I'm faced with having to configure a VMAN for one of our customers between two of our data centers in different cities. The current setup is Edge(460) <-> BD8806 <- metro link -> BD8806 <-> Edge(460)
Reading up in a hurry (of course - does it ever happen otherwise?), I hand off an untagged port to the customer on the edge switch, VMAN/tagged ports on all other switches that are involved, and enable jumbo frames on all ports involved. Does that sound about right?
My questions are:
- Is it a good idea to create one VMAN per customer who wants/needs that, or is there some VMAN "sharing" that should rather be done for all customers that are being carried between the two cities (but aren't supposed to see each other's traffic)?
- Do I also have to enable jumbo frames on the edge switch port (handoff to customer)
- The metro link port that connects the BD8806s between two cities, it can be part of regular VLANs as well as VMANs, correct?
- If a customer device connected to the edge switch doesn't support jumbo frames, will the edge switch just "handle it"?
- is there a disadvantage to transporting standard-size MTU traffic over jumbo-frame enabled ports? Let's say I have a vlan where the access ports are on an edge switch, but I need to route/transport the traffic over the jumbo-enabled metro link port (via vlan, not vman), are there issues?
Sorry for the many questions, and yes, I've cross-read through the documentation, but I haven't found the answers (yet), or I may have read them but missed them as answers due to my lack of fully understanding the concepts.
Thank you all for your help!