vlan interface can not be up in Nexus7000

[eigrpy]

Hi I notice one vlan interface is administrator shutdown. When I issued no shutdown, it has not any effect on this. What reason can cause it ?  Please see it below.  Thank you. 

C7009-01# sh run int vlan 100

interface Vlan100
  no ip redirects
  ip address 172.33.10.2/24
  ip router eigrp 100
  ip passive-interface eigrp 100
  hsrp version 2
  hsrp 100
    authentication xxx
    preempt 
    priority 110


C7009-02(config-if)# sh int status | i Vlan100
Vlan100        Core Network MGMT  down      routed    auto    auto    --

 

C7009-02(config-if)#sh ip int bri

Vlan100               172.33.10.2     protocol-down/link-down/admin-down

[visitor68]

Is there at least one device in VLAN 100 that is 'up,up'? How about a trunk port that carries that VLAN?

[eigrpy]

Thank you for your reply. The vlan 100 used to work before. but we just found its hsrp ip address disappear. When I tried to add the ip address, I could not add it because the error message said the ip address is used by another vlan50. When I checked the vlan 50, vlan50 does not have the same ip address with vlan 100. It is strange. 

Since we cannot add the ip address to vlan100, we use another ip address for the vlan. Though I can add the ip address, the vlan100 is administrative down and cannot be up even if we issue no shutdown. Later we added the ip address in another device, now all can work well. but we still do not know what was wrong with that. 

[Steve Fuller]

Hi,

What does show interface vlan 100 show? If an interface is not operational there's usually a reason given on the first line indicating the error. For example:

n7k-1# sh int vlan 99
Vlan99 is down (VLAN does not exist), line protocol is down, autostate enabled
[snip]

Regards

[InayathUlla Sharieff]

Showipospf,

As updated in other discussion there are only 2 possibilities:0

1- vlan @ layer 2 is not created.

2- Atleast one interface must be active(up/up state) for that particular vlan.

Example:

conf t

vlan 100

int f0/0 --- connecting to my server and in up state.

no shut

int vlan 100

ip address x.x.x.x x.x.x.x

no shut

show int vlan 100

up up.

HTH

Regards

Inayath