Creating a trunk to Router Kills Connectivity

Hi All,
have set up 2 routers/2 switches. SW1(3500-192.168.168.2) connects to R1(2600-192.168.168.1) via network 192.168.168.0 and R1(192.168.169.2) connects to R2(2600-192.168.169.1) via network 192.168.169.0. SW2(3500-192.168.167.2) is connected to R2(192.168.167.1) via network 192.168.167.0. All were pingable and all were telnetable after adding ip host info. I have set SW2 as vtp client and SW1 as server and both are in the status vtp domain. I then created a trunk on fasteth0/12 on SW1 which has a straight cable running to fasteth0/1 on R1. After doing so, I can't ping R1 or ping SW1 from R1. What have I not done right..? Cheers.
coolboarderguy...

Hi All,
thanx. I knew I was close. May I ask, either, what parameters did you use in google to get this, or where on this site did you access/find this..? Cheers.
coolboarderguy...
Tom#conf term
Enter configuration commands, one per line. End with CNTL/Z.
Tom(config)#int fasteth0/1.1
Tom(config-subif)#encapsulation isl 1
^
% Invalid input detected at '^' marker.
Tom(config-subif)#?
Interface configuration commands:
arp Set arp type (arpa, probe, snap) or timeout
backup Modify backup parameters
bandwidth Set bandwidth informational parameter
bridge-group Transparent bridging interface parameters
carrier-delay Specify delay for interface transitions
cdp CDP interface subcommands
default Set a command to its defaults
delay Specify interface throughput delay
description Interface specific description
exit Exit from interface configuration mode
ip Interface Internet Protocol config commands
llc2 LLC2 Interface Subcommands
mtu Set the interface Maximum Transmission Unit (MTU)
netbios Use a defined NETBIOS access list or enable name-caching
no Negate a command or set its defaults
ntp Configure NTP
rate-limit Rate Limit
service-policy Configure QoS Service Policy
shutdown Shutdown the selected interface
snapshot Configure snapshot support on the interface
standby Hot standby interface subcommands
timeout Define timeout values for this interface
traffic-shape Enable Traffic Shaping on an Interface or Sub-Interface
What am I doing wrong here.? Cheers, again.
Tom#sh ver
04:33:48: %SYS-5-CONFIG_I: Configured from console by console
Cisco Internetwork Operating System Software
IOS (tm) C2600 Software (C2600-I-M), Version 12.0(5)T1, RELEASE SOFTWARE (fc1)
Copyright (c) 1986-1999 by cisco Systems, Inc.
Compiled Tue 17-Aug-99 13:57 by cmong
Image text-base: 0x80008088, data-base: 0x8072C5D4
ROM: System Bootstrap, Version 12.1(3r)T2, RELEASE SOFTWARE (fc1)
Tom uptime is 4 hours, 33 minutes
System returned to ROM by power-on
System image file is "flash:c2600-i-mz.120-5.T1.bin"
cisco 2621 (MPC860) processor (revision 0x600) with 26624K/6144K bytes of memory.
Processor board ID JAD05350GL0 (1693552103)
M860 processor: part number 0, mask 49
Bridging software.
X.25 software, Version 3.0.0.
2 FastEthernet/IEEE 802.3 interface(s)
1 Serial network interface(s)
32K bytes of non-volatile configuration memory.
8192K bytes of processor board System flash (Read/Write)
Configuration register is 0x2102

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