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Interfaces and Hardware Component Configuration Guide for Cisco 8000 Series Routers, Cisco IOS XR Releases

How does management traffic isolation impact routing table performance?
Can management interfaces be used for data plane traffic in emergencies?
What security risks exist when enabling remote management on these ports?

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Interfaces and Hardware Component Configuration Guide for Cisco 8000 Series Routers, Cisco IOS XR Releases

How does management traffic isolation impact routing table performance?
Can management interfaces be used for data plane traffic in emergencies?
What security risks exist when enabling remote management on these ports?

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About this content

YANG Data Models for Interfaces and Hardware Component

Using YANG Data Models

Physical interfaces preconfiguration

Interface preconfigurations
Benefits of physical interface preconfiguration
Configuration guidelines for physical interface preconfiguration
Restrictions for physical interface preconfiguration
Preconfigure a physical interface

Management ethernet interface

Management ethernet interface configuration
Requirements for configuring Management Ethernet interfaces
Default Management Ethernet interface settings
Configure a Management Ethernet interface

Ethernet interfaces

Ethernet interface configuration
Prerequisites for configuring Ethernet interfaces
Ethernet interface fundamentals
Network interface speed and autonegotiation
Interfaces and subinterfaces on the router
Layer 2 VPN on Ethernet interfaces
Carrier delay on physical interfaces
Interface statistics

MTU

Ethernet MTU
IP MTU

LLDP

Link Layer Discovery Protocol
Enable LLDP globally
Enable LLDP per interface
Configure global LLDP operational characteristics
Disable transmission of optional LLDP TLVs
Disable LLDP receive and transmit operation for an interface
Enable LLDP snoop
LLDP interface configuration verification

Configure Ethernet Link OAM

Ethernet Link OAM configuration
Configuration guidelines for Ethernet Link OAM
Configure an Ethernet OAM profile
Ethernet OAM configuration and management examples

Configure Ethernet CFM

Ethernet CFM
Configure AIS in a CFM domain service
Configure AIS on a CFM interface
Verify the CFM configuration
CFM over bundles

Configure Ethernet Performance Monitoring

Ethernet SLA statistics measurement in a profile
Configure Ethernet SLA statistics measurement in a profile
Ethernet frame delay measurement for L2VPN services
Minimum delay bin

Configure Unidirectional Link Detection

Unidirectional Link Detection protocol
Configure UDLD

Configure Advanced Fault Propagation

Link Loss Forwarding
Configure link loss forwarding for CFM
Configure link loss forwarding for Layer 2 transport

Configure Integrated Routing and Bridging

Integrated Routing and Bridging
Configuration guidelines and restrictions for IRB
Prerequisites to configure IRB
Configure BVI
Configure Layer 2 AC interfaces
Configure a bridge group and assign interfaces to a bridge domain
Associate BVI as a routed Interface on a bridge domain
Display information about BVI
IRB configuration examples

Configure IP event dampening

IP event dampening
Guidelines and limitations for IP event dampening
Enable IP event dampening

Link bundling

Link bundling
Configure link bundling

Virtual loopback and null interfaces

Prerequisites for configuring virtual interfaces
Virtual loopback interface
Null interface
Virtual management interface
Active and standby RPs and virtual interface configuration
Configure virtual loopback interfaces
Configure null interfaces
Configure virtual IPv4 interfaces

GRE Tunnels

GRE tunnels
GRE encapsulation and decapsulation over BVI
Unidirectional GRE encapsulation (GREv4)
Unidirectional GRE decapsulation (GREv4)
ECMP and LAG hashing for NVGRE flows
Network Virtualization using Generic Routing Encapsulation hash field selections

802.1Q VLAN interfaces

Prerequisites for configuring 802.1Q VLAN interfaces
802.1Q VLAN
Subinterfaces
Subinterface MTU
Native VLAN
Layer 2 VPN on VLANs
Configure 802.1Q VLAN subinterfaces
Configure an attachment circuit on a VLAN
Remove an 802.1Q VLAN subinterface
VLAN subinterfaces example
Layer 2 interface VLAN encapsulation using VLAN ranges and lists

IP-in-IP tunnels

IP-in-IP tunnels
Control the TTL value of inner payload header
Time-to-Live uniform mode
IP-in-IP decapsulation
Hashing for load balancing
ECMP hashing support for load balancing

Generic UDP encapsulation

Generic UDP encapsulation
Flexible assignment of UDP port numbers for decapsulation
GUEv1 static tunnel configuration over IPv4 networks
Unidirectional GUEv6 for IPv6 traffic

Interfaces and Hardware Component Configuration Guide for Cisco 8000 Series Routers, Cisco IOS XR Releases

Requirements for configuring Management Ethernet interfaces

Updated: July 31, 2026

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This topic lists the prerequisites and conditions you must meet before configuring a Management Ethernet interface.

Before you perform the Management Ethernet interface configuration procedure, ensure that you meet these requirements:

You have performed the initial configuration of the Management Ethernet interface.
You know how to apply the generalized interface name specification rack/slot/module/port .

Note

For transparent switchover, ensure that both the active and standby Management Ethernet interfaces are physically connected to the same LAN or switch.

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