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Not able to add vlan (SVI) on a 6500

aretsu
Level 1
Level 1

Hello all,

I am having an issue while trying to create a VLAN/SVI interface on my 6500 Metro Ethernet Aggregator.

I am receiving an error message that I cannot create an SVI without having the vlan added on the L2 vlan database, but the issue is that the vlan is already created there:

1. I created the vlan on the database:

CAT_6k_MT#conf t

Enter configuration commands, one per line. End with CNTL/Z.

CAT_6k_MT(config)#vlan 1241

CAT_6k_MT(config-vlan)#name test

CAT_6k_MT(config-vlan)#exit

% Applying VLAN changes may take few minutes. Please wait...

2. Trying to add the SVI interface for that vlan

CAT_6k_MT(config)#int vlan 1241

CAT_6k_MT(config-if)#no shut

CAT_6k_MT(config-if)#

Oct 14 10:11:04.241 CST: %PM-4-SVI_ADD_CORRESPONDING_L2_VLAN: Vlan 1241 must be added to L2 database in order to be used, do <vlan 1241> from config mode.

Oct 14 10:11:04.257 CST: %LINK-3-UPDOWN: Interface Vlan1241, changed state to down

Then I checked the vlan 1241 is created on the database:

CAT_6k_MT#sh vlan id 1241

VLAN Name Status Ports

---- -------------------------------- --------- -------------------------------

1241 VLAN1241 active Po11, Po61

VLAN Type SAID MTU Parent RingNo BridgeNo Stp BrdgMode Trans1 Trans2

---- ----- ---------- ----- ------ ------ -------- ---- -------- ------ ------

1241 enet 101241 1500 - - - - - 0 0

Remote SPAN VLAN

----------------

Disabled

Primary Secondary Type Ports

------- --------- ----------------- ------------------------------------------

CAT_6k_MT#sh run int vlan 1241

Building configuration...

Current configuration : 41 bytes

!

interface Vlan1241

no ip address

end

But when I look at the interface vlan is always down/down:

CAT_6k_MT(config-if)#do sh int vlan 1241

Vlan1241 is down, line protocol is down

Hardware is EtherSVI, address is 0016.9c7b.d7c0 (bia 0016.9c7b.d7c0)

MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,

reliability 255/255, txload 1/255, rxload 1/255

Encapsulation ARPA, loopback not set

Keepalive not supported

ARP type: ARPA, ARP Timeout 04:00:00

Last input never, output never, output hang never

Last clearing of "show interface" counters never

Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0

Queueing strategy: fifo

Any ideas reagrding this?

Thanks for your help!

Alex

17 Replies 17

kschleppenbach
Level 4
Level 4

You need a switch port assigned to that vlan or that vlan allowed on a trunk.

Thanks for your reply.

That vlan is allowed on two trunks, you can see it on the show vlan command attached previously (port-channel 11 and port-channel 61) and both interfaces are up/up.

Regards!

Alex

Lucien Avramov
Level 10
Level 10

You are using a vlan number over 1000.

Make sure you have Spanning-tree extend system-id enabled.

Contrary to what was said earlier, you dont need to assign it to a switchport to add it properly in the db.

Thanks for your response!

I checked the box and it has the command you mentioned:

spanning-tree extend system-id

Now,I tried to create a vlan using other vlan number (vlan 22 - not extended vlan) but I had the same error.

Do you know about any vlan limitation on this box? As a comment I am using VTP version 3.

Regards!

Alex

This is odd.

Can you attach a show-tech?

Sure here it is!

 

 

 

ok so i do see the vlan 22 to be created and active ( show vlans).

Can you try creating another vlan, example vlan 23 and see if it works?

I dont find any bug on this software, it may be a new defect.

How about disabling and re enabling the spanning-tree extend system-id and try again?

jfraasch
Level 3
Level 3

Do you have VLAN Database setup? You still need to put VLAN in VLAN Database to enable virtual interface. From enable can you go to VLAN D and see if it exists there?

Yes, the vlan exists in the vlan database (status active), here it is:

CAT_6k_MT#sh vlan id 1241

VLAN Name Status Ports

---- -------------------------------- --------- -------------------------------

1241 VLAN1241 active Po11, Po61

VLAN Type SAID MTU Parent RingNo BridgeNo Stp BrdgMode Trans1 Trans2

---- ----- ---------- ----- ------ ------ -------- ---- -------- ------ ------

1241 enet 101241 1500 - - - - - 0 0

Remote SPAN VLAN

----------------

Disabled

Primary Secondary Type Ports

------- --------- ----------------- ------------------------------------------

Thanks!

Alex

The issue is that it is not being accepted as a valid L2 VLAN:

Error Message %PM-4-SVI_ADD_CORRESPONDING_L2_VLAN: Vlan [dec] must be added to L2

database in order to be used, do from config mode.

Explanation When a switch virtual interface (SVI) is created, the corresponding Layer 2 VLAN is not automatically created in the Layer 2 database.

Recommended Action Create a Layer 2 VLAN before the switch virtual interface (SVI) is created

But according to what you said, you already created the Layer 2 VLAN before adding the SVI.

Sounds like a bug or what the other gentleman said about there being a duplicate name.

Odd one.

James

Edison Ortiz
Hall of Fame
Hall of Fame

"% Applying VLAN changes may take few minutes. Please wait.."

This is not normal.

Do you have another Vlan with the name 'test'? You can't have duplicate Vlan names, try creating the Vlan again and name it something else or just don't name it at all.

Regards,

Edison

Thanks to all for your responses!

I tried to create a new VLAN and do not name it to avoid a duplicate name, but the behavior is the same. See below:

CAT_6k_MT(config)#vlan 23

CAT_6k_MT(config-vlan)#exit

% Applying VLAN changes may take few minutes. Please wait...

CAT_6k_MT(config)#

CAT_6k_MT(config)#int vlan 23

CAT_6k_MT(config-if)#no shut

CAT_6k_MT(config-if)#

Oct 14 15:34:57.613 CST: %PM-4-SVI_ADD_CORRESPONDING_L2_VLAN: Vlan 23 must be added to L2 database in order to be used, do from config mode.

Oct 14 15:34:57.629 CST: %LINK-3-UPDOWN: Interface Vlan23, changed state to down

CAT_6k_MT#sh vlan id 23

VLAN Name Status Ports

---- -------------------------------- --------- -------------------------------

23 VLAN0023 active Gi1/2, Po11, Po61

VLAN Type SAID MTU Parent RingNo BridgeNo Stp BrdgMode Trans1 Trans2

---- ----- ---------- ----- ------ ------ -------- ---- -------- ------ ------

23 enet 100023 1500 - - - - - 0 0

Remote SPAN VLAN

----------------

Disabled

Primary Secondary Type Ports

------- --------- ----------------- ------------------------------------------

CAT_6k_MT#sh int vlan 23

Vlan23 is down, line protocol is down

Hardware is EtherSVI, address is 0016.9c7b.d7c0 (bia 0016.9c7b.d7c0)

So, I can not make this SVI interface to come up and still getting that error message.

Can it be a bug?

Regards!

Alex

Could be an odd bug I guess. Did you try deleting the VLAN from the VLAN database then re-adding it?

That's all I can think of. Is there anything funny showing in the log when you get this message?

James

It sounds like you have a corrupted Vlan Database. Is this a lab or production environment? Are you running VTP transparent of server/client mode?

Regards

Edison

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