Chapter 8 Basic Setting
OLT2406 User’s Guide
101
Figure 63 Basic Setting > Switch Setup
The following table describes the labels in this screen.
Table 19 Basic Setting > Switch Setup
LABEL DESCRIPTION
VLAN Type Choose 802.1Q. See Chapter 9 on page 107 for more information.
WRED Select Active to enable QoS Weighted Random Early Detection (WRED). It’s a congestion
avoidance technique that makes early detection of traffic congestion possible and provides
queueing scheduling for multiple classes of traffic.
Downstream
Meter
Set the downstream macro meter rate limit sharing mode.
Select pir (Peak Information Rate) to take bandwidth first.
Select cir (Committed Information Rate) to take bandwidth first.
Bridge Control
Protocol
Transparency
Select Active to allow the OLT to handle bridging control protocols (STP, for example). You also
need to define how to treat a BPDU in the Basic Setting > Port Setup screen.
Smart Isolation Select Active to enable smart isolation on the OLT. The designated port(s) then becomes the
isolated port. Smart isolation allows you to prevent isolated ports on different switches from
transmitting traffic to each other.
Note: To use smart isolation, you should have configured 802.1Q VLAN port isolation
and (M)RSTP on the OLT. Smart isolation does not work with MSTP.
MAC Address Learning
MAC address learning reduces outgoing traffic broadcasts. For MAC address learning to occur on a port, the port
must be active.
Aging Time Enter a time from 10 to 1000000 seconds. This is how long all dynamically learned MAC
addresses remain in the MAC address table before they age out (and must be relearned).
GARP Timer: Switches join VLANs by making a declaration. A declaration is made by issuing a Join message using
GARP. Declarations are withdrawn by issuing a Leave message. A Leave All message terminates all registrations.
GARP timers set declaration timeout values. See the chapter on VLAN setup for more background information.
Join Timer Join Timer sets the duration of the Join Period timer for GVRP in milliseconds. Each port has a Join
Period timer. The allowed Join Time range is between 100 and 65535 milliseconds; the default is
200 milliseconds. See the chapter on VLAN setup for more background information.
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