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тАО11-02-2010 03:07 AM
тАО11-02-2010 03:07 AM
QinQ *through* 5406zl
We are trying to transport jumbo-frames containing double tagged VLAN. Since the outer VLAN tag is tagged through, and the Jumbo knob is switched on, I'd think this was a walk in the park. The QinQ is done by Juniper EX switches. Placing a Cisco something between them works fine - as it should do. However, when placing a 5406 between them, traffic stops to flow. We do not have an advanced license for this switch (to support adding/dropping an extra tag), and the question is: Do I need this to transport a double tagged frame *through* the switch?
--[EX]==============[EX]-- OK
--[EX]====[Cisco]====[EX]-- OK
--[EX]====[5406]=====[EX]-- Not OK
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тАО11-02-2010 05:49 AM
тАО11-02-2010 05:49 AM
Re: QinQ *through* 5406zl
See this link for more info:
http://perlmonkey.blogspot.com/2010/07/cisco-versus-ieee-qinq.html
In the 5406 you can also change the vlan type field, so perhaps you could as well on the Juniper, so if the value was 0x8100, the 5406 may recognize it as valid and simply pass it through with Jumbo frames enabled.
Also see this info in the 5406 manual, page 8-12:
http://cdn.procurve.com/training/Manuals/3500-5400-6200-6600-8200-ATG-Mar10-8-QinQ.pdf
Can you grab an inbound pkt capture to the 5406 to verify the vlan type field value?
You are also correct in order to configure QinQ on the 5406, the 5406 requires the "Premium License" in order to enable that feature (as well as OSPF, Multicast routing, IPv6 routing).
hth...Jeff
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тАО11-02-2010 06:00 AM
тАО11-02-2010 06:00 AM
Re: QinQ *through* 5406zl
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тАО11-02-2010 06:27 AM
тАО11-02-2010 06:27 AM
Re: QinQ *through* 5406zl
Ok, what version of code have you tried?
Do you have an inbound pkt capture from the Juniper to the 5406?
Can we see a sanitized 5406 config?
I'm guessing you've been all through this with HPN tech support, so perhaps it is moot.
I have done various QinQ configs in my lab on all ProVision ASIC switches as I have the PremLic on all of them, but I have not tried anything like your scenario.
Sorry I couldn't be more help.
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тАО11-16-2010 10:54 PM
тАО11-16-2010 10:54 PM
Re: QinQ *through* 5406zl
Now, for other types of tags the 5406 simply drops the frame. This is not wanted behaviour, and is supposedly escalated within HP.
Thought you'd like to know :)
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тАО11-16-2010 11:24 PM
тАО11-16-2010 11:24 PM