Cisco Nexus 1000V Troubleshooting Manual page 97

Chapter 7 VSM and VEM Modules
S e n d d o c u m e n t c o m m e n t s t o n e x u s 1 k - d o c f e e d b a c k @ c i s c o . c o m .
DVS Name
n1000v
Use the following commands to restore connectivity that is lost due to an incorrect MTU value on an
Step 2
uplink:
vemcmd show port port-LTL-number
vemcmd set mtu value ltl port-LTL-number
Example:
~ # vemcmd show port 48
LTL
. . .
17
~# vemcmd set mtu 9000 ltl 17
Note
Use the following command to verify that the domain ID, control VLANs, and packet VLANs are
Step 3
configured correctly on the host.
vemcmd show card
Example:
~ # vemcmd show card
Card UUID type
Card name: sfish-srvr-1
Switch name: n1000v
Switch alias: DvsPortset-0
Switch uuid: 56 e0 36 50 91 1c 32 7a-e9 9f 31 59 88 0c 7f 76
Card domain: 1024
Card slot: 4
VEM Control (Control VLAN) MAC: 00:02:3d:14:00:03
VEM Packet (Inband) MAC: 00:02:3d:24:00:03
VEM Control Agent (DPA) MAC: 00:02:3d:44:00:03
VEM SPAN MAC: 00:02:3d:34:00:03
Management IP address: 172.23.232.102
Max physical ports: 32
Max virtual ports: 216
Card control VLAN: 3002
Card packet VLAN: 3003
Processor Cores: 4
Processor Sockets: 2
Physical Memory: 4290351104
Step 4 Use the following command to verify that the ports of the host added to the DVS are listed, and that the
ports are correctly configured as access or trunk on the host.
vemcmd show port
Example:
~ # vemcmd show port
LTL
8
9
10
11
12
13
OL-28795-01
Num Ports Used Ports
256 9
IfIndex Vlan Bndl
1a030100 1 T 304
Use these vemcmds only as a recovery measure and then update the MTU value in the port
profile configuration for system uplinks or in the interface configuration for non-system uplinks.
2: 58f8afd7-e1e3-3c51-85e2-6e6f2819a7b8
Processors: 4
IfIndex Vlan Bndl
0 3969 0
0 3969 0
0 3002 0
0 3968 0
0 3003 0
0 1 0
Configured Ports
256
SG_ID Pinned_SGID Type
1 32 PHYS
SG_ID Pinned_SGID Type
2 2 VIRT
2 2 VIRT
2 2 VIRT
2 2 VIRT
2 2 VIRT
2 2 VIRT
Cisco Nexus 1000V Troubleshooting Guide, Release 4.2(1)SV2(2.1)
Problems with the VSM
Uplinks
vmnic1 VEM Agent is running
Admin State CBL Mode Name
UP UP 1 Trunk vmnic1
Admin State CBL Mode
UP UP 1 Access l20
UP UP 1 Access l21
UP UP 1 Access l22
UP UP 1 Access l23
UP UP 1 Access l24
UP UP 0 Access l25
Name
7-15