Allied Telesis x600-48Ts/XP - Manual (Page 49)

x600 Series Layer 3 Gigabit Ethernet Switches Installation Guide
49
Table 10. Stacking LED Functions
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, will be 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 will update to
reflect the change in MAC address via gratuitous ARP.
LED State Description
STACK LEDs
MSTR Green ON The switch is the Stack Master.
Green OFF The switch is acting as a stack back-up
member.
1- L/A Green ON 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 Green ON Link on stacking port 2 is active.
Green
Flashing Indicates traffic flowing through stacking port 2.
Green OFF Link on stacking port 2 is inactive.
PRES Green ON VCS Stacking Module (AT-StackXG) or
Loopback Module (AT-LBM) has been
inserted, i.e. is PRESENT.
STATUS LEDs
MASTER Green ON The switch is the Stack Master.
Green
Flashing When the show stack indicator command is
activated, this LED will flash with a pattern that
indicates the stack member ID of the switch.