Table of Contents
Advertisement
About the VDSL Switch-VS2512A
Traffic Priority
This switch provides Quality of Service (QoS) by prioritizing each packet based on
the required level of service, using four distinct categories with Weighted Round
Robin Queuing. It uses IEEE 802.1p and 802.1Q tags to prioritize incoming traffic
based on input from the end-station application. These functions can be used to
provide independent priorities for delay-sensitive data and best-effort data.
Description of Hardware
VDSL Switch-VS2512A
Accton's VDSL Switch-VS2512A together with the VDSL Splitter-VM2524/VM2548
combines data and voice signals for delivery over standard telephone cable to
multiple users in residential or commercial buildings. Ethernet data signals are
received on the switch uplink port and passed to 12 VDSL lines via 12 internal
Ethernet ports. These 12 VDSL lines are then passed to the splitter via the RJ-21
connector on the rear panel.
The switch supports the following optional modules: 1-port 1000BASE-T, 1-port
1000BASE-SX, 1-port 1000BASE-LX, 1-port 1000BASE-X GBIC, 4-port
100BASE-FX multimode and single-mode, 1-port 100BASE-FX mutimode, 1-port
10/100BASE-TX, or 4-port 10/100Base-TX. The fiber module ports can provide
direct connection to your ISP with fiber optic cable. In a switch stack, any of the
module ports can also function as uplinks to the backbone, or as regular switch ports
for networking.
Speed, duplex mode, and flow control for the optional module, and GBIC transceiver
ports are shown below.
Port Type
100BASE-FX
10/100BASE-TX
1000BASE-T
1000BASE-SX
1000BASE-LX
1000BASE-LH
Note: If the attached device does not support auto-negotiation, you will have to manually
configure the other device to match the duplex mode and speed, otherwise it will
default to half duplex.
The switch also includes a DB-9 console port on the front panel for switch
configuration. It also has two FireWire (IEEE 1394) ports that can be used to stack
up to 8 units for common management access. When multiple units are stacked
together, you can manage the entire stack by connecting to the console port on the
Master unit in the stack. The push button on the front panel is used to select the
Master unit in the stack.
Note: Only one unit in the stack can act as Master.
1-4
Speed
100 Mbps
auto (10/100 Mbps)
auto (10/100/1000 Mbps)
1000 Mbps
1000 Mbps
1000 Mbps
Duplex Mode
full duplex
auto
full duplex at 1000 Mbps
full/half duplex at 10/100 Mbps
full duplex
full duplex
full duplex
Flow Control
auto
auto
auto
auto
auto
auto
Advertisement
Table of Contents
