Selecting How VLAN Membership is Implemented
for Extended Ports
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. 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 run time
or schedule the change during a maintenance window.
To set the way VLAN membership is implemented, use the following command:
configure forwarding vpex
vlan-port-filter [hash-table |
port-group]
To see the current selection for VLAN membership, use the command:
show forwarding configuration
Print
this page
Email this topic
Feedback
View PDF
Download EPUB