04-Layer 3-IP Routing Command Reference

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02-Static routing commands
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02-Static routing commands 140.84 KB

Static routing commands

delete static-routes all

Use delete static-routes all to delete all static routes.

Syntax

delete static-routes all

delete [ vpn-instance vpn-instance-name ] static-routes all

Views

System 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. If you do not specify a VPN instance, the command deletes all static routes for the public network.

Usage guidelines

When you use this command, the system will prompt you to confirm the operation before deleting all the static routes.

To delete one static route, use the undo ip route-static command. To delete all static routes, including the default route, use the delete static-routes all command.

Examples

# Delete all static routes.

<Sysname> system-view

[Sysname] delete static-routes all

This will erase all IPv4 static routes and their configurations, you must reconfigure all static routes.

Are you sure?[Y/N]:y

Related commands

ip route-static

display route-static nib

Use display route-static nib to display static route next hop information.

Syntax

display route-static nib [ nib-id ] [ verbose ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

nib-id: Specifies a NIB by its ID, a hexadecimal string of 1 to ffffffff. If you do not specify this argument, the command displays all static route next hop information.

verbose: Displays detailed static route next hop information. If you do not specify this keyword, the command displays brief static route next hop information.

Examples

# Displays brief static route next hop information.

<Sysname> display route-static nib

Total number of nexthop(s): 44

 

      NibID: 0x11000000        Sequence: 0

       Type: 0x21               Flushed: Yes

   UserKey0: 0x111              VrfNthp: 0

   UserKey1: 0x0                Nexthop: 0.0.0.0

    IFIndex: 0x111            LocalAddr: 0.0.0.0

     NewUK0: 0x0                 NewUK1: 0x0

     NewUK2: 0x0                 NewUK3: 0x0

     NewUK4: 0x0                 NewUK5: 0x0

     NewUK6: 0x0                 NewUK7: 0x0

   TopoNthp: 0                  ExtType: 0x0

      Color: 0                   COFlag: 0x0

   SIDIndex: 0x0

 

      NibID: 0x11000001        Sequence: 1

       Type: 0x41               Flushed: Yes

   UserKey0: 0x0                VrfNthp: 5

   UserKey1: 0x0                Nexthop: 2.2.2.2

    IFIndex: 0x0              LocalAddr: 0.0.0.0

     NewUK0: 0x0                 NewUK1: 0x0

     NewUK2: 0x0                 NewUK3: 0x0

     NewUK4: 0x0                 NewUK5: 0x0

     NewUK6: 0x0                 NewUK7: 0x0

   TopoNthp: 0                  ExtType: 0x0

      Color: 0                   COFlag: 0x0

   SIDIndex: 0x0

 

...

Table 1 Command output

Field

Description

NibID

ID of the NIB.

NibSeq

Sequence number of the NIB.

Type

Type of the NIB.

Flushed

Indicates whether the route with the NIB has been flushed to the FIB.

UserKey0

Reserved data 1.

UserKey1

Reserved data 2.

VrfNthp

Index of the VPN instance to which the next hop belongs. This field displays 0 if the next hop is on the public network.

Nexthop

Next hop address.

IFIndex

Interface index

LocalAddr

Local interface address.

NewUK0

New reserved data 1.

NewUK1

New reserved data 2.

NewUK2

New reserved data 3.

NewUK3

New reserved data 4.

NewUK4

New reserved data 5.

NewUK5

New reserved data 6.

NewUK6

New reserved data 7.

NewUK7

New reserved data 8.

TopoNthp

Index of the topology that contains the next hop. This field displays 0 if the next hop is on the public network.

ExtType

NIB extension type.

Color

Color extended community attribute.

COFlag

Flag of the color extended community attribute.

SIDIndex

SID index value.

 

# Displays detailed static route next hop information.

<Sysname> display route-static nib verbose

Total number of nexthop(s): 44

 

      NibID: 0x11000000        Sequence: 0

       Type: 0x21               Flushed: Yes

   UserKey0: 0x111              VrfNthp: 0

   UserKey1: 0x0                Nexthop: 0.0.0.0

    IFIndex: 0x111            LocalAddr: 0.0.0.0

     NewUK0: 0x0                 NewUK1: 0x0

     NewUK2: 0x0                 NewUK3: 0x0

     NewUK4: 0x0                 NewUK5: 0x0

     NewUK6: 0x0                 NewUK7: 0x0

   TopoNthp: 0                  ExtType: 0x0

      Color: 0                   COFlag: 0x0

   SIDIndex: 0x0

     RefCnt: 2              FlushRefCnt: 0

       Flag: 0x2                Version: 1

 1 nexthop(s):

PrefixIndex: 0              OrigNexthop: 0.0.0.0

  RelyDepth: 0              RealNexthop: 0.0.0.0

  Interface: NULL0            LocalAddr: 0.0.0.0

  TunnelCnt: 0                      Vrf: default-vrf

   TunnelID: N/A               Topology: base

     Weight: 1000000              Flags: 0x0

SRPolicyNID: 4294967295     SRInterface:

ColorWeight: 0

 

      NibID: 0x11000001        Sequence: 1

       Type: 0x41               Flushed: Yes

   UserKey0: 0x0                VrfNthp: 5

   UserKey1: 0x0                Nexthop: 2.2.2.2

    IFIndex: 0x0              LocalAddr: 0.0.0.0

     NewUK0: 0x0                 NewUK1: 0x0

     NewUK2: 0x0                 NewUK3: 0x0

     NewUK4: 0x0                 NewUK5: 0x0

     NewUK6: 0x0                 NewUK7: 0x0

   TopoNthp: 0                  ExtType: 0x0

      Color: 0                   COFlag: 0x0

   SIDIndex: 0x0

     RefCnt: 1              FlushRefCnt: 0

       Flag: 0x12               Version: 1

 2 nexthop(s):

PrefixIndex: 0              OrigNexthop: 2.2.2.2

  RelyDepth: 7              RealNexthop: 8.8.8.8

  Interface: HGE1/0/1         LocalAddr: 12.12.12.12

  TunnelCnt: 0                      Vrf: default-vrf

   TunnelID: N/A               Topology: base

     Weight: 1000000

PrefixIndex: 0              OrigNexthop: 2.2.2.2

  RelyDepth: 9              RealNexthop: 0.0.0.0

  Interface: NULL0            LocalAddr: 0.0.0.0

  TunnelCnt: 0                      Vrf: default-vrf

   TunnelID: N/A               Topology: base

     Weight: 1000000              Flags: 0x0

SRPolicyNID: 4294967295     SRInterface:

ColorWeight: 0

 

...

Table 2 Command output

Field

Description

NibID

ID of the NIB.

Sequence

Sequence number of the NIB.

Type

Type of the NIB.

Flushed

Indicates whether the route with the NIB has been flushed to the FIB.

UserKey0

Reserved data 1.

VrfNthp

Index of the VPN instance that the next hop belongs to. This field displays 0 if the next hop is on the public network.

UserKey1

Reserved data 2.

Nexthop

Next hop address.

IFIndex

Interface index

LocalAddr

Local interface address.

NewUK0

New reserved data 1.

NewUK1

New reserved data 2.

NewUK2

New reserved data 3.

NewUK3

New reserved data 4.

NewUK4

New reserved data 5.

NewUK5

New reserved data 6.

NewUK6

New reserved data 7.

NewUK7

New reserved data 8.

TopoNthp

Index of the topology that contains the next hop. This field displays 0 if the next hop is on the public network.

ExtType

NIB extension type.

Color

Color extended community attribute.

COFlag

Flag of the color extended community attribute.

SIDIndex

SID index value.

RefCnt

Reference count of the next hop.

FlushRefCnt

Reference count of the next hop that is flushed to the FIB.

Flag

Flag of the next hop.

Version

Version of the next hop.

x nexthop(s)

Number of next hops.

PrefixIndex

Prefix index of the next hop for an ECMP route.

OrigNexthop

Original next hop.

RelyDepth

Recursion depth.

RealNexthop

Real next hop.

Interface

Output interface.

localAddr

Local interface address.

TunnelCnt

Number of tunnels after route recursion.

Vrf

VPN instance name. For the public network, this field displays default-vrf.

TunnelID

ID of the tunnel after route recursion.

Topology

Topology name. The topology name for the public network is base.

Weight

ECMP route weight. This field displays 0 for non-ECMP routes.

Flags

Flags of the detailed next hop.

SRPolicyNID

NIB ID of the route obtained from an SR-TE policy through route recursion.

SRInterface

Output interface of the route obtained from the SR-TE policy through route recursion.

ColorWeight

Weight value of the color attribute in the SR-TE policy.

 

display route-static routing-table

Use display route-static routing-table to display static routing table information.

Syntax

display route-static routing-table [ ip-address { mask-length | mask } ]

display route-static routing-table [ vpn-instance vpn-instance-name ] [ ip-address { mask-length | mask } ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

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 a VPN instance, the command displays static routing table information for the public network.

ip-address: Specifies the destination IP address in dotted decimal notation. If you do not specify this argument, the command displays all static routing table information.

mask-length: Specifies the mask length, an integer in the range of 0 to 32.

mask: Specifies the subnet mask in dotted decimal notation.

Examples

# Display static routing table information.

<Sysname> display route-static routing-table

Total number of routes: 24

 

Status: * - valid

 

*Destination: 0.0.0.0/0

       NibID: 0x1100000a         NextHop: 2.2.2.10

   MainNibID: N/A              BkNextHop: N/A

     BkNibID: N/A              Interface: HundredGigE1/0/1

     TableID: 0x2            BkInterface: HundredGigE1/0/2

        Flag: 0x82d01           BfdSrcIp: N/A

     DbIndex: 0xd             BfdIfIndex: 0x0

        Type: Normal         BfdVrfIndex: 0

  TrackIndex: 0xffffffff           Label: NULL

  Preference: 60             vrfIndexDst: 0

     BfdMode: N/A             vrfIndexNH: 0

   Permanent: 0                      Tag: 0

   BfdStatic: bfd01

 

 Destination: 0.0.0.0/0

       NibID: 0x1100000b         NextHop: 2.2.2.11

   MainNibID: N/A              BkNextHop: N/A

     BkNibID: N/A              Interface: HundredGigE1/0/3

     TableID: 0x2            BkInterface: HundredGigE1/0/4

        Flag: 0x82d01           BfdSrcIp: N/A

     DbIndex: 0xd             BfdIfIndex: 0x0

        Type: Normal         BfdVrfIndex: 0

  TrackIndex: 0xffffffff           Label: NULL

  Preference: 60             vrfIndexDst: 0

     BfdMode: N/A             vrfIndexNH: 0

   Permanent: 0                      Tag: 0

 

...

Table 3 Command output

Field

Description

destination

Destination address/prefix.

NibID

ID of the NIB.

MainNibID

ID of the primary next hop for static route FRR.

BkNibID

ID of the backup next hop for static route FRR.

NextHop

Next hop address.

BkNextHop

Backup next hop address.

Interface

Output interface of the route.

BkInterface

Backup output interface.

TableID

ID of the table to which the route belongs.

Flag

Flag of the route.

DbIndex

Index of the database to which the route belongs.

Type

Route type:

·     Normal.

·     DHCP.

·     IPsec.

BfdSrcIp

Source IP address of the indirect BFD session.

BfdIfIndex

Index of the interface where BFD is enabled.

BfdVrfIndex

Index of the VPN instance where BFD is enabled. This field displays 0 if BFD is enabled for the public network.

BfdMode

BFD session mode:

·     N/A—No BFD session is configured.

·     Ctrl—Control packet mode

·     Echo—Echo packet mode.

TrackIndex

NQA Track index.

vrfIndexDst

Index of VPN instance to which the destination belongs. For the public network, this field displays 0.

vrfIndexNH

Index of the VPN instance to which the next hop belongs. For the public network, this field displays 0.

Permanent

Permanent static route flag. 1 indicates a permanent static route.

BfdStatic

Name of the static BFD session associated with the route. This field is not displayed if no static BFD session has been associated with the route.

 

ip route-static

Use ip route-static to configure a static route.

Use undo ip route-static to delete a static route.

Syntax

ip route-static { dest-address { mask-length | mask } | group group-name } { interface-type interface-number [ next-hop-address [ nexthop-index index-string ] ] [ backup-interface interface-type interface-number [ backup-nexthop backup-nexthop-address ] [ permanent | track track-entry-number ] | bfd { control-packet | echo-packet | static session-name } | permanent | track track-entry-number ] | next-hop-address [ nexthop-index index-string ] [ recursive-lookup host-route ] [ bfd { control-packet bfd-source ip-address | static session-name } | permanent | track track-entry-number ] | vpn-instance d-vpn-instance-name next-hop-address [ nexthop-index index-string ] [ recursive-lookup host-route ] [ bfd { control-packet bfd-source ip-address | static session-name } | permanent | track track-entry-number ] } [ preference preference ] [ tag tag-value ] [ description text ]

ip route-static { dest-address { mask-length | mask } | group group-name } vpn-instance d-vpn-instance-name [ preference preference ] [ tag tag-value ] [ description text ]

undo ip route-static { dest-address { mask-length | mask } | group group-name } [ interface-type interface-number [ next-hop-address ] | next-hop-address | vpn-instance d-vpn-instance-name [ next-hop-address ] ] [ preference preference ]

Default

No static route is configured.

Views

System view

Predefined user roles

network-admin

Parameters

dest-address: Specifies the destination IP address of the static route, in dotted decimal notation.

mask-length: Specifies the mask length, an integer in the range of 0 to 32.

mask: Specifies the subnet mask in dotted decimal notation.

group group-name: Specifies a static route group by its name, a case-sensitive string of 1 to 31 characters.

vpn-instance d-vpn-instance-name: Specifies a destination MPLS L3VPN instance by its name, a case-sensitive string of 1 to 31 characters. If you do not specify the next-hop-address argument following this option, the device searches for the output interface in the specified destination VPN instance for packets matching the static route. If you specify the next-hop-address argument and this option, the device searches for the output interface in the specified destination VPN instance based on the specified next hop address for packets matching the static route.

interface-type interface-number: Specifies an output interface by its type and number. For more information, see Layer 3—IP Routing Configuration Guide.

next-hop-address: Specifies the IP address of the next hop, in dotted decimal notation. For more information, see Layer 3—IP Routing Configuration Guide.

nexthop-index index-string: Specifies the index of the next hop. The index-string argument represents the index, which is a case-insensitive string of 1 to 93 characters. If you do not specify an index for the next hop, the static route uses the output interface and the IP address of the next hop as the next hop index. Do not specify the same next hop index for routes to the same destination. This option is not supported by a static route group.

recursive-lookup host-route: Specifies only host routes for static route recursion.

backup-interface interface-type interface-number: Specifies a backup output interface by its type and number. If the backup output interface is an NBMA interface or broadcast interface and not a P2P interface, you must specify the backup next hop address.

backup-nexthop backup-nexthop-address: Specifies a backup next hop address.

bfd: Enables BFD to detect reachability of the static route's next hop. When the next hop is unreachable, the system immediately switches to the backup route. For more information about BFD, see High Availability Configuration Guide.

control-packet: Specifies the BFD control packet mode.

bfd-source ip-address: Specifies the source IP address of BFD packets. As a best practice, specify the loopback interface address.

echo-packet: Specifies the BFD echo packet mode.

static session-name: Associates the static route with a static BFD session. The session-name argument represents the static BFD session name, a case-sensitive string of 1 to 64 characters. If you specify a nonexistent static BFD session, you must create the static BFD session to have the association take effect.

permanent: Specifies the route as a permanent static route. If the output interface is down, the permanent static route is still active.

track track-entry-number: Associates the static route with a track entry specified by its number in the range of 1 to 1024. For more information about Track, see High Availability Configuration Guide.

preference preference: Specifies a preference for the static route, in the range of 1 to 255. The default is 60.

tag tag-value: Sets a tag value for marking the static route, in the range of 1 to 4294967295. The default is 0. Tags of routes are used for route control in routing policies. For more information about routing policies, see Layer 3—IP Routing Configuration Guide.

description text: Configures a description of 1 to 150 characters for the static route. The description can include special characters, such as the space, except the question mark (?).

Usage guidelines

If the destination IP address and the mask are both 0.0.0.0 (or 0), the configured route is a default route. The default route is used for forwarding a packet matching no entry in the routing table.

Implement different routing policies to configure different route preferences. For example, to enable load sharing for multiple routes to the same destination, assign the same preference to the routes. To enable the routes to back up one another, assign different preferences to them.

Follow these guidelines when you specify the output interface or the next hop address of the static route:

·     If the output interface is a Null 0 interface, no next hop address is required.

·     If the output interface is a point-to-point interface, you can specify only the output interface. You do not need to change the configuration of the route even if the peer address is changed.

·     NBMA or P2MP interfaces need IP address-to-link layer address mappings for successful packet delivery. As a best practice, specify the next hop address for the route at the same time if the output interface is an NBMA or P2MP interface.

·     If the output interface is a broadcast interface, the device uses the next hop IP address to obtain the MAC address of the next hop. Therefore, you must specify both the output interface and next hop IP address.

Follow these guidelines when you configure BFD for a static route:

·     To use a static BFD session to detect next hop reachability for a static route, you must perform the following tasks:

¡     Specify the IP address of the output interface of the static route as the source address of the static BFD session.

¡     Specify the IP address of the next hop of the static route as the peer address of the static BFD session.

·     Enabling BFD for a flapping route could worsen the route flapping situation. Therefore, use it with caution.

Follow these guidelines when you associate a static route with a track entry:

·     For static routing-Track-NQA collaboration, you must configure the same VPN instance ID for the next hop to be detected and the NQA operation.

·     If the static route needs route recursion, the associated track entry must monitor the next hop of the related route instead of that of the recursive static route. Otherwise, a valid route might be mistakenly considered invalid.

To specify the recursive-lookup host-route keyword, you must enable ARP direct route advertisement to advertise 32-bit host routes on the output interface corresponding to the next hop. To enable ARP direct route advertisement, use the arp route-direct advertise command.

If you specify a static route group, all prefixes in the static route group will be assigned the next hop and output interface specified by using this command.

Examples

# Configure a static route, whose destination address is 1.1.1.1/24, next hop address is 2.2.2.2, tag value is 45, and description information is for internet.

<Sysname> system-view

[Sysname] ip route-static 1.1.1.1 24 2.2.2.2 tag 45 description for internet

Related commands

arp route-direct advertise (Layer 3—IP Services Command Reference)

bfd static (High Availability Command Reference)

display ip routing-table protocol

ip route-static-group

prefix

ip route-static bfd

Use ip route-static bfd to configure BFD session parameters for a static route.

Use undo ip route-static bfd to restore the default.

Syntax

BFD control packet mode for single-hop detection and BFD echo packet mode:

ip route-static bfd interface-type interface-number next-hop-address { detect-multiplier detect-multiplier | min-echo-receive-interval min-echo-receive-interval | min-receive-interval min-receive-interval | min-transmit-interval min-transmit-interval } *

undo ip route-static bfd interface-type interface-number next-hop-address

BFD control packet mode for multihop detection:

ip route-static bfd [ vpn-instance d-vpn-instance-name ] next-hop-address source-ip ip-address { detect-multiplier detect-multiplier | min-receive-interval min-receive-interval | min-transmit-interval min-transmit-interval } *

undo ip route-static bfd [ vpn-instance d-vpn-instance-name ] next-hop-address

Default

No BFD session parameters are specifically configured for a static route. The static route uses the session parameters configured for the BFD module (common BFD session parameters).

Views

System view

Predefined user roles

network-admin

Parameters

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

vpn-instance d-vpn-instance-name: Specifies a destination MPLS L3VPN instance by its name, a case-sensitive string of 1 to 31 characters. If the next hop of the static route belongs to the public network, do not specify this option.

next-hop-address: Specifies the IP address of the next hop, in dotted decimal notation.

source-ip ip-address: Specifies a source IPv4 address for BFD packets, in dotted decimal notation.

detect-multiplier detect-multiplier: Sets the BFD detection time multiplier. The value range for the detect-multiplier argument is 3 to 50. The default value is 5.

min-echo-receive-interval min-echo-receive-interval: Sets the minimum interval for receiving BFD echo packets, in milliseconds. The value range for the min-echo-receive-interval argument is 10 to 10000.

min-receive-interval min-receive-interval: Sets the minimum interval for receiving BFD control packets, in milliseconds. The value range for the min-receive-interval argument is 10 to 10000.

min-transmit-interval min-transmit-interval: Sets the minimum interval for transmitting BFD control packets, in milliseconds. The value range for the min-transmit-interval argument is 10 to 10000.

Usage guidelines

Use this command to configure BFD session parameters for a static route, including parameters that determine the BFD detection time. The BFD detection time = detect-multiplier × max (min-echo-receive-interval, min-receive-interval, min-transmit-interval). For more information about the calculation method of BFD detection time, see BFD in High Availability Command Reference.

If you specify the output interface when executing this command, support for the BFD session parameters varies by BFD session mode.

·     Echo-mode BFD sessions support only the min-echo-receive-interval and detect-multiplier parameters.

·     Control-mode BFD sessions for single-hop detection support only the min-receive-interval, min-transmit-interval, and detect-multiplier parameters.

To apply the configured BFD session parameters, use one of the following combinations of parameters to specify a static route:

·     In control packet mode for single-hop detection and in echo packet mode, use the output interface and next hop address.

·     In control packet mode for multihop detection, use the next hop address and BFD packet source address. If the next hop belongs to a VPN instance, use the destination VPN instance, next hop address, and BFD packet source address to specify the static route.

For an unspecified BFD session parameter, the static route uses the value of the corresponding common BFD session parameter.

Examples

# Configure BFD session parameters for the static route with output interface HundredGigE 1/0/1 and next hop 1.2.3.4. The BFD detection time multiplier is 20 and the minimum interval for receiving BFD echo packets is 1000 milliseconds.

<Sysname> system-view

[Sysname] ip route-static bfd hundredgige 1/0/1 1.2.3.4 detect-multiplier 20 min-echo-receive-interval 1000

ip route-static default-preference

Use ip route-static default-preference to configure a default preference for static routes.

Use undo ip route-static default-preference to restore the default.

Syntax

ip route-static default-preference default-preference

undo ip route-static default-preference

Default

The default preference of static routes is 60.

Views

System view

Predefined user roles

network-admin

Parameters

default-preference: Specifies a default preference for static routes, in the range of 1 to 255.

Usage guidelines

If no preference is specified for a static route, the default preference applies.

When the default preference is reconfigured, it applies only to newly added static routes.

Examples

# Set a default preference of 120 for static routes.

<Sysname> system-view

[Sysname] ip route-static default-preference 120

Related commands

display ip routing-table protocol

ip route-static fast-reroute auto

Use ip route-static fast-reroute auto to configure static route FRR to automatically select a backup next hop.

Use undo ip route-static fast-reroute auto to disable static route FRR from automatically selecting a backup next hop.

Syntax

ip route-static fast-reroute auto

undo ip route-static fast-reroute auto

Default

Static route FRR is disabled from automatically selecting a backup next hop.

Views

System view

Predefined user roles

network-admin

Examples

# Configure static route FRR to automatically select a backup next hop.

<Sysname> system-view

[Sysname] ip route-static fast-reroute auto

ip route-static primary-path-detect bfd echo

Use ip route-static primary-path-detect bfd echo to enable BFD echo packet mode for static route FRR.

Use undo ip route-static primary-path-detect bfd to disable BFD echo packet mode for static route FRR.

Syntax

ip route-static primary-path-detect bfd echo

undo ip route-static primary-path-detect bfd

Default

BFD echo packet mode for static route FRR is disabled.

Views

System view

Predefined user roles

network-admin

Usage guidelines

This command enables static route FRR to use BFD echo packet mode for fast failure detection on the primary link.

Examples

# Enable BFD echo packet mode for static route FRR.

<Sysname> system-view

[Sysname] ip route-static 1.1.1.1 32 hundredgige 1/0/1 2.2.2.2 backup-interface hundredgige 1/0/2 backup-nexthop 3.3.3.3

[Sysname] ip route-static primary-path-detect bfd echo

ip route-static recursive-lookup tunnel

Use ip route-static recursive-lookup tunnel to allow static routes to recurse to LSP tunnels.

Use undo ip route-static recursive-lookup tunnel to restore the default.

Syntax

ip route-static recursive-lookup tunnel [ prefix-list ipv4-prefix-list-name ] [ tunnel-policy tunnel-policy-name ]

undo ip route-static recursive-lookup tunnel

Default

Static routes cannot recurse to LSP tunnels.

Views

System view

Predefined user roles

network-admin

Parameters

prefix-list ipv4-prefix-list-name: Specifies an IPv4 prefix list by its name, a case-sensitive string of 1 to 63 characters. Only static routes filtered by the specified IPv4 prefix list can recurse to LSP tunnels. If you do not specify an IPv4 prefix list, this command allows all static routes to recurse to LSP tunnels.

tunnel-policy tunnel-policy-name: Specifies a tunnel policy by its name, a case-sensitive string of 1 to 19 characters. Static routes can recurse only to LSP tunnels that match the specified tunnel policy. If you do not specify a tunnel policy, this command allows static routes to recurse to any LSP tunnels.

Usage guidelines

By default, a static route can recurse only to output interfaces and next hops based on IP forwarding. This command allows the device to preferentially recurse static routes to LSP tunnels. If a static route cannot recurse to an LSP tunnel, the device recurses the static route to an output interface and next hop based on IP forwarding.

If you execute this command multiple times, the most recent configuration takes effect.

Examples

# Enable the device to recurse static routes to LSP tunnels.

<Sysname> system-view

[Sysname] ip route-static recursive-lookup tunnel

ip route-static vpn-instance

Use ip route-static vpn-instance to configure a static route in a VPN instance.

Use undo ip route-static to delete a static route from a VPN instance.

Syntax

ip route-static vpn-instance s-vpn-instance-name dest-address { mask-length | mask } interface-type interface-number [ next-hop-address [ nexthop-index index-string ] ] [ backup-interface interface-type interface-number [ backup-nexthop backup-nexthop-address ] ] [ permanent | track track-entry-number ] [ preference preference ] [ tag tag-value ] [ description text ]

ip route-static vpn-instance s-vpn-instance-name dest-address { mask-length | mask } { public | vpn-instance d-vpn-instance-name } [ preference preference ] [ tag tag-value ] [ description text ]

ip route-static vpn-instance s-vpn-instance-name dest-address { mask-length | mask } vpn-instance d-vpn-instance-name next-hop-address [ nexthop-index index-string ] [ recursive-lookup host-route ] [ bfd { control-packet bfd-source ip-address | static session-name } | permanent | track track-entry-number ] [ preference preference ] [ tag tag-value ] [ description text ]

ip route-static vpn-instance s-vpn-instance-name dest-address { mask-length | mask } next-hop-address [ nexthop-index index-string ] [ recursive-lookup host-route ] [ public ] [ bfd { control-packet bfd-source ip-address | static session-name } | permanent | track track-entry-number ] [ preference preference ] [ tag tag-value ] [ description text ]

ip route-static vpn-instance s-vpn-instance-name group group-name interface-type interface-number [ next-hop-address [ bfd { control-packet | echo-packet | static session-name } | backup-interface interface-type interface-number [ backup-nexthop backup-nexthop-address ] | permanent | track track-entry-number ] ] [ permanent | track track-entry-number ] [ preference preference ] [ tag tag-value ] [ description text ]

ip route-static vpn-instance s-vpn-instance-name group group-name vpn-instance d-vpn-instance-name next-hop-address [ recursive-lookup host-route ] [ bfd { control-packet bfd-source ip-address | static session-name } | permanent | track track-entry-number ] [ preference preference ] [ tag tag-value ] [ description text ]

ip route-static vpn-instance s-vpn-instance-name group group-name next-hop-address [ recursive-lookup host-route ] [ public ] [ bfd { control-packet bfd-source ip-address | static session-name } | permanent | track track-entry-number ] [ preference preference ] [ tag tag-value ] [ description text ]

ip route-static vpn-instance s-vpn-instance-name group group-name { public | vpn-instance d-vpn-instance-name } [ preference preference ] [ tag tag-value ] [ description text ]

undo ip route-static vpn-instance s-vpn-instance-name { dest-address { mask-length | mask } | group group-name } [ interface-type interface-number [ next-hop-address ] | next-hop-address [ public ] | public | vpn-instance d-vpn-instance-name [ next-hop-address ] ] [ preference preference ]

Default

No static route is configured in a VPN instance.

Views

System view

Predefined user roles

network-admin

Parameters

s-vpn-instance-name: Specifies a source MPLS L3VPN instance by its name, a case-sensitive string of 1 to 31 characters. Each VPN instance has its own routing table, and the configured static route is installed in the routing tables of the specified VPN instances.

dest-address: Specifies the destination IP address of the static route, in dotted decimal notation.

mask-length: Specifies the mask length, an integer in the range of 0 to 32.

mask: Specifies the subnet mask in dotted decimal notation.

group group-name: Specifies a static route group by its name, a case-sensitive string of 1 to 31 characters.

vpn-instance d-vpn-instance-name: Specifies a destination MPLS L3VPN instance by its name, a case-sensitive string of 1 to 31 characters. If you do not specify the next-hop-address argument following this option, the device searches for the output interface in the specified destination VPN instance for packets matching the static route. If you specify the next-hop-address argument and this option, the device searches for the output interface in the specified destination VPN instance based on the specified next hop address for packets matching the static route.

interface-type interface-number: Specifies an output interface by its type and number. For more information, see Layer 3—IP Routing Configuration Guide.

next-hop-address: Specifies the IP address of the next hop, in dotted decimal notation. For more information, see Layer 3—IP Routing Configuration Guide.

nexthop-index index-string: Specifies the index of the next hop. The index-string argument represents the index, which is a case-insensitive string of 1 to 93 characters. If you do not specify an index for the next hop, the static route uses the output interface and the IP address of the next hop as the next hop index. Do not specify the same next hop index for routes to the same destination.

recursive-lookup host-route: Specifies only host routes for static route recursion.

backup-interface interface-type interface-number: Specifies a backup output interface by its type and number. If the backup output interface is a non-P2P interface (for example, an NBMA interface or broadcast interface), you must specify the backup next hop address.

backup-nexthop backup-nexthop-address: Specifies a backup next hop address.

bfd: Enables BFD to detect reachability of the static route's next hop. When the next hop is unreachable, the system immediately switches to the backup route. For more information about BFD, see High Availability Configuration Guide.

control-packet: Specifies the BFD control packet mode.

bfd-source ip-address: Specifies the source IP address of BFD packets. As a best practice, specify the loopback interface address.

echo-packet: Specifies the BFD echo packet mode.

static session-name: Associates the static route with a static BFD session. The session-name argument represents the static BFD session name, a case-sensitive string of 1 to 64 characters. If you specify a nonexistent static BFD session, you must create the static BFD session to have the association take effect.

permanent: Specifies the route as a permanent static route. If the output interface is down, the permanent static route is still active.

track track-entry-number: Associates the static route with a track entry specified by its number in the range of 1 to 1024. For more information about Track, see High Availability Configuration Guide.

public: Specifies the public network. If you specify this keyword following the next-hop-address argument, the next hop is on the public network. The device searches for the output interface in the public network based on the next hop address for packets matching the static route. If you specify the next-hop-address argument without specifying the public keyword, the device searches for the output interface in the source VPN instance based on the next hop address for packets matching the static route. If you specify the public keyword without specifying the next-hop-address argument, the device searches for the output interface in the public network for packets matching the static route.

preference preference: Specifies a preference for the static route, in the range of 1 to 255. The default is 60.

tag tag-value: Sets a tag value for marking the static route, in the range of 1 to 4294967295. The default is 0. Tags of routes are used for route control in routing policies. For more information about routing policies, see Layer 3—IP Routing Configuration Guide.

description text: Configures a description of 1 to 150 characters for the static route. The description can include special characters, such as the space, except the question mark (?).

Usage guidelines

If the destination IP address and the mask are both 0.0.0.0 (or 0), the configured route is a default route. The default route is used for forwarding a packet matching no entry in the routing table.

Implement different routing policies to configure different route preferences. For example, to enable load sharing for multiple routes to the same destination, assign the same preference to the routes. To enable the routes to back up one another, assign different preferences to them.

If you specify a destination VPN instance but do not specify a next hop address, the source and destination VPN instances cannot be the same one.

Follow these guidelines when you specify the output interface or the next hop address of the static route:

·     If the output interface is a Null 0 interface, no next hop address is required.

·     If the output interface is a point-to-point interface, you can specify only the output interface. You do not need to change the configuration of the route even if the peer address is changed.

·     NBMA or P2MP interfaces need IP address-to-link layer address mappings for successful packet delivery. As a best practice, specify the next hop address for the route at the same time if the output interface is an NBMA or P2MP interface.

·     If the output interface is a broadcast interface (for example, an Ethernet interface or VLAN interface), the device uses the next hop IP address to obtain the MAC address of the next hop. Therefore, you must specify both the output interface and next hop IP address.

Follow these guidelines when you configure BFD for a static route:

·     To use a static BFD session to detect next hop reachability for a static route, the static BFD session and the next hop of the static route must belong to the same VPN instance. In addition, you must perform the following tasks:

¡     Specify the IP address of the output interface of the static route as the source address of the static BFD session.

¡     Specify the IP address of the next hop of the static route as the peer address of the static BFD session.

·     Enabling BFD for a flapping route could worsen the route flapping situation. Therefore, use it with caution.

Follow these guidelines when you associate a static route with a track entry:

·     For static routing-Track-NQA collaboration, you must configure the same VPN instance ID for the next hop to be detected and the NQA operation.

·     If the static route needs route recursion, the associated track entry must monitor the next hop of the related route instead of that of the recursive static route. Otherwise, a valid route might be mistakenly considered invalid.

If you specify a static route group, all prefixes in the static route group will be assigned the next hop and output interface specified by using this command.

Examples

# Configure a static route in VPN instance vpn1, whose destination address is 1.1.1.1/24, next hop address is 2.2.2.2 in VPN instance vpn2, tag value is 45, and description information is for internet.

<Sysname> system-view

[Sysname] ip route-static vpn-instance vpn1 1.1.1.1 24 vpn-instance vpn2 2.2.2.2 tag 45 description for internet

Related commands

display ip routing-table protocol

ip route-static-group

prefix

ip route-static-group

Use ip route-static-group to create a static route group and enter its view, or enter the view of an existing static route group.

Use undo ip route-static-group to delete a static route group.

Syntax

ip route-static-group group-name

undo ip route-static-group group-name

Default

No static route groups exist.

Views

System view

Predefined user roles

network-admin

Parameters

group-name: Specifies the static route group name, a case-sensitive string of 1 to 31 characters.

Examples

# Create static route group test and enter its view.

<Sysname> system-view

[Sysname] ip route-static-group test

[Sysname-route-static-group-test]

Related commands

ip route-static

prefix

prefix

Use prefix to add a static route prefix to a static route group.

Use undo prefix to delete a static route prefix from a static route group.

Syntax

prefix dest-address { mask-length | mask }

undo prefix dest-address { mask-length | mask }

Default

No static route prefix is added to a static route group.

Views

Static route group view

Predefined user roles

network-admin

Parameters

dest-address: Specifies the destination IP address of the static route, in dotted decimal notation.

mask-length: Specifies the mask length, an integer in the range of 0 to 32.

mask: Specifies the subnet mask in dotted decimal notation.

Usage guidelines

Execute this command repeatedly to add multiple static route prefixes to a static route group.

After you add static route prefixes to a static route group, you can specify that group in the ip route-static group command to configure static routes with the prefixes. To configure more static routes, you only need to add new static route prefixes to the group.

Examples

# Add static route prefix 1.1.1.1/32 to static route group test.

<Sysname> system-view

[Sysname] ip route-static-group test

[Sysname-route-static-group-test] prefix 1.1.1.1 32

Related commands

ip route-static

ip route-static-group

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