Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

New Member

VLANs Translation

Can we do translate vlans like: (vlan 50, 60, 70) on switch A, to (vlans 5, 6, 7)  on switch B with trunk port connecting each other.

Thanks,

Ali               

Everyone's tags (2)
3 REPLIES
Purple

VLANs Translation

  If you mean vlans 50,60,70 with a certain subnet and the same subnets on a different switch with different  vlan numbers then the answer is no ,  there is no way to trunk them if they are using different vlan numbers.

New Member

Re: VLANs Translation

Let me explain our case; we have a mobile site that connects to our base station through (trunk) wireless multi direction antenna, and we have four base stations each with its own routed vlan's setup.

What we are doing currently is to reconfigure the mobile switch whenever this site move to a location close to one of our base stations, and I am thinking for a way to automate this by translation or any other ways.

Thanks,

Ali

VIP Purple

Re: VLANs Translation

The Metro-Ethernet-Switches like the ME3400 are capable of VLAN Translations (it's named vlan mapping there):

http://www.cisco.com/en/US/partner/docs/switches/metro/me3400e/software/release/12.2_58_ex/configuration/guide/swtunnel.html#wp1059479

But I'm not aware of this feature in regular switches.

You could implement it "the really dirty way". For that to work you need a switch with per-VLAN-MAC-Address-Tables:

int gig 1/0/1

description TRUNK TO VLAN-DOMAIN-5,6,7

switchport mode trunk

switchport trunk allowed add 5-7

int gig 1/0/2

description TRUNK TO VLAN-DOMAIN-50,60,70

switchport mode trunk

switchport trunk allowed add 50,60,70

!

int gig 1/0/11

desciption CABLE TO gig 1/0/12

switchport mode access

switchport access vlan 5

no cdp enable

int gig 1/0/12

desciption CABLE TO gig 1/0/11

switchport mode access

switchport access vlan 50

no cdp enable

!

int gig 1/0/13

desciption CABLE TO gig 1/0/14

switchport mode access

switchport access vlan 6

no cdp enable

int gig 1/0/14

desciption CABLE TO gig 1/0/13

switchport mode access

switchport access vlan 60

no cdp enable

!

int gig 1/0/15

desciption CABLE TO gig 1/0/16

switchport mode access

switchport access vlan 7

no cdp enable

int gig 1/0/16

desciption CABLE TO gig 1/0/15

switchport mode access

switchport access vlan 70

no cdp enable


--
Don't stop after you've improved your network! Improve the world by lending money to the working poor: http://www.kiva.org/invitedby/karsteni
2028
Views
0
Helpful
3
Replies