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MLX: adding a ve to vll-local tag translation

 

 

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remco at signet

May 10, 2010, 5:33 AM

Post #1 of 5 (1295 views)
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MLX: adding a ve to vll-local tag translation

Hi,

I'm testing mpls vll-local on an MLX-4 and came to the conclusion that
VLAN tag translation between 2 ports using vll-local works fine, but i
cannot seem to do any local routing anymore by using ve devices. Is this
correct?

The config :

router mpls
vll-local testing123
vlan 4030
tag e 2/1
vlan 4031
tag e 2/2

Now, i CAN add the following :

vlan 4030
router-interface ve 4030
!
interface ve 4030
ip address 10.0.0.1/29
!

But this doesn't seem to do anything.

Is there anyone who can help me with this? Is there a different way to
do this?


--
Kind regards,
Signet bv


Remco Bressers

T 040 - 707 4 907
F 040 - 707 4 909
E rbressers [at] signet
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nsp at rhanssen

May 10, 2010, 7:21 AM

Post #2 of 5 (1274 views)
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Re: MLX: adding a ve to vll-local tag translation [In reply to]

Hi,

in this case vlan 4030 has nothing to do with the vll-local.
Afaik there is no way to configure what you are trying to do except the
"dirty" version with a loop on 2 ports (1 port inside the vlan, the other
configured with the vll-local). But that wastes 2 ports and may cause
other problems.

best regards
Rolf

> Hi,
>
> I'm testing mpls vll-local on an MLX-4 and came to the conclusion that
> VLAN tag translation between 2 ports using vll-local works fine, but i
> cannot seem to do any local routing anymore by using ve devices. Is this
> correct?
>
> The config :
>
> router mpls
> vll-local testing123
> vlan 4030
> tag e 2/1
> vlan 4031
> tag e 2/2
>
> Now, i CAN add the following :
>
> vlan 4030
> router-interface ve 4030
> !
> interface ve 4030
> ip address 10.0.0.1/29
> !
>
> But this doesn't seem to do anything.
>
> Is there anyone who can help me with this? Is there a different way to
> do this?
>
>
> --
> Kind regards,
> Signet bv
>
>
> Remco Bressers
>
> T 040 - 707 4 907
> F 040 - 707 4 909
> E rbressers [at] signet
> _______________________________________________
> foundry-nsp mailing list
> foundry-nsp [at] puck
> http://puck.nether.net/mailman/listinfo/foundry-nsp
>


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tomeks at man

May 10, 2010, 7:27 AM

Post #3 of 5 (1266 views)
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Re: MLX: adding a ve to vll-local tag translation [In reply to]

W dniu 2010-05-10 14:33, Remco Bressers pisze:
> Hi,
>
> I'm testing mpls vll-local on an MLX-4 and came to the conclusion that
> VLAN tag translation between 2 ports using vll-local works fine, but i
> cannot seem to do any local routing anymore by using ve devices. Is this
> correct?
>
> The config :
>
> router mpls
> vll-local testing123
> vlan 4030
> tag e 2/1
> vlan 4031
> tag e 2/2
>
> Now, i CAN add the following :
>
> vlan 4030
> router-interface ve 4030
> !
> interface ve 4030
> ip address 10.0.0.1/29
> !
>
> But this doesn't seem to do anything.
>
> Is there anyone who can help me with this? Is there a different way to
> do this?
>
>
>
I believe this is not possible to attach IP interface to VLL or VPLS
instance. It seems this is hardware (header lookup) limitation. This
example will not work, because there is no binding between VLL(local)
and VLAN. Moreover your VLAN has no interface assigned.


Tomek



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niels=foundry-nsp at bakker

May 10, 2010, 7:43 AM

Post #4 of 5 (1267 views)
Permalink
Re: MLX: adding a ve to vll-local tag translation [In reply to]

* remco [at] signet (Remco Bressers) [Mon 10 May 2010, 16:04 CEST]:
>I'm testing mpls vll-local on an MLX-4 and came to the conclusion
>that VLAN tag translation between 2 ports using vll-local works
>fine, but i cannot seem to do any local routing anymore by using ve
>devices. Is this correct?
>
>The config :
>
>router mpls
> vll-local testing123
> vlan 4030
> tag e 2/1
> vlan 4031
> tag e 2/2
>
>Now, i CAN add the following :
>
>vlan 4030
> router-interface ve 4030
>!
>interface ve 4030
> ip address 10.0.0.1/29
>!
>
>But this doesn't seem to do anything.

That's correct. There are no ports in VLAN 4030 (you can verify this
by doing "sh vlan 4030" and "sh vlan e 2/1" - note that the latter
will say that the port is a member of 0 VLANs).

There is a difference between a "VLAN" and a "L2 VLAN" in Foundry
parlance. I'm not sure which is which, but one is configured with
"conf t; vlan xyz; tagged e x/y; router-interface ve x" and the
other is used only as a number to fill out in the 802.1Q tag under
VPLS or VLL instances.


>Is there anyone who can help me with this? Is there a different way
>to do this?

Not that I'm aware of without running a cable back between two ports.


-- Niels.

--
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basile.bluntschli at gmail

May 10, 2010, 8:01 AM

Post #5 of 5 (1270 views)
Permalink
Re: MLX: adding a ve to vll-local tag translation [In reply to]

Hi Remco

> The config :
>
> router mpls
>  vll-local testing123
>  vlan 4030
>   tag e 2/1
>  vlan 4031
>   tag e 2/2
>
> Now, i CAN add the following :
>
> vlan 4030
>  router-interface ve 4030
> !
> interface ve 4030
>  ip address 10.0.0.1/29
> !
>
The only thing those VLAN's have in common are the numbers. But they
do not know anything from each other. The VLAN tag on a VLL is always
only port significant. Means you can have the same VLAN on as many
VLL's as you want and still no traffic is leaking. Useful if you have
different customers with the same VLAN tag.

There is a good description in the config guide, somewhere... :-)

Kind regards
Basile

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