Cisco Support Community
Showing results for 
Search instead for 
Did you mean: 
New Member

Cable Modem And Ping Time

Dear All

I have CISCO router (2500) behind my cable modem.

When i ping from my router to ISP gateway or anywhere else i get 40% packet loss.

The router Ethernet is on default values. I have checked this problem with other cisco devices (2600 router, Cisco concentrator and Cisco layer 3 switch) but the problem remains there.

But when i plug in that cable modem to my windows 2000 machine it works fine the packet loss 0%.

New Member

Re: Cable Modem And Ping Time

Have you done a "show interface" on that ethernet interface to see if you have any errors or collisions? Check and see if you have a duplex mis-match somewhere.

New Member

Re: Cable Modem And Ping Time

I have checked all the interfaces there is nothing like that.

Router>sh int ethernet 0/1

Ethernet0/1 is up, line protocol is down

Hardware is AmdP2, address is 00b0.64c0.5021 (bia 00b0.64c0.5021)

Internet address is

MTU 1500 bytes, BW 10000000 Kbit, DLY 1000 usec,

reliability 199/255, txload 1/255, rxload 1/255

Encapsulation ARPA, loopback not set

Keepalive set (10 sec)

ARP type: ARPA, ARP Timeout 04:00:00

Last input never, output 00:00:00, output hang never

Last clearing of "show interface" counters never

Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0

Queueing strategy: fifo

Output queue: 0/40 (size/max)

5 minute input rate 0 bits/sec, 0 packets/sec

5 minute output rate 0 bits/sec, 0 packets/sec

0 packets input, 0 bytes, 0 no buffer

Received 0 broadcasts, 0 runts, 0 giants, 0 throttles

0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored

0 input packets with dribble condition detected

30 packets output, 2049 bytes, 0 underruns

30 output errors, 0 collisions, 2 interface resets

0 babbles, 0 late collision, 0 deferred

30 lost carrier, 0 no carrier

0 output buffer failures, 0 output buffers swapped ou

CreatePlease to create content