| name | pyats-junos-interfaces |
| description | JunOS interface operations via pyATS — physical/logical interfaces, LACP, CoS, LLDP, ARP, BFD, IPv6 neighbors, traffic monitoring, optics diagnostics. Use when checking Juniper interface status, auditing LACP members, inspecting optics power levels, or reviewing ARP and LLDP neighbors. |
| license | Apache-2.0 |
| user-invocable | true |
| metadata | {"openclaw":{"requires":{"bins":["python3"],"env":["PYATS_TESTBED_PATH"]}}} |
JunOS Interface Operations via pyATS
How to Call
PYATS_TESTBED_PATH=$PYATS_TESTBED_PATH python3 $MCP_CALL "${PYATS_PYTHON:-python3} -u $PYATS_MCP_SCRIPT" pyats_run_show_command '{"device_name":"juniper-rtr-01","command":"<command>"}'
Commands
Interface Status
All Interfaces — Summary
pyats_run_show_command '{"device_name":"juniper-rtr-01","command":"show interfaces terse"}'
Compact table: interface name, admin/oper status, protocol, address. Fastest way to check up/down state across all interfaces.
All Interfaces — Full
pyats_run_show_command '{"device_name":"juniper-rtr-01","command":"show interfaces"}'
Full interface details: physical properties, speed, MTU, MAC, traffic stats, error counters.
All Interfaces — Descriptions
pyats_run_show_command '{"device_name":"juniper-rtr-01","command":"show interfaces descriptions"}'
Interface descriptions only — useful for verifying circuit IDs and peer identifiers. Also: show interfaces descriptions ge-0/0/0.
All Interfaces — Statistics
pyats_run_show_command '{"device_name":"juniper-rtr-01","command":"show interfaces statistics"}'
Input/output bytes, packets, errors, drops across all interfaces. Also: show interfaces statistics ge-0/0/0.
All Interfaces — Extensive
pyats_run_show_command '{"device_name":"juniper-rtr-01","command":"show interfaces extensive"}'
Maximum detail including MAC stats, filter stats, CoS queuing stats, logical interfaces. Also: show interfaces extensive no-forwarding.
Specific Interface
pyats_run_show_command '{"device_name":"juniper-rtr-01","command":"show interfaces ge-0/0/0"}'
pyats_run_show_command '{"device_name":"juniper-rtr-01","command":"show interfaces ge-0/0/0 detail"}'
pyats_run_show_command '{"device_name":"juniper-rtr-01","command":"show interfaces ge-0/0/0 extensive"}'
pyats_run_show_command '{"device_name":"juniper-rtr-01","command":"show interfaces ge-0/0/0 terse"}'
Terse with Match (Filter)
pyats_run_show_command '{"device_name":"juniper-rtr-01","command":"show interfaces terse | match ge-0/0"}'
Filter interface list to a specific FPC/PIC slot.
Interface Policers & Queues
pyats_run_show_command '{"device_name":"juniper-rtr-01","command":"show interfaces policers ge-0/0/0"}'
pyats_run_show_command '{"device_name":"juniper-rtr-01","command":"show interfaces queue ge-0/0/0"}'
Optics Diagnostics
pyats_run_show_command '{"device_name":"juniper-rtr-01","command":"show interfaces diagnostics optics"}'
pyats_run_show_command '{"device_name":"juniper-rtr-01","command":"show interfaces diagnostics optics ge-0/0/0"}'
SFP/XFP/QSFP optical power levels (tx/rx dBm), laser bias current, temperature, voltage. Critical for detecting failing optics — low rx power indicates fiber or SFP issue.
LACP (Link Aggregation)
pyats_run_show_command '{"device_name":"juniper-rtr-01","command":"show lacp interfaces ae0"}'
pyats_run_show_command '{"device_name":"juniper-rtr-01","command":"show lacp statistics interfaces ae0"}'
LACP state, actor/partner system ID, port priority, key, member link status. Statistics show LACP PDU tx/rx counts and errors.
Class of Service
pyats_run_show_command '{"device_name":"juniper-rtr-01","command":"show class-of-service interface ge-0/0/0"}'
CoS configuration and queue mapping for a specific interface — forwarding class, scheduler, transmit rate.
LLDP Neighbors
pyats_run_show_command '{"device_name":"juniper-rtr-01","command":"show lldp"}'
LLDP neighbor table — remote system, port, chassis ID. Cross-reference with pyats-topology for neighbor discovery.
ARP Table
pyats_run_show_command '{"device_name":"juniper-rtr-01","command":"show arp"}'
pyats_run_show_command '{"device_name":"juniper-rtr-01","command":"show arp no-resolve"}'
pyats_run_show_command '{"device_name":"juniper-rtr-01","command":"show arp | no-more"}'
ARP cache: MAC address, IP address, interface. no-resolve skips DNS lookups (faster). | no-more disables paging.
IPv6 Neighbors
pyats_run_show_command '{"device_name":"juniper-rtr-01","command":"show ipv6 neighbors"}'
IPv6 NDP neighbor table — link-layer address, state (reachable/stale/incomplete), interface.
BFD Sessions
pyats_run_show_command '{"device_name":"juniper-rtr-01","command":"show bfd session"}'
pyats_run_show_command '{"device_name":"juniper-rtr-01","command":"show bfd session address 10.1.1.2 detail"}'
pyats_run_show_command '{"device_name":"juniper-rtr-01","command":"show bfd session address 10.1.1.2 extensive"}'
pyats_run_show_command '{"device_name":"juniper-rtr-01","command":"show ppm transmissions protocol bfd detail"}'
BFD session state, interval, multiplier, neighbor. Use for fast-failover validation on OSPF/BGP/LDP sessions.
Traffic Monitoring
pyats_run_show_command '{"device_name":"juniper-rtr-01","command":"monitor interface traffic"}'
Real-time interface traffic rates — bytes/sec, packets/sec per interface. Note: This is a streaming command; pyATS will capture a snapshot.
Workflows
1. JunOS Interface Health Check
show interfaces terse → identify down interfaces
→ show interfaces extensive {down_intf} → error counters, drops
→ show interfaces diagnostics optics {intf} → optical power levels
→ show lldp → verify expected neighbors
→ Severity-sort (down=CRITICAL, errors=WARNING, low optics=WARNING)
→ GAIT
2. LACP Audit
show interfaces terse | match ae → identify LAG interfaces
→ show lacp interfaces {ae_intf} → member status, actor/partner
→ show lacp statistics interfaces {ae_intf} → PDU counters, errors
→ show interfaces {ae_intf} extensive → aggregate stats
→ Flag: missing members, LACP mismatches, PDU errors
→ GAIT
3. Optics Fleet Scan
pyats_list_devices → identify JunOS devices (parallel)
→ show interfaces diagnostics optics per device
→ Flag: rx power < -20 dBm (WARNING), < -25 dBm (CRITICAL)
→ Cross-reference SFP serial numbers with NetBox
→ GAIT
4. ARP/Neighbor Audit
show arp no-resolve → collect ARP table
→ show ipv6 neighbors → collect NDP table
→ Cross-reference with NetBox/Nautobot IPAM → flag unknown MACs
→ show lldp → verify physical neighbors match expected topology
→ GAIT
Integration with Other Skills
| Skill | Integration |
|---|
| pyats-junos-system | Chassis/system context for interface issues (FPC/PIC status) |
| pyats-junos-routing | Routing protocol status complements interface state |
| junos-network | JunOS MCP for config changes; pyATS for operational verification |
| pyats-topology | LLDP + ARP data feeds topology discovery |
| netbox-reconcile | Cross-reference interface IPs, MACs, optics serials with NetBox |
| pyats-parallel-ops | pCall pattern for fleet-wide interface audits |
| gait-session-tracking | Every command logged in GAIT |
Guardrails
- All commands are read-only — show and monitor commands only
- No interface config changes — never use
set interfaces via this skill
- Cross-reference optics — always compare diagnostic values against vendor specifications
- Record in GAIT — every command execution must be logged
