HP GbE2c HP GbE2c Ethernet Blade Switch for c-Class BladeSystem Command Refere - Page 115

Spanning Tree configuration

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• 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. Table 109 CIST Port Configuration Menu options Command prior cost hello link auto|p2p|shared edge disable|enable on off cur 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 is 20000 for Gigabit ports. 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. Enables or disables this port as an edge port. An edge port is not connected to a bridge, and can begin forwarding traffic as soon as the link is up. Configure server ports as edge ports (enabled). This command is disabled by default. Enables CIST on the port. Disables CIST on the port. Displays the current CIST port configuration. Spanning Tree configuration Command: /cfg/l2/stp [Spanning Tree Group 1 Menu] brg - Bridge parameter menu port - Port parameter menu add - Add VLAN(s) to Spanning Tree Group remove - Remove VLAN(s) from Spanning Tree Group clear - Remove all VLANs from Spanning Tree Group on - Globally turn Spanning Tree ON off - Globally turn Spanning Tree OFF default - Default Spanning Tree and Member parameters cur - Display current bridge parameters The GbE2c supports the IEEE 802.1d Spanning Tree Protocol (STP) and Cisco proprietary PVST and PVST+ protocols. You can configure up to 127 spanning tree groups on the GbE2c (STG 128 is reserved for switch management). Spanning Tree is turned on by default. NOTE: When RSTP is turned on, only STP group 1 can be configured. Configuration Menu 115

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Configuration Menu 115
•
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.
Table 109
CIST Port Configuration Menu options
Command
Description
prior <
0-240
>
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.
cost <
1-200000000
>
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 is 20000 for Gigabit ports.
hello <
1-10
>
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.
link auto|p2p|shared
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
.
edge disable|enable
Enables or disables this port as an edge port. An edge port is not connected to a
bridge, and can begin forwarding traffic as soon as the link is up. Configure server
ports as edge ports (enabled). This command is disabled by default.
on
Enables CIST on the port.
off
Disables CIST on the port.
cur
Displays the current CIST port configuration.
Spanning Tree configuration
Command:
/cfg/l2/stp
[Spanning Tree Group 1 Menu]
brg
- Bridge parameter menu
port
- Port parameter menu
add
- Add VLAN(s) to Spanning Tree Group
remove
- Remove VLAN(s) from Spanning Tree Group
clear
- Remove all VLANs from Spanning Tree Group
on
- Globally turn Spanning Tree ON
off
- Globally turn Spanning Tree OFF
default - Default Spanning Tree and Member parameters
cur
- Display current bridge parameters
The GbE2c supports the IEEE 802.1d Spanning Tree Protocol (STP) and Cisco proprietary PVST and PVST+ protocols.
You can configure up to 127 spanning tree groups on the GbE2c (STG 128 is reserved for switch management).
Spanning Tree is turned on by default.
NOTE:
When RSTP is turned on, only STP group 1 can be configured.