Administrator Guide

Stacking 257
Viewing and Clearing Stacking and NSF Information
Use the following commands to view stacking information and to clear NSF
statistics.
NOTE: The OSPF feature uses NSF to enable the hardware to continue forwarding
IPv4 packets using OSPF routes while a backup unit takes over stack master
responsibility. Additional NSF commands are available in OSPF and OSPFv3
command modes. For more information, see "NSF OSPF Configuration" on
page 1269 and "NSF OSPFv3 Configuration" on page 1286
Command Purpose
show switch [stack-
member-number]
View information about all stack members or the specified
member.
show switch stack-
standby
View the ID of the switch that will assume the role of the
stack master if it goes down.
show switch stack-ports View information about the stacking ports.
show switch stack-ports
counters
View the statistics about the data the stacking ports have
transmitted and received.
show switch stack-ports
stack-path
{<unit>|all}
View the path that packets take from one stack member to
another.
show supported
switchtype
[<switchindex>]
View the Dell EMC Networking models that are supported
in the stack and the switch index (SID) associated with
each model. The information may vary, depending on the
loaded firmware (Adv/AdvLite).
show nsf View summary information about the NSF state of the
master and standby switches.
show checkpoint
statistics
View information about checkpoint messages generated by
the stack master.
clear checkpoint
statistics
Reset the checkpoint statistics counters to zero.