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x600 Series Layer 3 Gigabit Ethernet Switches Installation Guide
61
Running QoS within a VCS stack
In general you can apply the same principles when configuring QoS on a
VCS stack as you would for single switch; however there are a few specific
changes that you will need to make. See the AlliedWare Plus Software
Reference more information on this topic.
Stack Member
Failure and
Recovery
Management IP Addresses
A single virtual MAC address, from the current Master, is used as the stack
MAC address. If the stack master fails, the stack MAC address changes to
reflect the new master's MAC address. If the stack MAC address does
change, ARP tables of devices on the network are updated to reflect the
change in MAC address via gratuitous ARP.
1- L/A Solid
Green
Link on stacking port 1 is active.
Green
Flashing
Indicates traffic flowing through stacking port 1
Green OFF Link on stacking port 1 is inactive.
2- L/A Solid
Green
Link on stacking port 2 is active.
Green
Flashing
Indicates traffic flowing through stacking port 2.
OFF Link on stacking port 2 is inactive.
PRES Solid
Green
VCS Stacking Module (AT-StackXG) or
Loopback Module (AT-LBM) has been
inserted, i.e. is PRESENT.
STATUS LEDs
MASTER Solid
Green
The switch is the Stack Master.
Green
Flashing
When the STACK INDICATOR command is
activated, this LED will flash with a pattern that
indicates the stack member ID of the switch.
LED State Description (Continued)