HP V1910 Switch Series User Manual

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Figure 164 Basic concepts in MSTP
MST region
A multiple spanning tree region (MST region) consists of multiple devices in a switched network and the
network segments among them. All these devices have the following characteristics:
 MSTP-enabled
 Same region name
 Same VLAN-to-MSTI mapping configuration
 Same MSTP revision level
 Physically linked together
All the devices in region A0 in Figure 164 have the same MST region configuration:
 The same region name
 The same VLAN-to-MSTI mapping configuration (VLAN 1 is mapped to MSTI 1, VLAN 2 to MSTI 2,
and the rest to the common and internal spanning tree (CIST, that is, MSTI 0)
 The same MSTP revision level (not shown in the figure)
Multiple MST regions can exist in a switched network. You can assign multiple devices to the same MST
region.
VLAN-to-MSTI mapping table
As an attribute of an MST region, the VLAN-to-MSTI mapping table describes the mapping relationships
between VLANs and MSTIs. In Figure 164, the VLAN-to-MSTI mapping table of region A0 is: VLAN 1 is

HP V1910 Switch Series Specifications

General

Product Series	V1910
VLAN Support	Yes
QoS	Yes
Ports	8, 24, or 48 10/100/1000 ports
MAC Address Table Size	8K entries
Power Supply	Internal power supply
Jumbo Frame Support	Yes
Operating Humidity	10% to 90% (non-condensing)