Cisco IOS-XR Command Reference

address-family ipv4 unicast

Configures IPv4 unicast address family parameters within IS-IS routing process on Cisco IOS-XR.

IS-IS Config

circuit-type level-2-only

Configures the IS-IS interface to operate as a Level-2-only circuit, disabling Level-1 adjacency formation on that interface.

IS-IS Interface Config

interface [intf]

Enters interface configuration mode under IS-IS to apply interface-specific IS-IS parameters.

IS-IS Config

net [NSAP-address]

Configures a NET (Network Entity Title) for IS-IS routing on Cisco IOS-XR.

IS-IS Config

router isis [instance]

Enters IS-IS router configuration mode for a specific IS-IS instance, allowing configuration of IS-IS routing protocol parameters.

Global Config

show isis database

Displays the contents of the IS-IS link-state database (LSDB) on Cisco IOS-XR, showing all LSPs and their details.

EXEC

show isis neighbor

Displays IS-IS neighbor adjacencies and their state on Cisco IOS-XR.

EXEC

interface [intf]

Enables MPLS LDP on a specific interface and enters MPLS LDP interface configuration mode.

MPLS LDP Config

mpls ldp

Enters MPLS LDP configuration mode to enable and configure Label Distribution Protocol parameters.

Global Config

mpls traffic-eng

Enables MPLS Traffic Engineering (MPLS-TE) and enters MPLS-TE configuration submode on Cisco IOS-XR.

Global Config

show mpls forwarding-table

Displays the MPLS forwarding table, showing label bindings and next-hop information for label-switched paths.

EXEC

show mpls label range

Displays the configured and allocated MPLS label ranges on the router.

EXEC

show mpls ldp neighbor

Displays the status of Label Distribution Protocol (LDP) neighbors and their session information.

EXEC

address-family ipv4 unicast

Activates IPv4 unicast address family configuration under a BGP neighbor, enabling the exchange of IPv4 unicast routes.

BGP Neighbor Config

neighbor [ip]

Configures a BGP neighbor and enters neighbor configuration mode on Cisco IOS-XR.

BGP Config

remote-as [asn]

Configures the remote AS number for a BGP neighbor in Cisco IOS-XR.

BGP Neighbor Config

route-policy [name] [in|out]

Applies a route-policy to filter or modify BGP routes on incoming or outgoing updates for a specific address family.

BGP AF Config

router bgp [asn]

Enters BGP configuration mode for a specified autonomous system number on Cisco IOS-XR.

Global Config

show bgp ipv4 unicast neighbors

Displays detailed information about BGP IPv4 unicast neighbors, including session state, capabilities, and statistics.

EXEC

show bgp ipv4 unicast summary

Displays a summary of BGP IPv4 unicast peering sessions, including neighbor status, prefixes received, and memory usage.

EXEC

area [id]

Configures an OSPF area and enters OSPF area configuration mode on Cisco IOS-XR.

OSPF Config

interface [intf]

Configures OSPF interface parameters under the OSPF area configuration mode on Cisco IOS-XR.

OSPF Area Config

router ospf [process-id]

Enters OSPF router configuration mode for a specified process, enabling OSPF routing protocol configuration on Cisco IOS-XR.

Global Config

router-id [ip]

Sets the OSPF router ID for the OSPF process on Cisco IOS-XR.

OSPF Config

show ospf database

Displays the OSPF link-state database (LSDB) for a specified OSPF process or all processes.

EXEC

show ospf neighbor

Displays OSPF neighbor information, including neighbor state, interface, and adjacency details.

EXEC

if destination in [prefix-set] then

Applies route policy actions if the destination prefix matches any prefix in a specified prefix-set.

Route Policy Config

prefix-set [name]

Defines a named set of IPv4 or IPv6 prefixes for use in routing policy language (RPL) configurations.

Global Config

route-policy [name]

Defines or modifies a route policy, which is used to control routing information (e.g., BGP attributes, redistribution) based on match conditions and set actions.

Global Config

router static address-family ipv4 unicast [prefix/len] [nh]

Configures a static route in the IPv4 unicast routing table.

Global Config

set local-preference [value]

Sets the BGP local preference value for routes matching the route policy, influencing the best path selection within an AS.

Route Policy Config

set med [value]

Sets the MULTI_EXIT_DISC (MED) attribute for BGP routes in a route policy.

Route Policy Config

show route

Displays the current routing table entries on Cisco IOS-XR, including directly connected, static, and dynamic routes.

EXEC

show route summary

Displays a summary of the routing table, including route counts by protocol and table statistics.

EXEC

show interfaces

Displays detailed status and statistics for all interfaces or a specific interface on Cisco IOS-XR.

EXEC

show ipv4 interface brief

Displays a summary of all IPv4 interfaces on the router, including their status, protocol, and IP address.

EXEC

show ipv6 interface brief

Displays a brief summary of IPv6 interface status and configuration, including IPv6 addresses and operational state.

EXEC

admin

Enters the administration mode (admin plane) from XR EXEC mode to perform system-level configuration and maintenance tasks.

EXEC

commit

Commits the candidate configuration to the running configuration in Cisco IOS-XR.

Config

commit label [name]

Assigns a label to a configuration commit for easier identification and rollback.

Config

rollback configuration last [n]

Rolls back the configuration to a previous commit point, reverting changes made in the last N commits.

EXEC

show configuration commit list

Displays the list of committed configuration changes with commit IDs, labels, timestamps, and user information.

EXEC

show platform

Displays the hardware and software inventory of all line cards, modules, and their operational status on a Cisco IOS-XR router.

EXEC

show processes cpu

Displays CPU utilization statistics for all processes running on the Cisco IOS-XR router.

EXEC

show running-config

Displays the current running configuration of the Cisco IOS-XR device.

EXEC

show version

Displays system hardware and software information, including IOS-XR version, uptime, and hardware components.

EXEC

ping [ip]

Tests basic network connectivity to a remote host by sending ICMP echo requests and waiting for replies.

EXEC

show logging

Displays the contents of the system logging buffer, including syslog messages generated by the router.

EXEC

traceroute [ip]

Traces the route packets take to a destination IP address, showing each hop and round-trip time.

EXEC