[j-nsp] EX4200 virtual chassis problem, master going into linecard mode

Victor Sudakov vas at mpeks.tomsk.su
Wed Jul 25 05:32:52 EDT 2018


Catalin Dominte wrote:
> 
> 
> >
> > I've encountered an odd problem with adding EX4200s (running 12.3R6.6)
> > to Virtual Chassis with a nonprovisioned configuration file.

[dd]

> >
> > Looks fine, doesn't it? However, if I later poweroff the Backup switch
> > (BM0217040019), the current Master switch (BM0213317561) goes into linecard (sic!)
> > mode! And I lose ssh access to it. I can undo the disaster only from the
> > serial console.
> >

> If you only have 2 members 

Yes, I do.

> in a virtual chassis you could add:
> 
> set virtual-chassis no-split-detection
> 
> This will ensure that if both VC ports go down, the master routing engine carries on working.

Are you referring to "Scenario B" in
https://kb.juniper.net/InfoCenter/index?page=content&id=KB13879 ?
or a different case?

-- 
Victor Sudakov,  VAS4-RIPE, VAS47-RIPN
AS43859


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