HP procurve 8100fl series Management And Configuration Manual page 136

Spanning-Tree Operation
Configuring MSTP
9-20
Syntax: [no] spanning-tree < edge-port | mcheck >
[ edge-port ]
Enable edge-port on ports connected to end nodes. During
spanning tree establishment, ports with edge-port enabled
transition immediately to the forwarding state. Disable this
feature on any switch port that is connected to another switch,
bridge, or hub. (Default: No - disabled)
The no spanning-tree edge-port command disables edge-port
operation on the specified ports.
[ mcheck ]
Forces a port to send RSTP BPDUs for 3 seconds. This allows for
another switch connected to the port and running RSTP to
establish its connection quickly and for identifying switches
running 802.1D STP. If the whole-switch force-version
parameter is set to stp-compatible, the switch ignores the mcheck
setting and sends 802.1D STP BPDUs out all ports. Disable this
feature on all ports that are known to be connected to devices that
are running 802.1D STP. (Default: Yes - enabled)
The no spanning-tree mcheck command disables mcheck.
Syntax: spanning-tree < hello-time | path-cost | point-to-point-mac | priority >
[ hello-time < global | 1 - 10 >]
When the switch is the CIST root, this parameter specifies the
interval (in seconds) between periodic BPDU transmissions by
the designated port. This interval also applies to all ports in all
switches downstream from the port. A setting of global indicates
that the port(s) on the CIST root are using the value set by the
global spanning-tree hello-time value (page 9-18). When a given
switch "X" is not the CIST root, the per-port hello-time for all active
ports on switch "X" is propagated from the CIST root, and is the
same as the hello-time in use on the CIST root port in the currently
active path from switch "X" to the CIST root. (That is, when
switch "X" is not the CIST root, then the upstream CIST root's
port hello-time setting overrides the hello-time setting configured
on switch "X". (Default Per-Port setting: Use Global. Default
Global Hello-Time: 2.)
[ path-cost < auto | 1..200000000 > ]
Assigns an individual port cost that the switch uses to determine
which ports are forwarding ports in a given spanning tree. In
the default configuration ( auto ) the switch determines a port's
path-cost by the port's speed:
– 100 Mbps: 200000
– 1 Gbps: 20000
– 10 Gbps: 2000
Refer to
compatibility with devices running 802.1D STP for the path-cost
values (Default: Auto.).
"Note on Path Cost" on page 9-14 for information on