Configuration Guide

Table Of Contents
©2021 Extreme Networks, Inc. All rights reserved
October 2021
98
20.1.5
VSP 7000 – Fabric Interconnect Mesh
20.1.5.1 Rear Port Mode
In the 10.2 release, the VSP 7000 can be configured in Fabric Interconnect Mesh (FI) mode by setting the
rear-port mode to SPB. This allows the VSP 7000 to run SPB via the rear ports using stacking cables to
connect to other VSP 7000s. In the 10.2.1 release, SMLT is supported allowing for either SPB or SMLT to
operate via the rear port. In the 10.3 release, both SPB and SMLT are supported via the rear ports.
Please refer to the Resilient Data Center Solutions Technical Configuration Guide publication number
NN48500-645 for more details.
ACLI - L2 VSN
config terminal
rear-port mode enable spb
Enabling rear port mode will disable Fabric Interconnect Stack operation.
Switch configuration will be reset to partial-defaults. Continue(yes/no)?yes
show rear-port mode
20.1.5.2 Rear Port Mode LACP Provisioning
By default when rear port mode is enabled, LACP is automatically enabled across all rear ports using a
default LACP key of 4095. If you wish, you can change this value on one or more of the four rear ports. In
SPB rear port mode, the port numbers for each rear port is as follows:
FI Up (right) Bottom: Port 33
FI Up (right) Top: Ports 34, 35, 36
FI Down (left) Bottom: Port 37
FI Down (left) Top: Ports 38, 39 (SPB) or ports 38, 39, 40 (Standard)
For example, to change the LACP on the FI Up (right) Top ports:
interface ethernet 34-36
lacp key 4094
exit
show lacp aggr
show lacp port aggr <aggr id>
show lacp debug member 34-36