> What is necessary for: > "that will work as long as you have authorized the OSA prot on the switch > for VLANs 1, 545, 645 and 745"?
Your network admin needs to do this. Usually each port on a VLAN-capable switch (particularly trunk ports) have a access control list configured in the switch to determine what VLAN-tagged packets they are permitted to pass on that port. For a Cisco device, it'll probably look something like this (if your switch is running Catalyst OS): set port <mod>/<portnum> trunk encapsulation dot1q set port <mod>/<portnum> vlan 1 545 645 745 allow (don't quote me on syntax; I don't have manuals handy here in Munich) The switch admin needs to execute these commands on the switch console and/or add them to the switch configuration file (depending on what model and brand of switch you have). > Where can I find examples of this type of thing? A good book on LAN switching is the Cisco Press "Cisco LAN Switching". Don't be put off by the "CCIE curriculum" statement on the cover, it's very practically oriented. The scenario you're trying to implement is described as part of the discussion on attaching a transparent access switch to a core switch (since VSWITCHes don't do VTP yet, the CP VSWITCH is effectively classified as a transparent switch according to 802.1q). It's not specific to OSAs and VSWITCHes, but if you show that example to your network guys, they're going to understand a lot more about what you're trying to do.
