STP/RSTP/MSTP Topology Analyzer

Also available in 40 other languages
./ar ./de ./es ./fr ./hi ./id ./it ./ja ./ko ./nl ./pt ./ru ./tr ./zh ./az ./bg ./ca ./cs ./da ./el ./eo ./et ./eu ./fa ./fi ./gl ./he ./hu ./lt ./nb ./pl ./sk ./sl ./sq ./sv ./th ./uk ./ur ./vi ./zh_tw

STP / RSTP / MSTP Topology Analyzer

Paste CLI output from one or more switches to visualize spanning tree topology, detect port roles, and identify hazards.

Switch 1
What to paste: Output of show spanning-tree (Cisco), show spanning-tree detail (Juniper / Aruba), or show stpd detail (ExtremeXOS). Add multiple switches to see cross-switch topology and detect MSTP region mismatches. Supported protocols: STP (802.1D), RSTP (802.1w), MSTP (802.1s), PVST+, Rapid-PVST+.

Related tools

IPv4 Subnet Calc IPv6 Subnet Calc Subnet Planning Tool MAC OUI Lookup PoE Budgeter LACP Hash Distribution