configure forwarding vpex
vlan-port-filterNEW!
configure forwarding vpex
vlan-port-filter [hash-table |
port-group]
Description
Selects the way VLAN membership is implemented for Extended Edge
Switching extended ports.
Syntax Description
| vpex |
Specifies Extended Edge
Switching.
|
| vlan-port-filter |
Select hardware mechanism to enforce VLAN port membership. |
| hash-table |
Use hash table for VLAN port membership when different VLANs do not
share many ports (default). |
| port-group |
Use port group for VLAN port membership when different VLANs share many ports and
there is a requirement for large VLAN scale. |
Default
Hash table is the default behavior.
Usage Guidelines
In
Extended Edge
Switching hardware, the extended ports are
represented as virtual ports. The VLAN membership of extended ports can be
implemented in two ways:
- Hash table with VLAN and virtual port as
key. Note that hash tables can lead to hash collisions at higher scale.
(Default)
- Virtual port group. Programming the same group number in the VLAN table and
virtual port table indicates membership. The hardware has 64 virtual port
groups. You should select this option if many VLANs share the same extended
ports.
Note that changing this configuration at run time could result in temporary
loss of traffic while the tables are reprogrammed. It is preferable to identify
which option works best for the particular topology and leave the setting unchanged
during runt ime or schedule the change during a maintenance window.
To see what setting you have selected with this command, see show forwarding configuration.
Example
The following example selects a virtual port group to define VLAN
membership:
# configure forwarding vpex vlan-port-filter port-group
History
This command was first available in ExtremeXOS 22.6.
Platform Availability
This command is available on Summit X670-G2, and ExtremeSwitching X590, X690 series switches.
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