12-02-2007 01:05 AM - edited 03-03-2019 07:45 PM
Dear
I have drop in the backet when I ping why, what is the mean resone in the drop I check the physical I change the cable I change the switches.
12-02-2007 06:04 AM
Hi,
Duplex mismatch are common cause of drop packets when pinging a host. Although there are documentations that vendors (including Cisco) recommends leaving the settings to Auto/Auto, experience dictates to harcode the speed and duplex to say 100Mbps/FullDuplex specially for the following: Router, Firewall, Switch, and Server. To find the segment that causing the packet drops, you can execute "show interface interface_name_number" and look for drop packet, errors, and collissions.
Other cause of drop packets;
- Faulty cabling
- Congestion
- Faulty NIC
- Routing loop
- Network device has high CPU/MEM util (probably under DDOS attack)
- Harmonics
Regards,
Dandy
12-02-2007 08:58 PM
Thank you for strong intformation, but this is serial connection and I thing as you mention because routing loop int OSPf because when I do
debug IP ospf hello
the neig go down, and go up every seconed
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