Junos Asymmetric Routing

Florian Weimer fw at deneb.enyo.de
Sun May 30 11:54:59 CDT 2010


* Rubens Kuhl:

> On Sun, May 30, 2010 at 1:46 PM, Florian Weimer <fw at deneb.enyo.de> wrote:
>> * Randy Bush:
>>
>>>> your perfectly fine multihop BGP session could break when rerouting
>>>> occurs.
>>>
>>> one of the many reasons that there are no perfectly fine multi-hop bgp
>>> sessions.
>>
>> Uhm, is there a way around them when building the iBGP mesh?
>
> Not using flow-based devices as datagram routers when they aren't ?

Then the sessions are still multi-hop. 8-)

Flow-based forwarding is only bad if you notice it.  Usually, that
happens with random packets you don't want to forward anyway, but
Juniper managed to build something that's unusable in a fairly wide
range of scenarios.




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