04-09-2007 06:02 AM - edited 03-03-2019 04:28 PM
Hi All
I have an Etherchannel between 2 7600.
using a tester I can see that I am loosing packets, but looking at the usual stats I am unable to see where they are being dropped.
the total link is 2X10Gb and I am pumping 10Mb only. I also have WRED and broadcast storm control with 30% threshold.
-no drops registred at interface level.
-no drops at QOS level.
I removed Broadcast control, still dropping packets. the odd thing is that, when generating traffic from 1Mb-5Mb all is fine, after that I start dropping.
Any pointers or suggestions will be great help.
TIA
Sam
04-09-2007 09:52 PM
Adding configs.
please note, config for TE interfaces is obviously the same.
TIA
Sam
interface Port-channel1
switchport
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 100
switchport mode trunk
no ip address
mls qos vlan-based
mls qos trust dscp
flowcontrol send off
storm-control broadcast level 30.00
storm-control multicast level 30.00
end
!
interface TenGigabitEthernet2/4 & TE1/4
switchport
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 100
switchport mode trunk
no ip address
udld port aggressive
wrr-queue threshold 2 100 100 100 100 100 100 100 100
wrr-queue random-detect min-threshold 1 40 70 100 100 100 100 100 100
wrr-queue random-detect min-threshold 2 70 100 100 100 100 100 100 100
wrr-queue random-detect min-threshold 3 70 100 70 100 100 100 100 100
wrr-queue random-detect max-threshold 2 100 100 100 100 100 100 100 100
wrr-queue cos-map 3 1 3
wrr-queue cos-map 3 2 4
wrr-queue cos-map 3 3 6 7
mls qos vlan-based
mls qos trust dscp
storm-control broadcast level 30.00
storm-control multicast level 30.00
channel-group 1 mode desirable
04-10-2007 06:21 AM
So show interfaces error counters look ok? Is your tester able to read jumbo frames as valid?
04-10-2007 09:13 AM
no errors on interfaces
no drops on polic? maps
no drops on WRED
no drops on MLS
tester shows frame loss
I am suspecting CSCee10005, but need to take down DEC and see what happens.
The only thing that is bugging me, is why are the packets dropping when I go over 5Mb.
There is absolutely no rate limiting anywhere else than those interfaces I am looking at.
TIA
Sam
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