Users Guide

Table Of Contents
Name PortID Prio Cost Sts Cost Bridge ID PortID
-----------------------------------------------------------------------------------------
--
ethernet1/1/7 128.56 128 500 FWD 500 32769 90b1.1cf4.a625 128.56
BPDU guard
os10(config)# interface ethernet 1/1/7
os10(conf-if-eth1/1/7)# spanning-tree bpduguard enable
os10(conf-if-eth1/1/7)# do show spanning-tree interface ethernet 1/1/7
ethernet1/1/7 of vlan 1 is Designated Forwarding
Edge port: No (default)
Link type: point-to-point (auto)
Boundary: No, Bpdu-filter: Enable, Bpdu-Guard: Enable, Shutdown-on-Bpdu-Guard-violation:
Yes
Root-Guard: Disable, Loop-Guard: Disable
Bpdus (MRecords) Sent: 6, Received: 6410
Interface Designated
Name PortID Prio Cost Sts Cost Bridge ID
PortID
-----------------------------------------------------------------------------------------
----
ethernet1/1/7 128.56 128 500 FWD 500 32769 90b1.1cf4.a625
128.56
Loop guard
OS10(config)# interface ethernet 1/1/4
OS10(conf-if-eth1/1/4)# spanning-tree guard loop
OS10(conf-if-eth1/1/4)# do show spanning-tree interface ethernet 1/1/4
ethernet1/1/4 of vlan1 is root Forwarding
Edge port:no (default) port guard :none (default)
Link type is point-to-point (auto)
Boundary: NO bpdu filter : bpdu guard : bpduguard shutdown-on-
violation :disable RootGuard: disable LoopGuard enable
Bpdus (MRecords) sent 7, received 20
Interface Designated
Name PortID Prio Cost Sts Cost Bridge ID PortID
-------------------------------------------------------------------------
ethernet1/1/4 128.272 128 500 FWD 0 32769 90b1.1cf4.9d3b 128.272
Root guard
os10(conf-if-eth1/1/7)# spanning-tree guard root
os10(conf-if-eth1/1/7)# do show spanning-tree interface ethernet 1/1/7
ethernet1/1/7 of vlan 1 is Designated Forwarding
Edge port: No (default)
Link type: point-to-point (auto)
Boundary: No, Bpdu-filter: Enable, Bpdu-Guard: Enable, Shutdown-on-Bpdu-Guard-violation:
Yes
Root-Guard: Enable, Loop-Guard: Disable
Bpdus (MRecords) Sent: 6, Received: 6410
Interface Designated
Name PortID Prio Cost Sts Cost Bridge ID
PortID
-----------------------------------------------------------------------------------------
----
ethernet1/1/7 128.56 128 500 FWD 500 32769 90b1.1cf4.a625
128.56
Recover from BPDU guard violations
1. When there is BPDU guard violation on a port, OS10 either shuts down the port or moves it to BLOCKED state. Use the
following command in CONFIGURATION mode to shutdown the port. The no version of the command moves the port to
BLOCKED state.
errdisable detect cause bpduguard
596
Layer 2