[j-nsp] ex4200 throughput trouble on 10GE interface

[Michael]

2009/8/4 Alex <alex.arseniev at gmail.com>

> Michael,
> Is the throughput impaired only during peak times? Does throughput improve
> after peak hours?

Traffic goes down in offpeak time to 1G. Difference between inbound and
outbound traffic cannot be seen. The next day peak time the situation
repeats - outbound traffic reaches a limit and does not go upper. Reboot
resolves the situation.

> Are there any drops/errors on this interface?

 On both sides there are no errors and drops. I check them by "show
interfaces xe-0/1/0 extensive" command.

>
> Is uplink sending you (perhaps too many) PAUSE frames?

Uplink is connected to catalyst 6500:
c6500-BGW-XL#sh int te3/6 | i flow
  input flow-control is on, output flow-control is off
So as I see uplink shouldn't send pause frames.
On ex4200:
> show interfaces xe-0/1/0 | match Flow
  Source filtering: Disabled, Flow control: Enabled
May be I should try to disable flow control on juniper interface?

>
> Rgds
> Alex
>
> ----- Original Message ----- From: "Michael" <mschedrin at gmail.com>
> To: <juniper-nsp at puck.nether.net>
> Sent: Tuesday, August 04, 2009 5:47 PM
> Subject: [j-nsp] ex4200 throughput trouble on 10GE interface
>
>
> Hi all,
>> Recentle I've installed first ex4200 to my core network with 10GE uplink
>> module. Now almost every day in peak time I see sudden fall of throughput
>> on
>> 10GE interface. Peak load is about 4G. At the moment outbound traffic
>> falls
>> to 3G and users notice upload speed downgrade. The only method I found to
>> resolve the problem - reboot the switch. Nothing unusual is configured on
>> switch, no QoS also. I've no idea how to troubleshoot the problem?May be
>> you
>> can point me to some worthful troubleshooting guides?
>> _______________________________________________
>> juniper-nsp mailing list juniper-nsp at puck.nether.net
>> https://puck.nether.net/mailman/listinfo/juniper-nsp
>>
>>
>
2009/8/4 Alex <alex.arseniev at gmail.com>

> Michael,
> Is the throughput impaired only during peak times? Does throughput improve
> after peak hours?

Traffic goes down in offpeak time to 1G. Difference between inbound and
outbound traffic cannot be seen. The next day peak time the situation
repeats - outbound traffic reaches a limit and does not go upper. Reboot
resolves the situation.

> Are there any drops/errors on this interface?

 On both sides there are no errors and drops. I check them by "show
interfaces xe-0/1/0 extensive" command.

>
> Is uplink sending you (perhaps too many) PAUSE frames?

Uplink is connected to catalyst 6500:
c6500-BGW-XL#sh int te3/6 | i flow
  input flow-control is on, output flow-control is off
So as I see uplink shouldn't send pause frames.
On ex4200:
> show interfaces xe-0/1/0 | match Flow
  Source filtering: Disabled, Flow control: Enabled
May be I should try to disable flow control on juniper interface?

>
> Rgds
> Alex
>
> ----- Original Message ----- From: "Michael" <mschedrin at gmail.com>
> To: <juniper-nsp at puck.nether.net>
> Sent: Tuesday, August 04, 2009 5:47 PM
> Subject: [j-nsp] ex4200 throughput trouble on 10GE interface
>
>
>  Hi all,
>> Recentle I've installed first ex4200 to my core network with 10GE uplink
>> module. Now almost every day in peak time I see sudden fall of throughput
>> on
>> 10GE interface. Peak load is about 4G. At the moment outbound traffic
>> falls
>> to 3G and users notice upload speed downgrade. The only method I found to
>> resolve the problem - reboot the switch. Nothing unusual is configured on
>> switch, no QoS also. I've no idea how to troubleshoot the problem?May be
>> you
>> can point me to some worthful troubleshooting guides?
>> _______________________________________________
>> juniper-nsp mailing list juniper-nsp at puck.nether.net
>> https://puck.nether.net/mailman/listinfo/juniper-nsp
>>
>>
>