Cisco Nexus 6000 Series NX-OS Unicast Routing Command Reference
S Commands
Downloads: This chapterpdf (PDF - 96.0KB) The complete bookPDF (PDF - 7.33MB) | Feedback

Table of Contents

S Commands

set interface

set ip next-hop

set ipv6 next-hop

S Commands

This chapter describes the Cisco NX-OS Policy Based Routing (PBR) commands that begin with S, except for the show commands.

set interface

To configure an interface to be used for routing, use the set interface command. To revert to the default settings, use the no form of this command.

set interface [ null 0 ]

no set interface [ null 0 ]

 
Syntax Description

null 0

(Optional) Specifies the null interface. The valid value is 0.

 
Command Default

None

 
Command Modes

Route-map
network-admin

 
Command History

Release
Modified

6.0(2)N2(1)

This command was introduced.

 
Usage Guidelines

The set interface command is used only for policy-based routing (PBR) and is ignored if it is present in a route map that is used for route redistribution or filtering. To remove the static routing for tunnels, use the no set interface command.

When you enter the Null 0 keywords, packets drop.

This command does not require a license.

Examples

This example shows how to configure an interface to be used for routing:

switch# configure terminal
switch(config)# route-map routemap 123
switch(config-route-map)# set interface
 
Command
Description

route-map

Defines the conditions for redistributing routes from one routing protocol into another.

set ip next-hop

To configure a route map that sets the next-hop IPv4 address, use the set ip next-hop command. To delete an entry, use the no form of this command.

set ip next-hop { ip-address [... ip - address ]}

no set ip next-hop { ip-address [... ip - address ]}

 
Syntax Description

ip address

IP address of the next hop to which packets are output. The next-hop does not need to be adjacent router. You can configure one or more IP addresses.

 
Command Default

This command is disabled by default.

 
Command Modes

network-admin
vdc-admin

 
Command History

Release
Modified

6.0(2)N2(1)

This command was introduced.

 
Usage Guidelines

An ellipsis (...) in the command syntax indicates that your command input can include multiple values for the ip-address argument.

Use the ip policy route-map command and the match and set commands to define the conditions for policy routing packets. The ip policy route-map command identifies a route map by name. Each route-map command has a list of match and set commands associated with it. The match commands specify the match criteria—the conditions under which policy routing occurs. The set commands specify the set actions—the particular routing actions to perform if the criteria enforced by the match commands are met.

If the first next hop specified with the set ip next-hop command is down, the optionally specified IP addresses are tried in turn.

This command does not require a license.

Examples

This example shows three routers are on the same LAN (with IP addresses 10.1.1.1, 10.1.1.2, and 10.1.1.3). Each is in a different autonomous system:

switch(config)# router bgp 64498
switch(config-router)# neighbor 10.1.1.3 remote-as 64496
switch(config-router)# neighbor 10.1.1.1 remote-as 64497

 

Command
Description

ip policy route-map

Identifies a route map to use for policy routing on an interface.

match ip address

Distributes any routes that have a destination network number address that is permitted by a standard, and performs policy routing on packets.

set ipv6 next-hop

To indicate where to output packets that pass a match clause of a route map for policy routing, use the set ipv6 next-hop command in route-map configuration mode. To delete an entry, use the no form of this command.

set ipv6 next-hop { ipv6-address [... ipv6 - address ]}

no set ipv6 next-hop { ipv6-address [... ip v6- address ]}

 
Syntax Description

ipv6 address

IPv6 address of the next hop to which packets are output. It need not be an adjacent router. You can configure one or more IP addresses.

 
Command Default

This command is disabled by default.

 
Command Modes

Route-map configuration (config-route-map)

 
Supported User Roles

network-admin
vdc-admin

 
Command History

Release
Modified

6.0(2)N2(1)

This command was introduced.

 
Usage Guidelines

An ellipsis (...) in the command syntax indicates that your command input can include multiple values for the ip-address argument.

Use the ipv6 policy route-map command and the match and set commands to define the conditions for policy routing packets. The ipv6 policy route-map command identifies a route map by name. Each route-map command has a list of match and set commands associated with it. The match commands specify the match criteria—the conditions under which policy routing occurs. The set commands specify the set actions—the particular routing actions to perform if the criteria enforced by the match commands are met.

If the first next hop specified with the set ipv6 next-hop command is down, the optionally specified IP addresses are tried in turn.

This command does not require a license.

Examples

This example shows how to configure a route map that sets the IPv6 next-hop address:

switch(config)# ipv6 access-list test
switch(config-ipv6-acl)# permit ipv6 2001:0DB8::/48 any
switch(config-ipv6-acl)# exit
switch(config)# route-map equal-access

switch(config-route-map)# match ipv6 address test

switch(config-route-map)# set ipv6 next-hop 2001:0DB8::3

switch(config-route-map))# exit

switch(config)# interface externet 2/1

switch(config-if)# ipv6 policy route-map equal-access

 

Command
Description

match ipv6 address

Distributes any routes that have a destination network number address that is permitted by a standard or expanded access list, and performs policy routing on packets.

match ipv6 next-hop

Redistributes any routes that have a next-hop router address passed by one of the access lists specified.

route-map

Defines the conditions for redistributing routes from one routing protocol into another, or enables policy routing.