vlan translation - cheat|
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Posted by flamer die.spam@hotmail.com on June 30, 2009, 12:36 am
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This is my setup: Site a: interface GigabitEthernet5/2 switchport switchport trunk encapsulation dot1q switchport trunk native vlan 2500 switchport trunk allowed vlan 444,333 switchport mode trunk site b: interface Gi0/1 switchport trunk encapsulation dot1q switchport trunk native vlan 123 switchport trunk allowed vlan 444,333 switchport mode trunk interface Fa0/1 switchport access vlan 123 switchport mode access what im trying to do, is have a edge port in vlan 123, go out a trunk port (set as native vlan so it should strip its tag) come in on the other port untagged (in native vlan 2500) so it should be tagged as 2500. hence it should be a fairly straight forward one to one vlan translation. site b switch doesnt support system extended vlan ID's and that particular vlan is a must. anyways, on switch A I have 5 mac addresses in that vlan, on switch B, doing show mac-address-table int g0/1 I can't see any mac's from anything other than 444,333 so it doesnt appear to be working. any ideas? Flamer. | |||||||||||||
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Posted by flamer die.spam@hotmail.com on June 30, 2009, 12:38 am
Please log in for more thread options "trunk allow" that vlan on the port that vlan is forwarded on that port. and if I do add it on the port at the same time as its a native vlan im not sure it will still add/strip the dot1q tag. | |||||||||||||
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Posted by brink on July 2, 2009, 4:37 am
Please log in for more thread options On Jun 30, 6:36=A0am, "flamer die.s...@hotmail.com"
..... straight forward one to one vlan translation.... On the 6500s there is a "switchport vlan mapping" command which does just that, and might be usable for your situation. Unfortunately support is dependent on the module port asic and it seems it is not usable on most of the newer hardware. If your hardware does support it : it works per port asic, meaning the mapping will be applied to ALL ports on that asic. Just how many ports that would be is again hardware dependent, but there is an "enable" command per port. I've used this once and it worked just fine, and yes, I've also used external links between two ports. Luck, Frans | |||||||||||||
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