>If Cisco were to add-on to dot1q, how would it be able to communicate with
>other non-Cisco routers using 802.1q?
Luckily, the earlier quote isn't quite correct. It's IEEE that is
augmenting 802.1Q to include the good ISL extensions such as spanning
tree per VLAN. Expect the industry generally to support the same
functionality.
Some of Cisco's recent acquisitions in the switch area only had
chipsets that supported 802.1Q.
>
>
>>From: Chris Supino <[EMAIL PROTECTED]>
>>Reply-To: Chris Supino <[EMAIL PROTECTED]>
>>To: Jun Pati <[EMAIL PROTECTED]>, [EMAIL PROTECTED]
>>Subject: RE: ISL vs. 802.1Q
>>Date: Wed, 31 Jan 2001 21:04:30 -0500
>>
>>Jun,
>>
>>Used to be that ISL supported a spanning-tree per VLAN, where Dot1q
>>supported only a single spanning-tree. I was told at a seminar recently
>>that
>>Cisco has expanded the capabilities of their implementation of Dot1q, and
>>it
>>is now almost as fully featured as ISL, including supporting a
>>spanning-tree
>>per vlan. ISL is being phased out.
>>
>>Christopher Supino
>>MCSE, MCP+I, CCNA, CNA Netware 5, Compaq ASE
>>Senior Systems Engineer
>>TransNet Corp.
>>
>>-----Original Message-----
>>From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
>>Jun Pati
>>Sent: Wednesday, January 31, 2001 7:29 PM
>>To: [EMAIL PROTECTED]
>>Subject: ISL vs. 802.1Q
>>
>>
>>What is the advantage of using ISL on an all-Cisco network compared to
>>dot1Q
>>aside from being able to handle frames larger than the ethernet mtu.
>>
>>
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