From: johnsheahan@charter.net
Date: Sun Oct 02 2005 - 08:11:56 GMT-3
my guess is that it only supports one type of encapsulation which is dot1q
since you have other options for "native".
you might not be able to create an ISL trunk.
----- Original Message -----
From: "Holmes" <iamholmes@eml.cc>
To: <ccielab@groupstudy.com>
Sent: Sunday, October 02, 2005 6:59 AM
Subject: Simple router-on-a-stick question.
> Hi all -
>
> My 2950 switch is running only a 12.1 Catalyst IOS.
>
> I want to run a simple router-on-a-stick setup, but I can't find
> any way to specify the kind of encapsulation I'm going to use on
> the switch. (I've worked on this for more than 2 hours).
> What am I missing here ?
>
> Switch(config-if)#switchport mode trunk
> Switch(config-if)#switchport tr
> Switch(config-if)#switchport trunk ?
> allowed Set allowed VLAN characteristics when interface is in
> trunking mode
> native Set trunking native characteristics when interface is in
> trunking
> mode
> pruning Set pruning VLAN characteristics when interface is in
> trunking mode
>
> Switch(config-if)#switchport trunk
>
> Don't you normally have a
> Switch(config-if)#switchport trunk encapsulation .. command ?
>
> Surely the IOS I'm using isn't that old. Anyone any idea whats wrong
> here ?
> I don't have access to the Cisco site to download an IOS, so I haven't
> been
> able to determine if its the IOS thats the problem.
>
> Switch#sh ver
> Cisco Internetwork Operating System Software
> IOS (tm) C2950 Software (C2950-I6Q4L2-M), Version 12.1(13)EA1, RELEASE
> SOFTWARE
> (fc1)
> Copyright (c) 1986-2003 by cisco Systems, Inc.
> Compiled Tue 04-Mar-03 02:14 by yenanh
> Image text-base: 0x80010000, data-base: 0x805A8000
>
> ROM: Bootstrap program is CALHOUN boot loader
>
> Switch uptime is 2 hours, 59 minutes
> System returned to ROM by power-on
> System image file is "flash:/c2950-i6q4l2-mz.121-13.EA1.bin"
>
> cisco WS-C2950G-24-EI (RC32300) processor (revis
> 02:59:20: %SYS-5-CONFIG_I: Configured from console by consoleion
> G0) with 20839K bytes of memory.
> Processor board ID FOC0718Y01J
> Last reset from system-reset
> Running Enhanced Image
> 24 FastEthernet/IEEE 802.3 interface(s)
> 2 Gigabit Ethernet/IEEE 802.3 interface(s)
>
> 32K bytes of flash-simulated non-volatile configuration memory.
> Base ethernet MAC Address: 00:0C:CE:D4:DD:C0
>
>
> Thanks for any pointers.
>
>
> --
> Holmes
> iamholmes@eml.cc
>
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