Scope
One client, one interface, a group, a board, a device or the whole site?
Cisco · NOC · TROUBLESHOOTING
Troubleshooting Cisco
Operational triage focused on evidence collection, fault-domain isolation and safe escalation.
cisco://troubleshooting
$ vendor: Cisco
$ method: evidence → isolate → validate
$ safety: read before change_
Platform rule: Identify IOS XE, NX-OS or IOS XR before applying platform-specific commands.
01 · TRIAGE
Isolate before changing
Determine scope, affected services and recent changes before acting.
Physical layer
Check link state, optics, errors, power and remote side.
Control plane
Correlate CPU, memory, logs and protocol adjacency.
Recent change
Validate maintenance, configuration and software events.
02 · REFERENCE COMMANDS
Collect state before intervention
Confirm command availability and syntax for the installed release.
| Command | Purpose |
|---|---|
show version | Platform and software |
show interfaces | Interfaces and counters |
show logging | System logs |
show ip ospf neighbor | OSPF neighbors |
show bgp summary | BGP summary |
03 · ESCALATION
Send evidence, not only symptoms
Exact model and software release Timestamp and timezone Affected scope Logs and alarms Interface/optical counters Relevant configuration Recent changes Actions already performed