Path Down:这表示两个BFD邻居之间的转发路径不再运行,可能是因为网络拥塞、硬件故障或其他问题。 2024 Apr 11 22:07:07 SW2 %BFD-5-SESSION_STATE_DOWN: BFD session 1090519062 to neighbor 172.16.1.1 on interface Vlan20 has gone down. Reason: Path Down. ...
Cisco Bug: CSCuy02015 NGN: BFD doesn't come up on bundle-ether after physical switchover Last Modified Jan 08, 2025Products (1) Cisco Network Convergence System 6000 Series RoutersKnown Affected Release Description (partial) Symptom: BFD session Down on Bundle-ether interface on NCS6K SC. ...
In this mode, the systems periodically send BFD Control packets to one another, and if a number of those packets in a row are not received by the other system, the session is declared to be down. The second mode is known as Demand mode. In this mode, it is assumed that a system ha...
If the transport-side BFD session is down, check the packet filter data under the Cisco Catalyst SD-WAN tunnel interface to ensure that you have allowed the BFD packets to pass through on the transport side. Look for allow-service bgp and allow-service bfd in the o...
Oct 26 12:11:26: BFD-DEBUG Event: V1 FSM ld:1 event:Session create state:DOWN (0)Oct 26 12:11:26: BFD-DEBUG Packet: Tx IP:x.x.x.x ld/rd:1/0 diag:0 Down cnt:1 (0)Oct 26 12:11:26: BFD-DEBUG Packet: Rx IP:x.x.x.x ld/rd:1/0 diag:0 Down cnt:1 ttl:254 (0)...
Note In order to display the full output of the show bfd neighbors details command on a Cisco 12000 series router, you must enter the command on the line card. Ente 38、r the attach slot-number command to establish a CLI session with a line card. The registered protocols are not shown ...
The workaround is to shut down the interface, change to a supported encapsulation type, and then reconfigure BFD. A single BFD session can be used by an IPv4 static client to track the reachability of next hops through a specific interface. You can assign a BFD group for a set of BFD-...
步骤3 配置SwitchA和SwitchD之间的BFD会话 # 在SwitchA上配置与SwitchD之间的BFD Session。 [~SwitchA] bfd [~SwitchA-bfd] quit [~SwitchA] bfd atod bind peer-ip 8.1.1.2 [~SwitchA-bfd-session-atod] discriminator local 10 [~SwitchA-bfd-session-atod] discriminator remote 20 [~SwitchA-bfd-...
dis bfd session all [SW3]display stp region-configuration 查看MST的相关参数 其他补充*** 作用原理:当边缘端口配置了BPDU保护以后,边缘端口在收到BPDU以后,该接口会进入err-down,端口角色变成DP,端口状态变成discarding 恢复: 1、手动,在接口视图下undo shutdown 2、自动,[Huawei]error...
1.1 Cisco 设备 1.1.1 BFD 配置语法说明：配置步骤 1. enable 2. configure terminal 3. interface type number 4. bfd interval milliseconds min_rx milliseconds multiplier intervalmultiplier 5. end 1.1.2 BFD For Static Route 1. enable 2. configure terminal 3. interface type number 4. ip ...