
User manual
Page 20
Broadcast, Multicast or
unicast frames
Broadcast&Multicast only
Broadcast only
The ingress rate is related to CoS priority. Priority Queue is based on QoS setting (the same as
QoS assorted setting includes checking CoS priority), or ingress rate will be based on default. CoS
priority includes 4 queues: Low
,
Normal
,
Medium
,
High.
Operation method:
1. Choice 2 port at first, for example open the COS priority of port 4 and port 5, please according to
6.5 part
2. Then set port 4’s CoS is High, port 5’s CoS is LOW in COS mapping setting interface
3. Last, set the type of limit package and bandwidth of priority queue in Ingress bandwidth
configuration
For example, keep up step 1 and 2, choice “All frame” in port 4 and 5 at step 3. Set 2M in all low
priority queue
:
If priority queue bandwidth configuration is available, must mark the enter into port’s data pack as CoS.
6.4 L2 Features
6.4.1 VLAN
IES716-2GS supports based on 802.1Q VLAN. It deals with messages based on Tag of recognized
message
(
including 802.1p priority and VLAN ID, etc.
)
.
Frames with 802.1q add 4 byte Tag based on Ethernet frames, including 2 byte TPID, 3 byte
Priority, 1 byte CFI and 12 byte VLAN ID.
TPID:
a 16-bit field set to a value of 0x8100 in order to identify the frame as an IEEE 802.1Q-tagged
frame.
Priority:
It indicates the frame priority level. Values are from 0 (best effort) to 7 (highest); 1 represents
the lowest priority.
CFI:
a 1-bit field. If the value of this field is 1, the MAC address is in non-canonical format. If the value is
0, the MAC address is in canonical format.
VLAN ID:
a 12-bit field specifying the VLAN to which the frame belongs. The hexadecimal values of
0x000 and 0xFFF are reserved. All other values may be used as VLAN identifiers, allowing up to 4,094
VLAN.
1. The type of port’s Line
IES716-2GS series support 2 type port line:
Access:
Port belongs to 1 VLAN, normally, it used for connecting user device, default all port is access
port.
Trunk:
Port belongs to some VLAN, can transmit and receive some VLAN message, normally, it used
for connection of network device.