Breakout Interface

Diagram

Classes

switches (vxlan.topology)

Name	Type	Constraint	Mandatory	Default Value
interface_breakouts	List	`[interface_breakouts]`	No

interface_breakouts (vxlan.topology.switches)

Name	Type	Constraint	Mandatory	Default Value
module	Integer	min: `0`, max: `32`	No	`1`
from	Integer	min: `0`, max: `256`	No	`1`
to	Integer	min: `0`, max: `256`	No	`1`
map	Choice	`10g-4x`, `25g-4x`, `50g-2x`, `50g-4x`, `100g-2x`, `100g-2x-pam4`, `100g-4x`, `200g-2x`	No	`10g-4x`
enable_during_bootstrap	Boolean	`true`, `false`	No	`false`

Example 1

Starting with release 0.4.3, breakout interfaces can be configured.

In the following example the command interface breakout module 1 port 49,51-52 map 10g-4x is used on Cisco Nexus switches to split specific high-bandwidth physical ports into multiple lower-speed interfaces. Here’s what it means in detail:

Module 1: Refers to the line card or module number in the switch chassis.
Ports 49, 51-52: Specifies the individual ports on the module to be broken out.
map 10g-4x: Indicates that each specified port, which is originally a single 40G port, will be split into four separate 10G interfaces.

This feature is available on multiple Nexus platforms; however, the supported breakout modes may vary based on the specific hardware and NX-OS version. Please consult your switch’s data sheet to confirm the supported configurations. Nexus 9000 serie switches Data Sheets

interface breakout module 1 port 49,51-52 map 10g-4x


interface Ethernet1/49/1
  description trunk breakout eth1/49/1
  switchport
  switchport mode trunk
  switchport trunk allowed vlan none
  spanning-tree port type edge trunk
  mtu 9216
  no shutdown

interface Ethernet1/49/2
  switchport
  switchport mode trunk
  switchport trunk allowed vlan none
  spanning-tree port type edge trunk
  mtu 9216
  no shutdown

interface Ethernet1/49/3
  switchport
  switchport mode trunk
  switchport trunk allowed vlan none
  spanning-tree port type edge trunk
  mtu 9216
  no shutdown

interface Ethernet1/49/4
  switchport
  switchport mode trunk
  switchport trunk allowed vlan none
  spanning-tree port type edge trunk
  mtu 9216
  no shutdown

interface Ethernet1/50
  switchport
  switchport mode trunk
  switchport trunk allowed vlan none
  spanning-tree port type edge trunk
  mtu 9216
  no shutdown

interface Ethernet1/51/1
  switchport
  switchport mode trunk
  switchport trunk allowed vlan none
  spanning-tree port type edge trunk
  mtu 9216
  no shutdown

interface Ethernet1/51/2
  description trunk breakout eth1/51/2
  switchport
  spanning-tree port type edge
  mtu 9216
  no shutdown

interface Ethernet1/51/3
  switchport
  switchport mode trunk
  switchport trunk allowed vlan none
  spanning-tree port type edge trunk
  mtu 9216
  no shutdown

interface Ethernet1/51/4
  switchport
  switchport mode trunk
  switchport trunk allowed vlan none
  spanning-tree port type edge trunk
  mtu 9216
  no shutdown

interface Ethernet1/52/1
  switchport
  switchport mode trunk
  switchport trunk allowed vlan none
  spanning-tree port type edge trunk
  mtu 9216
  no shutdown

interface Ethernet1/52/2
  switchport
  switchport mode trunk
  switchport trunk allowed vlan none
  spanning-tree port type edge trunk
  mtu 9216
  no shutdown

interface Ethernet1/52/3
  description trunk breakout eth1/52/3
  switchport
  spanning-tree port type edge
  mtu 9216
  no shutdown

interface Ethernet1/52/4
  switchport
  switchport mode trunk
  switchport trunk allowed vlan none
  spanning-tree port type edge trunk
  mtu 9216
  no shutdown

---
vxlan:
  topology:
    switches:
      - name: dc1-leaf1
        role: leaf
        management:
          default_gateway_v4: 172.16.0.254
          management_ipv4_address: 172.16.0.6
          subnet_mask_ipv4: 24
        serial_number: AAAAAAAAAA
        interface_breakouts:
          - module: 1
            from: 49
            map: 10g-4x
          - module: 1
            from: 51
            to: 52
            map: 10g-4x
        interfaces:
          - name: Ethernet1/49/1
            mode: trunk
            description: 'trunk breakout eth1/49/1'
            enabled: true
            mtu: jumbo
            speed: auto
            spanning_tree_portfast: true
            enable_bpdu_guard: true
          - name: Ethernet1/51/2
            mode: access
            description: 'access breakout eth1/51/2'
            enabled: true
            mtu: jumbo
            speed: auto
            spanning_tree_portfast: true
            enable_bpdu_guard: true
          - name: Ethernet1/52/3
            mode: access
            description: 'access breakout eth1/52/3'
            enabled: true
            mtu: jumbo
            speed: auto
            spanning_tree_portfast: true
            enable_bpdu_guard: true