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New Member

Series 800 showing 0 bits/second on FastEthernet

I noticed that my Cisco 831 is showing 0 bits/second on all FastEthernet ports but the Ethernet ports display bits/second. Is there a reason for this difference? Can this be changed and if it is changed what is the implications if any?

Thanks.

6 REPLIES
Bronze

Re: Series 800 showing 0 bits/second on FastEthernet

hii,

can you please elaborate on what connections are terminated on both these i/f??

New Member

Re: Series 800 showing 0 bits/second on FastEthernet

Sure. Ethernet1 is the WAN port on the output of the router that connects to the CableModem. The FastEthernet1-4 ports are the 4 ports on the router that are connected to other things. FastEthernet1 is my Linksys PAP for VOIP that I am trying to setup QOS on. My configuration isn't working here from what I can see so I am starting at the top trying to figure out why the FastEthernet isn't displaying traffic in bits/second.

Does this help?

Re: Series 800 showing 0 bits/second on FastEthernet

Hi Allen

What kinda QOS you are trying to apply over there in your router ?

Since its gonna be a internet connection i don't think QOS wont be effective in your scenario.

Also you query on the bits/second is also not very clear.

Are you trying to get some info like traffic statistics from your router?

Can you post the show interface outputs of the respective interfaces ?

regds

New Member

Re: Series 800 showing 0 bits/second on FastEthernet

Thanks for the note. Clearly QOS won't be as effective as if I could tag the items and pass through the entire network but I am attempting to give LLQ priority to packets from the Linksys PAP port to that traffic. All I can hope to accomplish is to make certain my PAP traffic takes priority over my other upload traffic. This obviously may not work as well as I hope but should give me some benefit by throttling down the internet upload traffic when I am on the phone.

I know something isn't configured correctly which is why I am starting at the top one step at a time.

Per request -- the show interface commands. I have attempted to highlight the areas in question with HTML bold commands. I am looking at the 5 minute lines and the pack input line. I did in fact exercise FastEthernet1 when I capture this out.

Thanks so much for the ideas.

show interface Ethernet1

Ethernet1 is up, line protocol is up

Hardware is PQUICC_FEC, address is 000e.a6cb.b310 (bia 0013.c472.ddce)

Internet address is 24.4.3.209/22

MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec,

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

Encapsulation ARPA, loopback not set

Keepalive set (10 sec)

Full-duplex, 10Mb/s

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

Last input 00:00:00, output 00:00:04, output hang never

Last clearing of "show interface" counters never

Input queue: 0/75/11016/0 (size/max/drops/flushes); Total output drops: 0

Queueing strategy: fifo

Output queue: 0/40 (size/max)

5 minute input rate 23000 bits/sec, 4 packets/sec

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

4207881 packets input, 838780668 bytes, 55 no buffer

Received 2323814 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

1842853 packets output, 407870163 bytes, 0 underruns

3 output errors, 0 collisions, 2 interface resets

0 babbles, 0 late collision, 0 deferred

3 lost carrier, 0 no carrier

0 output buffer failures, 0 output buffers swapped out

show interface FastEthernet1

FastEthernet1 is up, line protocol is up

Hardware is FastEthernet, address is 0000.0000.0000 (bia 0000.0000.0000)

MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,

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

Encapsulation ARPA, loopback not set

Keepalive set (10 sec)

Auto-duplex, Auto Speed, 100BaseTX/FX

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

Last input never, output never, 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: Class-based queueing

Output queue: 0/1000/64/0 (size/max total/threshold/drops)

Conversations 0/0/256 (active/max active/max total)

Reserved Conversations 0/0 (allocated/max allocated)

Available Bandwidth 74810 kilobits/sec

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

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

34545 packets input, 0 bytes

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

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

0 watchdog

0 input packets with dribble condition detected

42625 packets output, 0 bytes, 0 underruns

0 output errors, 0 collisions, 1 interface resets

0 babbles, 0 late collision, 0 deferred

0 lost carrier, 0 no carrier

0 output buffer failures, 0 output buffers swapped out

Re: Series 800 showing 0 bits/second on FastEthernet

Hi

You are not seeing the data on the input rate line because of the high bandwidth capacity of the interface.

The Calculation being done to derive the input and output rates does takes the speed parameter configured under the interface.

In the previous case of ethernet interface the base value being used is 10000 Kbit and now with the new fastethernet interface it takes 100000 Kbit for calulation.

Since it may be a negligible traffic when compared to the base value which it can display thats the main reason you are not seeing traffic stat details on the interface.

You can try changing the speed to 10Mbps and check ,but its better to operate with 100Mbps on the operational point of view.

Also you can try changing load-interval to 30 seconds instead of the default 5 mins.

load-interval 30 is the command required under the interface to change the same.

regds

Bronze

Re: Series 800 showing 0 bits/second on FastEthernet

Hii,

the interface rate of 0 as shown is visible due to the negligent traffic as compared to the exteranal i/f where its showing 23 odd traffic.further pls set the interface interval to 30 seconds so that there could be a better minute polling of the traffic.

pls rate if it helps.

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