What does each error value in the display ospf error command output mean on an S series switch

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Q: What does each error value in the display ospf error command output mean?
A: For the meaning of each error value in the display ospf error command output on an S series switch, see What Does Each Error Value in the Output of the display ospf error Command Mean?.

Other related questions:
What are the meanings of flags in the display fib command output for S series switches
Q: What are the meanings of flags in the display fib command output? A: The values of flags are as follows: B: indicates a blackhole route, that is, a route with the outbound interface being NULL0. D: indicates a route generated by a dynamic routing protocol such as IS-IS, OSPF, BGP, or RIP. G: indicates a gateway route, that is, a route destined for a gateway. H: indicates a host route. L: indicates a route generated by Address Resolution Protocol (ARP) or End System to Intermediate System (ESIS) routing exchange protocol, which is common in VLAN-ARP scenarios. S: indicates a static route, that is, a route configured using the ip route-static command or configured on the NMS. U: indicates that a route is reachable.

What is the meaning of the tracert command output on an S series switch
For S series switches (except the S1700), the tracert command displays information about the path on which packets are sent from the source to the destination and checks network connectivity. When a fault occurs on the network, you can run this command to locate the fault. This command is used as follows: [HUAWEI] tracert 192.168.10.10 traceroute to 192.168.10.10(192.168.10.10),max hops: 30 ,packet length: 40,press CTRL_C to break 1 10.16.16.12 23 ms 12 ms 6 ms 2 * * * 3 192.168.10.10 5 ms !<10> 5ms !<10> 6ms !<10> The command output is described as follows: 1 indicates the first-hop gateway. The sequence number increases by each hop. By default, the maximum number of hops is 30. 10.16.16.12 indicates the gateway address of the first hop. The IPv4 address following the serial number of each hop is the gateway address of the hop. 23 ms 12 ms 6 ms indicates the time difference between the three sent UDP packets and the received ICMP Time Exceeded or ICMP Destination Unreachable packets. * * * indicates that no ICMP Time Exceeded packet or ICMP Destination Unreachable packet is received on the second-hop device within a specified period. ! indicates an ICMP Destination Unreachable packet. <10> indicates that the value of the Code field in the ICMP packet is 10, which means that the Destination host is administratively prohibited. There are no reachable routes between the destination host and the source address. This packet is sent by the default gateway of the destination host. For the meanings of other values of the Type and Code fields in an ICMP packet, see Chapter 6 in TCP/IP Illustration Volume I.

After I run the display fib command, what does flag mean in the command output
Currently, Flag can have the following values:
  • B: a blackhole route, that is, a route with the outbound interface NULL0.
  • D: a route generated by a dynamic routing protocol such as Intermediate System to Intermediate System routing protocol (IS-IS), open shortest path first (OSPF), Border Gateway Protocol (BGP), or Routing Information Protocol (RIP).
  • G: a gateway route, that is, a route with a gateway as the destination address.
  • H: a host route.
  • S: a static route, that is, a route configured using the ip route-static command or configured on the network management system (NMS).
  • U: a route that is reachable.

An error message is displayed during the mirroring configuration on an S series switch
If an error message similar to the following is displayed when you configure the mirroring function on an S series switch: Error: Insufficient observe-port resource. It indicates that the number of configured observing ports has reached the upper limit. To perform new mirroring configuration, delete unnecessary mirroring configurations or other service configurations that use observing port resources. For example, MPLS OAM or BFD configuration consumes observing port resources on some devices. Alternatively, use other features to implement traffic monitoring.

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