I believe you have to enable globally first then disable any ports you don't want it on . Vlans 1025-4094 are extended vlans and must be manually cleared off the trunk if you don't want them running across the trunk...
My understanding is that when you enable it "globally" you are really enabling it on all fiber-optic links within the chassis but not on any others; copper links must be individually configured if you want it on them also. (it's a substantially lower probability that a copper link will be or can become unidirectional)
I believe whether you're in VTP transparent mode or not may have some impact on what the default VLAN range is.
[toc:faq]The ProblemOn traditional switches whenever we have a trunk
interface we use the VLAN tag to demultiplex the VLANs. The switch needs
to determine which MAC Address table to look in for a forwarding
decision. To do this we require the switch to do...
[toc:faq]Introduction:Netdr is a tool available on a RSP720, Sup720 or
Sup32 that allows one to capture packets on the RP or SP inband. The
netdr command can be used to capture both Tx and Rx packets in the
software switching path. This is not a substitut...
IntroductionOSPF, being a link-state protocol, allows for every router
in the network to know of every link and OSPF speaker in the entire
network. From this picture each router independently runs the Shortest
Path First (SPF) algorithm to determine the b...