Re: ISL on a 2900XL with SA6 Enterprise code

From: Arthur Davis (senzaart@xxxxxxx)
Date: Mon Oct 09 2000 - 10:18:09 GMT-3

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Check your encapsulation with:

show interface fa0/1 switchport

and make sure it is ISL. If not, change it with the
switchport trunk encapsulation command.

Roy Grego <ccsi100@yahoo.com> 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)

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.

Thanks,
ROY

Arthur Davis
Network Engineer
Altra Energy Technologies

• Next message: Michael Bausenwein: "Re: LAT help"
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• Maybe in reply to: Roy Grego: "ISL on a 2900XL with SA6 Enterprise code"
• Next in thread: Jay Hennigan: "Re: ISL on a 2900XL with SA6 Enterprise code"
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