IP traffic statistics include statistics about received packets (including discarded packets that carry source-route options), sent packets, fragmented packets, and reassembled packets. If a large number of bad protocol and no route fields is displayed in the command output, the device receives a large volume of IP packets of unknown protocol types and IP packets for which no routes can be found. In this situation, the device may be attacked by the connected devices.
# Display IP traffic statistics.
<HUAWEI> display ip statistics
Input: sum 263482 local 263473 bad protocol 0 bad format 1 bad checksum 0 bad options 0 discard srr 0 discard rr 0 discard ra 0 discard ts 0 TTL exceeded 0 Output: forwarding 0 local 303399 dropped 56479 no route 225 Fragment: input 0 output 0 dropped 0 fragmented 0 couldn't fragment 0 Reassembling:sum 0 timeouts 0
Item |
Description |
---|---|
Input |
Received packets. |
sum |
Total number of packets. |
local |
Number of packets sent to the upper-layer protocol. |
bad protocol |
Number of received IP packets of unknown protocol types. The protocol field in the IP header cannot be identified by the upper-layer protocol. |
bad format |
Number of packets in incorrect format. |
bad checksum |
Number of packets with checksum errors. |
bad options |
Number of packets with incorrect options. |
discard srr |
Number of discarded packets with source route options. |
discard rr |
Indicates the number of packets that are received and then discarded because of record-route options. |
discard ra |
Indicates the number of packets that are received and then discarded because of alert-route options. |
discard ts |
Indicates the number of packets that are received and then discarded because of time stamps options. |
TTL exceeded |
Number of packets discarded because the TTL expires. |
Output |
Sent packets. |
forwarding |
Number of forwarded packets. |
local |
Number of generated packets. |
dropped |
Number of discarded packets. |
no route |
Number of packets for which no correct route can be found, including the packets sent and forwarded by the local device. |
Fragment |
Number of packet fragments. |
input |
Number of received fragments. |
output |
Number of sent fragments. |
dropped |
Number of discarded fragments. |
fragmented |
Number of successfully fragmented packets. |
couldn't fragment |
Number of packets that cannot be fragmented. |
Reassembling:sum |
Number of successfully reassembled fragments. |
timeouts |
Number of expired fragments. |