Re: [vpp-dev] Fwd: :: Setting Mac address on Vlan interface

[Prabhjot Singh Sethi]

Thanks Neale for your time. as a followup i will try following.

- setting MAC address on Physical interface 
- following up with expected configuration on firewall to rule out
strict requirements on source MAC.

Regards,
Prabhjot

- Original Message -
From:
 "Neale Ranns (nranns)" <nra...@cisco.com>

To:
"Prabhjot Singh Sethi" <prabh...@techtrueup.com>
Cc:
"vpp-dev@lists.fd.io" <vpp-dev@lists.fd.io>, "Omer Majeed"
<omer.maj...@rwth-aachen.de>
Sent:
Mon, 4 Dec 2017 12:14:54 +
Subject:
Re: [vpp-dev] Fwd: :: Setting Mac address on Vlan interface

  

Hi Prabhjot,

  

If there is only one link between VPP A and B, regardless of the
number of .1q sub-interfaces, the forward and reverse direction
packets *SHOULD* have the same MAC addresses.

  

You mention ECMP. Is the reverse direction traffic arriving on the
same interface from which it was sent? 

Perhaps you could show a packet trace for the forward and reverse
direction.

  

Regards,

neale

  

  

    

FROM:  Prabhjot Singh Sethi <prabh...@techtrueup.com>
DATE: Monday, 4 December 2017 at 12:53
TO: "Neale Ranns (nranns)" <nra...@cisco.com>,
"prabh...@techtrueup.com" <prabh...@techtrueup.com>
CC: "vpp-dev@lists.fd.io" <vpp-dev@lists.fd.io>, Omer Majeed
<omer.maj...@rwth-aachen.de>
SUBJECT: Re: [vpp-dev] Fwd: :: Setting Mac address on Vlan interface

  

Hi Neale,

 we have the traffic working however the packets looks like 

source 1.1.1.3 (02:00:00:00:00:01) dest 2.2.2.3 (02:00:00:00:00:02)
 however for reverse traffic
 source 2.2.2.3 (02:fe:c9:7a:70:00) dest 1.1.1.3 (02:00:00:00:00:01)

  

use of BVI for this purpose is ruled out as this use case also need
to handle ECMP route with multiple VLAN interfaces

  

Packet  Egressed by VPP needs to be going though some third party
firewall VM eventually, so at this point we are unable to rule out
 strict requirement on source MAC.

 so essentially we were looking at option to set MAC on VLAN
interfaces while correlating it to linux counterpart.

  

so my expectation is there should be a way to have uniformity in
source and dest MAC for forward and reverse traffic

 Regards,
 Prabhjot

 - Original Message -

FROM:

"Neale Ranns (nranns)" <nra...@cisco.com>

   

TO:

"prabh...@techtrueup.com" <prabh...@techtrueup.com>

CC:

"vpp-dev@lists.fd.io" <vpp-dev@lists.fd.io>, "Omer Majeed"
<omer.maj...@rwth-aachen.de>

SENT:

Sat, 2 Dec 2017 08:00:06 +

SUBJECT:

Re: [vpp-dev] Fwd: :: Setting Mac address on Vlan interface

 Hi Prabhjot,

 Your explanation of what you want I think I understand; it’s the
ability to set the src,dst MAC address of a packet as it egresses of
VLAN interface. Where in this case a vlan interface is a 802.1Q
interface and not a BVI*.
 But I don’t understand why you want this. You say “we are not
looking for any additional datapath lookup based on MAC”, in other
words, the RX side does not care what the src,dst MAC addresses are,
so why is it important what the TX side sets? Is it for the benefit of
intervening switches? If so I still don’t understand why  ☹

 What is the issue you are trying to address by setting different
src,dst MAC addresses? Perhaps there are existing means to achieve
this already.

 Regards,
 neale

 *In some vendor’s documentation ‘VLAN’ interfaces, also known
as BVI, SVI or IRB (depending on your preferred vendor, platform or
decade) is what VPP terms an BVI. This is an L3 port attached to a
bridge-domain.

 -Original Message-
 From: "prabh...@techtrueup.com" <prabh...@techtrueup.com>
 Date: Friday, 1 December 2017 at 18:37
 To: "Neale Ranns (nranns)" <nra...@cisco.com>
 Cc: "vpp-dev@lists.fd.io" <vpp-dev@lists.fd.io>, Omer Majeed
<omer.maj...@rwth-aachen.de>
 Subject: Re: [vpp-dev] Fwd: :: Setting Mac address on Vlan interface

 hi Neale,
 we are not looking for any additional datapath lookup based on MAC
here.
 this is related to one of the feature that we are trying to translate

 to VPP. where we need to handle and generate traffic with configure 
 destination and source MAC. we have tried multiple options and were 
 able to handle incoming traffic, but we were having issues sending 
 traffic with specific source MAC particularly with ECMP routes.

 so i only see two ways either we support configurable MAC address on 
 vlan interface
 or have some ability to configure which source MAC to use in the
route 
 configuration

 please let me know if you want to understand the feature in detail.
we 
 can setup a short call for th

Re: [vpp-dev] Fwd: :: Setting Mac address on Vlan interface

[Neale Ranns (nranns)]

Hi Prabhjot,

If there is only one link between VPP A and B, regardless of the number of .1q 
sub-interfaces, the forward and reverse direction packets *should* have the 
same MAC addresses.

You mention ECMP. Is the reverse direction traffic arriving on the same 
interface from which it was sent?
Perhaps you could show a packet trace for the forward and reverse direction.

Regards,
neale



From: Prabhjot Singh Sethi <prabh...@techtrueup.com>
Date: Monday, 4 December 2017 at 12:53
To: "Neale Ranns (nranns)" <nra...@cisco.com>, "prabh...@techtrueup.com" 
<prabh...@techtrueup.com>
Cc: "vpp-dev@lists.fd.io" <vpp-dev@lists.fd.io>, Omer Majeed 
<omer.maj...@rwth-aachen.de>
Subject: Re: [vpp-dev] Fwd: :: Setting Mac address on Vlan interface

Hi Neale,

we have the traffic working however the packets looks like
source 1.1.1.3 (02:00:00:00:00:01) dest 2.2.2.3 (02:00:00:00:00:02)
however for reverse traffic
source 2.2.2.3 (02:fe:c9:7a:70:00) dest 1.1.1.3 (02:00:00:00:00:01)

use of BVI for this purpose is ruled out as this use case also need to handle 
ECMP route with multiple VLAN interfaces

Packet  Egressed by VPP needs to be going though some third party firewall VM 
eventually, so at this point we are unable to rule out
strict requirement on source MAC.

so essentially we were looking at option to set MAC on VLAN interfaces while 
correlating it to linux counterpart.

so my expectation is there should be a way to have uniformity in source and 
dest MAC for forward and reverse traffic

Regards,
Prabhjot

- Original Message -
From:
"Neale Ranns (nranns)" <nra...@cisco.com>

To:
"prabh...@techtrueup.com" <prabh...@techtrueup.com>
Cc:
"vpp-dev@lists.fd.io" <vpp-dev@lists.fd.io>, "Omer Majeed" 
<omer.maj...@rwth-aachen.de>
Sent:
Sat, 2 Dec 2017 08:00:06 +
Subject:
Re: [vpp-dev] Fwd: :: Setting Mac address on Vlan interface


Hi Prabhjot,

Your explanation of what you want I think I understand; it’s the ability to set 
the src,dst MAC address of a packet as it egresses of VLAN interface. Where in 
this case a vlan interface is a 802.1Q interface and not a BVI*.
But I don’t understand why you want this. You say “we are not looking for any 
additional datapath lookup based on MAC”, in other words, the RX side does not 
care what the src,dst MAC addresses are, so why is it important what the TX 
side sets? Is it for the benefit of intervening switches? If so I still don’t 
understand why ☹

What is the issue you are trying to address by setting different src,dst MAC 
addresses? Perhaps there are existing means to achieve this already.

Regards,
neale

*In some vendor’s documentation ‘VLAN’ interfaces, also known as BVI, SVI or 
IRB (depending on your preferred vendor, platform or decade) is what VPP terms 
an BVI. This is an L3 port attached to a bridge-domain.

-Original Message-
From: "prabh...@techtrueup.com" <prabh...@techtrueup.com>
Date: Friday, 1 December 2017 at 18:37
To: "Neale Ranns (nranns)" <nra...@cisco.com>
Cc: "vpp-dev@lists.fd.io" <vpp-dev@lists.fd.io>, Omer Majeed 
<omer.maj...@rwth-aachen.de>
Subject: Re: [vpp-dev] Fwd: :: Setting Mac address on Vlan interface

hi Neale,
we are not looking for any additional datapath lookup based on MAC here.
this is related to one of the feature that we are trying to translate
to VPP. where we need to handle and generate traffic with configure
destination and source MAC. we have tried multiple options and were
able to handle incoming traffic, but we were having issues sending
traffic with specific source MAC particularly with ECMP routes.

so i only see two ways either we support configurable MAC address on
vlan interface
or have some ability to configure which source MAC to use in the route
configuration

please let me know if you want to understand the feature in detail. we
can setup a short call for the same.

Regards,
Prabhjot

Quoting "Neale Ranns (nranns)" <nra...@cisco.com>:

> Hi Prabhjot,
>
> I would say it is possible, but one would need to place the NIC in
> promiscuous mode for an L3 interface, do maybe do MAC to interface
> matching in the data-plane which would cost many cycles. Or an rx
> would you still want to match to input interface based only on the
> VLAN Tag.
>
> I confess I don’t understand why you want such a feature, when the
> VLAN tag identifies the sub-interface. Perhaps you could help me
> understand.
>
> Thanks,
> neale
>
> -Original Message-
> From: "prabh...@techtrueup.com" <prabh...@techtrueup.com>
> Date: Friday, 1 December 2017 at 13:30
> To: Omer Majeed <omer.maj...@rwth-aachen.de>
> Cc: "vpp-dev@lists.fd.io" <vpp-dev@lists.fd.io>, "Neale Ranns
> (nranns)" <nra...@cisco.com>
> Subject: Re: [

Re: [vpp-dev] Fwd: :: Setting Mac address on Vlan interface

[Prabhjot Singh Sethi]

Hi Neale,

we have the traffic working however the packets looks like 

source 1.1.1.3 (02:00:00:00:00:01) dest 2.2.2.3 (02:00:00:00:00:02)
however for reverse traffic
source 2.2.2.3 (02:fe:c9:7a:70:00) dest 1.1.1.3 (02:00:00:00:00:01)

use of BVI for this purpose is ruled out as this use case also need to
handle ECMP route with multiple VLAN interfaces

Packet  Egressed by VPP needs to be going though some third party
firewall VM eventually, so at this point we are unable to rule out
strict requirement on source MAC.

so essentially we were looking at option to set MAC on VLAN interfaces
while correlating it to linux counterpart.

so my expectation is there should be a way to have uniformity in
source and dest MAC for forward and reverse traffic

Regards,
Prabhjot

- Original Message -
From: "Neale Ranns (nranns)" <nra...@cisco.com>
To:"prabh...@techtrueup.com" <prabh...@techtrueup.com>
Cc:"vpp-dev@lists.fd.io" <vpp-dev@lists.fd.io>, "Omer Majeed"
<omer.maj...@rwth-aachen.de>
Sent:Sat, 2 Dec 2017 08:00:06 +
Subject:Re: [vpp-dev] Fwd: :: Setting Mac address on Vlan interface

 Hi Prabhjot,

 Your explanation of what you want I think I understand; it’s the
ability to set the src,dst MAC address of a packet as it egresses of
VLAN interface. Where in this case a vlan interface is a 802.1Q
interface and not a BVI*.
 But I don’t understand why you want this. You say “we are not
looking for any additional datapath lookup based on MAC”, in other
words, the RX side does not care what the src,dst MAC addresses are,
so why is it important what the TX side sets? Is it for the benefit of
intervening switches? If so I still don’t understand why ☹

 What is the issue you are trying to address by setting different
src,dst MAC addresses? Perhaps there are existing means to achieve
this already.

 Regards,
 neale

 *In some vendor’s documentation ‘VLAN’ interfaces, also known
as BVI, SVI or IRB (depending on your preferred vendor, platform or
decade) is what VPP terms an BVI. This is an L3 port attached to a
bridge-domain.

 -Original Message-
 From: "prabh...@techtrueup.com" <prabh...@techtrueup.com>
 Date: Friday, 1 December 2017 at 18:37
 To: "Neale Ranns (nranns)" <nra...@cisco.com>
 Cc: "vpp-dev@lists.fd.io" <vpp-dev@lists.fd.io>, Omer Majeed
<omer.maj...@rwth-aachen.de>
 Subject: Re: [vpp-dev] Fwd: :: Setting Mac address on Vlan interface

 hi Neale,
 we are not looking for any additional datapath lookup based on MAC
here.
 this is related to one of the feature that we are trying to translate

 to VPP. where we need to handle and generate traffic with configure 
 destination and source MAC. we have tried multiple options and were 
 able to handle incoming traffic, but we were having issues sending 
 traffic with specific source MAC particularly with ECMP routes.

 so i only see two ways either we support configurable MAC address on 
 vlan interface
 or have some ability to configure which source MAC to use in the
route 
 configuration

 please let me know if you want to understand the feature in detail.
we 
 can setup a short call for the same.

 Regards,
 Prabhjot

 Quoting "Neale Ranns (nranns)" <nra...@cisco.com>:

 > Hi Prabhjot,
 >
 > I would say it is possible, but one would need to place the NIC in 
 > promiscuous mode for an L3 interface, do maybe do MAC to interface 
 > matching in the data-plane which would cost many cycles. Or an rx 
 > would you still want to match to input interface based only on the 
 > VLAN Tag.
 >
 > I confess I don’t understand why you want such a feature, when
the 
 > VLAN tag identifies the sub-interface. Perhaps you could help me 
 > understand.
 >
 > Thanks,
 > neale
 >
 > -Original Message-
 > From: "prabh...@techtrueup.com" <prabh...@techtrueup.com>
 > Date: Friday, 1 December 2017 at 13:30
 > To: Omer Majeed <omer.maj...@rwth-aachen.de>
 > Cc: "vpp-dev@lists.fd.io" <vpp-dev@lists.fd.io>, "Neale Ranns 
 > (nranns)" <nra...@cisco.com>
 > Subject: Re: [vpp-dev] Fwd: :: Setting Mac address on Vlan
interface
 >
 > hi Neale,
 > we are expecting to be able to handle different MAC addresses for
 > VLAN interfaces. This feature seems to be not available in VPP as
of
 > now.
 >
 > we also tried looking for possible work around, which were dead
ends
 > as of now. Please let us know if we agree to this as something that
 > can be done for VPP, we can work on this and contribute if useful.
 >
 > please share your inputs
 >
 > Regards,
 > Prabhjot
 >
 > Quoting Omer Majeed <omer.maj...@rwth-aachen.de>:
 >
 > > Hi Neale,
 > >
 > > Thanks for the reply.
 > > A physical interface could have multiple Vlan interfaces and I 
 > want 

Re: [vpp-dev] Fwd: :: Setting Mac address on Vlan interface

[Neale Ranns (nranns)]

Hi Prabhjot,

Your explanation of what you want I think I understand; it’s the ability to set 
the src,dst MAC address of a packet as it egresses of VLAN interface. Where in 
this case a vlan interface is a 802.1Q interface and not a BVI*.
But I don’t understand why you want this. You say “we are not looking for any 
additional datapath lookup based on MAC”, in other words, the RX side does not 
care what the src,dst MAC addresses are, so why is it important what the TX 
side sets? Is it for the benefit of intervening switches? If so I still don’t 
understand why ☹

What is the issue you are trying to address by setting different src,dst MAC 
addresses? Perhaps there are existing means to achieve this already.

Regards,
neale

*In some vendor’s documentation ‘VLAN’ interfaces, also known as BVI, SVI or 
IRB (depending on your preferred vendor, platform or decade) is what VPP terms 
an BVI. This is an L3 port attached to a bridge-domain.

-Original Message-
From: "prabh...@techtrueup.com" <prabh...@techtrueup.com>
Date: Friday, 1 December 2017 at 18:37
To: "Neale Ranns (nranns)" <nra...@cisco.com>
Cc: "vpp-dev@lists.fd.io" <vpp-dev@lists.fd.io>, Omer Majeed 
<omer.maj...@rwth-aachen.de>
Subject: Re: [vpp-dev] Fwd: :: Setting Mac address on Vlan interface

hi Neale,
we are not looking for any additional datapath lookup based on MAC here.
this is related to one of the feature that we are trying to translate  
to VPP. where we need to handle and generate traffic with configure  
destination and source MAC. we have tried multiple options and were  
able to handle incoming traffic, but we were having issues sending  
traffic with specific source MAC particularly with ECMP routes.

so i only see two ways either we support configurable MAC address on  
vlan interface
or have some ability to configure which source MAC to use in the route  
configuration

please let me know if you want to understand the feature in detail. we  
can setup a short call for the same.

Regards,
Prabhjot

Quoting "Neale Ranns (nranns)" <nra...@cisco.com>:

> Hi Prabhjot,
>
> I would say it is possible, but one would need to place the NIC in  
> promiscuous mode for an L3 interface, do maybe do MAC to interface  
> matching in the data-plane which would cost many cycles. Or an rx  
> would you still want to match to input interface based only on the  
> VLAN Tag.
>
> I confess I don’t understand why you want such a feature, when the  
> VLAN tag identifies the sub-interface. Perhaps you could help me  
> understand.
>
> Thanks,
> neale
>
> -Original Message-
> From: "prabh...@techtrueup.com" <prabh...@techtrueup.com>
> Date: Friday, 1 December 2017 at 13:30
> To: Omer Majeed <omer.maj...@rwth-aachen.de>
    > Cc: "vpp-dev@lists.fd.io" <vpp-dev@lists.fd.io>, "Neale Ranns  
> (nranns)" <nra...@cisco.com>
> Subject: Re: [vpp-dev] Fwd: :: Setting Mac address on Vlan interface
>
> hi Neale,
>  we are expecting to be able to handle different MAC addresses for
> VLAN interfaces. This feature seems to be not available in VPP as of
> now.
>
> we also tried looking for possible work around, which were dead ends
> as of now. Please let us know if we agree to this as something that
> can be done for VPP, we can work on this and contribute if useful.
>
> please share your inputs
>
> Regards,
> Prabhjot
>
> Quoting Omer Majeed <omer.maj...@rwth-aachen.de>:
>
> > Hi Neale,
> >
> > Thanks for the reply.
> > A physical interface could have multiple Vlan interfaces and I  
> want traffic
> > originating from Vlan interface to have user defined Mac address 
rather
> > than parent's Mac address.
> >
> > In Linux we have this privilege to associate Mac addresses to Vlan
> > interfaces using ifconfig.
> > In Linux, we use vconfig to create Vlan interface and then we could
> > leverage ifconfig to configure our own Mac address on the Vlan  
> interface.
> >
> > Could we have something similar in VPP?
> >
> > Best Regards,
> > Omer
> >
> > On Wed, Nov 29, 2017 at 6:44 PM, Neale Ranns (nranns)  
> <nra...@cisco.com>
> > wrote:
> >
> >> Hi Omer,
> >>
> >>
>

Re: [vpp-dev] Fwd: :: Setting Mac address on Vlan interface

[Thomas F Herbert]

Omer,

I think you may be referring to 802.1ah otherwise known as PBB, 
mac-in-mac or provider backbone bridges?


--Tom

On 12/01/2017 12:37 PM, prabh...@techtrueup.com wrote:

hi Neale,
we are not looking for any additional datapath lookup based on MAC here.
this is related to one of the feature that we are trying to translate 
to VPP. where we need to handle and generate traffic with configure 
destination and source MAC. we have tried multiple options and were 
able to handle incoming traffic, but we were having issues sending 
traffic with specific source MAC particularly with ECMP routes.


so i only see two ways either we support configurable MAC address on 
vlan interface
or have some ability to configure which source MAC to use in the route 
configuration


please let me know if you want to understand the feature in detail. we 
can setup a short call for the same.


Regards,
Prabhjot

Quoting "Neale Ranns (nranns)" <nra...@cisco.com>:


Hi Prabhjot,

I would say it is possible, but one would need to place the NIC in 
promiscuous mode for an L3 interface, do maybe do MAC to interface 
matching in the data-plane which would cost many cycles. Or an rx 
would you still want to match to input interface based only on the 
VLAN Tag.


I confess I don’t understand why you want such a feature, when the 
VLAN tag identifies the sub-interface. Perhaps you could help me 
understand.


Thanks,
neale

-Original Message-
From: "prabh...@techtrueup.com" <prabh...@techtrueup.com>
Date: Friday, 1 December 2017 at 13:30
To: Omer Majeed <omer.maj...@rwth-aachen.de>
Cc: "vpp-dev@lists.fd.io" <vpp-dev@lists.fd.io>, "Neale Ranns 
(nranns)" <nra...@cisco.com>

Subject: Re: [vpp-dev] Fwd: :: Setting Mac address on Vlan interface

hi Neale,
 we are expecting to be able to handle different MAC 
addresses for

VLAN interfaces. This feature seems to be not available in VPP as of
now.

we also tried looking for possible work around, which were dead ends
as of now. Please let us know if we agree to this as something that
can be done for VPP, we can work on this and contribute if useful.

please share your inputs

Regards,
Prabhjot

Quoting Omer Majeed <omer.maj...@rwth-aachen.de>:

> Hi Neale,
>
> Thanks for the reply.
> A physical interface could have multiple Vlan interfaces and I 
want traffic
> originating from Vlan interface to have user defined Mac 
address rather

> than parent's Mac address.
>
> In Linux we have this privilege to associate Mac addresses to Vlan
> interfaces using ifconfig.
> In Linux, we use vconfig to create Vlan interface and then we 
could
> leverage ifconfig to configure our own Mac address on the Vlan 
interface.

>
> Could we have something similar in VPP?
>
> Best Regards,
> Omer
>
> On Wed, Nov 29, 2017 at 6:44 PM, Neale Ranns (nranns) 
<nra...@cisco.com>

> wrote:
>
>> Hi Omer,
>>
>>
>>
>> You can set the MAC address of a ‘host’ interface when it is 
created:

>>
>>   create host-interface name  [hw-addr ]
>>
>>
>>
>> you can also change it after creation:
>>
>>   set interface mac address  
>>
>>
>>
>> but you cannot set the MAC address of a VLAN interface. A VLAN 
interface
>> will always have the same MAC address as its parent/physical 
interface.

>>
>>
>>
>> Regards,
>>
>> Neale
>>
>>
>>
>>
>>
>> *From: *<vpp-dev-boun...@lists.fd.io> on behalf of Omer Majeed <
>> omer.maj...@rwth-aachen.de>
>> *Date: *Wednesday, 29 November 2017 at 11:45
>> *To: *"vpp-dev@lists.fd.io" <vpp-dev@lists.fd.io>
>> *Subject: *[vpp-dev] Fwd: :: Setting Mac address on Vlan 
interface

>>
>>
>>
>> Hi,
>>
>>
>>
>> I am trying to form an ecmp between Vlan interfaces. Traffic 
coming with
>> IP 1.1.1.5 would go through Vlan interfaces host-tap0.1 and 
host-tap1.1

>> forming ecmp.
>>
>>
>>
>> ip route add 1.1.1.5/32 table 3 via 1.1.1.5 host-tap0.1
>> ip route add 1.1.1.5/32 table 3 via 1.1.1.5 host-tap1.1
>>
>>
>> set ip arp host-tap0.1 1.1.1.5 02:00:00:00:00:02
>>
>> set ip arp host-tap1.1 1.1.1.5 02:00:00:00:00:02
>>
>>
>>
>> ip route add 1.1.1.5/32 table 5 via 1.1.1.5 host-tap2.1
>>
>> ip route add 1.1.1.5/32 ta

Re: [vpp-dev] Fwd: :: Setting Mac address on Vlan interface

[prabhjot]

hi Neale,
we are not looking for any additional datapath lookup based on MAC here.
this is related to one of the feature that we are trying to translate  
to VPP. where we need to handle and generate traffic with configure  
destination and source MAC. we have tried multiple options and were  
able to handle incoming traffic, but we were having issues sending  
traffic with specific source MAC particularly with ECMP routes.


so i only see two ways either we support configurable MAC address on  
vlan interface
or have some ability to configure which source MAC to use in the route  
configuration


please let me know if you want to understand the feature in detail. we  
can setup a short call for the same.


Regards,
Prabhjot

Quoting "Neale Ranns (nranns)" <nra...@cisco.com>:


Hi Prabhjot,

I would say it is possible, but one would need to place the NIC in  
promiscuous mode for an L3 interface, do maybe do MAC to interface  
matching in the data-plane which would cost many cycles. Or an rx  
would you still want to match to input interface based only on the  
VLAN Tag.


I confess I don’t understand why you want such a feature, when the  
VLAN tag identifies the sub-interface. Perhaps you could help me  
understand.


Thanks,
neale

-Original Message-
From: "prabh...@techtrueup.com" <prabh...@techtrueup.com>
Date: Friday, 1 December 2017 at 13:30
To: Omer Majeed <omer.maj...@rwth-aachen.de>
Cc: "vpp-dev@lists.fd.io" <vpp-dev@lists.fd.io>, "Neale Ranns  
(nranns)" <nra...@cisco.com>

Subject: Re: [vpp-dev] Fwd: :: Setting Mac address on Vlan interface

hi Neale,
 we are expecting to be able to handle different MAC addresses for
VLAN interfaces. This feature seems to be not available in VPP as of
now.

we also tried looking for possible work around, which were dead ends
as of now. Please let us know if we agree to this as something that
can be done for VPP, we can work on this and contribute if useful.

please share your inputs

Regards,
Prabhjot

Quoting Omer Majeed <omer.maj...@rwth-aachen.de>:

> Hi Neale,
>
> Thanks for the reply.
> A physical interface could have multiple Vlan interfaces and I  
want traffic

> originating from Vlan interface to have user defined Mac address rather
> than parent's Mac address.
>
> In Linux we have this privilege to associate Mac addresses to Vlan
> interfaces using ifconfig.
> In Linux, we use vconfig to create Vlan interface and then we could
> leverage ifconfig to configure our own Mac address on the Vlan  
interface.

>
> Could we have something similar in VPP?
>
> Best Regards,
> Omer
>
> On Wed, Nov 29, 2017 at 6:44 PM, Neale Ranns (nranns)  
<nra...@cisco.com>

> wrote:
>
>> Hi Omer,
>>
>>
>>
>> You can set the MAC address of a ‘host’ interface when it is created:
>>
>>   create host-interface name  [hw-addr ]
>>
>>
>>
>> you can also change it after creation:
>>
>>   set interface mac address  
>>
>>
>>
>> but you cannot set the MAC address of a VLAN interface. A  
VLAN interface
>> will always have the same MAC address as its parent/physical  
interface.

>>
>>
>>
>> Regards,
>>
>> Neale
>>
>>
>>
>>
>>
>> *From: *<vpp-dev-boun...@lists.fd.io> on behalf of Omer Majeed <
>> omer.maj...@rwth-aachen.de>
>> *Date: *Wednesday, 29 November 2017 at 11:45
>> *To: *"vpp-dev@lists.fd.io" <vpp-dev@lists.fd.io>
>> *Subject: *[vpp-dev] Fwd: :: Setting Mac address on Vlan interface
>>
>>
>>
>> Hi,
>>
>>
>>
>> I am trying to form an ecmp between Vlan interfaces. Traffic  
coming with
>> IP 1.1.1.5 would go through Vlan interfaces host-tap0.1 and  
host-tap1.1

>> forming ecmp.
>>
>>
>>
>> ip route add 1.1.1.5/32 table 3 via 1.1.1.5 host-tap0.1
>> ip route add 1.1.1.5/32 table 3 via 1.1.1.5 host-tap1.1
>>
>>
>> set ip arp host-tap0.1 1.1.1.5 02:00:00:00:00:02
>>
>> set ip arp host-tap1.1 1.1.1.5 02:00:00:00:00:02
>>
>>
>>
>> ip route add 1.1.1.5/32 table 5 via 1.1.1.5 host-tap2.1
>>
>> ip route add 1.1.1.5/32 table 5 via 1.1.1.5 host-tap3.1
>>
>>
>>
>> set ip arp host-tap2.1 1.1.1.5 02:00:00:00:00:01
>>
>> set ip arp host-tap3.

Re: [vpp-dev] Fwd: :: Setting Mac address on Vlan interface

[Neale Ranns (nranns)]

Hi Prabhjot,

I would say it is possible, but one would need to place the NIC in promiscuous 
mode for an L3 interface, do maybe do MAC to interface matching in the 
data-plane which would cost many cycles. Or an rx would you still want to match 
to input interface based only on the VLAN Tag.

I confess I don’t understand why you want such a feature, when the VLAN tag 
identifies the sub-interface. Perhaps you could help me understand.

Thanks,
neale

-Original Message-
From: "prabh...@techtrueup.com" <prabh...@techtrueup.com>
Date: Friday, 1 December 2017 at 13:30
To: Omer Majeed <omer.maj...@rwth-aachen.de>
Cc: "vpp-dev@lists.fd.io" <vpp-dev@lists.fd.io>, "Neale Ranns (nranns)" 
<nra...@cisco.com>
Subject: Re: [vpp-dev] Fwd: :: Setting Mac address on Vlan interface

hi Neale,
 we are expecting to be able to handle different MAC addresses for  
VLAN interfaces. This feature seems to be not available in VPP as of  
now.

we also tried looking for possible work around, which were dead ends  
as of now. Please let us know if we agree to this as something that  
can be done for VPP, we can work on this and contribute if useful.

please share your inputs

Regards,
Prabhjot

Quoting Omer Majeed <omer.maj...@rwth-aachen.de>:

> Hi Neale,
>
> Thanks for the reply.
> A physical interface could have multiple Vlan interfaces and I want 
traffic
> originating from Vlan interface to have user defined Mac address rather
> than parent's Mac address.
>
> In Linux we have this privilege to associate Mac addresses to Vlan
> interfaces using ifconfig.
> In Linux, we use vconfig to create Vlan interface and then we could
> leverage ifconfig to configure our own Mac address on the Vlan interface.
>
> Could we have something similar in VPP?
>
> Best Regards,
> Omer
>
> On Wed, Nov 29, 2017 at 6:44 PM, Neale Ranns (nranns) <nra...@cisco.com>
> wrote:
>
>> Hi Omer,
>>
>>
>>
>> You can set the MAC address of a ‘host’ interface when it is created:
>>
>>   create host-interface name  [hw-addr ]
>>
>>
>>
>> you can also change it after creation:
>>
>>   set interface mac address  
>>
>>
>>
>> but you cannot set the MAC address of a VLAN interface. A VLAN interface
>> will always have the same MAC address as its parent/physical interface.
>>
>>
>>
>> Regards,
>>
>> Neale
>>
>>
>>
>>
>>
>> *From: *<vpp-dev-boun...@lists.fd.io> on behalf of Omer Majeed <
>> omer.maj...@rwth-aachen.de>
>> *Date: *Wednesday, 29 November 2017 at 11:45
>> *To: *"vpp-dev@lists.fd.io" <vpp-dev@lists.fd.io>
>> *Subject: *[vpp-dev] Fwd: :: Setting Mac address on Vlan interface
>>
>>
>>
>> Hi,
>>
>>
>>
>> I am trying to form an ecmp between Vlan interfaces. Traffic coming with
>> IP 1.1.1.5 would go through Vlan interfaces host-tap0.1 and host-tap1.1
>> forming ecmp.
>>
>>
>>
>> ip route add 1.1.1.5/32 table 3 via 1.1.1.5 host-tap0.1
>> ip route add 1.1.1.5/32 table 3 via 1.1.1.5 host-tap1.1
>>
>>
>> set ip arp host-tap0.1 1.1.1.5 02:00:00:00:00:02
>>
>> set ip arp host-tap1.1 1.1.1.5 02:00:00:00:00:02
>>
>>
>>
>> ip route add 1.1.1.5/32 table 5 via 1.1.1.5 host-tap2.1
>>
>> ip route add 1.1.1.5/32 table 5 via 1.1.1.5 host-tap3.1
>>
>>
>>
>> set ip arp host-tap2.1 1.1.1.5 02:00:00:00:00:01
>>
>> set ip arp host-tap3.1 1.1.1.5 02:00:00:00:00:01
>>
>>
>>
>> However traffic flows having Source Mac addresses as that of respective
>> Vlan interfaces. Is there any way I could set Vlan interfaces with my own
>> desired Mac Addresses, so that the traffic has user defined Mac addresses
>> as Source Mac addresses.
>>
>>
>>
>> Thanks.
>>
>> Best Regards,
>>
>> Omer Majeed
>>
>>
>>
>>




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Re: [vpp-dev] Fwd: :: Setting Mac address on Vlan interface

[prabhjot]

hi Neale,
we are expecting to be able to handle different MAC addresses for  
VLAN interfaces. This feature seems to be not available in VPP as of  
now.


we also tried looking for possible work around, which were dead ends  
as of now. Please let us know if we agree to this as something that  
can be done for VPP, we can work on this and contribute if useful.


please share your inputs

Regards,
Prabhjot

Quoting Omer Majeed :


Hi Neale,

Thanks for the reply.
A physical interface could have multiple Vlan interfaces and I want traffic
originating from Vlan interface to have user defined Mac address rather
than parent's Mac address.

In Linux we have this privilege to associate Mac addresses to Vlan
interfaces using ifconfig.
In Linux, we use vconfig to create Vlan interface and then we could
leverage ifconfig to configure our own Mac address on the Vlan interface.

Could we have something similar in VPP?

Best Regards,
Omer

On Wed, Nov 29, 2017 at 6:44 PM, Neale Ranns (nranns) 
wrote:


Hi Omer,



You can set the MAC address of a ‘host’ interface when it is created:

  create host-interface name  [hw-addr ]



you can also change it after creation:

  set interface mac address  



but you cannot set the MAC address of a VLAN interface. A VLAN interface
will always have the same MAC address as its parent/physical interface.



Regards,

Neale





*From: * on behalf of Omer Majeed <
omer.maj...@rwth-aachen.de>
*Date: *Wednesday, 29 November 2017 at 11:45
*To: *"vpp-dev@lists.fd.io" 
*Subject: *[vpp-dev] Fwd: :: Setting Mac address on Vlan interface



Hi,



I am trying to form an ecmp between Vlan interfaces. Traffic coming with
IP 1.1.1.5 would go through Vlan interfaces host-tap0.1 and host-tap1.1
forming ecmp.



ip route add 1.1.1.5/32 table 3 via 1.1.1.5 host-tap0.1
ip route add 1.1.1.5/32 table 3 via 1.1.1.5 host-tap1.1


set ip arp host-tap0.1 1.1.1.5 02:00:00:00:00:02

set ip arp host-tap1.1 1.1.1.5 02:00:00:00:00:02



ip route add 1.1.1.5/32 table 5 via 1.1.1.5 host-tap2.1

ip route add 1.1.1.5/32 table 5 via 1.1.1.5 host-tap3.1



set ip arp host-tap2.1 1.1.1.5 02:00:00:00:00:01

set ip arp host-tap3.1 1.1.1.5 02:00:00:00:00:01



However traffic flows having Source Mac addresses as that of respective
Vlan interfaces. Is there any way I could set Vlan interfaces with my own
desired Mac Addresses, so that the traffic has user defined Mac addresses
as Source Mac addresses.



Thanks.

Best Regards,

Omer Majeed







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Re: [vpp-dev] Fwd: :: Setting Mac address on Vlan interface

[Omer Majeed]

Hi Neale,

Thanks for the reply.
A physical interface could have multiple Vlan interfaces and I want traffic
originating from Vlan interface to have user defined Mac address rather
than parent's Mac address.

In Linux we have this privilege to associate Mac addresses to Vlan
interfaces using ifconfig.
In Linux, we use vconfig to create Vlan interface and then we could
leverage ifconfig to configure our own Mac address on the Vlan interface.

Could we have something similar in VPP?

Best Regards,
Omer

On Wed, Nov 29, 2017 at 6:44 PM, Neale Ranns (nranns) 
wrote:

> Hi Omer,
>
>
>
> You can set the MAC address of a ‘host’ interface when it is created:
>
>   create host-interface name  [hw-addr ]
>
>
>
> you can also change it after creation:
>
>   set interface mac address  
>
>
>
> but you cannot set the MAC address of a VLAN interface. A VLAN interface
> will always have the same MAC address as its parent/physical interface.
>
>
>
> Regards,
>
> Neale
>
>
>
>
>
> *From: * on behalf of Omer Majeed <
> omer.maj...@rwth-aachen.de>
> *Date: *Wednesday, 29 November 2017 at 11:45
> *To: *"vpp-dev@lists.fd.io" 
> *Subject: *[vpp-dev] Fwd: :: Setting Mac address on Vlan interface
>
>
>
> Hi,
>
>
>
> I am trying to form an ecmp between Vlan interfaces. Traffic coming with
> IP 1.1.1.5 would go through Vlan interfaces host-tap0.1 and host-tap1.1
> forming ecmp.
>
>
>
> ip route add 1.1.1.5/32 table 3 via 1.1.1.5 host-tap0.1
> ip route add 1.1.1.5/32 table 3 via 1.1.1.5 host-tap1.1
>
>
> set ip arp host-tap0.1 1.1.1.5 02:00:00:00:00:02
>
> set ip arp host-tap1.1 1.1.1.5 02:00:00:00:00:02
>
>
>
> ip route add 1.1.1.5/32 table 5 via 1.1.1.5 host-tap2.1
>
> ip route add 1.1.1.5/32 table 5 via 1.1.1.5 host-tap3.1
>
>
>
> set ip arp host-tap2.1 1.1.1.5 02:00:00:00:00:01
>
> set ip arp host-tap3.1 1.1.1.5 02:00:00:00:00:01
>
>
>
> However traffic flows having Source Mac addresses as that of respective
> Vlan interfaces. Is there any way I could set Vlan interfaces with my own
> desired Mac Addresses, so that the traffic has user defined Mac addresses
> as Source Mac addresses.
>
>
>
> Thanks.
>
> Best Regards,
>
> Omer Majeed
>
>
>
>
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Re: [vpp-dev] Fwd: :: Setting Mac address on Vlan interface

[Neale Ranns (nranns)]

Hi Omer,

You can set the MAC address of a ‘host’ interface when it is created:
  create host-interface name  [hw-addr ]

you can also change it after creation:
  set interface mac address  

but you cannot set the MAC address of a VLAN interface. A VLAN interface will 
always have the same MAC address as its parent/physical interface.

Regards,
Neale


From:  on behalf of Omer Majeed 

Date: Wednesday, 29 November 2017 at 11:45
To: "vpp-dev@lists.fd.io" 
Subject: [vpp-dev] Fwd: :: Setting Mac address on Vlan interface

Hi,

I am trying to form an ecmp between Vlan interfaces. Traffic coming with IP 
1.1.1.5 would go through Vlan interfaces host-tap0.1 and host-tap1.1 forming 
ecmp.

ip route add 1.1.1.5/32 table 3 via 1.1.1.5 host-tap0.1
ip route add 1.1.1.5/32 table 3 via 1.1.1.5 host-tap1.1

set ip arp host-tap0.1 1.1.1.5 02:00:00:00:00:02
set ip arp host-tap1.1 1.1.1.5 02:00:00:00:00:02

ip route add 1.1.1.5/32 table 5 via 1.1.1.5 host-tap2.1
ip route add 1.1.1.5/32 table 5 via 1.1.1.5 host-tap3.1

set ip arp host-tap2.1 1.1.1.5 02:00:00:00:00:01
set ip arp host-tap3.1 1.1.1.5 02:00:00:00:00:01

However traffic flows having Source Mac addresses as that of respective Vlan 
interfaces. Is there any way I could set Vlan interfaces with my own desired 
Mac Addresses, so that the traffic has user defined Mac addresses as Source Mac 
addresses.

Thanks.
Best Regards,
Omer Majeed

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