Hi Farid, >From an old case I had open with Juniper:
>The EX4550 has an ARP table of maximum 8k entries. > These entries are tracked in the kernel through something called tokens. > Each ARP entry is a token. > > Because we have only 8k tokens available, from here we have the maximum > number of ARP entries. > > However, because of how the chipset of EX4550 is designed, the MPLS LSPs are > also making use of the same tokens. > But each MPLS LSP is using 8 tokens. Therefore, 1000 LSPs would use all > tokens and no ARP can be learned. > > The token usage is scaled up by the number of ECMP next-hops. So 1 LSP with 4 > ECMP next-hops will take 1*8*4=32 tokens. -- sam On 24 Jul 2013, at 11:28, "Bouzemarene, Farid (ATS)" <[email protected]> wrote: > Hello, > > Can you clarify the MPLS limits ? > > Thx > > ----- Message d'origine ----- > De : Sam [mailto:[email protected]] > Envoyé : Wednesday, July 24, 2013 10:39 AM > À : Luca Salvatore <[email protected]> > Cc : [email protected] <[email protected]> > Objet : Re: [j-nsp] EX4550 version > > I used the 12.3R2.5 for quite some time now without any issue. The platform > has its limitations (especially related to how MPLS is handled), but if > you're just using it for L2 or basic L3 it works just fine. > > -- > sam > > On 24 Jul 2013, at 03:27, Luca Salvatore <[email protected]> wrote: > >> Hi All, >> >> Just got a couple of new EX4550 switches... current recommended version is >> 12.2r2.5 >> But I just saw tha the 12.2 train is up release 5.3. >> >> Just wondering what the rest of you guys are running and if you have any >> horror stories. >> I'm not doing VC with these guys, they are going to be a pretty simple layer >> 2 aggregation type switch. >> >> Thanks. >> >> _______________________________________________ >> juniper-nsp mailing list [email protected] >> https://puck.nether.net/mailman/listinfo/juniper-nsp > > > _______________________________________________ > juniper-nsp mailing list [email protected] > https://puck.nether.net/mailman/listinfo/juniper-nsp _______________________________________________ juniper-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/juniper-nsp
