Ericsson ECN330, Руководство пользователя

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Configuring the ECN330-switch
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1553-KDU 137 365 Uen D 2006-06-16
Configuration Settings for RSTP
The following attributes apply to both RSTP and MSTP:
• Path Cost Method – The path cost is used to determine the best path
between devices. The path cost method is used to determine the range
of values that can be assigned to each interface.
• Long: Specifies 32-bit based values that range from 1-200,000,000.
(This is the default.)
• Short: Specifies 16-bit based values that range from 1-65535.
• Transmission Limit – The maximum transmission rate for BPDUs is
specified by setting the minimum interval between the transmission of
consecutive protocol messages. (Range: 1-10; Default: 3)
Configuration Settings for MSTP
• Max Instance Numbers – The maximum number of MSTP instances to
which the ECN330-switch can be assigned. (Default: 33)
• Configuration Digest – An MD5 signature key that contains the VLAN
ID to MST ID mapping table. In other words, this key is a mapping of all
VLANs to the CIST.
• Region Revision – The revision for this MSTI. (Range: 0-65535;
Default: 0)
• Region Name – The name for this MSTI. (Maximum length: 32
characters)
• Maximum Hop Count – The maximum number of hops allowed in the
MST region before a BPDU is discarded. (Range: 1-40; Default: 20)
Note: The MST name, revision number, and configuration digest are all
required to uniquely identify an MST region.