Cisco IOS Software, c6880x Software (c6880x-ADVENTERPRISEK9-M), Version 15.2(1)SY4, RELEASE SOFTWARE (fc4)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2017 by Cisco Systems, Inc.
Compiled Mon 10-Apr-17 14:35 by prod_rel_team
ROM: System Bootstrap, Version 15.1(02)SY01 [ Rel 1.1], RELEASE SOFTWARE
CORE uptime is 16 weeks, 6 days, 15 hours, 37 minutes
Uptime for this control processor is 16 weeks, 6 days, 15 hours, 27 minutes
System returned to ROM by Stateful Switchover at 14:27:39 EEDT Wed May 23 2018
System restarted at 15:52:10 EEDT Wed May 23 2018
System image file is "bootdisk:/c6880x-adventerprisek9-mz.SPA.152-1.SY4.bin"
Cisco C6880-X-LE ( Intel(R) Core(TM) i3- CPU @ 2.00GHz ) processor (revision ) with 1686527K/409600K bytes of memory.
Processor board ID SAL1948U2UG
Processor signature 0xA7060200
Last reset from s/w reset
327 Virtual Ethernet interfaces
1 Gigabit Ethernet interface
64 Ten Gigabit Ethernet interfaces
1955824K bytes of USB Flash bootdisk (Read/Write)
Configuration register is 0x2102
At this point we've lost management access to AGG3 (yet no logs about OSPF neighbor down) and ~half of the active clients behind AGG3 become non-operational. Port-channels from both sides are up and running. I would appreciate any suggestions how to debug and solve the issue.
// Core Sep 19 06:38:22.574 EEDT: %LINK-SW2-3-UPDOWN: Interface TenGigabitEthernet1/1/3, changed state to down Sep 19 06:38:23.362 EEDT: %LINK-SW2-3-UPDOWN: Interface TenGigabitEthernet1/1/3, changed state to up Sep 19 06:38:23.854 EEDT: %DTP-SW2-5-TRUNKPORTON: Port Te1/1/3 has become dot1q trunk Sep 19 06:38:26.098 EEDT: %EC-SW2-5-BUNDLE: Interface Te1/1/3 joined port-channel Po4 Sep 19 06:38:26.198 EEDT: %LINEPROTO-SW2-5-UPDOWN: Line protocol on Interface TenGigabitEthernet1/1/3, changed state to up Sep 19 06:38:26.183 EEDT: %EC-SW1_STBY-5-BUNDLE: Interface Te1/1/3 joined port-channel Po4 // AGG3 Sep 19 06:38:23.816 EEDT: %LINK-3-UPDOWN: Interface TenGigabitEthernet4/1, changed state to up Sep 19 06:38:24.308 EEDT: %DTP-SP-5-TRUNKPORTON: Port Te4/1 has become dot1q trunk Sep 19 06:38:26.148 EEDT: %LINEPROTO-5-UPDOWN: Line protocol on Interface TenGigabitEthernet4/1, changed state to up Sep 19 06:38:26.100 EEDT: %EC-SP-5-BUNDLE: Interface Te4/1 joined port-channel Po4
What mode are you using for your mutichassis etherchannels? From the document below:
Do not use on and off options with PAgP or LACP or Trunk protocol negotiation.
PAgP Run Desirable-Desirable with MEC links.
LACP Run Active-Active with MEC links.
Trunk Run Desirable-Desirable with MEC links.