[j-nsp] FEB/FPC Complexity

[raymondh (NSP)]

http://www.juniper.net/techpubs/software/junos/junos90/swconfig-high-availability/configuring-feb-redundancy-on-the-m120-router.html
https://www.juniper.net/techpubs/software/junos/junos90/swconfig-system-basics/configuring-fpc-to-feb-connectivity-on-m120-routers.html


--raymondh


On Apr 7, 2009, at 12:41 AM, Andrew Jimmy wrote:

> Thanks for the email, the question is: Is it possible to use two  
> FEBs for
> two FPC (type 1) while both FEBs are acting active/standby to each  
> other so
> if one FEB goes offline the other can serve both FPCs. If yes, can  
> some help
> in configuring this.
>
> -----Original Message-----
> From: raymondh (NSP) [mailto:raymondh.nsp at gmail.com]
> Sent: Monday, April 06, 2009 9:17 PM
> To: Andrew Jimmy
> Cc: juniper-nsp at puck.nether.net
> Subject: Re: [j-nsp] FEB/FPC Complexity
>
> A maximum of two Type 1 FPCs and one Type 2 or Type 3 compact FPC can
> be mapped per FEB.
> Do the math. Each FEB can hold up to 20G.
>
> To achieve to the N+1 concept, you'll need to do some basic math and
> FPC selection / PIC (Good to have or need to have / alternative
> solution).
>
> A general concept of the math (related to some other questions).
> https://puck.nether.net/pipermail/juniper-nsp/2009-February/ 
> 012466.html
>
>
> --raymondh
>
> On Apr 6, 2009, at 10:53 PM, Andrew Jimmy wrote:
>
>> I come to know that M120 can provide N:1 FEB redundancy.
>>
>>
>>
>> As per juniper DOCS, A FEB redundancy group is a named collection of
>> two or
>> more Forwarding Engine Boards (FEBs) that can improve interface
>> availability. You can design your redundant FEB configuration to
>> provide
>> backup on a one-to-one basis, or you can provide one backup for
>> multiple
>> FEBs. Each FEB redundancy group can contain only one primary FEB.
>>
>>
>>
>> Can someone write some text about primary FEB and secondary FEBs,
>> what is
>> the difference? What if you have two  FEBs type 1 along with two
>> FPCs type
>> 1, Is it possible to use both FEBs for each FPC 1+1 while both FEBs
>> are
>> acting active/standby to each other so if one FEB goes offline the
>> other can
>> serve both FPCs. If yes, can some help in configuring this.
>>
>> _______________________________________________
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>> https://puck.nether.net/mailman/listinfo/juniper-nsp
>
>