From: Dang Quang Minh (minhdq@xxxxxxxxxxxxx)
Date: Fri Jul 19 2002 - 05:52:11 GMT-3
Hi,
tk#sh ver
Cisco Internetwork Operating System Software
IOS (tm) C2600 Software (C2600-DS-M), Version 12.0(5)T1, RELEASE
SOFTWARE (fc1)
Copyright (c) 1986-1999 by cisco Systems, Inc.
Compiled Tue 17-Aug-99 13:45 by cmong
Image text-base: 0x80008088, data-base: 0x80C7ED64
ROM: System Bootstrap, Version 12.1(3r)T2, RELEASE SOFTWARE (fc1)
trunking uptime is 4 hours, 40 minutes
System returned to ROM by power-on at 23:40:18 UTC Fri Mar 15 2002
System image file is "flash:c2600-ds-mz.120-5.T1.bin"
cisco 2620 (MPC860) processor (revision 0x600) with 26624K/6144K bytes
of memory.
Processor board ID JAD05270GN7 (828196575)
M860 processor: part number 0, mask 49
Bridging software.
X.25 software, Version 3.0.0.
1 FastEthernet/IEEE 802.3 interface(s)
1 Serial network interface(s)
32K bytes of non-volatile configuration memory.
16384K bytes of processor board System flash (Read/Write)
Configuration register is 0x2102
Regards
Minh
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
\mit A~kan (TK-Network Gvz|mleri)
Sent: Wednesday, July 17, 2002 3:39 PM
To: 'Lekan Magbagbeola'
Cc: Ccie (E-mail)
Subject: RE: bridging on a trunk
you can try this on your lab,
it is not working at fastethernet, i tried with different 3 versions.
if your config work, please send your IOS version to me.
-----Original Message-----
From: Lekan Magbagbeola [mailto:lekkyl@hotmail.com]
Sent: Wednesday, July 17, 2002 11:25
To: umit.askan@probil.com.tr
Cc: ccielab@groupstudy.com
Subject: RE: bridging on a trunk
Umit,
I'm almost sure that your interface is not a FasEthernet interface,
because I don't see why the suggested solutions would not work. This is
evident from your posted config. The solutions I suggested would work on
fastethernet interfaces only. Can you confirm this?
Per the Ip issue, your BVI does not need an IP address if you only want
to bridge IP traffic between the VLANs, but make sure the sub-interfaces
are in the same bridge group and that the vlan# in the "encapsulation
isl vlan#" corresponds to the VLANs that you already created on your
switch.
Lekan
>From: \mit A~kan (TK-Network Gvz|mleri)
>To: 'Lekan Magbagbeola'
>CC: "Ccie (E-mail)"
>Subject: RE: bridging on a trunk
>Date: Wed, 17 Jul 2002 11:16:39 +0300
>
>ip is only for the otherside players who is coming with routing to bvi,
>beidging plays in bvi between subinterfaces
>but i tried your suggestiond before, nothing changed.
>
>-----Original Message-----
>From: Lekan Magbagbeola [mailto:lekkyl@hotmail.com]
>Sent: Wednesday, July 17, 2002 10:57
>To: umit.askan@probil.com.tr
>Cc: ccielab@groupstudy.com
>Subject: RE: bridging on a trunk
>
>
>
>First Observation, isl works on Fastethernet interfaces i.e 100MB link.
>Your posted config below indicates a 10MB interface. You might want to
>double-check this again.
>
>Secondly, since all you were trying to do is to bridge traffic between
>your VLANs, you need not assign an IP Address to the BVI interface.
>Remember that when "irb" is configured, it bridges all traffic by
>default, you might want to remove "bridge 1 route ip ". Again, I assume
>that you just wanted to bridge your traffic abetween the VLANs and not
>route.
>
>Check the port status on the switch to make sure that it is in
>"connected state" and negoatiated 100 MG. As trivial as they sound,
>these might be the cause of your headache.
>
>Does this info helps?
>
>Lekan
>
>
>
>
> >From: \mit A~kan (TK-Network Gvz|mleri)
> >To: 'Lekan Magbagbeola'
> >CC: "Ccie (E-mail)"
> >Subject: RE: bridging on a trunk
> >Date: Wed, 17 Jul 2002 10:47:50 +0300
> >
> >Hi,
> >I tried that. it is working with two ethernet interfaces, but not at
> >suninterfaces. look ...
> >
> >bridge irb
> >bridge 1 protocol ieee
> >bridge 1 route ip ------------- for bvi to outside ----------------
> >
> >int eth 0.1
> > encapsulation isl 10
> > bridge-group 1
> >int eth 0.2
> > encapsulation isl 20
> > bridge-group 1
> >int bvi 1
> > ip add 1.1.1.1 255.255.255.0
> >
> >think
> >ip address of router 1 on vlan 10 ------ 1.1.1.2 /24
> >ip address of router 2 on vlan 20 ------ 1.1.1.3 /24
> >
> >1.1.1.1 can go 1.1.1.2 and 1.1.1.3 but 1.1.1.2 can't to 1.1.1.3.....
> >otherside routers who is coming to 1.1.1.1 can go to the .2 and .3
> >
> >-----Original Message-----
> >From: Lekan Magbagbeola [mailto:lekkyl@hotmail.com]
> >Sent: Wednesday, July 17, 2002 10:15
> >To: umit.askan@probil.com.tr; ccielab@groupstudy.com
> >Subject: Re: bridging on a trunk
> >
> >
> >
> >Umit,
> >
> >Using "irb" should do the magic. If your router interface is a
> >fastethernet interface, create a subinterface for each VLAN by using
> >"encapsulation isl >bridge group. Configure irb, depending on what
>other things you are
> >trying to do, you do not necessarily have to assign an IP address to
>the
> >BVI interface. Try this, it should work. If you still have problem,
how
>
> >about pasting your configs online here.
> >
> >Lekan
> >
> >
> >
> >
> >
> > >From: \mit A~kan (TK-Network Gvz|mleri)
> > >Reply-To: \mit A~kan (TK-Network Gvz|mleri)
> > >To: "Ccie (E-mail)"
> > >Subject: bridging on a trunk
> > >Date: Wed, 17 Jul 2002 09:35:09 +0300
> > >
> > >Hi all,
> > >
> > >I have got a question about bridging. if you have a router whish
has
> > >only one ethernet interface and you must bridge between two
different
>
> > >vlans which is coming from that trunk, how can you run it ? I tried
a
>
> > >lot, but it is not working on subinterfaces. maybe it is a bug or
it
>is
> >
> > >not supported.
> > >
> > >Best Regards
> > >umit
> > >
> > >Umit Askan
> > >Consulting Network Engineer
> > >CCNP, CCDP, CCNP-Security, CCNP-Voice Access
> > >
> > > > Probil Bilgi Islem Destek ve Danismanlik San. ve Tic. A.S.
> > >Eski Buyukdere Caddesi Dilaver Sokak No.4
> > >Otosanayi 4. Levent 80660 Istanbul
> > >
> > >Tel: +90 (212) 317 61 00 (219)
> > >Direkt : +90 (212) 317 62 19
> > >Faks: +90 (212) 325 55 15
> > >E-Mail: umit.askan@probil.com.tr
> > >Web: www.probil.com.tr
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