Cist Port Configuration - HP 438031-B21 - 1:10Gb Ethernet BL-c Switch Cli Reference Manual

CIST port configuration

CIST port parameters are used to modify MRST operation on an individual port basis. CIST parameters do
not affect operation of STP/PVST.
For each port, CIST is turned on by default. Port parameters include:
Port priority
Port path cost
Port Hello time
Link type
Edge
On and off
Current port configuration
The port option of MRST is turned on by default.
The following table describes the commands used to configure CIST Port Configuration commands.
CIST Port Configuration commands
Table 107
Command
spanning-tree mstp cist
interface-priority {<0-240>}
spanning-tree mstp cist path-
cost {<1-200000000>}
spanning-tree mstp cist hello
{<1-10>}
spanning-tree mstp cist link-
type {auto|p2p|shared}
Description
Configures the CIST port priority. The port priority helps determine
which bridge port becomes the designated port. In a network
topology that has multiple bridge ports connected to a single segment,
the port with the lowest port priority becomes the designated port for
the segment. The range is 0 to 240, in steps of 16 (0, 16, 32...), and
the default value is 128.
Command mode: Interface port
Configures the CIST port path cost. The port path cost is used to help
determine the designated port for a segment. Generally speaking, the
faster the port, the lower the path cost. The default value for Gigabit
ports is 20000, and for 10Gb ports is 2000.
Command mode: Interface port
Configures the CIST port Hello time. The Hello time specifies how
often the root bridge transmits a configuration bridge protocol data
unit (BPDU). Any bridge that is not the root bridge uses the root bridge
Hello value. The range is 1 to 10 seconds, and the default value is
2 seconds.
Command mode: Interface port
Defines the type of link connected to the port, as follows:
auto—Configures the port to detect the link type, and
automatically match its settings.
p2p—Configures the port for Point-To-Point protocol.
shared—Configures the port to connect to a shared medium
(usually a hub).
The default link type is auto.
Command mode: Interface port
Configuration Commands
127