16.3.2 Displaying Uplink Redundant Status

You can display the destination VLANs for flush control frames and the status of the primary and secondary ports.

Figure 16-9: Result of show switchport-backup
> show switchport-backup Date 20XX/09/04 16:48:07 UTC startup active port selection: primary only Switchport Backup pairs Preemption Flush Primary Status Secondary Status Delay Rest VLAN Update Reset Port 1/0/1 Forwarding Port 2/0/18 Blocking - - 4093 - - Port 1/0/10 Down ChGr 4 Forwarding - - - 1 - Port 1/0/11 Down Port 2/0/15 Blocking - - 10 - - Port 1/0/12 Down Port 2/0/16 Down - - - - 3s >

Figure 16-9: Result of show switchport-backup

> show switchport-backup
Date 20XX/09/04 16:48:07 UTC
startup active port selection: primary only
Switchport Backup pairs                        Preemption   Flush
 Primary     Status     Secondary   Status     Delay  Rest   VLAN  Update  Reset
 Port 1/0/1  Forwarding Port 2/0/18 Blocking       -     -   4093       -      -
 Port 1/0/10 Down       ChGr 4      Forwarding     -     -      -       1      -
*Port 1/0/11 Down       Port 2/0/15 Blocking       -     -     10       -      -
*Port 1/0/12 Down       Port 2/0/16 Down           -     -      -       -     3s
>

Status column

Forwarding indicates the active port, and Blocking indicates the standby port.