Buy or Renew
Buy or Renew
cancel
Turn on suggestions
Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.
Showing results for 
Search instead for 
Did you mean: 
cancel
Start a conversation

Who Me Too'd this topic

SVI line up / protocol down using trunks

anaxagoras
Level 1
Level 1

‎02-08-2019 05:26 PM - edited ‎03-08-2019 05:17 PM

switch is a 3750x running ipbase Version 15.2(4)E7

 

I'm having the classic problem with line up, protocol down on every SVI except vlan 1.  I'm a total newb to managed networking gear.

 

Now this is a test lab, All active ports are trunked.  i have 2 esxi servers, a couple of ubiquiti AP's that also support vlan tagging, and a router.  Currently we're in "router on a stick" mode which i'd like to change to layer 3 routing for performance. 

 

So right now i'm just going to work with vlan 300.

 

Now as i understand with autostate:

The router VLAN interfaces have to fulfill the following general conditions to be up/up:

  • VLAN exists and is in active status on the switch VLAN database.

    • show vlan
      300 VLAN300-SecureWifi active

  • VLAN interface exists on the router and is not administratively down.

    • show interfaces vlan 300
      Vlan300 is up, line protocol is down

 

  • At least one L2 (access port or trunk) port exists and has a link up on this VLAN. The latest implementation of the autostate feature allows synchronization to Spanning-Tree Protocol (STP) port status.

    • I have multiple trunks that are active and carry this vlan, and i can ping from host to host

 

  • At least one L2 (access port or trunk) port is in spanning-tree forwarding state on the VLAN.

    • c3750x#show spanning-tree vlan 300

      VLAN0300
      Spanning tree enabled protocol ieee
      Root ID Priority 33068
      Address 6073.5c21.0780
      This bridge is the root
      Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec

      Bridge ID Priority 33068 (priority 32768 sys-id-ext 300)
      Address 6073.5c21.0780
      Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
      Aging Time 300 sec

      Interface Role Sts Cost Prio.Nbr Type
      ------------------- ---- --- --------- -------- --------------------------------
      Gi1/0/1 Desg FWD 4 128.1 P2p
      Gi1/0/11 Desg FWD 4 128.11 P2p
      Gi1/0/29 Desg FWD 4 128.29 P2p
      Gi1/0/33 Desg FWD 4 128.33 P2p
      Gi1/0/48 Desg FWD 4 128.48 P2p

 

So what the heck am i doing wrong because as far as i can tell i meet all the paramaters?  I have also tried issuing shut/no shut to the vlan interface with no results.

 

2 people had this problem
Labels:
0 Helpful
Who Me Too'd this topic