[j-nsp] iSCSI on EX4550 switch port

[Jonathan Call]

Two strikes against it:
MTU 9014
Ethernet flow control disabled

I'll look into the shared-buffer setting.

Jonathan

From: Alexandre Guimaraes <alexandre.guimaraes at ascenty.com>
Sent: Friday, June 8, 2018 4:21 AM
To: Mark Tinka
Cc: Simone Spinelli; Jonathan Call; juniper-nsp at puck.nether.net
Subject: Re: [j-nsp] iSCSI on EX4550 switch port
  

I agree with Mark.

Unfortunately, There is no other switch with the same features with more buffer. As far as I know.

att
Alexandre

Em 8 de jun de 2018, à(s) 07:05, Mark Tinka <mark.tinka at seacom.mu> escreveu:

> The EX4550 has terribly small buffers (4MB if memory serves - pun intended).
> 
> Do you have this setup:
> 
>     set class-of-service shared-buffer percent 100
> 
> It has helped us for a while, but it's time to kick this box out.
> 
> Mark.
> 
>> On 8/Jun/18 07:55, Simone Spinelli wrote:
>> MTU?
>> Ethernet flow control?
>> 
>> My 2 cents.
>> Simone
>> 
>>> On Fri, 8 Jun 2018 at 01:28, Jonathan Call <lordsith49 at hotmail.com> wrote:
>>> 
>>> I have a NetApp using iSCSI sitting on an EX4550. The iSCSI port on the
>>> EX4500 is dropping packets on a regular basis, but its queue length is
>>> always zero:
>>> 
>>>  Queue counters:       Queued packets  Transmitted packets      Dropped
>>> packets
>>>    0 best-effort                    0           1518576563
>>> 1510331
>>>    1 assured-forw                   0                    0
>>>    0
>>>    5 expedited-fo                   0                    0
>>>    0
>>>    7 network-cont                   0               138429
>>>    0
>>> 
>>> Before I start messing with queues/Class of Service setting I'm curious if
>>> anyone has seen this before and might steer me in a good direction to find
>>> out what is going on? (Other than getting rid of this old EX4550)
>>> 
>>> Jonathan
>>> 
>>> _______________________________________________
>>> juniper-nsp mailing list juniper-nsp at puck.nether.net
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