11.2. BIER Configuration Command Reference

11.2.1. Command Hierarchies

  1. Configuration Commands

11.2.1.1. Configuration Commands

config
— router
— [no] bier
— [no] shutdown
— [no] template template-name
— [no] shutdown
— [no] sub-domain sub-domain
— [no] sub-domain start sub-domain end sub-domain
— [no] bfr-id bfr-id
— mt {ipv4-unicast | ipv4-multicast}
— no mt
— prefix ip-address
— no prefix

11.2.2. Command Descriptions

11.2.2.1. BIER Commands

bier

Syntax 
[no] bier
Context 
config>router
Description 

This command enters the context to configure BIER.

shutdown

Syntax 
[no] shutdown
Context 
config>router>bier
config>router>bier>template
Description 

This command shuts down BIER or a BIER template.The no form of this command enables BIER or the BIER template.

template

Syntax 
[no] template template-name
Context 
config>router>bier
Description 

This command creates a BIER template to be assigned to IGP.

The no form of this command removes a specific template.

Parameters 
template-name—
The name of the template to be created or removed, up to 32 characters.

sub-domain

Syntax 
[no] sub-domain sub-domain
[no] sub-domain start sub-domain end sub-domain
Context 
config>router>bier>template
Description 

This command creates a BIER sub-domain or range of sub-domains. For example, for IS-IS each sub-domain is associated with a single IS-IS topology, which may be any of the topologies supported by IS-IS.

The no form of this command removes a sub-domain.

Default 

sub-domain 0

Parameters 
sub-domain—
The ID of the sub-domain to be created or removed.
Values—
0 to 255

 

bfr-id

Syntax 
bfr-id bfr-id
no bfr-id
Context 
config>router>bier>template>sub-domain
Description 

This command specifies the BIER-ID for this sub-domain. BIER-IDs should be assigned sequentially as the SI and BIER bit position are driven by the IDs. The equation used to drive BIER SI and bit positions from the ID is as follows:

SI = (BFR-id -1) /BitStringLength

bit position = ((BFR-id -1) modulo BitStringLength

If the BIER-ID is sequential then the all bit positions in a bit string length will be utilized before moving on to the next SetID (SI).

BFR ID configuration is only necessary for BFIR and BFER, and not for transit BFRs

The no form of this command removes the BIER-ID.

Parameters 
bfr-id—
The BIER-ID of the router.
Values—
1 to 4096

 

mt

Syntax 
mt {ipv4-unicast | ipv4-multicast}
no mt
Context 
config>router>bier>template>sub-domain
Description 

This command specifies the multi-topology for this sub-domain.

The no form of this command removes the multi-topology from this sub-domain.

Parameters 
ipv4-unicast—
Specifies that the sub-domain uses IPv4 unicast topology. IPv4 unicast imports routes into the unicast RTM.
ipv4-multicast—
Specifies that the sub-domain uses IPv4 multicast topology. IPv4 multicast imports routes into the multicast RTM.

prefix

Syntax 
prefix ip-address
no prefix
Context 
config>router>bier>template>sub-domain
Description 

This command specifies the prefix used for BFR. The prefix should be an IPv4 /32 address. The prefix can be a loopback interface or system IP address.

The no form of this command removes the prefix.

Parameters 
ip-address—
Specifies the IP address to be used as the BFR prefix in dotted decimal format.