Re: [trill] New Version Notification for draft-hao-trill-irb-05.txt

Muhammad Durrani <> Fri, 17 October 2014 08:32 UTC

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From: Muhammad Durrani <>
To: "Xiaorong (Andrew) Qu" <>, "" <>, "" <>
Date: Fri, 17 Oct 2014 01:31:50 -0700
Thread-Topic: New Version Notification for draft-hao-trill-irb-05.txt
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Cc: "Donald E. Eastlake 3rd" <>, Liang Xia <>, Weiguo Hao <>, Li Yizhou <>
Subject: Re: [trill] New Version Notification for draft-hao-trill-irb-05.txt
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I agree with Andrew – suggested distributed model will solve scale issues as seen with centralized model for ARP/VRRP etc. This is essential for large deployments with massive hosts targeted for scale out fabric.
The proposed draft will help product implementing TRILL based fabric for hyper scale data center.


From: Xiaorong (Andrew) Qu []
Sent: Friday, October 17, 2014 12:43 AM
Cc: Li Yizhou; Liang Xia; Weiguo Hao; Muhammad Durrani; Donald E. Eastlake 3rd
Subject: Re: New Version Notification for draft-hao-trill-irb-05.txt

Hi Weiguo,

Thanks a lot.

This distributed gateway proposal helps resolve ARP storm kind of issues, architect is more clean than centralized
model.  solving VRRP scalability issue when centralized model is utilized for large number L2 segments.

Specially when TRILL is used to form network fabric that is more than large L2 network,  distributed gateway
works seemlessly like one system with each interface configured as L3 interface.  To servers,  each L3 interface is
a nature default gateway that is distributed manner.


On Tue, Oct 14, 2014 at 8:10 PM, <<>> wrote:

A new version of I-D, draft-hao-trill-irb-05.txt
has been successfully submitted by Weiguo Hao and posted to the
IETF repository.

Name:           draft-hao-trill-irb
Revision:       05
Title:          TRILL Distributed Layer 3 Gateway
Document date:  2014-10-15
Group:          Individual Submission
Pages:          20

   Currently TRILL protocol provides optimal pair-wise data frame forwarding
for    layer 2 intra-subnet traffic but not for layer 3 inter-subnet traffic.
A    centralized gateway solution is typically used for layer 3 inter-subnet
traffic    forwarding but has following issues:

Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at<>.

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