Network 1 = ATM network(Marconi switches) with only vlan 1 created on all switches including Backbone and access being allocated subnet 140.140.x.x/16, which is flats network.
Network 2 = 2 core 6500, 3 distrbution 4507 and other 3750 as access. Vlans would be defined on access switches and ospf would be runing in whole cisco network and PTP links would be created between access/distribution/core.
Now these two ATM and gigabit Networks would be connected thru gigabit ethernet port which is available on one of bakbone ATM Marconi switch. Now here is as vlan 1 is already there on ATM switches on range 140.140.x.x/16, also vlan 1 is there on one of the 6500 with the same subnet i would be connecting new 6500 with subnet 10.x.x.x with old 6500.
Question is can i have vlan 1 on subnet 140.140.x.x on old network and vlan 1 on the new network(10.x.x.x/24), and these old 6500 and new 6500 would be connected thru a PTP link.
If the Marconi and Catalyst networks are connected via a point-to-point Layer3 link only (no trunking, no SVI), then VLAN1 will not be a problem. The Marconi network will have no knowledge of the Catalyst network vlan configuration, it will just see IP routes.
Make sure you configure the 6509 port connecting to Marconi with 'no switchport'.
These ASX 1000 switches are not L3 capable and marconi and 6509 is connected thru a switch port and bothe the ports are in vlan1 with the same subnet range, as ASX 1000 is a pure L2 ATM switch in my case i can not define L3 PTP links on it.
I would also like to know this answer. The one thing that might be different for me, though I'm not sure, is that my network is connected there serial. So if anyone could answer this question, it would be greatly appreciated! Thanks!
[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...