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Diffstat (limited to 'docs/vpp/configuration/interfaces/md-loopback.md')
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diff --git a/docs/vpp/configuration/interfaces/md-loopback.md b/docs/vpp/configuration/interfaces/md-loopback.md deleted file mode 100644 index 844892a3..00000000 --- a/docs/vpp/configuration/interfaces/md-loopback.md +++ /dev/null @@ -1,148 +0,0 @@ ---- -lastproofread: '2026-03-13' ---- - -(vpp-config-interfaces-loopback)= - -```{include} /_include/need_improvement.txt -``` - - -# VPP Loopback Interface Configuration - -VPP loopback interfaces provide virtual interfaces that remain -administratively up and are commonly used for stable addressing, -routing protocols, and as Bridge Virtual Interfaces (BVI). Loopback -interfaces in VPP offer high-performance virtual connectivity with optimized -packet processing. - -## Basic Configuration - -### Creating a Loopback Interface - -```{cfgcmd} set interfaces vpp loopback \<vpploN\> - -Create a loopback interface where ``<vpploN>`` follows the naming -convention ``vpplo1``, ``vpplo2``, etc. -``` - -**Basic Example:** - -```none -set interfaces vpp loopback vpplo1 -``` - -## Interface Configuration -### Description and Administrative Control - -```{cfgcmd} set interfaces vpp loopback \<vpploN\> description \<description\> - -Set a descriptive name for the loopback interface. -``` - -```{cfgcmd} set interfaces vpp loopback \<vpploN\> disable - -Administratively disable the loopback interface. -``` - -### Kernel Interface Integration - -Kernel interface is bound to the VPP loopback interface for management -and application compatibility. - -## IP Address Configuration - -```{cfgcmd} set interfaces vpp loopback \<vpploN\> address \<ip-address/prefix\> - -Configure IPv4 or IPv6 addresses on the kernel interface. Multiple -addresses can be assigned. -``` - -**Examples:** - -```none -# IPv4 address -set interfaces vpp loopback vpplo1 address 192.168.1.10/24 - -# IPv6 address -set interfaces vpp loopback vpplo1 address 2001:db8::10/64 -``` - -## MTU Configuration - -```{cfgcmd} set interfaces vpp loopback \<vpploN\> mtu \<size\> - -Set the Maximum Transmission Unit (MTU) for the kernel interface. -The MTU must be compatible with the connected VPP interface. -``` - -## VLAN Configuration - -VPP kernel interfaces support VLAN (Virtual LAN) sub-interfaces for network -segmentation. - -### Creating VLAN Sub-interfaces - -```{cfgcmd} set interfaces vpp loopback \<vpploN\> vif \<vlan-id\> - -Create a VLAN sub-interface with the specified VLAN ID (0-4094). -``` - -### VLAN Sub-interface Configuration - -VLAN sub-interfaces support the same configuration options as the parent -interface: - -```{cfgcmd} set interfaces vpp loopback \<vpploN\> vif \<vlan-id\> address \<ip-address/prefix\> -``` - -```{cfgcmd} set interfaces vpp loopback \<vpploN\> vif \<vlan-id\> description \<description\> -``` - -```{cfgcmd} set interfaces vpp loopback \<vpploN\> vif \<vlan-id\> disable -``` - -```{cfgcmd} set interfaces vpp loopback \<vpploN\> vif \<vlan-id\> mtu \<size\> -``` - -**Examples:** - -```none -# Configure VLAN 100 -set interfaces vpp loopback vpplo1 vif 100 address 192.168.100.1/24 -set interfaces vpp loopback vpplo1 vif 100 description "Management VLAN" -set interfaces vpp loopback vpplo1 vif 100 mtu 1500 - -# Configure VLAN 200 -set interfaces vpp loopback vpplo1 vif 200 address 192.168.200.1/24 -set interfaces vpp loopback vpplo1 vif 200 description "Guest VLAN" -``` - -## Configuration Examples -### Basic Loopback Interface - -```none -# Create simple loopback -set interfaces vpp loopback vpplo1 -set interfaces vpp loopback vpplo1 description "Router ID interface" -``` - -### Loopback with Kernel Interface - -```none -# Loopback with management access -set interfaces vpp loopback vpplo2 -set interfaces vpp loopback vpplo2 description "Management loopback" -set interfaces vpp loopback vpplo2 address 10.255.255.1/32 -``` - -### Bridge Virtual Interface (BVI) - -```none -# Loopback as BVI for bridge -set interfaces vpp loopback vpplo3 -set interfaces vpp loopback vpplo3 description "Bridge gateway interface" -set interfaces vpp bridge vppbr1 -set interfaces vpp bridge vppbr1 member interface vpplo3 bvi -set interfaces vpp loopback vpplo3 address 192.168.100.1/24 -``` |