The SmartSwitch 2000 Chassis View

2-56 Managing the Hub

•none — the SmartSwitch 2000 will reserve all bandwidth for switching;
therefore, if all the bandwidth is needed for switching, management frames
may be dropped.
•limited — the management of the SmartSwitch 2000 may appear slow while
the SmartSwitch 2000 is at maximum switching load.
•full — management of the SmartSwitch 2000 is always possible and
management frames will have priority over switched data if full CPU
bandwidth is required (switched frames may be dropped).
To configure the CPU Management Reservation:
1. Next to the CPU Management Reservation field click on and select none,
full, or limited from the drop down list.
2. Click on the Apply button to set the new CPU management reservation. A
window opens stating the set was successful.
802.1Q VLANs
This section introduces and describes pre-standard IEEE 802.1Q port-based
Virtual Local Area Network (VLAN) technology and the windows used to
configure 802.1Q VLAN-capable devices. SmartSwitch 2000 firmware version
4.00.08 supports the pre-standard IEEE 802.1Q draft specification for port-based
VLANs.
What is a VLAN?
A Virtual Local Area Network (VLAN) is a logical group of devices that function
as a single Local Area Network segment (broadcast domain). Devices comprising
a VLAN may be (physically) widely separated, allowing users located in separate
areas or connected to separate ports to belong to a single VLAN group. Users
assigned to a VLAN can send and receive broadcast and multicast traffic as
though they were all physically connected to a single network segment.
VLAN-capable switches isolate broadcast and multicast traffic received from
VLAN groups, and contain broadcasts and multicasts from members of a VLAN
within that group.
NOTE
For SmartSwitch 2000 firmware versions 4.00.08 and above, HSIM-F6 modules cannot
be installed in a SmartSwitch 2000 that is operating in 802.1Q mode.