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Alarm Handling

AR100, AR120, AR160, AR1200, AR2200, AR3200, and AR3600 V300R003

This document provides the trap description, attributes, parameters, impact on the system, possible causes, procedures, and references. This document provides a complete set of traps, through which intended readers are kept of the running status of the device so as to locate faults.

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BFD_1. hwBfdSessUp

BFD_1. hwBfdSessUp


BFD/2/BFD_UP_TRAP:OID [oid] Session changes to UP. (Index=[integer], ConfigurationName=[octet], PeerIp=[ipaddr], BindIfIndex=[integer], BindIfName=[octet], Diagnosis=[integer], BindVrfIndex=[integer], BindVpnName=[octet], SessionType=[integer], DefaultIp=[integer], BindType=[integer], StaticLspName=[octet], PwSecondary=[integer], NextHop=[ipaddr], VcId=[integer], VsiName=[octet], VsiPeerAddress=[ipaddr], DiscrAuto=[integer], PeerIpv6=[ipv6addr], Ipv6NextHop=[ipv6addr])

The trap was generated when the BFD session changed from another state to the Up state. The statuses of the BFD session include: Up, Init, Down, and AdmDown.


Alarm ID Alarm Severity Alarm Type Major qualityOfServiceAlarm(3)


Name Meaning


Indicates the MIB object ID of the alarm.


Indicates the index of the BFD session.


Indicates the configuration name of the BFD session.


Indicates the bound destination IP address.


Indicates the index of the bound interface.


Indicates the name of the bound interface.


Indicates information about the session diagnostic characters.


Indicates the index of the bound VPN.


Indicates the name of the bound VPN.


Indicates the type of the BFD session.
  • 1: Static, indicates the statically configured BFD session.

  • 2: Dynamic, indicates the dynamically established BFD session.

  • 3: Entire_Dynamic, indicates that the establishment of a BFD session is triggered entirely dynamically. This type of BFD session is created only after the function of passively creating BFD sessions is enabled on the egress router of the LSP.

  • 4: Static_Auto, indicates the static BFD session that is established with automatically negotiated discriminators.


Indicates the default multicast IP address.


Indicates the binding type.
  • 1: interfaceIp, detects the Interface, and peer IP address, the single hop IP link.
  • 2: peerIp, detects the peer IP, the multi-hop IP link.
  • 3: sourceIp, detects the peer IP source address.
  • 4: ifAndSourceIp, detects the Interface, peer IP and source IP address.
  • 7: ospf, detects the OSPF.
  • 8: isis, detects the ISIS.
  • 9: ldpLsp, detects the LDP LSP.
  • 10: staticLsp, detects the static LSP.
  • 11: teLsp, detects the LSP bound to the TE tunnel.
  • 12: teTunnel, detects the TE tunnel.
  • 13: pw, detects the PW.
  • 15: vsiPw, detects the VSI PW.
  • 21: ldpTunnel, detects the LDP tunnel.
  • 22: bgpTunnel, detects BGP tunnel.


Indicates the name of the static LSP.


Indicates the ID of the secondary PW.


Indicates the IP address of the next hop.


Indicates the ID of the VC.


Indicates the name of the VSI.


Indicates the destination address of the VSI.


Indicates the static auto-negotiation identifier.


Indicates the bound destination IPv6 address.


Indicates the next-hop IPv6 address.

Impact on the System

After the trap function is enabled, if a large number of BFD sessions flap, high CPU will be utilized. Except for this, no service will be affected.

Possible Causes

Cause 1:

A BFD session was created. That is, the BFD session changed from Init to Up.

Cause 2:

The undo shutdown command was run to restore the BFD session. That is, the BFD session changed from AdmDown to Up.

Cause 3:

The BFD session changed from Down to Up.


  1. This alarm message is informational only, and no action is required.
Updated: 2019-03-06

Document ID: EDOC1100041475

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