ALM-3276800131 Indicates that the stack-port state has changed to down

Description

FSP/3/STACKPORT_DOWN: OID [OID] Stack-port [integer]/[integer] changes to down.

This alarm was sent to the NMS by the master switch when the logical stack port of a switch in the stack system was Down.

Attribute

Parameters

Impact on the System

If the previous stack system is in a ring topology and the interface in the Down state just functions as the ring-breaking point, the topology may become a link topology. Services, however, are not affected. If the logical stack port in the Down state does not function as the ring-breaking point, the stack system refreshes the forwarding entries. In this case, services are transiently interrupted and automatically recover after the forwarding entries are refreshed.

If the previous stack system is in a link topology, services on the switch that is Down are interrupted and cannot recover until the switch is added to the stack system again.

Possible Causes

1. The switch in the stack system was powered off.

2. The stack cable was connected loosely or even removed.

3. The stack card was loosened.

Procedure

1. Check whether the switch was powered off.
   • If it was powered off, power on it. The alarm handling ends.
   • If not, go to step 2.

2. Run the display stack port command to check whether physical member ports are Up.
   • If so, collect alarm information and configuration information, and then contact technical support personnel.
   • If not, go to step 3.

3. Check whether the stack card is loose. If it is loose, install it securely and then run the display stack port command to check whether physical member ports are Up.
   • If so, the alarm handling ends.
   • If not, rectify the fault according to An Ethernet Interface Is Physically Down in the product documentation of the corresponding device.

Related Information

None