Asante Technologies 6200 manual Management VLANs, Spanning Tree Protocol in Vlan environment

VLAN Management

Management VLANs

The IntraSwitch system supports access security for switch management. By default, switch management is not affected by its VLAN configuration, meaning the switch can be accessed in any of the VLANs. Once management access is enabled for a particular VLAN, called the management VLAN, the switch can be managed only on interfaces belonging to the management VLAN(s).This essentially means that the Telnet, HTTP and SNMP operations for the switch will be successful only on interfaces belonging to management VLAN. Management VLAN security does not affect console management, though. See "Configuring Management VLAN" for details on configuring the management VLAN.

ΔNote: Management Access can be enabled for more than one VLAN at a time. By default, Man- agement Access is enabled for all VLANs.

▲Important!When configuring VLAN manage- ment in-band, if you disable management access to your own VLAN, you will have to move to a different VLAN port or to the console in order to further configure the device.

Spanning Tree Protocol in VLAN environment

The IntraSwitch system supports single Spanning Tree Protocol (STP) in the multi VLAN environment. STP operates the same way as when the system has no VLAN configuration.As far as STP BPDU (Bridge Protocol Data Unit) packets are concerned, management does not worry about which VLAN the BPDU is received or transmitted from.As a consequence, the data loop involving ports belonging to multiple VLANs will be cut as one or more ports involved in the data loop will be put in Block state.

ΔNote: You cannot create switched links between VLANs by patching two ports of the same switch together. This will create an STP loop which will disable one of the ports.

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