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RE: Does ISL Support...........? posted 11/13/2006
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I should have said ingress untagged traffic


-----Original Message-----
From: nobody@xxxxxxxxxxxxxx [mailto:nobody@xxxxxxxxxxxxxx] On Behalf Of
Daniel_Steyn@xxxxxxxx
Sent: Monday, November 13, 2006 9:30 AM
To: alexeim@xxxxxxxxxxxxxxx; electroheart143@xxxxxxxxx
Cc: ccielab@xxxxxxxxxxxxxx
Subject: RE: Does ISL Support...........?

ISL does support a native VLAN in which ingress untagged VLANs are then
tagged with the vlan specified.


-----Original Message-----
From: nobody@xxxxxxxxxxxxxx [mailto:nobody@xxxxxxxxxxxxxx] On Behalf Of
Alexei Monastyrnyi
Sent: Monday, November 13, 2006 9:19 AM
To: Rajiv
Cc: ccielab@xxxxxxxxxxxxxx
Subject: Re: Does ISL Support...........?

Hi.

As per Q1, since ISL adds its specific L2 header to each frame, all
frames have to have it, otherwise the frame should be considered as
invalid. In this sense there should be no untagged frames for ISL.

As per Q2, if I remember right, both protocols support up to 4095 VLANs.

HTH
A.

Rajiv wrote:
> Hi all,
>    
>   I want to ask that Does ISL supports the processing of untagged
frames?
>    
>   Also does 802.1q supports fewer VLANs than ISL?
>    
>   Regards,
>   Rajiv
>
>  
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