Cisco vs Juniper: Troubleshooting Commands Cheat Sheet

2026年9月1日 LOG admin

Engineers who work in multi-vendor environments constantly translate between Cisco IOS and Juniper Junos commands. This cheat sheet maps the most common troubleshooting commands side by side - management, routing table, BGP, IS-IS, and support collection - so you can diagnose the same problem on either platform without fumbling for syntax.

Management Commands

Cisco IOS	Juniper Junos	Description
show tech-support	request support information \| save /var/tmp/RSI.txt	Collect support info for TAC
show version	show system uptime	Uptime and version
show processes cpu sorted	show chassis routing-engine	CPU utilization
show processes memory	show system processes extensive	Memory utilization
show users	show system users	Connected users
clear line X	request system logout user ABC	Disconnect a user

Routing Table

Cisco IOS	Juniper Junos	Description
show ip route	show route	Routing table
show ip cef	show route forwarding-table	Forwarding table
show ip route connected	show route protocol direct	Directly connected routes
show ip route static	show route protocol static	Static routes
-	show route hidden	Hidden routes (invalid next-hop etc.)

BGP Troubleshooting

Cisco IOS	Juniper Junos	Description
show ip bgp summary	show bgp summary	BGP neighbor summary
show ip bgp neighbor A.A.A.A advertised	show route advertising-protocol bgp A.A.A.A	Routes advertised to a peer
show ip bgp neighbor A.A.A.A received	show route receive-protocol bgp A.A.A.A	Routes received from a peer
show ip bgp	show route protocol bgp	BGP routes

IS-IS Commands

Cisco IOS	Juniper Junos	Description
show clns interface	show isis interface	IS-IS enabled interfaces
show clns neighbors	show isis adjacency	Protocol adjacencies
show isis database	show isis database	LSDB summary
show isis database verbose	show isis database extensive	Detailed LSDB
show ip route isis	show route protocol isis	IS-IS learned routes

Logs and Files

Cisco IOS	Juniper Junos	Description
show logging	show log messages	System logs
dir bootflash:	file list	Directory listing
-	show system core-dumps	Crash files / core dumps
show running-config	show configuration	Active configuration

The command families are conceptually identical - show vs show, show ip route vs show route - so translating between them is mostly about knowing the Junos protocol/table keywords.

原文链接：https://www.bgphelp.com/2017/02/17/cisco-juniper-troubleshooting-commands

作者：admin

链接：https://gitgit.ee/cisco-vs-juniper-troubleshooting-commands-cheat-sheet.html

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