yes
Michael Bray wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
Anyone know if you can pass 802.1q over Aironet bridges?
-mdb
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Message Posted at:
http://www.groupstudy.com/form/read.php?f=7i=42836t=42833
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- Original Message -
From: Steven A. Ridder
To:
Sent: Monday, April 29, 2002 1:30 PM
Subject: Re: Trunking over Aironet bridge? [7:42833]
yes
Michael Bray wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
Anyone know if you can pass 802.1q over Aironet bridges?
-mdb
yes, you must change the default frame size on the ethernet
side of both
bridges to 1522 (default 1518). As far as the radio is
concern it will pass
the frames out over the wireless. You will need a switch on
the other end of
the bridge to recieve the frames and break out the vlans.
Marko Milivojevic wrote:
yes, you must change the default frame size on the ethernet
side of both
bridges to 1522 (default 1518). As far as the radio is
That would be required for ISL, but 802.1q should go with no
changes?
Nope, that's for 802.1Q. ISL has a 27-byte header.
- Original Message -
From: Marko Milivojevic
To:
Sent: Monday, April 29, 2002 4:24 PM
Subject: RE: Trunking over Aironet bridge? [7:42833]
yes, you must change the default frame size on the ethernet
side of both
bridges to 1522 (default 1518). As far as the radio is
concern
Actually, 802.1q adds four bytes, ISL encapsulation makes the frame much
larger (by 30 bytes) I so the increase from 1518 to 1522 would make
sense for dot1q and an increase from 1518 to 1548 would be needed for ISL
(if it's even supported on the 802.11 stuff, but I can't speak on that).
An ISL frame can be as big as 1518 + 30 = 1548 bytes. The original frame is
encapsulated in a 26-byte header and a 4-byte CRC.
An 802.1Q frame can be as big as 1522 bytes. 802.1Q inserts a 4-byte header
immediately the destination and source MAC addresses (and source-routing
information, if
-Original Message-
From: Priscilla Oppenheimer [mailto:[EMAIL PROTECTED]]
Sent: Monday, April 29, 2002 9:19 PM
To: [EMAIL PROTECTED]
Subject: RE: Trunking over Aironet bridge? [7:42833]
An ISL frame can be as big as 1518 + 30 = 1548 bytes. The original frame is
encapsulated in a 26-byte header
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