HP 10Gb Ethernet BL-c Switch Browser-based Interface Reference Guide

Configuring the switch
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The following table describes the MSTP/RSTP General Configuration controls:
Table 121 MSTP/RSTP General Configuration controls
Control Description
Region Name 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.
Revision Level (0-65535) 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.
Max. Hop Count (4-60) 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.
MSTP/RSTP Mode Selects either Rapid Spanning Tree Protocol (RSTP) or Multiple Spanning Tree
Protocol (MSTP).
The default mode is RSTP.
MSTP/RSTP State Globally turns RSTP/MSTP on or off.
NOTE: When RSTP is turned on, the configuration parameters for STP group 1
apply to RSTP.
Default CIST This button resets CIST general parameters to their default values.
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.