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HP 445860-B21 - 10Gb Ethernet BL-c Switch Reference Manual Page 186

Hp 10gb ethernet bl-c switch browser-based interface reference guide.
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The following table describes the MSTP/RSTP General Configuration controls:
MSTP/RSTP General Configuration controls
Table 121
Control
Region Name
Revision Level (0-65535)
Max. Hop Count (4-60)
MSTP/RSTP Mode
MSTP/RSTP State
Default CIST
NOTE:
IEEE 802.1w standard-based RSTP implementation runs on one STG (i.e. same as one spanning tree
instance) only. As a result, if 'RSTP' is selected as the MSTP/RSTP mode, then only a single RSTP instance
(default for STG 1) is supported for all VLANs, including the Default VLAN 1.
If multiple spanning tree instances are required, then select 'MSTP' mode, so that multiple VLANs are
handled by multiple spanning tree instances, as specified by IEEE 802.1s standard-based MSTP
implementation.
Only IEEE 802.1s MSTP supports rapid convergence using IEEE 802.1w RSTP.
PVST+ does not support rapid convergence in current versions.
NOTE:
The following configurations are unsupported:
HP PVST+ (default Spanning Tree setting) is NOT interoperable with Cisco Rapid PVST+.
HP MSTP/RSTP (with mode set to either 'mstp' or 'rstp') is NOT interoperable with Cisco Rapid PVST+.
The following configurations are supported:
HP PVST+ (default Spanning Tree setting) is interoperable with Cisco PVST+.
HP MSTP/RSTP (with mode set to 'mstp') is interoperable with Cisco MST/RSTP.
Description
Configures a name for the MSTP region. All devices within a MSTP region must
have the same region name.
The Region Name can have a maximum of 32 characters.
Configures a version number for the MSTP region. The version is used as a
numerical identifier for the region. All devices within a MSTP region must have the
same version number. The default value is 1.
Configures the maximum number of bridge hops a packet may to traverse before
it is dropped. The range is from 4 to 60 hops. The default is 20.
Selects either Rapid Spanning Tree Protocol (RSTP) or Multiple Spanning Tree
Protocol (MSTP).
The default mode is RSTP.
Globally turns RSTP/MSTP on or off.
NOTE:
When RSTP is turned on, the configuration parameters for STP group 1
apply to RSTP.
This button resets CIST general parameters to their default values.
Configuring the switch
186

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