From: Jay Hennigan (jay@xxxxxxxx)
Date: Mon Oct 09 2000 - 14:08:40 GMT-3
On Sun, 8 Oct 2000, Roy Grego wrote:
> Hi Guys,
>
> I am still having trouble getting my switch to route
> between vlans. I have a 2900XL with Enterprise code &
> SA6 IOS.
>
> My switch config is:
> interface FastEthernet0/1
> switchport mode multi
> switchport multi vlan add 20 30
>
> (There is no switchport mode trunk command available)
If there isn't a trunk mode available, then it sounds like you don't
have an Enterprise edition. There was a brief time during the introduction
of the 2900XL switches when Cisco produced a switch with a different
chassis (physically deeper than the current production) that only had
4MB of memory onboard.
If these can be upgraded to a true enterprise model that will support
trunking, the procedure and the image is different than that used on the
current production switches. Does "sho ver" display 8 MB of memory or
4 MB. If 4, you've got one of the early switches.
Try here:
http://www.cisco.com/kobayashi/sw-center/switching/cat2900XL-planner.shtml
(May need CCO)
You'll need trunk mode on the switch for this to work with ISL.
> Router Config is:
> Interface FastEthernet 0/0
> no ip address
> full-duplex
>
> Interface FastEthernet 0/0.20
> encapsulation isl 20
> ip add 10.1.20.1 255.255.255.0
>
> Interface FastEthernet 0/0.30
> encapsulation isl 30
> ip add 10.1.30.1 255.255.255.0
>
> router ospf 1
> network 10.1.20.1 0.0.0.0 area 0
> network 10.1.30.1 0.0.0.0 area 0
>
> When I ping between I get encap failed messages.
>
> I have also tried IRB with bridge groups on the
> sub-interfaces & BVI's.
I haven't been able to find a good "vlan multi" configuration example on
CCO. There's a mention of it here:
http://www.cisco.com/univercd/cc/td/doc/product/lan/c2900xl/29_35xu/scg/kivlan.
htm#xtocid244236
but it doesn't show how the router connected to the Multi-VLAN port is
to be configured. It doesn't appear to work with ISL, or at least I have
not been able to make it work. I thinl "multi" is deprecated in favor of
"trunk", but you need the right hardware and IOS.
-- Jay Hennigan - Network Administration - jay@west.net NetLojix Communications, Inc. NASDAQ: NETX - http://www.netlojix.com/ WestNet: Connecting you to the planet. 805 884-6323
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