Danny, Sometimes even people who work for Cisco, even SE's who may by CCIE's, make mistakes. The router never lies:
3620(config)#int ethernet 0/0.1 3620(config-subif)#encap ? dot1Q IEEE 802.1Q Virtual LAN sde IEEE 802.10 Virtual LAN - Secure Data Exchange Notice this is an Ethernet, not FastEthernet, and that it does indeed allow 802.1q trunking. ISL, on the other hand, does require FastEthernet. So maybe that is where the confusion lies. Regards, Kent -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Danny Andaluz, CCNP Sent: Friday, March 22, 2002 7:25 PM To: [EMAIL PROTECTED] Subject: Re: ISL Trunking from a h/w's perspective [7:39246] no you can't. I got straight from cisco that they have to be 100 meg full-dux interfaces. ""MADMAN"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Actually on some platforms with the right IOS you can trunk 10 meg ports: > > C3660B(config)#inter e2/0.1 > C3660B(config-subif)#encap dot1 1 > C3660B(config-subif)# > > Dave > > danny wrote: > > > The router's ethernet must be 100 full dux. You configure subinterfaces on > > the ethernet. a trunking protocol must be configured on each sub with the > > corresponding vlan #. The router will route between Vlans. > > > > Hope this helps. > > > > Danny > > ""George Siaw"" wrote in message > > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > > Thanks for all your responses. > > > > > > One last question though. For external router, routing between vlans if > > > I have just one FastEthernet interface on the router can I route between > > > vlans? > > > > > > George. > > > > > > -----Original Message----- > > > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of > > > Scott H. > > > Sent: 23 March 2002 00:53 > > > To: [EMAIL PROTECTED] > > > Subject: Re: ISL Trunking from a h/w's perspective [7:39246] > > > > > > The only time the SC0 interface comes into play is for telnet into the > > > box. > > > If you have any 100 MB ports on your switch, you can run trunking. > > > > > > set trunk (mod/port) on isl > > > > > > If this trunk is running into a router, you need to create the > > > subinterfaces > > > on the router to enable routing between VLANS. > > > > > > int fa1/0.100 > > > ip address (the subnet of the vlan) > > > encap isl (the vlan #) > > > > > > HTH, > > > Scott > > > > > > ""George Siaw"" wrote in message > > > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > > > Do I need an Sc0 port when routing between Vlans? However, there's no > > > > uplink module on neither of my supervisor engines. Would you know a > > > s/w > > > > work around without having to buy the module? > > > > > > > > George. > > > > > > > > -----Original Message----- > > > > From: Larry Letterman [mailto:[EMAIL PROTECTED]] > > > > Sent: 23 March 2002 00:17 > > > > To: George Siaw; [EMAIL PROTECTED] > > > > Subject: RE: ISL Trunking from a h/w's perspective [7:39246] > > > > > > > > You dont have to configure SC0 interface to do isl or dot1q. Its only > > > > needed > > > > for management, telnet etc... > > > > > > > > > > > > Larry Letterman > > > > Cisco Systems > > > > [EMAIL PROTECTED] > > > > > > > > > > > > -----Original Message----- > > > > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of > > > > George Siaw > > > > Sent: Friday, March 22, 2002 3:45 PM > > > > To: [EMAIL PROTECTED] > > > > Subject: ISL Trunking from a h/w's perspective [7:39246] > > > > > > > > > > > > Guys, > > > > > > > > > > > > > > > > Any ideas as how I can configure isl trunking without an Sc0 port on > > > the > > > > supervisor engines? Can I configure on of the ports to assume this > > > > position i.e. Sc0? If so what are the cmds? > > > > > > > > > > > > > > > > Regards, > > > > > > > > George. > > > > > > > > > > > > > > > > Configs as below: > > > > > > > > > > > > > > > > Console> (enable) sh mod 1 > > > > > > > > Mod Module-Name Ports Module-Type Model > > > Serial-Num > > > > Status > > > > > > > > --- ------------------- ----- --------------------- --------- > > > --------- > > > > ------- > > > > > > > > 1 ENGINE-1 0 Supervisor III WS-X5530 > > > 012144234 > > > > ok > > > > > > > > > > > > > > > > Mod MAC-Address(es) Hw Fw Sw > > > > > > > > --- -------------------------------------- ------ ---------- > > > > ----------------- > > > > > > > > 1 00-50-f0-0c-64-00 to 00-50-f0-0c-67-ff 3.0 3.1.2 4.3(1a) > > > > > > > > > > > > > > > > Mod Sub-Type Sub-Model Sub-Serial Sub-Hw > > > > > > > > --- -------- --------- ---------- ------ > > > > > > > > 1 NFFC+ WS-F5531 0012153640 1.0 > > > > > > > > > > > > > > > > Console> (enable) sh mod > > > > > > > > Mod Module-Name Ports Module-Type Model > > > Serial-Num > > > > Status > > > > > > > > --- ------------------- ----- --------------------- --------- > > > --------- > > > > ------- > > > > > > > > 1 ENGINE-1 0 Supervisor III WS-X5530 > > > 012144234 > > > > ok > > > > > > > > 2 ENGINE-2 0 Supervisor III WS-X5530 > > > 010867093 > > > > standby > > > > > > > > 3 CCIE_LAB-0 24 10/100BaseTX Ethernet WS-X5224 > > > 012154555 > > > > ok > > > > > > > > 4 CCIE_LAB-1 24 10/100BaseTX Ethernet WS-X5224 > > > 009616952 > > > > ok > > > > > > > > 5 CCIE_LAB-2 24 10/100BaseTX Ethernet WS-X5224 > > > 016372420 > > > > ok > > > > > > > > > > > > > > > > Mod MAC-Address(es) Hw Fw Sw > > > > > > > > --- -------------------------------------- ------ ---------- > > > > ----------------- > > > > > > > > 1 00-50-f0-0c-64-00 to 00-50-f0-0c-67-ff 3.0 3.1.2 4.3(1a) > > > > > > > > 2 00-50-f0-0c-64-00 to 00-50-f0-0c-67-ff 2.0 3.1.2 4.3(1a) > > > > > > > > 3 00-50-53-c4-42-08 to 00-50-53-c4-42-1f 1.4 3.1(1) 4.3(1a) > > > > > > > > 4 00-10-7b-83-36-d8 to 00-10-7b-83-36-ef 1.4 3.1(1) 4.3(1a) > > > > > > > > 5 00-30-b6-29-95-48 to 00-30-b6-29-95-5f 1.5 3.1(1) 4.3(1a) > > > > > > > > > > > > > > > > Mod Sub-Type Sub-Model Sub-Serial Sub-Hw > > > > > > > > --- -------- --------- ---------- ------ > > > > > > > > 1 NFFC+ WS-F5531 0012153640 1.0 > > > > > > > > 2 NFFC WS-F5521 0010866222 1.1 > > > > > > > > > > > > > > > > Console> (enable) sh ver > > > > > > > > WS-C5505 Software, Version McpSW: 4.3(1a) NmpSW: 4.3(1a) > > > > > > > > Copyright (c) 1995-1998 by Cisco Systems > > > > > > > > NMP S/W compiled on Nov 23 1998, 15:22:34 > > > > > > > > MCP S/W compiled on Nov 23 1998, 15:19:30 > > > > > > > > > > > > > > > > System Bootstrap Version: 3.1.2 > > > > > > > > > > > > > > > > Hardware Version: 1.0 Model: WS-C5505 Serial #: 066526573 > > > > > > > > > > > > > > > > Mod Port Model Serial # Versions > > > > > > > > --- ---- ---------- --------- ---------------------------------------- > > > > > > > > 1 0 WS-X5530 012144234 Hw : 3.0 > > > > > > > > Fw : 3.1.2 > > > > > > > > Fw1: 4.2(1) > > > > > > > > Sw : 4.3(1a) > > > > > > > > 2 0 WS-X5530 010867093 Hw : 2.0 > > > > > > > > Fw : 3.1.2 > > > > > > > > Fw1: 4.2(1) > > > > > > > > Sw : 4.3(1a) > > > > > > > > 3 24 WS-X5224 012154555 Hw : 1.4 > > > > > > > > Fw : 3.1(1) > > > > > > > > Sw : 4.3(1a) > > > > > > > > 4 24 WS-X5224 009616952 Hw : 1.4 > > > > > > > > Fw : 3.1(1) > > > > > > > > Sw : 4.3(1a) > > > > > > > > 5 24 WS-X5224 016372420 Hw : 1.5 > > > > > > > > Fw : 3.1(1) > > > > > > > > Sw : 4.3(1a) > > > > > > > > > > > > > > > > DRAM FLASH NVRAM > > > > > > > > Module Total Used Free Total Used Free Total Used > > > Free > > > > > > > > ------ ------- ------- ------- ------- ------- ------- ----- ----- > > > ----- > > > > > > > > 1 32640K 13381K 19259K 8192K 3984K 4208K 512K 116K > > > 396K > > > > > > > > > > > > > > > > Uptime is 0 day, 0 hour, 13 minutes > > > > _________________________________________________________ > > > > Do You Yahoo!? > > > > Get your free @yahoo.com address at http://mail.yahoo.com > -- > David Madland > CCIE# 2016 > Sr. Network Engineer > Qwest Communications Inc. > 612-664-3367 > [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=39276&t=39246 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
