On Sat, 23 Nov 2002, Priscilla Oppenheimer wrote: |->Don't believe everything you hear! ;-) Couple comments inline.
I dont. |->They can't tell if packets are getting dropped from trace route? Just |->because your router doesn't send back the ICMP TTL doesn't mean it's |->dropping packets. It could simply be rate-limiting ICMP, or could have |->access lists, or could be just dropping packets that require process |->switching, or doing a number of other reasonably healthy actions. It has access lists of course. It only happens some of the time though. |->> They have told us to config our ethernet port to half duplex so |->> packets |->> will be retransmitted if they get lost in their ATM cloud so we |->> have a |->> fairly high collison rate on this port. I dont know enough |->> about ATM to |->> say if this is good or bad...? |-> |->If they really said that, ask to talk to a more senior engineer. That's a |->clueless comment. If packets get lost in the ATM cloud, you can't do |->anything about it on your router's Ethernet interface! I was told that by someone from their sales, who said he got it from their techs when I first looked into the duplex issue...hmm...posted that question to inet-access at least a year ago now. I have always been suspicous of that. time to open that case again... |->However, you should definitely troubleshoot the collision rate. If you're |->set to full duplex, there should be 0 collisions. It sounds like there's a |->duplex mismatch problem. No its half-duplex, their router is set to half as well...its always made me wonder about why they have insisted on a half-duplex connection. |->> Output queue 0/40, 1466359 drops; input queue 0/75, 0 drops |-> |->The 0 input queue drops are a good sign, but the 1466359 drops on the output |->queue could be bad. But it could be normal too. You need to compare it to |->the number of packets output. The ratio of dropped to sent should hopefully |->be less than about 5%, although it really depends on the traffic flow. We have an ACL set to rate limit outgoing traffic on that interface so drops outbound there is not a concern. |->Is this interface 100 Mbps? I think you said it was. If it's getting fed my |->multiple highly-used 100 Mbps interfaces, it has to drop packets. That's |->normal. Ok thanks! You were helpful. Keith Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=57951&t=57922 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
