Barry, You can enable a trunk on the 3548, and create subinterfaces on the 3550 at site A. I don't know the exact configuration details about a 3550, but it should be something like:
interface gigabitethernet 0/2 no switchport ! interface gigabitethernet 0/2.10 encapsulation dot1q 10 -----Original Message----- > From: Barry Warrick [mailto:nobody@;groupstudy.com] > Sent: Monday, November 11, 2002 11:23 PM > To: [EMAIL PROTECTED] > Subject: please help with vlan scenario [7:57245] > > > I have Site A which acts as a host for incoming fiber connections from > Site's B,C, and D. All 4 sites are on different subnets. At Site A a > Catalyst 3550G with 12 available fiber GBIC connections is what the 3 > incoming sites B,C, and D connect to on GBIC interfaces 1,2, and 3, > respectively.. The 3550G also has two Ethernet ports on it, > one which has a > crossover to a Catalyst 3548 switch, which feeds the local > LAN users at Site > A itself. > > Interface GBIC 4 on the 3550G has a fiber link connecting to > Site E, which > is then routed over ATM. So basically the 3550 at Site A > routes traffic > between itself and the B,C, and D sites and over to Site E. Site E is > actually our core router site (Cisco 3540) but Site A was > chosen to hosts > the other 3 sites (B,C,and D) due to logistics. > > Now what I need to do back at Site A is segment the local LAN > on the 3548 > switch into two vlans. Both vlans need to pass traffic across > the network. > Remember one port on the 3548 has a crossover to the 3550G > switch. The 3550G > is not set up with vlans. If I break the ports on the 3548 to > the vlan's I > want, I assume I set the crossover port to be a trunk? And if > so, do I need > to setup the other end of the crossover on the 3550 with any vlan's or > trunking??? No other subnets will be broken into vlan's so I > want to make > sure any change I may have to make on the 3550 to support the > local vlans on > the 3548 do not hinder traffic flow to and from the other > sites interfaces > on the 3550. Am I over complicating this setup? I know my description > probably is confusing. I guess in simple terms I just need to > make sure how > I set up vlans on the local Site A without affecting the > other sites that > Site A supports? Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=57279&t=57245 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
