Michael,
Looks like ex4200 might send PAUSE frames to your uplink which could limit
traffic. Try to disable flow-control on both sides and use traffic generator to
test. If you don't have a 10G traffic generator but have a couple of 10G ports
on T-series/MX then cascaded port-mirroring could produce you a 10G packet
stream.
Rgds
Alex
----- Original Message -----
From: Michael
To: Alex
Cc: juniper-nsp@puck.nether.net
Sent: Tuesday, August 04, 2009 8:32 PM
Subject: Re: [j-nsp] ex4200 throughput trouble on 10GE interface
2009/8/4 Alex <alex.arsen...@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" <msched...@gmail.com>
To: <juniper-nsp@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@puck.nether.net
https://puck.nether.net/mailman/listinfo/juniper-nsp
2009/8/4 Alex <alex.arsen...@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" <msched...@gmail.com>
To: <juniper-nsp@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@puck.nether.net
https://puck.nether.net/mailman/listinfo/juniper-nsp
_______________________________________________
juniper-nsp mailing list juniper-nsp@puck.nether.net
https://puck.nether.net/mailman/listinfo/juniper-nsp
