matched: 0
node 1 permit:
if-match acl 3999
Matched: 0
node 2 permit:
if-match acl 2000
apply next-hop 2.2.2.2
apply output-interface Vlan-interface3 track 1
apply output-interface Vlan-interface4 track 2
Matched: 0
node 5 permit:
if-match acl 3101
apply next-hop 1.1.1.1
Matched: 0
Total matched: 0
Table 4 Command output
Field |
Description |
Policy based routing information for interface XXXX(failed) |
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. The failed status will persist even after the policy is successfully issued. To clear the failed status, 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(not support) node 2 permit(no resource) |
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 track 1 (down) |
Specifies an output interface and its associated track entry for permitted packets. This field displays the interface status in brackets. · up—The interface is up. · down—The interface is down at network layer. · inactive—The card that hosts the interface is not in position. |
Matched: 0 (no statistics resource) |
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 matched |
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
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.
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:
Matched: 0
node 1 permit:
if-match acl 3999
Matched: 0
node 2 permit:
if-match acl 2000
apply next-hop 2.2.2.2
Matched: 0
node 5 permit:
if-match acl 3101
apply next-hop 1.1.1.1
Matched: 0
Total matched: 0
Table 5 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. |
Matched: 0 |
Number of successful matches on the node. |
Total matched |
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.
<Sysname> display ip policy-based-route setup
Policy name Type Interface
pr01 Forward Vlan-interface2
aaa Local N/A
Table 6 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 local PBR. |
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.
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 vxlan-id
Use if-match vxlan-id to set a VXLAN match criterion
Use undo if-match vxlan-id to restore the default.
Syntax
if-match vxlan-id vxlan-id
undo if-match vxlan-id
Default
No VXLAN match criterion is set.
Views
Policy node view
Predefined user roles
network-admin
Parameters
vxlan-id: Specifies a VXLAN ID in the range of 0 to 16777215.
Examples
# Configure Node 11 of policy aaa to permit packets with the VXLAN ID 1000.
<Sysname> system-view
[Sysname] policy-based-route aaa permit node 11
[Sysname-pbr-aaa-11] if-match vxlan-id 1000
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 [ share-mode ]
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.
share-mode: Applies the policy in resource sharing mode. In this mode, all interfaces on a device with the same policy applied share one hardware resource. If you do not specify this keyword, each interface occupies one independent hardware resource. You can apply only one ACL, QoS policy, or PBR policy with the share-mode keyword specified to one direction of an interface. For information about ACL and QoS policies, see ACL commands and QoS policy commands in ACL and QoS Command Reference.
Usage guidelines
You can specify only one mode for the policy on an interface. Before you change the mode of the policy, you must first remove the current policy from the interface.
Examples
# Apply policy aaa to VLAN-interface 2.
<Sysname> system-view
[Sysname] interface vlan-interface 2
[Sysname-Vlan-interface2] ip policy-based-route aaa
Related commands
display ip policy-based-route interface
ip policy-based-route apply
Use ip policy-based-route apply to specify a policy for a list of VLAN interfaces.
Use undo ip policy-based-route apply to restore the default.
Syntax
ip policy-based-route policy-name apply vlan-interface interface-list
undo ip policy-based-route policy-name apply [ vlan-interface interface-list ]
Default
No policy is specified for the VLAN interfaces.
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 policy must already exist.
vlan-interface interface-list: Specifies a space-separated list of up to eight VLAN interface items. Each item specifies a VLAN interface or a range of VLAN interfaces in the form of interface-type interface-number1 to interface-type interface-number2. The value for interface-number2 must be greater than or equal to the value for interface-number1. The interface type is VLAN interface.
Usage guidelines
You cannot specify different policies for a VLAN interface. You can use either of the following commands to specify a policy for a VLAN interface:
· ip policy-based-route apply
· ip policy-based-route (interface view)
To specify a policy for multiple VLAN interfaces, you can use either of the following methods:
· Method 1—Execute the ip policy-based-route apply command. The policy is issued to the driver for all interfaces at the same time. This method reduces hardware entries and saves system resources. You can use this method to specify a policy for VLAN interfaces that do not exist.
· Method 2—Use the interface range command to create an interface range, and specify a policy for the interface range. The policy is issued to the driver for each interface. The system creates a hardware entry for each interface.
Examples
# Specify policy aaa for VLAN-interface 100 through VLAN-interface 200.
<Sysname> system-view
[Sysname] ip policy-based-route aaa apply vlan-interface 100 to 200
Related commands
display ip policy-based-route apply
ip policy-based-route vxlan-mode enable
Use ip policy-based-route vxlan-mode enable to enable VXLAN-mode PBR.
Use undo ip policy-based-route vxlan-mode enable to disable VXLAN-mode PBR.
Syntax
ip policy-based-route vxlan-mode enable
undo ip policy-based-route vxlan-mode enable
Default
VXLAN-mode PBR is disabled.
Views
System view
Predefined user roles
network-admin
Usage guidelines
VXLAN-mode PBR enables you to guide packets from a site-facing interface on a VXLAN VTEP to a VXLAN tunnel by using a PBR policy. If VXLAN-mode PBR is not enabled, the PBR policy on a site-facing interface cannot guide packets to a VXLAN tunnel.
Execute this command before you apply a PBR policy to a site-facing interface. This command requires updating forwarding entries, which is time-consuming and might cause inadequate table entry resources.
Examples
# Enable VXLAN-mode PBR.
<Sysname> system-view
[Sysname] ip policy-based-route vxlan-mode enable
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 2047.
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