[c-nsp] Sup720 + EoMPLS type interworking

[Alex Rubenstein]

So then:

interface GigabitEthernet3/5
  mtu 9216
  switchport
  switchport trunk encapsulation dot1q
  switchport mode trunk
  switchport trunk allowed vlan 11

interface Vlan11
  mtu 9192
  ip address a.b.c.d 255.255.255.254
  mls netflow sampling


is precisely the same as:

interface GigabitEthernet3/5.11
  encapsulation dot1Q 11
  mtu 9192
  ip address a.b.c.d 255.255.255.254
  mls netflow sampling


With the caveat that vlan11 (which is not an SVI, i am guessing) cannot be 
presenting on any other physical port?

Can you even do a "int vl11" in addition to the subint?

Will the traffic on 3/5.11 show up on any other trunk port in the switch?








On Sat, 4 Mar 2006, David Freedman wrote:

> Well, lets try:
>
> sup720#  conf t
> Enter configuration commands, one per line.  End with CNTL/Z.
> sup720(config)#int g13/4.100
> sup720(config-subif)#encapsulation dot1Q 100
> Command rejected: VLAN 100 already in use by interface Vlan100
> sup720(config-subif)#
>
> Looks like its shared to me...
>
>
> Dave.
>
>
> On 2006-03-04, Alex Rubenstein <alex at nac.net> wrote:
>>
>>
>>>> Gosh, I didn't think that subinterfacing non-OSM ports was possible on
>>>> the catalyst, I wish I had known this earlier.
>>>
>>> This showed up in SXE. We've played with it in the lab and it works as
>>> expected.
>>
>> Question is -- are the subinterfaces shared? Meaning, gi1/1.100 the same
>> vlan has gi1/2.100?
>>
>> What hardware? Only 720's?
>>
>>
>>
>
>
>

-- 
Alex Rubenstein, AR97, K2AHR, alex at nac.net, latency, Al Reuben
Net Access Corporation, 800-NET-ME-36, http://www.nac.net