[j-nsp] TCN guard on Juniper EX

Mark Tees marktees at gmail.com
Wed Sep 11 07:44:08 EDT 2013



Looks like someone else with the same issue. Careful taking your layer 2
domains too far :D


On Wed, Sep 11, 2013 at 8:18 PM, Dennis Hagens <root at ipaddr.nl> wrote:

> Hi All,
> Is there some way to filter out STP TCN BPDU's on a Juniper EX series
> switch?
> We have some old Netgears in our office environment (yes, I need to get
> rid of those) which send TCN's on edge port flaps.
> This causes a lot of reconvergence / mac table flushes on our datacenter
> switches, which are connected via layer 2 with the office. We currently
> hooked up an HP switch with TCN  guard to mitigate this, but this
> introduces a SPOF.
> Any ideas?
> Thanks,
> Dennis Hagens
> _______________________________________________
> juniper-nsp mailing list juniper-nsp at puck.nether.net
> https://puck.nether.net/mailman/listinfo/juniper-nsp


Mark L. Tees

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