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Local Management: Overview, Setup, and Navigation
has been configured in the switch before it can be selected. The
maximum VID value that can be entered is 1,4095.
Example:
Examples of Dynamic Egress use
Dynamic Egress and Aging Time
This section provides an example of how aging time affects the dynamic
recognition of frames from a user device on a port.
In this example, assume that a rule set on Port 1 of the SmartSwitch device
classifies all IP frames to a Red VLAN. Once Port 1 receives a frame from a user
device, the frame is classified to the Red VLAN and added to the dynamic Port
VLAN List of Port 1.
If after 300 seconds another IP frame is not received on Port 1 (by any station), the
Red VLAN is removed from the dynamic Port VLAN List for Port 1. When Port 1
receives another frame, the Red VLAN is added again to the dynamic Port VLAN
List of Port 1 and the process continues.
The dynamic Port VLAN List is a temporary list used in the dynamic egress
function to keep track of the VLANs and the associated users that reside off a
dynamic-egress enabled port.
Using Dynamic Egress to Control Traffic
In this simple example (Figure 50), assume that there are four ports on the
SmartSwitch device attached to PCs supporting both protocols AppleTalk (809B
and 80F3) and IP. Two PCs support IP only. The AppleTalk frame traffic is to be
contained so only the users running the AppleTalk protocol can communicate
with each other and not flood the network with AppleTalk frames. However, all
users are to have access to a web server connected to Port 7.
-> dynamic_egress status 1
Dynamic Egress Disabled for VLAN ID 0x0001
-> dynamic_egress enable 1
Dynamic Egress Enabled for VLAN ID 0x0001
-> dynamic_egress disable 1
Dynamic Egress Disabled for VLAN ID 0x0001