The MPLS-OPS Archive

[Yinglam Cheung <ccie6961@yahoo.com>]

It's useless if you have multiple ISP/AS in between, but it'll be very useful to preserve the RIP hop count between a single BGP AS, in this case, like a MPLS backbone using single AS.

A caveat I have found in low end Cisco routers is that, for some reason, it changes the hop count to 16 (which is indefinite) if I uses transparent. In high end router, I don't see this problem.

Kishoren <kishoren@huawei.com> wrote:

Hi Roumen,

 

    Thank you for your reply.

 

    You are saying that RIP hopcount is preserved and transported on BGP.

Can you please tell me what is the use of doing this. MED may not be sent transparently

if there are many routers of ISP involved while routing. And RIP hopcount itself

will not be of much use as there are other PE routers (transparent)

whose hopcount is not accounted.

 

Regards

Nanda kishore

 

P.s: Pls find a link in CISCO where they used this command

http://www.cisco.com/en/US/products/hw/routers/ps314/products_feature_guide_chapter09186a008007e267.html

 

----------------------------------------------
Nanda Kishore
Huawei Technologies
Phone:  5217152 ext: 670
            5354259 (R)
Huawei 3rd Floor,
Leela Galleria, Airport Road,
Bangalore - India
----------------------------------------------

----- Original Message -----

From: Doukov, Roumen

To: 'Kishoren'

Sent: Monday, May 19, 2003 3:47 PM

Subject: RE: [MPLS-OPS]: Reg: redistrbiute - transparent

You preserve the RIP hop count, so the CE-PE RIP hop-count is copied into BGP MED and BGP MED copied back to RIP hop count when route is put back into RIP.

Roumen

-----Original Message-----
From: Kishoren [mailto:kishoren@huawei.com]
Sent: 19 May 2003 10:35
To: mpls-ops@mplsrc.com
Subject: [MPLS-OPS]: Reg: redistrbiute - transparent

Hi,

 

    Can any one explain what does "redistribute bgp transparent"

will do, if I am redistributing BGP routes into RIP. I couldn't get

any information on that.

 

A link explaining this will be great.

 

Regards

Nanda kishore

 

 

----------------------------------------------
Nanda Kishore
Huawei Technologies
Phone:  5217152 ext: 670
            5354259 (R)
Huawei 3rd Floor,
Leela Galleria, Airport Road,
Bangalore - India
----------------------------------------------

best regards,
Yinglam Cheung
CCIE #6961 (R&S, C&S, Security)

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