Re: [j-nsp] Drawbacks when using QFX5100 and EX4300 in mixed VCF mode

2014-08-21 Thread Pavel Lunin
19.08.2014 19:51, Sebastian Wiesinger wrote: --- Hardware Requirements for a Virtual Chassis Fabric A VCF can contain up to four devices configured as spines, and up to twenty total devices. All spine devices must be

Re: [j-nsp] Drawbacks when using QFX5100 and EX4300 in mixed VCF mode

2014-08-21 Thread Chuck Anderson
On Thu, Aug 21, 2014 at 05:07:05PM +0400, Pavel Lunin wrote: except maybe some corner-cases (which I am not aware of). Using QFX3600 as leafs when spines are QFX5100 is non-reasonable from the pure performance PoV as QFX3600 is a 40GE switch and QFX5100 is 10GE. What about EX4300—of course any

Re: [j-nsp] Drawbacks when using QFX5100 and EX4300 in mixed VCF mode

2014-08-21 Thread Kurt Bales
The corner case for QFX3500 is that it is still the only Juniper switch with native FC support, though most others have good FCoE transport support. Regards, Kurt Bales @networkjanitor JNCIE-ENT #368 On Thu, Aug 21, 2014 at 6:07 AM, Pavel Lunin plu...@senetsy.ru wrote: 19.08.2014 19:51,

Re: [j-nsp] Drawbacks when using QFX5100 and EX4300 in mixed VCF mode

2014-08-21 Thread Andy Litzinger
+1 regarding input on VCF Does anyone have any practical experience with a VCF either mixed-mode or not? We're evaluating it as a replacement for legacy 6509s. Cisco is pitching a Nexus 6004 + FEX solution. regards, -andy On Tue, Aug 19, 2014 at 8:54 AM, Sebastian Wiesinger

[j-nsp] Drawbacks when using QFX5100 and EX4300 in mixed VCF mode

2014-08-19 Thread Sebastian Wiesinger
Hello, Juniper supports mixing QFX5100 and EX4300 in a Virtual Chassis Fabric mixed mode but they talk about some vague performance and/or impact when doing so: --- Hardware Requirements for a Virtual Chassis Fabric A VCF can

Re: [j-nsp] Drawbacks when using QFX5100 and EX4300 in mixed VCF mode

2014-08-19 Thread Kurt Bales
Hello Sebastian, When using a mixed mode VC, most of the features and scale drop back to Lowest Common Denominator. Eg the device with the smallest MAC size sets the size for all members etc. Here is a list of features compared for QFX Virtual Chassis Fabric:

Re: [j-nsp] Drawbacks when using QFX5100 and EX4300 in mixed VCF mode

2014-08-19 Thread Sebastian Wiesinger
* Sebastian Wiesinger juniper-...@ml.karotte.org [2014-08-19 17:51]: Hello, Juniper supports mixing QFX5100 and EX4300 in a Virtual Chassis Fabric mixed mode but they talk about some vague performance and/or impact when doing so: Aaand after I sent this, I get the link to a page listing the