Displays the STP (Spanning Tree Protocol) state of a port.
| stpd_name | Specifies an STPD (Spanning Tree Domain) name. |
| port_list | Specifies one or more ports or slots and ports. |
| detail | Specifies more detailed information about one or more ports of the STPD. |
N/A.
STPD port configuration.
STPD port encapsulation mode.
STPD path cost.
STPD priority.
STPD state (root bridge, and so on).
Port role (root designated, alternate and so on).
STPD port state (forwarding, blocking, and so on).
Configured port link type.
Operational port link type.
Edge port settings (inconsistent behavior, edge safeguard setting).
Restricted role (enabled, disabled).
MSTP (Multiple Spanning Tree Protocol) port role (internal or boundary).
Active port role.
To display more detailed information for one or more ports in the specified STPD, including participating VLANs, specify the detail option.
MSTP internal path cost.
MSTP timers.
If your STPD has the same name as another component, for example a VLAN (Virtual LAN), Extreme Networks recommends that you specify the identifying keyword as well as the name. If you do not specify the stpd keyword, an error message similar to the following is displayed:
%% Ambiguous command: "show Test ports"In this example, to view all of the port settings of STPD Test, enter show stpd Test ports.
If your STPD has a name unique only to that STPD, the keyword stpd is optional.
The following command displays the state of ports 1, 2, and 4 on an STPD named s1:
show stpd s1 ports
The following is sample output from this command:
Port Mode State Cost Flags Priority Port ID Designated Bridge 1 EMISTP DISABLED 200000 e?pp-w---t 128 8001 00:00:00:00:00:00:00:00 2 EMISTP DISABLED 200000 e?pp-w---- 128 8002 00:00:00:00:00:00:00:00 4 EMISTP DISABLED 200000 e?pp-w---- 128 8004 00:00:00:00:00:00:00:00 Total Ports: 3 ------------------------- Flags: ---------------------------- 1: e=Enable, d=Disable 2: (Port role) R=Root, D=Designated, A=Alternate, B=Backup, M=Master 3: (Config type) b=broadcast, p=point-to-point, e=edge, a=auto 4: (Oper. type) b=broadcast, p=point-to-point, e=edge 5: p=proposing, a=agree 6: (partner mode) d = 802.1d, w = 802.1w, m = mstp 7: i = edgeport inconsistency 8: S = edgeport safe guard active s = edgeport safe guard configured but inactive 8: G = edgeport safe guard bpdu restrict active in 802.1w and mstp g = edgeport safe guard bpdu restrict active in 802.1d 9: B = Boundary, I = Internal 10: r = Restricted Role, t = active Role
The following command displays the detailed information for port 2 in STPD s0:
show stpd s0 ports 2 detail
The following is sample output from this command:
show stpd s0 ports 2 detail Stpd: s0 Port: 2 PortId: 8002 Stp: ENABLED Path Cost: 4 Port Mode : 802.1D Port Role : ---- Port State : FORWARDING Topology Change Ack: FALSE Port Priority : 16 Designated Root : 00:00:00:00:00:00:00:00 Designated Cost: 0 Designated Bridge : 00:00:00:00:00:00:00:00 Designated Port Id: 0 Partner STP version : Dot1d Restricted Role : Disabled Active Role : Disabled Edge Port Safe Guard : Disabled Bpdu Restrict : Disabled Restricted TCN : Off Loop Protect : Off Loop Protect Partner : Incapable Operational Edge : FALSE Auto Edge : On Participating Vlans: Default
The following is sample output from this command:
Port Mode State Cost Flags Priority Port ID Designated Bridge 9 EMISTP FORWARDING 20000 eDeepw-G-- 128 8009 80:00:00:04:96:1f:a8:48 Total Ports: 1 ------------------------- Flags: ---------------------------- 1: e=Enable, d=Disable 2: (Port role) R=Root, D=Designated, A=Alternate, B=Backup, M=Master 3: (Config type) b=broadcast, p=point-to-point, e=edge, a=auto 4: (Oper. type) b=broadcast, p=point-to-point, e=edge 5: p=proposing, a=agree 6: (partner mode) d = 802.1d, w = 802.1w, m = mstp 7: i = edgeport inconsistency 8: S = edgeport safe guard active s = edgeport safe guard configured but inactive G = edgeport safe guard bpdu restrict active g = edgeport safe guard bpdu restrict configured but inactive only dot1w, mstp 9: B = Boundary, I = Internal 10: r = Restricted Role, t = active role
This command was first available in ExtremeXOS 10.1.
Information about MSTP was added in ExtremeXOS 11.4.
Information about BPDU Restrict was added in ExtremeXOS 12.4.
Information about active role was added in ExtremeXOS 12.5.
This command is available on the Summit X450-G2, X460-G2, X670-G2, X770, and ExtremeSwitching X440-G2, X620, X690, X870 series switches.
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