[j-nsp] vlan tagging, vlan ids, etc.

[David William]

after looking throught the archives of this list (I should have looked a 
little harder before posting) and some great help both publicly and 
privately, I've got it to work.

here is what I did.

I left the juniper side the same except I changed vlan1 to vlan100 and made 
adjustments to the cisco 3524.

I shutdown VLAN1 and set the IP address of the switch on VLAN100, trunked 
the GigabitEthernet port and set the encap to dot1q.  Now everything is 
happy.  If there is a cleaner way to do this, I would love to hear it.  The  
"vlan dot1q tag native" doens't register to IOS C3500XL Software 
(C3500XL-C3H2S-M), Version 12.0(5)WC3b, RELEASE SOFTWARE (fc1)

Thanks again for all the help with this!

David William


>From: <Jack.W.Parks at alltel.com>
>To: <juniper-nsp at puck.nether.net>
>Subject: RE: [j-nsp] vlan tagging, vlan ids, etc.
>Date: Mon, 29 Dec 2003 15:37:44 -0600
>
>Sorry, I hit send too early...
>
>Cisco uses the concept of native vlan.  This is an untagged vlan.  By
>default this is vlan1.  Your configuration on the Juniper M40 shows
>vlan1 as tagged.  Even though you enabled dot1q on the cat3524, vlan1 is
>not tagged so the M40 will discard all the packets from vlan1.  You have
>two options:
>
>1- Use "vlan dot1q tag native" to tag the native vlan, or
>2- Move the native vlan to another vlan id not in use (i.e vlan100)
>
>Jack
>
>-----Original Message-----
>From: juniper-nsp-bounces at puck.nether.net
>[mailto:juniper-nsp-bounces at puck.nether.net] On Behalf Of David William
>Sent: Monday, December 29, 2003 2:41 PM
>To: juniper-nsp at puck.nether.net
>Subject: [j-nsp] vlan tagging, vlan ids, etc.
>
>
>First of all, I don't have much of a juniper background and have been
>staring at the interfaces and class of service book for some time.
>
>I have a Gigabit Ethernet connection between two facilities.  On one
>side I
>have a cisco 3524 switch, on the other, I have a juniper M40 running an
>older version of Junos - 5.2R2.3
>
>On the juniper side, I have a simple setup of the link... root at edge#
>show interfaces ge-3/3/0 unit 0 {
>     family inet {
>         no-redirects;
>         address 10.0.0.1/29;
>     }
>}
>
>I can get across the link to the switch on the other end at 10.0.0.2
>
>now, when I attempt to create subinterfaces I can no longer get to the
>switch on the other end.
>
>root at edge# show interfaces ge-3/3/0
>vlan-tagging;
>unit 0 {
>     vlan-id 1;
>     family inet {
>         no-redirects;
>         address 10.0.0.1/29;
>     }
>unit 1 {
>     vlan-id 2;
>     family inet {
>         no-redirects;
>         address 10.0.1.1/30;
>     }
>unit 2 {
>     vlan-id 3;
>     family inet {
>         no-redirects;
>         address 10.0.2.1/30;
>     }
>}
>
>I'm new to junos and am just unsure of what I am doing wrong.  According
>to
>the documentation this *should* work.
>
>Any glaring problems with what I am doing?  Maybe its lack of sleep from
>the
>holidays that has me misreading this.
>
>Thanks for any help
>
>David William
>
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