I recall in CatOS, vlan 1 has to be up for management purpose, like VTP information will be trasnfered via vlan 1 between switches. Is this same for IOS switch? The reason I am asking this is because that one of design from our customer is they shutdown the vlan1 on all the switches. I am wondering that all the VTP information and other VLAN management information won't be able to send vtp client switches.Thanks
Feel free to disable VLAN 1! VTP information is propogated over your trunk ports, not vlan 1. As long as you have ISL or dot1q trunks configured to your client (vtp) switches (as well as VTP domain passwd etc), your VTP info will propogate.
BUT be careful while disabling VLAN1. There were several bugs regarding the feature described above in the past. I remember one bug on Cat3550 which caused CDP and VTP not beeing sent while VLAN1 was disabled.
[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...