BLADE OS™ Command Reference HP GbE2c L2/L3 Ethernet Blade Switch Version 5.1 Advanced Functionality Software

BLADE OS 5.1 Command Reference
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 Chapter 4: The Information Menu BMD00114, August 2009
/info/l2/stp
Spanning Tree Information
The switch software uses the IEEE 802.1D Spanning Tree Protocol (STP). If IEEE 802.1w Rapid
Spanning Tree Protocol (RSTP), the IEEE 802.1s Multiple Spanning Tree Protocol (MSTP), or Per
VLAN Rapid Spanning Tree Protocol (PVRST) are turned on, see “RSTP/MSTP Information” on
page 86.
When STP is used, in addition to seeing if STG is enabled or disabled, you can view the following
STG bridge information:
------------------------------------------------------------------
upfast disabled, update 40
Pvst+ compatibility mode enabled
------------------------------------------------------------------
Spanning Tree Group 1: On (STP/PVST+)
VLANs: 1
Current Root: Path-Cost Port Hello MaxAge FwdDel
ffff 00:13:0a:4f:7d:d0 0 21 2 20 15
Parameters: Priority Hello MaxAge FwdDel Aging
65534 2 20 15 300
Port Priority Cost FastFwd State Designated Bridge Des Port
---- -------- ---- -------- ----------- ----------------- -------
1 0 0 n FORWARDING *
2 0 0 n FORWARDING *
3 0 0 n FORWARDING *
...
* = STP turned off for this port.
! = Automatic path cost.
Table 26 Spanning Tree Parameter Descriptions
Parameter Description
Current Root The Current Root shows information about the root bridge for the
Spanning Tree. Information includes the priority (in hexadecimal format)
and MAC address of the root.
Priority (bridge) The bridge priority parameter controls which bridge on the network will
become the STG root bridge.