Re: Ethernet Interface Collisions Incresing rapidly [7:71176]
The cisco bridge operates in Half-duplex and that is why half-duplex. The Router is a Cisco 1751 with WIC-1ENET, which is connected to the Wireless Bridge. I checked with the output Interpreter on CCO and it said the collisions are more than 0.53 much higher than 0.1 normal rate. Here's the output of sh interfaces e 0/0 Ethernet0/0 is up, line protocol is up Hardware is PQUICC Ethernet, address is 0004.dd0d.5502 (bia 0004.dd0d.5502) Internet address is 172.20.1.2/24 MTU 1500 bytes, BW 1 Kbit, DLY 1000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Half-duplex, 10BaseT ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:00, output 00:00:00, output hang never Last clearing of show interface counters 3d20h Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: weighted fair Output queue: 0/1000/64/0 (size/max total/threshold/drops) Conversations 0/5/256 (active/max active/max total) Reserved Conversations 0/0 (allocated/max allocated) Available Bandwidth 7200 kilobits/sec 5 minute input rate 53000 bits/sec, 13 packets/sec 5 minute output rate 8000 bits/sec, 13 packets/sec 4528216 packets input, 642790340 bytes, 0 no buffer Received 176451 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 6314935 packets output, 279254727 bytes, 0 underruns 59281 output errors, 86548 collisions, 0 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier 0 output buffer failures, 0 output buffers swapped out Thanks, neil neil K wrote in message news:[EMAIL PROTECTED] One of my Cisco router's Ethernet interface connected to a Cisco Wireless Bridges has the interface collisions counter increasing rapidly. Over a period of 48 hrs the collision counter was 60,000 and the output error counter was more than 4. Both the Ethernet interface on the router and the Cisco Wireless bridge are set to 10/Half-duplex. There is nothing in between the bridge and the Router Ethernet, connected by a cross-over cable. What could be causing this. Any comments, neil Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71221t=71176 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Ethernet Interface Collisions Incresing rapidly [7:71176]
The Cisco bridge operates in Half-duplex and that is why half-duplex. The Router is a Cisco 1751 with WIC-1ENET, which is connected to the Wireless Bridge. I checked with the output Interpreter on CCO and it said the collisions are more than 0.53 much higher than 0.1 normal rate. Here's the output of sh interfaces e 0/0 Ethernet0/0 is up, line protocol is up Hardware is PQUICC Ethernet, address is 0004.dd0d.5502 (bia 0004.dd0d.5502) Internet address is 172.20.1.2/24 MTU 1500 bytes, BW 1 Kbit, DLY 1000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Half-duplex, 10BaseT ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:00, output 00:00:00, output hang never Last clearing of show interface counters 3d20h Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: weighted fair Output queue: 0/1000/64/0 (size/max total/threshold/drops) Conversations 0/5/256 (active/max active/max total) Reserved Conversations 0/0 (allocated/max allocated) Available Bandwidth 7200 kilobits/sec 5 minute input rate 53000 bits/sec, 13 packets/sec 5 minute output rate 8000 bits/sec, 13 packets/sec 4528216 packets input, 642790340 bytes, 0 no buffer Received 176451 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 6314935 packets output, 279254727 bytes, 0 underruns 59281 output errors, 86548 collisions, 0 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier 0 output buffer failures, 0 output buffers swapped out Thanks, neil Priscilla Oppenheimer wrote in message news:[EMAIL PROTECTED] Collisions go up normally with load. What is the load? Could something else (an attack or trojan horse or just excitement about your terrific content) have caused the load to go way up? Cisco says that no more than 0.1 percent of frames should experience collisions. How many frames have there been in the time that the collisions went up? How does that compare to your baseline? By the way, why do you have the interfaces set to half duplex? Why don't you set them them to full since it's a point-to-point link? Priscilla neil K wrote: One of my Cisco router's Ethernet interface connected to a Cisco Wireless Bridges has the interface collisions counter increasing rapidly. Over a period of 48 hrs the collision counter was 60,000 and the output error counter was more than 4. Both the Ethernet interface on the router and the Cisco Wireless bridge are set to 10/Half-duplex. There is nothing in between the bridge and the Router Ethernet, connected by a cross-over cable. What could be causing this. Any comments, neil Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71254t=71176 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Ethernet Interface Collisions Incresing rapidly [7:71176]
Don't you divide the number of collisions by the number of output packets to get the rate? If so, 86548/6314935=0.013, which is pretty close to .1 in my book. Mark The Cisco bridge operates in Half-duplex and that is why half-duplex. The Router is a Cisco 1751 with WIC-1ENET, which is connected to the Wireless Bridge. I checked with the output Interpreter on CCO and it said the collisions are more than 0.53 much higher than 0.1 normal rate. Here's the output of sh interfaces e 0/0 Ethernet0/0 is up, line protocol is up Hardware is PQUICC Ethernet, address is 0004.dd0d.5502 (bia 0004.dd0d.5502) Internet address is 172.20.1.2/24 MTU 1500 bytes, BW 1 Kbit, DLY 1000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Half-duplex, 10BaseT ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:00, output 00:00:00, output hang never Last clearing of show interface counters 3d20h Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: weighted fair Output queue: 0/1000/64/0 (size/max total/threshold/drops) Conversations 0/5/256 (active/max active/max total) Reserved Conversations 0/0 (allocated/max allocated) Available Bandwidth 7200 kilobits/sec 5 minute input rate 53000 bits/sec, 13 packets/sec 5 minute output rate 8000 bits/sec, 13 packets/sec 4528216 packets input, 642790340 bytes, 0 no buffer Received 176451 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 6314935 packets output, 279254727 bytes, 0 underruns 59281 output errors, 86548 collisions, 0 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier 0 output buffer failures, 0 output buffers swapped out Thanks, neil Priscilla Oppenheimer wrote in message news:[EMAIL PROTECTED] Collisions go up normally with load. What is the load? Could something else (an attack or trojan horse or just excitement about your terrific content) have caused the load to go way up? Cisco says that no more than 0.1 percent of frames should experience collisions. How many frames have there been in the time that the collisions went up? How does that compare to your baseline? By the way, why do you have the interfaces set to half duplex? Why don't you set them them to full since it's a point-to-point link? Priscilla neil K wrote: One of my Cisco router's Ethernet interface connected to a Cisco Wireless Bridges has the interface collisions counter increasing rapidly. Over a period of 48 hrs the collision counter was 60,000 and the output error counter was more than 4. Both the Ethernet interface on the router and the Cisco Wireless bridge are set to 10/Half-duplex. There is nothing in between the bridge and the Router Ethernet, connected by a cross-over cable. What could be causing this. Any comments, neil Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71278t=71176 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Ethernet Interface Collisions Incresing rapidly [7:71176]
Collisions go up normally with load. What is the load? Could something else (an attack or trojan horse or just excitement about your terrific content) have caused the load to go way up? Cisco says that no more than 0.1 percent of frames should experience collisions. How many frames have there been in the time that the collisions went up? How does that compare to your baseline? By the way, why do you have the interfaces set to half duplex? Why don't you set them them to full since it's a point-to-point link? Priscilla neil K wrote: One of my Cisco router's Ethernet interface connected to a Cisco Wireless Bridges has the interface collisions counter increasing rapidly. Over a period of 48 hrs the collision counter was 60,000 and the output error counter was more than 4. Both the Ethernet interface on the router and the Cisco Wireless bridge are set to 10/Half-duplex. There is nothing in between the bridge and the Router Ethernet, connected by a cross-over cable. What could be causing this. Any comments, neil Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71180t=71176 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Ethernet Interface Collisions Incresing rapidly [7:71176]
Collisions would be normal on a 10 half link, but the output errors are a little odd. Are the interfaces reporting late collisions and interface resets also? If so, I would try changing out the cable, late collisions/repeated interface resets usually indicate a bad cable or bad hardware. Of course, you could just be trying to stuff too much data down the link, what is the average bandwidth utilization? -Original Message- From: neil K [mailto:[EMAIL PROTECTED] Sent: Monday, June 23, 2003 4:13 PM To: [EMAIL PROTECTED] Subject: Ethernet Interface Collisions Incresing rapidly [7:71176] One of my Cisco router's Ethernet interface connected to a Cisco Wireless Bridges has the interface collisions counter increasing rapidly. Over a period of 48 hrs the collision counter was 60,000 and the output error counter was more than 4. Both the Ethernet interface on the router and the Cisco Wireless bridge are set to 10/Half-duplex. There is nothing in between the bridge and the Router Ethernet, connected by a cross-over cable. What could be causing this. Any comments, neil Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71185t=71176 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Ethernet Interface Collisions Incresing rapidly [7:71176]
reboot the bridge try a different crossover cable. can you set them both to full-duplex? (probably not on the bridge) can you recreate the problem by connecting the bridge to another router to test it? is this problem new? is any of the equipment new? neil K wrote in message news:[EMAIL PROTECTED] One of my Cisco router's Ethernet interface connected to a Cisco Wireless Bridges has the interface collisions counter increasing rapidly. Over a period of 48 hrs the collision counter was 60,000 and the output error counter was more than 4. Both the Ethernet interface on the router and the Cisco Wireless bridge are set to 10/Half-duplex. There is nothing in between the bridge and the Router Ethernet, connected by a cross-over cable. What could be causing this. Any comments, neil Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71183t=71176 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
