05-10-2017 11:09 PM - edited 03-08-2019 10:31 AM
Hello,
I've searched every corner of the internet to find the answer to my question but unfortunately came across none.
Heres the scenario :
We are redesigning and reconfiguring our network as per cisco's Recommended Campus design , which says not to span vlans across access switches. So now ive ended up with 25 vlans from 7 vlans.
Anyways, My question is regarding Management vlans. Can i span them or do i have one management vlan per switch ? Or should i just use vlan 1? We have around 8 access switches. That would mean 8 vlans for management purposes.
Edit: Further clarification - Im following cisco's Loop free design and containing my vlans per switch. How do i implement the management vlan? would it have to be the same on all switches or one mgmt vlan per switch (as spanning is not recommended)
05-10-2017 11:49 PM
Limit your management VLAN till the distribution layer do not span over the dist layer using MLS. I would have used separate vlan other than 1 just my preference as you cannot restrict vlan 1 on trunk ports it is allowed by default.
HTH
Hitesh
05-11-2017 02:19 AM
Im talking about spanning them across the access layer switches. My vlans do not duplicate on every switch. This is to avoid the usage of stp and potential loops. But then what about management vlan ? does that have to be unique per access switch as well ?
05-11-2017 05:16 AM
No it doesn't have to be. you can use the same mgmt vlan all the way to distribution switch.
HTH
Hitesh
05-11-2017 05:58 AM
What about 'not spanning vlans across switches ' ?
Does that not apply to management vlans ?
05-15-2017 04:41 AM
Yes it does.
To clarify once again.
HTH
Hitesh
05-10-2017 11:51 PM
Hello Siddique,
not sure what you mean by spanning VLANs across access switches, can you provide the link ?
Either way, the management VLAN should be the same on all switches. The recommendation though is not to use VLAN 1 (the default VLAN) for management.
05-11-2017 02:19 AM
Hi george, Thanks for your reply. I've edited my question slightly.
heres the link
http://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/Campus/HA_campus_DG/hacampusdg.html
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