• 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.

Legend

Task Type

 The type of the task. normal work for all services

Category

 The category of the task. normal work for all services with upcoming tasks / announcements

Summary

 A short summary of the task. active issues or failures

Status

 The status of the task. service status unknown or not updated yet

Last Edited

 The date when the task was last edited.

Progress

 The progress of the task in percent.