From: Engelhard M. Labiro (engelhard@xxxxxxxxxxxxxx)
Date: Sun Mar 17 2002 - 23:04:04 GMT-3
> What is the right answer ?
> Can u bridge on a
> 1. Poitn to Multipint Frame Interafce yes/No.
> If yes how ?. If no we know the answer.
The answer is no (at least I can`t make it work).
Transparent bridging does not bridge traffic between
spoke to spoke through a hub on multipoint interface,
however it does bridges traffic from hub to spoke and vice versa.
I think Fred Ingham`s post is very good to describe the reason
why it doesn`t bridge.
Does anyone have different results ?
Here is my test environment, Lab 26 Solie`s book.
win98-- lone_rhino---wolf---trashman--win2000
wolf is the hub, lone_rhino & trashman are spokes.
Win98 and Win2000 only has NetBEUI protocol enabled,
and no TCP/IP protocol.
Test 1 , NetBEUI browsing between win98 at the hub and
win2000 at the spoke.
win98---wolf----trashman----win2000
Result:
Both window machines can browse to each other.
"sh bridge" at wolf (note that the counter of RX and TX are
increasing, means that there are NetBEUI traffic`s exchange).
wolf#sh bridge
Total of 300 station blocks, 298 free
Codes: P - permanent, S - self
Bridge Group 1:
Address Action Interface Age RX count TX count
0080.9870.0828 forward Serial0/0.1 0 25 16
0080.4518.0fdd forward Ethernet0/0 0 17 20
The relevant "sho bridge" at trashman
trashman#sh bridge
Total of 300 station blocks, 298 free
Codes: P - permanent, S - self
Bridge Group 1:
Address Action Interface Age RX count TX count
0080.9870.0828 forward Ethernet0/0 0 25 16
0080.4518.0fdd forward Serial0/0 0 17 20
Transparent bride configuration at wolf (FR hub):
!
interface Ethernet0/0
ip address 172.16.55.1 255.255.255.0
bridge-group 1
!
interface Serial0/0
no ip address
encapsulation frame-relay
!
interface Serial0/0.1 multipoint
ip address 172.16.1.1 255.255.255.0
no ip split-horizon eigrp 2001
frame-relay map bridge 131 broadcast
frame-relay map bridge 110 broadcast
frame-relay map ip 172.16.1.5 110 broadcast
frame-relay map ip 172.16.1.6 131 broadcast
bridge-group 1
!
bridge 1 protocol ieee
!
Transparent bridge configuration at trashman (FR spoke):
!
interface Serial0/0
ip address 172.16.1.6 255.255.255.0
encapsulation frame-relay
no fair-queue
frame-relay map bridge 130 broadcast
frame-relay map ip 172.16.1.5 130 broadcast
frame-relay map ip 172.16.1.1 130 broadcast
bridge-group 1
!
interface Ethernet0/0
ip address 172.16.6.1 255.255.255.0
half-duplex
bridge-group 1
!
bridge 1 protocol ieee
!
Test 2, NetBEUI browsing between machines at the spoke.
win98-- lone_rhino---wolf---trashman--win2000
Result : both machines can not browse to each other.
See my other post for the "show bridge" result.
> 2. Point to point frame Inteafce. Yes / No.
>
>
> I guess we can.
>
>
>
> R.
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>
> -----Original Message-----
> From: MADMAN [mailto:dave@interprise.com]
> Sent: Sunday, March 17, 2002 2:56 PM
> To: Rob Rummel
> Cc: 'Engelhard M. Labiro'; ccielab@groupstudy.com
> Subject: Re: Transparent Bridge with FR hub & spoke
>
>
> Well sorta. You can bridge on a point to multipoint frame network.
>
> Dave
>
> Rob Rummel wrote:
>
> > You cannot bridge across a multipoint frame relay link.
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