9
Status LEDs
The XES-2T6 has three status LEDs (8a-c, 9a-c, 12a-c) for each of the network ports plus a group colour LED for each of
the numbered Ethernet ports (12d) and a group colour LED for the aggregated trunk ports (10).
Further, there is also a status LED for each of the power supplies. The LED for the primary PSU (1) and the LED for the
backup PSU (2) indicate whether the respective PSU is powered from the mains and functioning.
The link LEDs (8c, 9c, 12c) are lit when the respective network port has established a network connection. The 100
Mbit/s activity LEDs (8b, 9b, 12b) indicate whether the corresponding port is working at 100 Mbit/s. When a 100 Mbit/s
connection has been established, these LEDs also show the activity of the respective ports. The more activity is present
at a port, the more frequently the corresponding LED will turn off for an instant. The 1000 Mbit/s activity LEDs (8a, 9a,
12a) light up when a Gigabit Ethernet connection has been established and display the port activity in the case of a
Gigabit Ethernet link.
Groups (IEEE 802.1Q VLANs)
Each of the six numbered Ethernet ports (11) can be assigned to any of up to thirty configurable groups (IEEE 802.1Q
VLANs). See Ethernet Port Configuration on page 11 for detailed information on how to assign an Ethernet port to a
group. The configuration of a group is covered under Adding, Removing and Editing Groups on page 12.
On the XES-2T6, each group has a label, a VLAN ID and a colour. A group forms an independent network that is uniquely
identified by its VLAN ID, which is a number between 1 and 4094. The label is shown in the menus and on the home
screen in order to make it easier for the user to identify groups. The colour of a group determines the colour in which
the group colour LED of an Ethernet port assigned to that group lights up while the switch is operating normally. This
allows for quickly identifying the group assignment of the Ethernet ports.
The six numbered Ethernet ports can either be assigned to a group or configured as inter switch ports, whereas the
two aggregated trunk ports are permanently configured as inter switch ports. The group colour LED of an inter switch
port is lit white in normal operation.
Any network traffic that is being sent to an Ethernet port of the XES-2T6 that is assigned to one of the configurable
groups, is only forwarded to ports which are assigned to the same group (identified by a unique VLAN ID), as well as
to the ports configured as inter switch ports. Traffic that is being sent from an inter switch port of the XES-2T6 comes
with a VLAN tag attached, which contains the VLAN ID associated with the port from which it originates if it arrived to
the XES-2T6 via a port that was assigned to one of the configurable groups.
If a packet that reached the XES-2T6 via an inter switch port, was tagged when it arrived, it leaves the XES-2T6 with
the same VLAN ID with which it was originally tagged. Such packets will be forwarded to all inter switch ports and to
the ports that are configured to the VLAN ID of the
packet’s tag
. If an untagged packet arrives at an inter switch port
of the XES-2T6, the packet will be tagged with the XES-2T6
default VLAN ID, 1,
and then it will be treated as if the
packet had reached the inter switch port with the VLAN ID 1 attached to it.
Note that since all packets that the XES-2T6 sends on an inter switch port, sometimes also referred to as trunk port,
are tagged with a VLAN ID, end devices such as computers, mixing consoles, light desks etc. are typically unable to
process this data. These devices must be connected to a port assigned to a configurable group. Therefore, these ports
are also known as access ports.
