Netgear XCM8806 - 8800 SERIES 6-SLOT CHASSIS SWITCH 사용자 설명서
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Chapter 18. STP
NETGEAR 8800 User Manual
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Protected VLAN named v2
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v2 contains ports 3:1-3:4
Since v1 contains ports 3:1-3:2, v2 is aware only of the STP changes for ports 3:1 and 3:2,
respectively. Ports 3:3 and 3:4 are not part of the STPD, which is why v2 is not aware of any
STP changes for those ports.
respectively. Ports 3:3 and 3:4 are not part of the STPD, which is why v2 is not aware of any
STP changes for those ports.
In addition, enabling autobind on a protected VLAN causes ports to be automatically added
or removed as the carrier VLAN changes.
or removed as the carrier VLAN changes.
For MSTP, when you issue this command, any port or list of ports that gets automatically
added to an MSTI are automatically inherited by the CIST. In addition, any port or list of ports
that you remove from an MSTI protected VLAN are automatically removed from the CIST. For
more information, see
added to an MSTI are automatically inherited by the CIST. In addition, any port or list of ports
that you remove from an MSTI protected VLAN are automatically removed from the CIST. For
more information, see
To remove ports, use the following command:
configure stpd <stpd_name> delete vlan <vlan_name> ports [all | <port_list>]
If you manually delete a port from the STPD on a VLAN that has been added by autobind,
XCM8800 records the deletion so that the port does not get automatically added to the STPD
after a system restart.
XCM8800 records the deletion so that the port does not get automatically added to the STPD
after a system restart.
To learn more about the member VLANs, see
detailed information about these CLI commands, see the NETGEAR 8800 Chassis Switch
CLI Manual.
CLI Manual.
Automatically Inheriting Ports—MSTP Only
In an MSTP environment, whether you manually or automatically bind a port to an MSTI in an
MSTP region, the switch automatically binds that port to the CIST. The CIST handles BPDU
processing for itself and all of the MSTIs; therefore, the CIST must inherit ports from the
MSTIs in order to transmit and receive BPDUs. You can only delete ports from the CIST if it is
no longer a member of an MSTI.
MSTP region, the switch automatically binds that port to the CIST. The CIST handles BPDU
processing for itself and all of the MSTIs; therefore, the CIST must inherit ports from the
MSTIs in order to transmit and receive BPDUs. You can only delete ports from the CIST if it is
no longer a member of an MSTI.
For more information about MSTP, see
Rapid Root Failover
XCM8800 supports rapid root failover for faster STP failover recovery times in STP 802.1D
mode. If the active root port link goes down, XCM8800 recalculates STP and elects a new
root port. The rapid root failover feature allows the new root port to immediately begin
forwarding, skipping the standard listening and learning phases. Rapid root failover occurs
only when the link goes down and not when there is any other root port failure, such as
missing BPDUs.
mode. If the active root port link goes down, XCM8800 recalculates STP and elects a new
root port. The rapid root failover feature allows the new root port to immediately begin
forwarding, skipping the standard listening and learning phases. Rapid root failover occurs
only when the link goes down and not when there is any other root port failure, such as
missing BPDUs.
The default setting for this feature is disabled. To enable rapid root failover, use the following
command:
command:
enable stpd <stpd_name> rapid-root-failover
To display the configuration, use the following command: