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Alarm Handling

S9300, S9300E, and S9300X V200R010C00

This document provides the explanations, causes, and recommended actions of alarms on the product.
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PIM-STD_1.3.6.1.2.1.157.0.5 PimInterfaceElection

PIM-STD_1.3.6.1.2.1.157.0.5 PimInterfaceElection

Description

PIM-STD/1/PUBLIC_INTELECTDR:OID [oid] Interface is elected to be DR. (IfIndex=[integer], IfIPverion=[integer], IfAddrType=[integer], Addr=[binary])

The switch was elected as a DR on a shared network segment.

Attribute

Alarm ID Alarm Severity Alarm Type

1.3.6.1.2.1.157.0.5

Critical

communicationsAlarm(2)

Parameters

Name Meaning

oid

Indicates the MIB object ID of the alarm.

IfIndex

Index of an interface

IfIPverion

Indicates the version of the interface address.
  • 1: IPv4

  • 2: IPv6

IfAddrType

Indicates the inetAddressType of an interface address. The value can be:
  • 1: IPv4 address

  • 2: IPv6 address

Addr

IP address of an interface

Impact on the System

If the source-side DR changes, the RP receives an incorrect Register message; if the member-side DR changes, the RP receives an incorrect Join message.

Possible Causes

Cause 1:

The PIM interface received a new Hello packet and had a higher DR priority or IP address than other interfaces on the shared network segment.

NOTE:

The start of a PIM interface triggers a DR change. This is a normal situation, and therefore a DR change during the interval for the first Hello packet will not trigger this trap.

Cause 2:

After a PIM interface went Up, the PIM interface did not receive Hello packets after the interval between Hello packets expired.

Procedure

  1. Check whether the interface can be a DR based on the network plan.

    • If the interface can be a DR, go to step 8.

    • If the interface cannot be a DR, go to step 2.

  2. Run the display pim interface interface-type interface-number command to view the IP address of the PIM interface. Check whether the IP address of the interface is followed by a word "local."

    • If there is the word "local", the interface is the DR. Then go to step 3.

    • If there is not the word "local", go to step 8.

  3. Run the display pim interface interface-type interface-number command to check whether interfaces on the shared network segment all allow the Hello packets to carry the DR priority field.

    • If they support the function, obtain the interface DR priority and go to step 4.

    • If they do not support the function, go to step 5.

  4. Run the display pim neighbor neighbor-address command to view the neighbor priorities. Check whether all neighbors' DR priorities are lower than the interface DR priority.

    • If all neighbors have lower priorities than the PIM interface, run the pim hello-option dr-priority priority command to set a lower priority for the interface than the priorities of neighbors. Then go to step 6.

    • If all neighbors have higher priorities than the PIM interface, run the ip address ip-address { mask | mask-length } command to configure a lower IP address for the interface than IP addresses of the neighbors. Then go to step 6.

  5. If all neighbors' priorities are higher than the PIM interface, run the ip address ip-address { mask | mask-length } command to configure a lower IP address for the interface than its neighbors. Then go to step 6.
  6. Run the display pim interface interface-type interface-number command to the DR information. Check whether the DR information is changed.

    • If the DR information is changed, go to step 8.

    • If the DR information is unchanged, go to step 7.

  7. Collect alarm information and configuration information, and then contact technical support personnel.
  8. End.

Related Information

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Updated: 2019-08-21

Document ID: EDOC1000142054

Views: 189015

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