9)packet传输完成之后,如果IEEE标准规定的时间戳使能了,从MTL获取的发送时间戳将被回写到发送描述符(TDES0和TDES1),如果是多个描述符的packet,则写到最后一个描述符中;相关的状态位会被写回到TDES3,并且DMA控制位会被清空,APP拿回描述符控制权;如果没有使能时间戳,则DMA不修改TDES0和TDES1; 10)如果描述符中...
3. It is doubted that the configuration of the cpu-defend car command on the NE40E causes the packet loss. Check the ICMP cpu-defend car configuration on the LPU and the command output is as follows. < NE40E-X8>disp cpu-defend car protocol icmp statistics slot 2 Slot : 2 Applicatio...
All the ICMP packets which destination is router itself will reply by LPU Card and won't send to CPU to process them, the ICMP packet originated from router itself will not be affected. 3. To change ICMP packet uploading bandwidth. Apply system car circbs slot type ipv4-redirect-icmp 4. ...
exceeded 3 packets, 1512 bytes; action: drop last packet: 6052ms ago, current burst: 8952 bytes last cleared 00:00:59 ago, conformed 6000 bps, exceeded 0 bps R4#show ip access-lists 100 Extended IP access list 100 10 permit icmp any any echo-reply (100 matches)...
exceeded 3 packets, 1512 bytes; action: drop last packet: 6052ms ago, current burst: 8952 bytes last cleared 00:00:59 ago, conformed 6000 bps, exceeded 0 bps R4#show ip access-lists 100 Extended IP access list 100 10 permit icmp any any echo-reply (100 matches)...
b) If you send a ping you will not have the ports in your packet. Why? Because ping uses ICMP, and ICMP is encapsulated directly over IP, you will not have a L4 header which contains the ports. Hence you will have only the protocol number in the IP header announcing that after IP ...
Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 2001::2, timeout is 2 seconds: !!! R5#ping ipv6 2001::2 ? data specify data pattern repeat specify repeat count size specify datagram size source specify source address or name timeout specify timeout interval verbose verb...
Therefore, no packet loss occurs before the upgrade but occurs after the upgrade. Causa-raiz The packet loss occurred because the default bandwidth at which the ICMP packets are sent to the CPU is reduced after the upgrade. Solução Increase the value of CP-CAR to enable the ping ...
[...] Capri#show atm vc interface atm3/0/2 2 63 Interface: ATM3/0/2, Type: oc3suni VPI = 2 VCI = 63 Status: UP Time-since-last-status-change: 02:07:24 Connection-type: TVC(O) Cast-type: multipoint-to-point-output Packet-discard-option: enabl...
router#show interfaces virtual-access 26 rate-limit Virtual-Access26 Cable Customers Input matches: all traffic params: 256000 bps, 7500 limit, 7500 extended limit conformed 2248 packets, 257557 bytes; action: continue exceeded 35 packets, 22392 bytes; action: drop last packet: 156ms ago, curre...