
Basic Management Tasks
41
Instruction Manual - NXA-ENET8-POE+
Configuring Support for Jumbo Frames
Use the System > Capability page to configure support for layer 2 jumbo frames. The switch provides more efficient throughput for
large sequential data transfers by supporting jumbo frames up to 10240 bytes for Gigabit Ethernet and 10 Gigabit Ethernet ports
or trunks. Compared to standard Ethernet frames that run only up to 1.5 KB, using jumbo frames significantly reduces the
per-packet overhead required to process protocol encapsulation fields.
Usage Guidelines
To use jumbo frames, both the source and destination end nodes (such as a computer or server) must support this feature. Also,
when the connection is operating at full duplex, all switches in the network between the two end nodes must be able to accept the
extended frame size. And for half-duplex connections, all devices in the collision domain would need to support jumbo frames.
The Capability page displays the Jumbo Frame option. By default, this option is disabled.
Perform these steps to configure support for jumbo frames:
1.
Click
System
>
Capability
.
2.
Enable or disable support for jumbo frames.
3.
Click
Apply
.
Displaying Bridge Extension Capabilities
Use the System > Capability page to display settings based on the Bridge MIB. The Bridge MIB includes extensions for managed
devices that support Multicast Filtering, Traffic Classes, and Virtual LANs. You can access these extensions to display default
settings for the key variables.
The following table displays the options on this page:
FIG. 25
Configuring Support for Jumbo Frames
System - Capability Options
Extended Multicast Filtering Services This switch does not support the filtering of individual multicast addresses based on GMRP (GARP
Multicast Registration Protocol).
Traffic Classes
This switch provides mapping of user priorities to multiple traffic classes. (Refer to the
Static Entry Individual Port
This switch allows static filtering for unicast and multicast addresses. (Refer to the
VLAN Version Number
Based on IEEE 802.1Q, "1" indicates Bridges that support only single spanning tree (SST)
operation, and "2" indicates Bridges that support multiple spanning tree (MST) operation.
VLAN Learning
This switch uses Independent VLAN Learning (IVL), where each port maintains its own filtering
database.
Local VLAN Capable
This switch does not support multiple local bridges outside of the scope of 802.1Q defined VLANs.
Configurable PVID Tagging
This switch allows you to override the default Port VLAN ID (PVID used in frame tags) and egress
status (VLAN-Tagged or Untagged) on each port. (Refer to the "
page 87.)
Max Supported VLAN Numbers
The maximum number of VLANs supported on this switch.
Max Supported VLAN ID
The maximum configurable VLAN identifier supported on this switch.