Cist Port Configuration - HP 445860-B21 - 10Gb Ethernet BL-c Switch Command Reference Manual

CIST port configuration

Command: /cfg/l2/mrst/cist/port <port number>
[CIST Port 1 Menu]
prior
cost
hello
link
edge
on
off
cur
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 Menu options.
CIST Port Configuration Menu options
Table 109
Command
prior <0-240>
cost <1-200000000>
hello <1-10>
link auto|p2p|shared
- Set port Priority (0-240)
- Set port Path Cost (1-200000000)
- Set CIST port Hello Time (1-10 secs)
- Set MSTP link type (auto, p2p, or shared; default: auto)
- Enables or disables this port as an edge port
- Turn port's Spanning Tree ON
- Turn port's Spanning Tree OFF
- Display current port Spanning Tree parameters
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 is 128.
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 for Gigabit ports is 20000, and for 10Gb ports
is 2000.
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 is 2 seconds.
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.
Configuration Menu
145