03-08-2010 03:04 AM
hi all,
i've got a weird behavior on one of mine ESX hosts.
when i execute a show command related to a specific module / interface the output takes some time and sometimes generates an error.
The ESX host is patched to the latest release and im running N1kv 1(2).
have a look at the commands:
a show mod indicates nothing suspicious:
N1kv# sh mod
Mod Ports Module-Type Model Status
--- ----- -------------------------------- ------------------ ------------
1 0 Virtual Supervisor Module Nexus1000V active *
2 0 Virtual Supervisor Module Nexus1000V ha-standby
3 248 Virtual Ethernet Module NA ok
4 248 Virtual Ethernet Module NA ok
5 248 Virtual Ethernet Module NA ok
Mod Sw Hw
--- --------------- ------
1 4.0(4)SV1(2) 0.0
2 4.0(4)SV1(2) 0.0
3 4.0(4)SV1(2) 1.11
4 4.0(4)SV1(2) 1.10
5 4.0(4)SV1(2) 1.11
Mod MAC-Address(es) Serial-Num
--- -------------------------------------- ----------
1 00-19-07-6c-5a-a8 to 00-19-07-6c-62-a8 NA
2 00-19-07-6c-5a-a8 to 00-19-07-6c-62-a8 NA
3 02-00-0c-00-03-00 to 02-00-0c-00-03-80 NA
4 02-00-0c-00-04-00 to 02-00-0c-00-04-80 NA
5 02-00-0c-00-05-00 to 02-00-0c-00-05-80 NA
Mod Server-IP Server-UUID Server-Name
--- --------------- ------------------------------------ --------------------
1 172.22.210.1 NA NA
2 172.22.210.1 NA NA
3 172.22.210.102 3f766178-0f44-11df-1111-aaaaaaaaa05f vie-esx2.ucs.
4 172.22.210.103 3f766178-0f44-11df-1111-aaaaaaaaa02f vie-esxi1.ucs.
5 172.22.210.104 3f766178-0f44-11df-1111-aaaaaaaaa03f vie-esxi2.ucs.
when i take a look at the interfaces with show int x/x for the eth / po interfaces i get an error :
N1kv# sh int po 1
Error sending opc 9004 to sap 800 on node 0x302 for ifidx 16000000 (err=0x6e)
Unable to get sf stat for port channel port-channel1
port-channel1 is up
Hardware: Port-Channel, address: 0050.565a.bb2f (bia 0050.565a.bb2f)
MTU 1500 bytes, BW 10000000 Kbit, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA
Port mode is trunk
full-duplex, 10 Gb/s
Beacon is turned off
Input flow-control is off, output flow-control is off
Switchport monitor is off
Members in this channel: Eth3/2
Last clearing of "show interface" counters never
2 interface resets
or
N1kv# sh int eth 3/2
Error sending opc 9004 to sap 800 on node 0x302 for ifidx 1a020100 (err=0x6e)
Ethernet3/2 is up
Hardware: Ethernet, address: 0050.565a.bb2f (bia 0050.565a.bb2f)
MTU 1500 bytes, BW 10000000 Kbit, DLY 10 usec,
reliability 0/255, txload 0/255, rxload 0/255
Encapsulation ARPA
Port mode is trunk
full-duplex, 10 Gb/s
Beacon is turned off
Auto-Negotiation is turned off
Input flow-control is off, output flow-control is off
Auto-mdix is turned on
Switchport monitor is off
1 interface resets
it takes some time till the output is displayed (app 10-15sek).
on the veth side i have the same delay but no error message is displayed.
thats my config of the uplink port-profile
port-profile type ethernet Uplink
vmware port-group
switchport mode trunk
switchport trunk native vlan 210
switchport trunk allowed vlan all
channel-group auto mode on mac-pinning
no shutdown
system vlan 210-213,215-216
state enabled
the ESX host is accessible and traffic also passes the VEM.
i had this issue some weeks ago but a simple reboot of the host did the job - since this is the second time I'll keep the host running.
maybe we can investigate together what might cause this behavior.
BR
Lukas
03-24-2010 07:47 PM
Lukas,
Can you send the output of the following command on VSM?
show svs neighbors
thanks,
Naren
03-30-2010 01:38 AM
hi Naren,
i experienced the issue again ... ( 2 weeks everything was ok)
here's the output of sh svs neighbors
N1kv# sh svs neighbors
Active Domain ID: 1
AIPC Interface MAC: 0050-56ab-783b
Inband Interface MAC: 0050-56ab-2c62
Src MAC Type Domain-id Node-id Last learnt (Sec. ago)
------------------------------------------------------------------------
0050-56ab-416c VSM 1 0201 677183.33
0002-3d40-6502 VEM 1 0302 424038.86
0002-3d40-0105 VEM 1 0402 410030.50
0002-3d40-0104 VEM 1 0502 677143.50
0002-3d40-0105 VEM 1 0602 410030.50
thx lukas
04-01-2010 10:36 AM
Hi Lukas,
The issue is two modules (in your case it is module 6 and module 4) having the same MAC address. All the unicast messages to module 4 will fail.
This has been fixed and the fix will be available in the upcoming release. (April 2010).
N1kv# sh svs neighbors
Active Domain ID: 1
AIPC Interface MAC: 0050-56ab-783b
Inband Interface MAC: 0050-56ab-2c62
Src MAC Type Domain-id Node-id Last learnt (Sec. ago)
------------------------------------------------------------------------
0050-56ab-416c VSM 1 0201 677183.33
0002-3d40-6502 VEM 1 0302 424038.86
0002-3d40-0105 VEM 1 0402 410030.50
0002-3d40-0104 VEM 1 0502 677143.50
0002-3d40-0105 VEM 1 0602 410030.50
The work around is, on module 4 run the following commands:
vem stop
vem start
thanks,
Naren
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