• Status Closed
  • Percent Complete
    100%
  • Task Type Incident
  • Category Involved Service
Attached to Section: Network
Opened by Admin - 2017-05-02

FS#2081 - Packet loss at esw-d.c.1.2 (c2960-9)

we see some packet drops at portchannel uplink at edge switch in datacenter Jena 1-D.
Closed by Admin
Monday, 25 September 2017, 18:19 GMT
Reason for closing:  Finished
Admin
Tuesday, 02 May 2017, 17:18 GMT
at the moment we see some outgoing packet drops at the pc interface on uplink. we will investigate this issue.

impact for customers:
* packet loss to gateway around 3-5%
no further issues known.
Admin
Wednesday, 03 May 2017, 18:15 GMT
Software configuration changed, no further loss on uplink accurs
Admin
Sunday, 14 May 2017, 15:23 GMT
the issue with packet loss itself has been resolved but customers report issues with low bandwidth.
we will check the physical cabling.
Admin
Thursday, 18 May 2017, 05:27 GMT
We will reboot the switch within Time Windows 0700 - 0800 CEST at 18.5.2017
Admin
Thursday, 18 May 2017, 12:47 GMT
Reboot done
Admin
Monday, 22 May 2017, 09:45 GMT
the switch is planned for maintenance at 23.5.2017, 0800-2000h CEST

impact for customers:
* connection loss for about 10-30 Minutes
* Packet loss to Gateway / First Hop

Admin
Tuesday, 06 June 2017, 08:51 GMT
It is planned to proceed with debugging of this issue in CW24 with further changes in datacenter settings.
Admin
Wednesday, 07 June 2017, 14:59 GMT
We have implemented a workaround to remove the packet loss.
Now, we do not see any packet loss at this switch.
Admin
Tuesday, 13 June 2017, 10:15 GMT
We now prepare to switch to a final solution. This means we will switch to another linecard.

It is planned to implement the final solution at:
Date: 14.06.2017
Time Window: 0800 - 1800 CEST

Impact for customers:
* full connectivity loss for around 5 minutes
* no further impact expected
Admin
Wednesday, 14 June 2017, 14:59 GMT
We have moved the switch-uplinks to another linecard.
Admin
Wednesday, 14 June 2017, 16:18 GMT
additional uplink added
Admin
Tuesday, 20 June 2017, 09:34 GMT
We have moved again the switch-uplinks to another linecard.
Admin
Monday, 25 September 2017, 18:19 GMT
the packet loss does not longer occur since we have exchanged all linecards in the path.

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