IP Addresses and Services Configuration Guide for Cisco 8000 Series Routers, IOS XR Releases
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IP Addresses and Services Configuration Guide for Cisco 8000 Series Routers, IOS XR Releases
Updated: August 12, 2026
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Explains how downloaded Border Gateway Protocol (BGP) attributes become visible in CEF and how global or local attribute identifiers select a specific installed attribute for inspection.
Border Gateway Protocol (BGP) attribute download is a CEF capability that
makes installed BGP attributes visible through CEF commands
identifies attributes by a BGP attribute ID, and
supports lookup by a local attribute ID.
Inspect the BGP attributes that CEF installed.
Display all installed BGP attributes.
Router# show cef bgp-attribute
VRF: default
_____________
Table ID: 0xe0000000. Total number of entries: 1
OOR state: GREEN. Number of OOR attributes: 0
BGP Attribute ID: 0x6, Local Attribute ID: 0x1
Aspath : 2
Community :
Origin AS : 2
Next Hop AS : 2To inspect one attribute, select it by its BGP attribute ID or local attribute ID.
Use show cef bgp-attribute attribute-id or show cef bgp-attribute local-attribute-id command.
The output identifies installed attributes and their resource state.
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