Kenny, The 3550 series supports layer 3 out of the box. So the ports can be configured like router ports (with an address on each interface), with each port in it's own b'cast domain. Alternately, the ports can be configured "normally" e.g. all in the same b'cast domain. You can also do intervlan routing by creating virtual interfaces, similar to an MSFC. These switches are very flexible in their Config (and run traditional 29xx/35xx Switch IOS, rather than the oddball IOS that the 2948G-L3 ran). As far as why port one is showing "no switchport", you stated that the gig slot interfaces were 0/12 and 0/13 correct? That would give you 13 ports rather than 12. Perhaps GIG 0/1 represents the controller for the RJ-45 ports and not a physical port? I've seen this sort of thing before (think catalyst 4000 Layer 3 engine). Hope this helps.
Chris Supino CCNP, CCDP, MCSE, CNA, ASE Senior Network Design Engineer -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of Kenny Smith Sent: Monday, May 13, 2002 4:24 AM To: [EMAIL PROTECTED] Subject: enquiry on Cisco 3550 switch [7:44009] Hi.. We just bought a cisco 3550 switch and it has 2 gigabyte fiber ports 12, 13 and 10 gigabyte fastethernet ports 1-10. But why they are all shown to be the same for eg interface GigabitEthernet0/1-12 in the config. And What kind of cable should I connected to port 1-10? Cat5 or Cat6? If we connected via Cat5 it means the speed is 1000Mbit?? I also feel strange that why the config shown as no ip address in all the interface, I thought we can only configure IP for VLAN in switches not interface? What is means by no switchport?? hostname Switch ! enable secret 5 $1$ej9.$DMUvAUnZOAmvmgqBEzIxE0 ! interface GigabitEthernet0/1 no switchport no ip address ! interface GigabitEthernet0/2 no ip address ! interface GigabitEthernet0/3 no ip address ! interface GigabitEthernet0/4 no ip address ! interface GigabitEthernet0/5 no ip address ! interface GigabitEthernet0/6 no ip address ! interface GigabitEthernet0/7 no ip address ! interface GigabitEthernet0/8 no ip address ! interface GigabitEthernet0/9 no ip address ! interface GigabitEthernet0/10 no ip address ! interface GigabitEthernet0/11 no ip address ! interface GigabitEthernet0/12 no ip address ...! interface VLAN1 ip address 172.20.137.50 255.255.255.0 no ip directed-broadcast ip nat outside _________________________________________________________________ Chat with friends online, try MSN Messenger: http://messenger.msn.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=44014&t=44009 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]

