cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
121
Views
5
Helpful
0
Replies
Highlighted
Enthusiast

Nexus upgrade impact for short LACP timeout

I am planning to upgrade my Nexus 7009 and when I did the "show impact", it asked me to run "show lacp issu-impact" which gave me a few ports that are not "ISSU ready". I researched and found that even though they don't have "lacp fast rate" enabled, their LACP neighbor does.

# sho lacp interface e101/1/20
Interface Ethernet101/1/20 is up
  Channel group is 2320 port channel is Po2320
  PDUs sent: 4733761
  PDUs rcvd: 158426
  Markers sent: 0
  Markers rcvd: 0
  Marker response sent: 0
  Marker response rcvd: 0
  Unknown packets rcvd: 0
  Illegal packets rcvd: 0
Lag Id: [ [(7f9b, 0-23-4-ee-be-cb, 8910, 8000, 2214), (ffff, f0-1f-af-e7-c8-fe,
11, ff, 1)] ]
Operational as aggregated link since Sat Jul 25 13:49:58 2020

Local Port: Eth101/1/20   MAC Address= d8-67-d9-79-a1-43
  System Identifier=0x8000,d8-67-d9-79-a1-43
  Port Identifier=0x8000,0x2214
  Operational key=35088
  LACP_Activity=active
  LACP_Timeout=Long Timeout (30s)  Synchronization=IN_SYNC
  Collecting=true
  Distributing=true
Actor Admin State=(Ac-1:To-1:Ag-1:Sy-0:Co-0:Di-0:De-0:Ex-0)
Actor Oper State=(Ac-1:To-0:Ag-1:Sy-1:Co-1:Di-1:De-0:Ex-0)
Neighbor: 0/1
  MAC Address= f0-1f-af-e7-c8-fe
  System Identifier=0xffff,f0-1f-af-e7-c8-fe
  Port Identifier=0xff,0x1
  Operational key=17
  LACP_Activity=active
  LACP_Timeout=short Timeout (1s)  Synchronization=IN_SYNC
  Collecting=true
  Distributing=true
Partner Admin State=(Ac-0:To-1:Ag-0:Sy-0:Co-0:Di-0:De-0:Ex-0)
Partner Oper State=(Ac-1:To-1:Ag-1:Sy-1:Co-1:Di-1:De-0:Ex-0)

I am wondering what impact this would cause if I go ahead with the upgrade? I am guessing that this port will drop out of the VPC/port-channel that would cause a few packet losses, but should resume quickly over the other links in the port-channel? The port-channels are either dual-connected to two separate Nexus chassis, or to two FEX each single-homed to each Nexus chassis.

 

Thanks,

Difan

0 REPLIES 0
Content for Community-Ad