Hot Swapping With Stp, Rstp, And Mstp; Hot Swapping And 802.1X Port-Based Network Access Control - Allied Telesis AT-8400 Series Reference Manual

Installing and Removing Line Cards
Hot Swapping
with STP, RSTP,
and MSTP
Hot Swapping
and 802.1x
Port-Based
Network Access
Control
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In the case of Multiple VLANs, the number of VLANS is equal to the
(Number of Available Ports) — 1. So, if the same or a different line card is
installed where a previous line card existed and the total number of
ports changed, then the number of VLANs are automatically adjusted by
the management software.
You can use the STP, RSTP, and MSTP features to assign port priority to
individual ports on a line card. When you remove a line card, the port
priority that you assigned to each port on the line card is dropped.
However, the software configuration for port priority is preserved. When
you install a line card of the same type, the configuration of port priority
is restored.
If you replace a line card with a line card of a different type and then
select Save Configuration changes from the Main Menu, the port
priority configuration changes are lost.
You can use the AT-S60 software to enable 802.1x Port-Based Access
Control on AT-8400 Series switch. If you have configured specific ports
on a line card for Port-Based Access Control, when you remove the line
card the ports include in the Port-Based Access Control become inactive.
However, the Port-Based Access Control configuration is saved on the
AT-8401 management card. If you replace a line card with a line card of
the same type, the same ports remain configured on the new line card
are as the ports on the card it replaced. If you replace a line card with a
line card of a different type and then select Save Configuration
changes from the Main Menu, you need to reconfigure the ports on the
new line card for Port-Based Access Control.