System information

xStack
®
DGS-3200 Series Layer 2 Gigabit Ethernet Managed Switch
158
Figure 6 - 14. Add Access Rule window for IPv4
To set the Access Rule for IP, adjust the following parameters and click Apply.
Parameter Description
Access ID (1-200)
Type in a unique identifier number for this access. This value can be set from 1 to 200.
Auto Assign – Ticking this check box will instruct the Switch to automatically assign an Access ID
for the rule being created.
Action
Select Permit to specify that the packets that match the access profile are forwarded by the
Switch, according to any additional rule added (see below).
Select Deny to specify that packets that do not match the access profile are not forwarded by the
Switch and will be filtered.
Select Mirror to specify that packets that match the access profile are mirrored to a port defined
in the config mirror port command. Port Mirroring must be enabled and a target port must be set.
Priority (0-7)
Tick the corresponding check box if you want to re-write the 802.1p default priority of a packet to
the value entered in the Priority field, which meets the criteria specified previously in this
command, before forwarding it on to the specified CoS queue. Otherwise, a packet will have its
incoming 802.1p user priority re-written to its original value before being forwarded by the Switch.
For more information on priority queues, CoS queues and mapping for 802.1p, see the QoS
section of this manual.
Replace Priority
Tick this check box to replace the Priority value in the adjacent field.
Replace DSCP (0-
63)
Select this option to instruct the Switch to replace the DSCP value (in a packet that meets the
selected criteria) with the value entered in the adjacent field. When an ACL rule is added to
change both the priority and DSCP of an IPv4 packet, only one of them can be modified
due to a chip limitation. Currently the priority is changed when both the priority and DSCP
are set to be modified.
DSCP
This field allows the user to enter a DSCP value in the space provided, which will instruct the
Switch to examine the DiffServ Code part of each packet header and use this as the, or part of
the criterion for forwarding. The user may choose a value between 0 and 63.
Rx Rate (1-
156249)
Use this to limit Rx bandwidth for the profile being configured. This rate is implemented using the
following equation: 1 value = 64kbit/sec. (ex. If the user selects an Rx rate of 10 then the ingress
rate is 640kbit/sec.) The user many select a value between 1 and 156249 or tick the No Limit